Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

25 files changed, 3590 insertions, 0 deletions

diff --git a/remote/test/puppeteer/tools/analyze_issue.mjs b/remote/test/puppeteer/tools/analyze_issue.mjs
new file mode 100755
index 0000000000..74e35ca3f8
--- /dev/null
+++ b/remote/test/puppeteer/tools/analyze_issue.mjs
@@ -0,0 +1,280 @@
+#!/usr/bin/env node
+// @ts-check
+
+'use strict';
+
+import {writeFile, mkdir, copyFile} from 'fs/promises';
+import {dirname, join} from 'path';
+import semver from 'semver';
+import {fileURLToPath} from 'url';
+import core from '@actions/core';
+import packageJson from '../packages/puppeteer-core/package.json' assert {type: 'json'};
+
+const codifyAndJoinValues = values => {
+  return values
+    .map(value => {
+      return `\`${value}\``;
+    })
+    .join(' ,');
+};
+const formatMessage = value => {
+  return value.trim();
+};
+const removeVersionPrefix = value => {
+  return value.startsWith('v') ? value.slice(1) : value;
+};
+
+const LAST_PUPPETEER_VERSION = packageJson.version;
+if (!LAST_PUPPETEER_VERSION) {
+  core.setFailed('No maintained version found.');
+}
+const LAST_SUPPORTED_NODE_VERSION = removeVersionPrefix(
+  packageJson.engines.node.slice(2).trim()
+);
+
+const SUPPORTED_OSES = ['windows', 'macos', 'linux'];
+const SUPPORTED_PACKAGE_MANAGERS = ['yarn', 'npm', 'pnpm'];
+
+const ERROR_MESSAGES = {
+  unsupportedOs(value) {
+    return formatMessage(`
+This issue has an unsupported OS: \`${value}\`. Only the following operating systems are supported: ${codifyAndJoinValues(
+      SUPPORTED_OSES
+    )}. Please verify the issue on a supported OS and update the form.
+`);
+  },
+  unsupportedPackageManager(value) {
+    return formatMessage(`
+This issue has an unsupported package manager: \`${value}\`. Only the following package managers are supported: ${codifyAndJoinValues(
+      SUPPORTED_PACKAGE_MANAGERS
+    )}. Please verify the issue using a supported package manager and update the form.
+`);
+  },
+  invalidPackageManagerVersion(value) {
+    return formatMessage(`
+This issue has an invalid package manager version: \`${value}\`. Versions must follow [SemVer](https://semver.org/) formatting. Please update the form with a valid version.
+`);
+  },
+  unsupportedNodeVersion(value) {
+    return formatMessage(`
+This issue has an unsupported Node.js version: \`${value}\`. Only versions above \`v${LAST_SUPPORTED_NODE_VERSION}\` are supported. Please verify the issue on a supported version of Node.js and update the form.
+`);
+  },
+  invalidNodeVersion(value) {
+    return formatMessage(`
+This issue has an invalid Node.js version: \`${value}\`. Versions must follow [SemVer](https://semver.org/) formatting. Please update the form with a valid version.
+`);
+  },
+  unsupportedPuppeteerVersion(value) {
+    return formatMessage(`
+This issue has an outdated Puppeteer version: \`${value}\`. Please verify your issue on the latest \`${LAST_PUPPETEER_VERSION}\` version. Then update the form accordingly.
+`);
+  },
+  invalidPuppeteerVersion(value) {
+    return formatMessage(`
+This issue has an invalid Puppeteer version: \`${value}\`. Versions must follow [SemVer](https://semver.org/) formatting. Please update the form with a valid version.
+`);
+  },
+};
+
+(async () => {
+  let input = '';
+  // @ts-expect-error: `iterator` is new and experimental.
+  for await (const chunk of process.stdin.iterator({
+    destroyOnReturn: false,
+  })) {
+    input += chunk;
+  }
+  input = JSON.parse(input).trim();
+
+  let mvce = '';
+  let error = '';
+  let configuration = '';
+  let puppeteerVersion = '';
+  let nodeVersion = '';
+  let packageManagerVersion = '';
+  let packageManager = '';
+  let os = '';
+  const behavior = {};
+  const lines = input.split('\n');
+  {
+    /** @type {(value: string) => void} */
+    let set = () => {
+      return void 0;
+    };
+    let j = 1;
+    let i = 1;
+    for (; i < lines.length; ++i) {
+      if (lines[i].startsWith('### Bug behavior')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          if (value.match(/\[x\] Flaky/i)) {
+            behavior.flaky = true;
+          }
+          if (value.match(/\[x\] pdf/i)) {
+            behavior.noError = true;
+          }
+        };
+      } else if (lines[i].startsWith('### Minimal, reproducible example')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          mvce = value;
+        };
+      } else if (lines[i].startsWith('### Error string')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          if (value.match(/no error/i)) {
+            behavior.noError = true;
+          } else {
+            error = value;
+          }
+        };
+      } else if (lines[i].startsWith('### Puppeteer configuration')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          configuration = value;
+        };
+      } else if (lines[i].startsWith('### Puppeteer version')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          puppeteerVersion = removeVersionPrefix(value);
+        };
+      } else if (lines[i].startsWith('### Node version')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          nodeVersion = removeVersionPrefix(value);
+        };
+      } else if (lines[i].startsWith('### Package manager version')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          packageManagerVersion = removeVersionPrefix(value);
+        };
+      } else if (lines[i].startsWith('### Package manager')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          packageManager = value.toLowerCase();
+        };
+      } else if (lines[i].startsWith('### Operating system')) {
+        set(lines.slice(j, i).join('\n').trim());
+        j = i + 1;
+        set = value => {
+          os = value.toLowerCase();
+        };
+      }
+    }
+    set(lines.slice(j, i).join('\n').trim());
+  }
+
+  let runsOn;
+  switch (os) {
+    case 'windows':
+      runsOn = 'windows-latest';
+      break;
+    case 'macos':
+      runsOn = 'macos-latest';
+      break;
+    case 'linux':
+      runsOn = 'ubuntu-latest';
+      break;
+    default:
+      core.setOutput('errorMessage', ERROR_MESSAGES.unsupportedOs(os));
+      core.setFailed(`Unsupported OS: ${os}`);
+  }
+
+  if (!SUPPORTED_PACKAGE_MANAGERS.includes(packageManager)) {
+    core.setOutput(
+      'errorMessage',
+      ERROR_MESSAGES.unsupportedPackageManager(packageManager)
+    );
+    core.setFailed(`Unsupported package manager: ${packageManager}`);
+  }
+
+  if (!semver.valid(nodeVersion)) {
+    core.setOutput(
+      'errorMessage',
+      ERROR_MESSAGES.invalidNodeVersion(nodeVersion)
+    );
+    core.setFailed('Invalid Node version');
+  }
+  if (semver.lt(nodeVersion, LAST_SUPPORTED_NODE_VERSION)) {
+    core.setOutput(
+      'errorMessage',
+      ERROR_MESSAGES.unsupportedNodeVersion(nodeVersion)
+    );
+    core.setFailed(`Unsupported node version: ${nodeVersion}`);
+  }
+
+  if (!semver.valid(puppeteerVersion)) {
+    core.setOutput(
+      'errorMessage',
+      ERROR_MESSAGES.invalidPuppeteerVersion(puppeteerVersion)
+    );
+    core.setFailed(`Invalid puppeteer version: ${puppeteerVersion}`);
+  }
+  if (
+    !LAST_PUPPETEER_VERSION ||
+    semver.lt(puppeteerVersion, LAST_PUPPETEER_VERSION)
+  ) {
+    core.setOutput(
+      'errorMessage',
+      ERROR_MESSAGES.unsupportedPuppeteerVersion(puppeteerVersion)
+    );
+    core.setFailed(`Unsupported puppeteer version: ${puppeteerVersion}`);
+  }
+
+  if (!semver.valid(packageManagerVersion)) {
+    core.setOutput(
+      'errorMessage',
+      ERROR_MESSAGES.invalidPackageManagerVersion(packageManagerVersion)
+    );
+    core.setFailed(`Invalid package manager version: ${packageManagerVersion}`);
+  }
+
+  core.setOutput('errorMessage', '');
+  core.setOutput('runsOn', runsOn);
+  core.setOutput('nodeVersion', nodeVersion);
+  core.setOutput('packageManager', packageManager);
+
+  await mkdir('out');
+  Promise.all([
+    writeFile(join('out', 'main.ts'), mvce.split('\n').slice(1, -1).join('\n')),
+    writeFile(join('out', 'puppeteer-error.txt'), error),
+    writeFile(
+      join('out', 'puppeteer.config.js'),
+      configuration.split('\n').slice(1, -1).join('\n')
+    ),
+    writeFile(join('out', 'puppeteer-behavior.json'), JSON.stringify(behavior)),
+    writeFile(
+      join('out', 'package.json'),
+      JSON.stringify({
+        packageManager: `${packageManager}@${packageManagerVersion}`,
+        scripts: {
+          start: 'tsx main.ts',
+          verify: 'tsx verify_issue.ts',
+        },
+        dependencies: {
+          puppeteer: puppeteerVersion,
+        },
+        devDependencies: {
+          tsx: 'latest',
+        },
+      })
+    ),
+    copyFile(
+      join(
+        dirname(fileURLToPath(import.meta.url)),
+        'assets',
+        'verify_issue.ts'
+      ),
+      join('out', 'verify_issue.ts')
+    ),
+  ]);
+})();
diff --git a/remote/test/puppeteer/tools/assets/verify_issue.ts b/remote/test/puppeteer/tools/assets/verify_issue.ts
new file mode 100755
index 0000000000..5814eff66c
--- /dev/null
+++ b/remote/test/puppeteer/tools/assets/verify_issue.ts
@@ -0,0 +1,68 @@
+import {spawnSync} from 'child_process';
+import {readFile, writeFile} from 'fs/promises';
+
+(async () => {
+  const error = await readFile('puppeteer-error.txt', 'utf-8');
+  const behavior = JSON.parse(
+    await readFile('puppeteer-behavior.json', 'utf-8')
+  ) as {flaky?: boolean; noError?: boolean};
+
+  let maxRepetitions = 1;
+  if (behavior.flaky) {
+    maxRepetitions = 100;
+  }
+
+  let status: number | null = null;
+  let stderr = '';
+  let stdout = '';
+
+  const preHook = async () => {
+    console.log('Writing output and error logs...');
+    await Promise.all([
+      writeFile('output.log', stdout),
+      writeFile('error.log', stderr),
+    ]);
+  };
+
+  let checkStatusWithError: () => Promise<void>;
+  if (behavior.noError) {
+    checkStatusWithError = async () => {
+      if (status === 0) {
+        await preHook();
+        console.log('Script ran successfully; no error found.');
+        process.exit(0);
+      }
+    };
+  } else {
+    checkStatusWithError = async () => {
+      if (status !== 0) {
+        await preHook();
+        if (stderr.toLowerCase().includes(error.toLowerCase())) {
+          console.log('Script failed; error found.');
+          process.exit(0);
+        }
+        console.error('Script failed; unknown error found.');
+        process.exit(1);
+      }
+    };
+  }
+
+  for (let i = 0; i < maxRepetitions; ++i) {
+    const result = spawnSync('npm', ['start'], {
+      shell: true,
+      encoding: 'utf-8',
+    });
+    status = result.status;
+    stdout = result.stdout ?? '';
+    stderr = result.stderr ?? '';
+    await checkStatusWithError();
+  }
+
+  await preHook();
+  if (behavior.noError) {
+    console.error('Script failed; unknown error found.');
+  } else {
+    console.error('Script ran successfully; no error found.');
+  }
+  process.exit(1);
+})();
diff --git a/remote/test/puppeteer/tools/chmod.ts b/remote/test/puppeteer/tools/chmod.ts
new file mode 100644
index 0000000000..89afe0f9e7
--- /dev/null
+++ b/remote/test/puppeteer/tools/chmod.ts
@@ -0,0 +1,27 @@
+/**
+ * Copyright 2023 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import fs from 'fs';
+
+/**
+ * Calls chmod with the mode in argv[2] on paths in argv[3...length-1].
+ */
+
+const mode = process.argv[2];
+
+for (let i = 3; i < process.argv.length; i++) {
+  fs.chmodSync(process.argv[i], mode);
+}
diff --git a/remote/test/puppeteer/tools/cp.ts b/remote/test/puppeteer/tools/cp.ts
new file mode 100644
index 0000000000..438c6ccd54
--- /dev/null
+++ b/remote/test/puppeteer/tools/cp.ts
@@ -0,0 +1,22 @@
+/**
+ * Copyright 2023 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import fs from 'fs';
+
+/**
+ * Copies single file in argv[2] to argv[3]
+ */
+fs.cpSync(process.argv[2], process.argv[3]);
diff --git a/remote/test/puppeteer/tools/ensure-pinned-deps.ts b/remote/test/puppeteer/tools/ensure-pinned-deps.ts
new file mode 100644
index 0000000000..82f53df796
--- /dev/null
+++ b/remote/test/puppeteer/tools/ensure-pinned-deps.ts
@@ -0,0 +1,59 @@
+/**
+ * Copyright 2021 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {readdirSync, readFileSync} from 'fs';
+import {join} from 'path';
+
+import {devDependencies} from '../package.json';
+
+const LOCAL_PACKAGE_NAMES: string[] = [];
+
+const packagesDir = join(__dirname, '..', 'packages');
+for (const packageName of readdirSync(packagesDir)) {
+  const {name} = JSON.parse(
+    readFileSync(join(packagesDir, packageName, 'package.json'), 'utf8')
+  );
+  LOCAL_PACKAGE_NAMES.push(name);
+}
+
+const allDeps = {...devDependencies};
+
+const invalidDeps = new Map<string, string>();
+
+for (const [depKey, depValue] of Object.entries(allDeps)) {
+  if (LOCAL_PACKAGE_NAMES.includes(depKey)) {
+    continue;
+  }
+  if (/[0-9]/.test(depValue[0]!)) {
+    continue;
+  }
+
+  invalidDeps.set(depKey, depValue);
+}
+
+if (invalidDeps.size > 0) {
+  console.error('Found non-pinned dependencies in package.json:');
+  console.log(
+    [...invalidDeps.keys()]
+      .map(k => {
+        return `  ${k}`;
+      })
+      .join('\n')
+  );
+  process.exit(1);
+}
+
+process.exit(0);
diff --git a/remote/test/puppeteer/tools/generate-matrix.js b/remote/test/puppeteer/tools/generate-matrix.js
new file mode 100644
index 0000000000..1cb65d3491
--- /dev/null
+++ b/remote/test/puppeteer/tools/generate-matrix.js
@@ -0,0 +1,43 @@
+const fs = require('fs');
+
+const data = JSON.parse(fs.readFileSync('./test/TestSuites.json', 'utf-8'));
+
+/**
+ * @param {string} platform
+ * @returns {string}
+ */
+function mapPlatform(platform) {
+  switch (platform) {
+    case 'linux':
+      return 'ubuntu-latest';
+    case 'win32':
+      return 'windows-latest';
+    case 'darwin':
+      return 'macos-latest';
+    default:
+      throw new Error('Unsupported platform');
+  }
+}
+
+const result = [];
+for (const suite of data.testSuites) {
+  for (const platform of suite.platforms) {
+    if (platform === 'linux' && suite.id !== 'firefox-bidi') {
+      for (const node of [14, 16, 18]) {
+        result.push(`- name: ${suite.id}
+  machine: ${mapPlatform(platform)}
+  xvfb: true
+  node: ${node}
+  suite: ${suite.id}`);
+      }
+    } else {
+      result.push(`- name: ${suite.id}
+  machine: ${mapPlatform(platform)}
+  xvfb: ${platform === 'linux'}
+  node: 18
+  suite: ${suite.id}`);
+    }
+  }
+}
+
+console.log(result.join('\n'));
diff --git a/remote/test/puppeteer/tools/generate_docs.ts b/remote/test/puppeteer/tools/generate_docs.ts
new file mode 100644
index 0000000000..86bc92f5f8
--- /dev/null
+++ b/remote/test/puppeteer/tools/generate_docs.ts
@@ -0,0 +1,152 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {copyFile, readFile, rm, writeFile} from 'fs/promises';
+import {join, resolve} from 'path';
+import {chdir} from 'process';
+
+import semver from 'semver';
+
+import {generateDocs} from './internal/custom_markdown_action.js';
+import {job} from './internal/job.js';
+import {spawnAndLog} from './internal/util.js';
+
+chdir(resolve(join(__dirname, '..')));
+
+function getOffsetAndLimit(
+  sectionName: string,
+  lines: string[]
+): [offset: number, limit: number] {
+  const offset =
+    lines.findIndex(line => {
+      return line.includes(`<!-- ${sectionName}-start -->`);
+    }) + 1;
+  const limit = lines.slice(offset).findIndex(line => {
+    return line.includes(`<!-- ${sectionName}-end -->`);
+  });
+  return [offset, limit];
+}
+
+function spliceIntoSection(
+  sectionName: string,
+  content: string,
+  sectionContent: string
+): string {
+  const lines = content.split('\n');
+  const [offset, limit] = getOffsetAndLimit(sectionName, lines);
+  lines.splice(offset, limit, ...sectionContent.split('\n'));
+  return lines.join('\n');
+}
+
+(async () => {
+  const job1 = job('', async ({inputs, outputs}) => {
+    await copyFile(inputs[0]!, outputs[0]!);
+  })
+    .inputs(['README.md'])
+    .outputs(['docs/index.md'])
+    .build();
+
+  // Chrome Versions
+  const job2 = job('', async ({inputs, outputs}) => {
+    let content = await readFile(inputs[2]!, {encoding: 'utf8'});
+    const versionModulePath = join('..', inputs[0]!);
+    const {versionsPerRelease} = await import(versionModulePath);
+    const versionsArchived = JSON.parse(await readFile(inputs[1]!, 'utf8'));
+
+    // Generate versions
+    const buffer: string[] = [];
+    for (const [chromiumVersion, puppeteerVersion] of versionsPerRelease) {
+      if (puppeteerVersion === 'NEXT') {
+        continue;
+      }
+      if (versionsArchived.includes(puppeteerVersion.substring(1))) {
+        if (semver.gte(puppeteerVersion, '20.0.0')) {
+          buffer.push(
+            `  * [Chrome for Testing](https://goo.gle/chrome-for-testing) ${chromiumVersion} - [Puppeteer ${puppeteerVersion}](https://pptr.dev/${puppeteerVersion.slice(
+              1
+            )})`
+          );
+        } else {
+          buffer.push(
+            `  * Chromium ${chromiumVersion} - [Puppeteer ${puppeteerVersion}](https://github.com/puppeteer/puppeteer/blob/${puppeteerVersion}/docs/api/index.md)`
+          );
+        }
+      } else if (semver.lt(puppeteerVersion, '15.0.0')) {
+        buffer.push(
+          `  * Chromium ${chromiumVersion} - [Puppeteer ${puppeteerVersion}](https://github.com/puppeteer/puppeteer/blob/${puppeteerVersion}/docs/api.md)`
+        );
+      } else if (semver.gte(puppeteerVersion, '15.3.0')) {
+        buffer.push(
+          `  * Chromium ${chromiumVersion} - [Puppeteer ${puppeteerVersion}](https://pptr.dev/${puppeteerVersion.slice(
+            1
+          )})`
+        );
+      } else {
+        buffer.push(
+          `  * Chromium ${chromiumVersion} - Puppeteer ${puppeteerVersion}`
+        );
+      }
+    }
+    content = spliceIntoSection('version', content, buffer.join('\n'));
+
+    await writeFile(outputs[0]!, content);
+  })
+    .inputs([
+      'versions.js',
+      'website/versionsArchived.json',
+      'docs/chromium-support.md',
+    ])
+    .outputs(['docs/chromium-support.md'])
+    .build();
+
+  await Promise.all([job1, job2]);
+
+  // Generate documentation
+  const puppeteerDocs = job('', async ({inputs, outputs}) => {
+    await rm(outputs[0]!, {recursive: true, force: true});
+    generateDocs(inputs[0]!, outputs[0]!);
+    spawnAndLog('prettier', '--ignore-path', 'none', '--write', 'docs');
+  })
+    .inputs([
+      'docs/puppeteer.api.json',
+      'tools/internal/custom_markdown_documenter.ts',
+    ])
+    .outputs(['docs/api'])
+    .build();
+
+  const browsersDocs = job('', async ({inputs, outputs}) => {
+    await rm(outputs[0]!, {recursive: true, force: true});
+    generateDocs(inputs[0]!, outputs[0]!);
+    spawnAndLog('prettier', '--ignore-path', 'none', '--write', 'docs');
+  })
+    .inputs([
+      'docs/browsers.api.json',
+      'tools/internal/custom_markdown_documenter.ts',
+    ])
+    .outputs(['docs/browsers-api'])
+    .build();
+
+  await Promise.all([puppeteerDocs, browsersDocs]);
+
+  await job('', async ({inputs, outputs}) => {
+    const readme = await readFile(inputs[1]!, 'utf-8');
+    const index = await readFile(inputs[0]!, 'utf-8');
+    await writeFile(outputs[0]!, index.replace('# API Reference\n', readme));
+  })
+    .inputs(['docs/browsers-api/index.md', 'packages/browsers/README.md'])
+    .outputs(['docs/browsers-api/index.md'])
+    .build();
+})();
diff --git a/remote/test/puppeteer/tools/generate_module_package_json.ts b/remote/test/puppeteer/tools/generate_module_package_json.ts
new file mode 100644
index 0000000000..75737463d5
--- /dev/null
+++ b/remote/test/puppeteer/tools/generate_module_package_json.ts
@@ -0,0 +1,26 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {mkdirSync, writeFileSync} from 'fs';
+import {dirname} from 'path';
+
+/**
+ * Outputs the dummy package.json file to the path specified
+ * by the first argument.
+ */
+
+mkdirSync(dirname(process.argv[2]), {recursive: true});
+writeFileSync(process.argv[2], `{"type": "module"}`);
diff --git a/remote/test/puppeteer/tools/get_deprecated_version_range.js b/remote/test/puppeteer/tools/get_deprecated_version_range.js
new file mode 100644
index 0000000000..c817df61bf
--- /dev/null
+++ b/remote/test/puppeteer/tools/get_deprecated_version_range.js
@@ -0,0 +1,27 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const {
+  versionsPerRelease,
+  lastMaintainedChromiumVersion,
+} = require('../versions.js');
+const version = versionsPerRelease.get(lastMaintainedChromiumVersion);
+if (version.toLowerCase() === 'next') {
+  console.error('Unexpected NEXT Puppeteer version in versions.js');
+  process.exit(1);
+}
+console.log(`< ${version.substring(1)}`);
+process.exit(0);
diff --git a/remote/test/puppeteer/tools/internal/custom_markdown_action.ts b/remote/test/puppeteer/tools/internal/custom_markdown_action.ts
new file mode 100644
index 0000000000..d8b3228736
--- /dev/null
+++ b/remote/test/puppeteer/tools/internal/custom_markdown_action.ts
@@ -0,0 +1,31 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {ApiModel} from '@microsoft/api-extractor-model';
+
+import {MarkdownDocumenter} from './custom_markdown_documenter.js';
+
+export const generateDocs = (jsonPath: string, outputDir: string): void => {
+  const apiModel = new ApiModel();
+  apiModel.loadPackage(jsonPath);
+
+  const markdownDocumenter: MarkdownDocumenter = new MarkdownDocumenter({
+    apiModel: apiModel,
+    documenterConfig: undefined,
+    outputFolder: outputDir,
+  });
+  markdownDocumenter.generateFiles();
+};
diff --git a/remote/test/puppeteer/tools/internal/custom_markdown_documenter.ts b/remote/test/puppeteer/tools/internal/custom_markdown_documenter.ts
new file mode 100644
index 0000000000..366dde1d55
--- /dev/null
+++ b/remote/test/puppeteer/tools/internal/custom_markdown_documenter.ts
@@ -0,0 +1,1481 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Copyright (c) Microsoft Corporation. All rights reserved. Licensed under the
+// MIT license. See LICENSE in the project root for license information.
+
+// Taken from
+// https://github.com/microsoft/rushstack/blob/main/apps/api-documenter/src/documenters/MarkdownDocumenter.ts
+// This file has been edited to morph into Docusaurus's expected inputs.
+
+import * as path from 'path';
+
+import {DocumenterConfig} from '@microsoft/api-documenter/lib/documenters/DocumenterConfig';
+import {CustomMarkdownEmitter} from '@microsoft/api-documenter/lib/markdown/CustomMarkdownEmitter';
+import {CustomDocNodes} from '@microsoft/api-documenter/lib/nodes/CustomDocNodeKind';
+import {DocEmphasisSpan} from '@microsoft/api-documenter/lib/nodes/DocEmphasisSpan';
+import {DocHeading} from '@microsoft/api-documenter/lib/nodes/DocHeading';
+import {DocNoteBox} from '@microsoft/api-documenter/lib/nodes/DocNoteBox';
+import {DocTable} from '@microsoft/api-documenter/lib/nodes/DocTable';
+import {DocTableCell} from '@microsoft/api-documenter/lib/nodes/DocTableCell';
+import {DocTableRow} from '@microsoft/api-documenter/lib/nodes/DocTableRow';
+import {MarkdownDocumenterAccessor} from '@microsoft/api-documenter/lib/plugin/MarkdownDocumenterAccessor';
+import {
+  IMarkdownDocumenterFeatureOnBeforeWritePageArgs,
+  MarkdownDocumenterFeatureContext,
+} from '@microsoft/api-documenter/lib/plugin/MarkdownDocumenterFeature';
+import {PluginLoader} from '@microsoft/api-documenter/lib/plugin/PluginLoader';
+import {Utilities} from '@microsoft/api-documenter/lib/utils/Utilities';
+import {
+  ApiClass,
+  ApiDeclaredItem,
+  ApiDocumentedItem,
+  ApiEnum,
+  ApiInitializerMixin,
+  ApiInterface,
+  ApiItem,
+  ApiItemKind,
+  ApiModel,
+  ApiNamespace,
+  ApiOptionalMixin,
+  ApiPackage,
+  ApiParameterListMixin,
+  ApiPropertyItem,
+  ApiProtectedMixin,
+  ApiReadonlyMixin,
+  ApiReleaseTagMixin,
+  ApiReturnTypeMixin,
+  ApiStaticMixin,
+  ApiTypeAlias,
+  Excerpt,
+  ExcerptToken,
+  ExcerptTokenKind,
+  IResolveDeclarationReferenceResult,
+  ReleaseTag,
+} from '@microsoft/api-extractor-model';
+import {
+  DocBlock,
+  DocCodeSpan,
+  DocComment,
+  DocFencedCode,
+  DocLinkTag,
+  DocNodeContainer,
+  DocNodeKind,
+  DocParagraph,
+  DocPlainText,
+  DocSection,
+  StandardTags,
+  StringBuilder,
+  TSDocConfiguration,
+} from '@microsoft/tsdoc';
+import {
+  FileSystem,
+  NewlineKind,
+  PackageName,
+} from '@rushstack/node-core-library';
+
+export interface IMarkdownDocumenterOptions {
+  apiModel: ApiModel;
+  documenterConfig: DocumenterConfig | undefined;
+  outputFolder: string;
+}
+
+/**
+ * Renders API documentation in the Markdown file format.
+ * For more info: https://en.wikipedia.org/wiki/Markdown
+ */
+export class MarkdownDocumenter {
+  private readonly _apiModel: ApiModel;
+  private readonly _documenterConfig: DocumenterConfig | undefined;
+  private readonly _tsdocConfiguration: TSDocConfiguration;
+  private readonly _markdownEmitter: CustomMarkdownEmitter;
+  private readonly _outputFolder: string;
+  private readonly _pluginLoader: PluginLoader;
+
+  public constructor(options: IMarkdownDocumenterOptions) {
+    this._apiModel = options.apiModel;
+    this._documenterConfig = options.documenterConfig;
+    this._outputFolder = options.outputFolder;
+    this._tsdocConfiguration = CustomDocNodes.configuration;
+    this._markdownEmitter = new CustomMarkdownEmitter(this._apiModel);
+
+    this._pluginLoader = new PluginLoader();
+  }
+
+  public generateFiles(): void {
+    if (this._documenterConfig) {
+      this._pluginLoader.load(this._documenterConfig, () => {
+        return new MarkdownDocumenterFeatureContext({
+          apiModel: this._apiModel,
+          outputFolder: this._outputFolder,
+          documenter: new MarkdownDocumenterAccessor({
+            getLinkForApiItem: (apiItem: ApiItem) => {
+              console.log(apiItem);
+              return this._getLinkFilenameForApiItem(apiItem);
+            },
+          }),
+        });
+      });
+    }
+
+    console.log();
+    this._deleteOldOutputFiles();
+
+    this._writeApiItemPage(this._apiModel.members[0]!);
+
+    if (this._pluginLoader.markdownDocumenterFeature) {
+      this._pluginLoader.markdownDocumenterFeature.onFinished({});
+    }
+  }
+
+  private _writeApiItemPage(apiItem: ApiItem): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+    const output: DocSection = new DocSection({
+      configuration: this._tsdocConfiguration,
+    });
+
+    const scopedName: string = apiItem.getScopedNameWithinPackage();
+
+    switch (apiItem.kind) {
+      case ApiItemKind.Class:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} class`})
+        );
+        break;
+      case ApiItemKind.Enum:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} enum`})
+        );
+        break;
+      case ApiItemKind.Interface:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} interface`})
+        );
+        break;
+      case ApiItemKind.Constructor:
+      case ApiItemKind.ConstructSignature:
+        output.appendNode(new DocHeading({configuration, title: scopedName}));
+        break;
+      case ApiItemKind.Method:
+      case ApiItemKind.MethodSignature:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} method`})
+        );
+        break;
+      case ApiItemKind.Function:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} function`})
+        );
+        break;
+      case ApiItemKind.Model:
+        output.appendNode(
+          new DocHeading({configuration, title: `API Reference`})
+        );
+        break;
+      case ApiItemKind.Namespace:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} namespace`})
+        );
+        break;
+      case ApiItemKind.Package:
+        console.log(`Writing ${apiItem.displayName} package`);
+        output.appendNode(
+          new DocHeading({
+            configuration,
+            title: `API Reference`,
+          })
+        );
+        break;
+      case ApiItemKind.Property:
+      case ApiItemKind.PropertySignature:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} property`})
+        );
+        break;
+      case ApiItemKind.TypeAlias:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} type`})
+        );
+        break;
+      case ApiItemKind.Variable:
+        output.appendNode(
+          new DocHeading({configuration, title: `${scopedName} variable`})
+        );
+        break;
+      default:
+        throw new Error('Unsupported API item kind: ' + apiItem.kind);
+    }
+
+    if (ApiReleaseTagMixin.isBaseClassOf(apiItem)) {
+      if (apiItem.releaseTag === ReleaseTag.Beta) {
+        this._writeBetaWarning(output);
+      }
+    }
+
+    const decoratorBlocks: DocBlock[] = [];
+
+    if (apiItem instanceof ApiDocumentedItem) {
+      const tsdocComment: DocComment | undefined = apiItem.tsdocComment;
+
+      if (tsdocComment) {
+        decoratorBlocks.push(
+          ...tsdocComment.customBlocks.filter(block => {
+            return (
+              block.blockTag.tagNameWithUpperCase ===
+              StandardTags.decorator.tagNameWithUpperCase
+            );
+          })
+        );
+
+        if (tsdocComment.deprecatedBlock) {
+          output.appendNode(
+            new DocNoteBox({configuration: this._tsdocConfiguration}, [
+              new DocParagraph({configuration: this._tsdocConfiguration}, [
+                new DocPlainText({
+                  configuration: this._tsdocConfiguration,
+                  text: 'Warning: This API is now obsolete. ',
+                }),
+              ]),
+              ...tsdocComment.deprecatedBlock.content.nodes,
+            ])
+          );
+        }
+
+        this._appendSection(output, tsdocComment.summarySection);
+      }
+    }
+
+    if (apiItem instanceof ApiDeclaredItem) {
+      if (apiItem.excerpt.text.length > 0) {
+        output.appendNode(
+          new DocHeading({configuration, title: 'Signature:', level: 4})
+        );
+
+        let code: string;
+        switch (apiItem.parent?.kind) {
+          case ApiItemKind.Class:
+            code = `class ${
+              apiItem.parent.displayName
+            } {${apiItem.getExcerptWithModifiers()}}`;
+            break;
+          case ApiItemKind.Interface:
+            code = `interface ${
+              apiItem.parent.displayName
+            } {${apiItem.getExcerptWithModifiers()}}`;
+            break;
+          default:
+            code = apiItem.getExcerptWithModifiers();
+        }
+        output.appendNode(
+          new DocFencedCode({
+            configuration,
+            code: code,
+            language: 'typescript',
+          })
+        );
+      }
+
+      this._writeHeritageTypes(output, apiItem);
+    }
+
+    if (decoratorBlocks.length > 0) {
+      output.appendNode(
+        new DocHeading({configuration, title: 'Decorators:', level: 4})
+      );
+      for (const decoratorBlock of decoratorBlocks) {
+        output.appendNodes(decoratorBlock.content.nodes);
+      }
+    }
+
+    let appendRemarks = true;
+    switch (apiItem.kind) {
+      case ApiItemKind.Class:
+      case ApiItemKind.Interface:
+      case ApiItemKind.Namespace:
+      case ApiItemKind.Package:
+        this._writeRemarksSection(output, apiItem);
+        appendRemarks = false;
+        break;
+    }
+
+    switch (apiItem.kind) {
+      case ApiItemKind.Class:
+        this._writeClassTables(output, apiItem as ApiClass);
+        break;
+      case ApiItemKind.Enum:
+        this._writeEnumTables(output, apiItem as ApiEnum);
+        break;
+      case ApiItemKind.Interface:
+        this._writeInterfaceTables(output, apiItem as ApiInterface);
+        break;
+      case ApiItemKind.Constructor:
+      case ApiItemKind.ConstructSignature:
+      case ApiItemKind.Method:
+      case ApiItemKind.MethodSignature:
+      case ApiItemKind.Function:
+        this._writeParameterTables(output, apiItem as ApiParameterListMixin);
+        this._writeThrowsSection(output, apiItem);
+        break;
+      case ApiItemKind.Namespace:
+        this._writePackageOrNamespaceTables(output, apiItem as ApiNamespace);
+        break;
+      case ApiItemKind.Model:
+        this._writeModelTable(output, apiItem as ApiModel);
+        break;
+      case ApiItemKind.Package:
+        this._writePackageOrNamespaceTables(output, apiItem as ApiPackage);
+        break;
+      case ApiItemKind.Property:
+      case ApiItemKind.PropertySignature:
+        break;
+      case ApiItemKind.TypeAlias:
+        break;
+      case ApiItemKind.Variable:
+        break;
+      default:
+        throw new Error('Unsupported API item kind: ' + apiItem.kind);
+    }
+
+    this._writeDefaultValueSection(output, apiItem);
+
+    if (appendRemarks) {
+      this._writeRemarksSection(output, apiItem);
+    }
+
+    const filename: string = path.join(
+      this._outputFolder,
+      this._getFilenameForApiItem(apiItem)
+    );
+    const stringBuilder: StringBuilder = new StringBuilder();
+
+    this._markdownEmitter.emit(stringBuilder, output, {
+      contextApiItem: apiItem,
+      onGetFilenameForApiItem: (apiItemForFilename: ApiItem) => {
+        return this._getLinkFilenameForApiItem(apiItemForFilename);
+      },
+    });
+
+    let pageContent: string = stringBuilder.toString();
+
+    if (this._pluginLoader.markdownDocumenterFeature) {
+      // Allow the plugin to customize the pageContent
+      const eventArgs: IMarkdownDocumenterFeatureOnBeforeWritePageArgs = {
+        apiItem: apiItem,
+        outputFilename: filename,
+        pageContent: pageContent,
+      };
+      this._pluginLoader.markdownDocumenterFeature.onBeforeWritePage(eventArgs);
+      pageContent = eventArgs.pageContent;
+    }
+
+    pageContent =
+      `---\nsidebar_label: ${this._getSidebarLabelForApiItem(apiItem)}\n---` +
+      pageContent;
+    pageContent = pageContent.replace('##', '#');
+    pageContent = pageContent.replace(/<!-- -->/g, '');
+    pageContent = pageContent.replace(/\\\*\\\*/g, '**');
+    pageContent = pageContent.replace(/<b>|<\/b>/g, '**');
+    FileSystem.writeFile(filename, pageContent, {
+      convertLineEndings: this._documenterConfig
+        ? this._documenterConfig.newlineKind
+        : NewlineKind.CrLf,
+    });
+  }
+
+  private _writeHeritageTypes(
+    output: DocSection,
+    apiItem: ApiDeclaredItem
+  ): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    if (apiItem instanceof ApiClass) {
+      if (apiItem.extendsType) {
+        const extendsParagraph: DocParagraph = new DocParagraph(
+          {configuration},
+          [
+            new DocEmphasisSpan({configuration, bold: true}, [
+              new DocPlainText({configuration, text: 'Extends: '}),
+            ]),
+          ]
+        );
+        this._appendExcerptWithHyperlinks(
+          extendsParagraph,
+          apiItem.extendsType.excerpt
+        );
+        output.appendNode(extendsParagraph);
+      }
+      if (apiItem.implementsTypes.length > 0) {
+        const extendsParagraph: DocParagraph = new DocParagraph(
+          {configuration},
+          [
+            new DocEmphasisSpan({configuration, bold: true}, [
+              new DocPlainText({configuration, text: 'Implements: '}),
+            ]),
+          ]
+        );
+        let needsComma = false;
+        for (const implementsType of apiItem.implementsTypes) {
+          if (needsComma) {
+            extendsParagraph.appendNode(
+              new DocPlainText({configuration, text: ', '})
+            );
+          }
+          this._appendExcerptWithHyperlinks(
+            extendsParagraph,
+            implementsType.excerpt
+          );
+          needsComma = true;
+        }
+        output.appendNode(extendsParagraph);
+      }
+    }
+
+    if (apiItem instanceof ApiInterface) {
+      if (apiItem.extendsTypes.length > 0) {
+        const extendsParagraph: DocParagraph = new DocParagraph(
+          {configuration},
+          [
+            new DocEmphasisSpan({configuration, bold: true}, [
+              new DocPlainText({configuration, text: 'Extends: '}),
+            ]),
+          ]
+        );
+        let needsComma = false;
+        for (const extendsType of apiItem.extendsTypes) {
+          if (needsComma) {
+            extendsParagraph.appendNode(
+              new DocPlainText({configuration, text: ', '})
+            );
+          }
+          this._appendExcerptWithHyperlinks(
+            extendsParagraph,
+            extendsType.excerpt
+          );
+          needsComma = true;
+        }
+        output.appendNode(extendsParagraph);
+      }
+    }
+
+    if (apiItem instanceof ApiTypeAlias) {
+      const refs: ExcerptToken[] = apiItem.excerptTokens.filter(token => {
+        return (
+          token.kind === ExcerptTokenKind.Reference &&
+          token.canonicalReference &&
+          this._apiModel.resolveDeclarationReference(
+            token.canonicalReference,
+            undefined
+          ).resolvedApiItem
+        );
+      });
+      if (refs.length > 0) {
+        const referencesParagraph: DocParagraph = new DocParagraph(
+          {configuration},
+          [
+            new DocEmphasisSpan({configuration, bold: true}, [
+              new DocPlainText({configuration, text: 'References: '}),
+            ]),
+          ]
+        );
+        let needsComma = false;
+        const visited: Set<string> = new Set();
+        for (const ref of refs) {
+          if (visited.has(ref.text)) {
+            continue;
+          }
+          visited.add(ref.text);
+
+          if (needsComma) {
+            referencesParagraph.appendNode(
+              new DocPlainText({configuration, text: ', '})
+            );
+          }
+
+          this._appendExcerptTokenWithHyperlinks(referencesParagraph, ref);
+          needsComma = true;
+        }
+        output.appendNode(referencesParagraph);
+      }
+    }
+  }
+
+  private _writeDefaultValueSection(output: DocSection, apiItem: ApiItem) {
+    if (apiItem instanceof ApiDocumentedItem) {
+      const block = apiItem.tsdocComment?.customBlocks.find(block => {
+        return (
+          block.blockTag.tagNameWithUpperCase ===
+          StandardTags.defaultValue.tagNameWithUpperCase
+        );
+      });
+      if (block) {
+        output.appendNode(
+          new DocHeading({
+            configuration: this._tsdocConfiguration,
+            title: 'Default value:',
+            level: 4,
+          })
+        );
+        this._appendSection(output, block.content);
+      }
+    }
+  }
+
+  private _writeRemarksSection(output: DocSection, apiItem: ApiItem): void {
+    if (apiItem instanceof ApiDocumentedItem) {
+      const tsdocComment: DocComment | undefined = apiItem.tsdocComment;
+
+      if (tsdocComment) {
+        // Write the @remarks block
+        if (tsdocComment.remarksBlock) {
+          output.appendNode(
+            new DocHeading({
+              configuration: this._tsdocConfiguration,
+              title: 'Remarks',
+            })
+          );
+          this._appendSection(output, tsdocComment.remarksBlock.content);
+        }
+
+        // Write the @example blocks
+        const exampleBlocks: DocBlock[] = tsdocComment.customBlocks.filter(
+          x => {
+            return (
+              x.blockTag.tagNameWithUpperCase ===
+              StandardTags.example.tagNameWithUpperCase
+            );
+          }
+        );
+
+        let exampleNumber = 1;
+        for (const exampleBlock of exampleBlocks) {
+          const heading: string =
+            exampleBlocks.length > 1 ? `Example ${exampleNumber}` : 'Example';
+
+          output.appendNode(
+            new DocHeading({
+              configuration: this._tsdocConfiguration,
+              title: heading,
+            })
+          );
+
+          this._appendSection(output, exampleBlock.content);
+
+          ++exampleNumber;
+        }
+      }
+    }
+  }
+
+  private _writeThrowsSection(output: DocSection, apiItem: ApiItem): void {
+    if (apiItem instanceof ApiDocumentedItem) {
+      const tsdocComment: DocComment | undefined = apiItem.tsdocComment;
+
+      if (tsdocComment) {
+        // Write the @throws blocks
+        const throwsBlocks: DocBlock[] = tsdocComment.customBlocks.filter(x => {
+          return (
+            x.blockTag.tagNameWithUpperCase ===
+            StandardTags.throws.tagNameWithUpperCase
+          );
+        });
+
+        if (throwsBlocks.length > 0) {
+          const heading = 'Exceptions';
+          output.appendNode(
+            new DocHeading({
+              configuration: this._tsdocConfiguration,
+              title: heading,
+            })
+          );
+
+          for (const throwsBlock of throwsBlocks) {
+            this._appendSection(output, throwsBlock.content);
+          }
+        }
+      }
+    }
+  }
+
+  /**
+   * GENERATE PAGE: MODEL
+   */
+  private _writeModelTable(output: DocSection, apiModel: ApiModel): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const packagesTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Package', 'Description'],
+    });
+
+    for (const apiMember of apiModel.members) {
+      const row: DocTableRow = new DocTableRow({configuration}, [
+        this._createTitleCell(apiMember),
+        this._createDescriptionCell(apiMember),
+      ]);
+
+      switch (apiMember.kind) {
+        case ApiItemKind.Package:
+          packagesTable.addRow(row);
+          this._writeApiItemPage(apiMember);
+          break;
+      }
+    }
+
+    if (packagesTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Packages',
+        })
+      );
+      output.appendNode(packagesTable);
+    }
+  }
+
+  /**
+   * GENERATE PAGE: PACKAGE or NAMESPACE
+   */
+  private _writePackageOrNamespaceTables(
+    output: DocSection,
+    apiContainer: ApiPackage | ApiNamespace
+  ): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const classesTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Class', 'Description'],
+    });
+
+    const enumerationsTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Enumeration', 'Description'],
+    });
+
+    const functionsTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Function', 'Description'],
+    });
+
+    const interfacesTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Interface', 'Description'],
+    });
+
+    const namespacesTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Namespace', 'Description'],
+    });
+
+    const variablesTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Variable', 'Description'],
+    });
+
+    const typeAliasesTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Type Alias', 'Description'],
+    });
+
+    const apiMembers: readonly ApiItem[] =
+      apiContainer.kind === ApiItemKind.Package
+        ? (apiContainer as ApiPackage).entryPoints[0]!.members
+        : (apiContainer as ApiNamespace).members;
+
+    for (const apiMember of apiMembers) {
+      const row: DocTableRow = new DocTableRow({configuration}, [
+        this._createTitleCell(apiMember),
+        this._createDescriptionCell(apiMember),
+      ]);
+
+      switch (apiMember.kind) {
+        case ApiItemKind.Class:
+          classesTable.addRow(row);
+          this._writeApiItemPage(apiMember);
+          break;
+
+        case ApiItemKind.Enum:
+          enumerationsTable.addRow(row);
+          this._writeApiItemPage(apiMember);
+          break;
+
+        case ApiItemKind.Interface:
+          interfacesTable.addRow(row);
+          this._writeApiItemPage(apiMember);
+          break;
+
+        case ApiItemKind.Namespace:
+          namespacesTable.addRow(row);
+          this._writeApiItemPage(apiMember);
+          break;
+
+        case ApiItemKind.Function:
+          functionsTable.addRow(row);
+          this._writeApiItemPage(apiMember);
+          break;
+
+        case ApiItemKind.TypeAlias:
+          typeAliasesTable.addRow(row);
+          this._writeApiItemPage(apiMember);
+          break;
+
+        case ApiItemKind.Variable:
+          variablesTable.addRow(row);
+          this._writeApiItemPage(apiMember);
+          break;
+      }
+    }
+
+    if (classesTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Classes',
+        })
+      );
+      output.appendNode(classesTable);
+    }
+
+    if (enumerationsTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Enumerations',
+        })
+      );
+      output.appendNode(enumerationsTable);
+    }
+    if (functionsTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Functions',
+        })
+      );
+      output.appendNode(functionsTable);
+    }
+
+    if (interfacesTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Interfaces',
+        })
+      );
+      output.appendNode(interfacesTable);
+    }
+
+    if (namespacesTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Namespaces',
+        })
+      );
+      output.appendNode(namespacesTable);
+    }
+
+    if (variablesTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Variables',
+        })
+      );
+      output.appendNode(variablesTable);
+    }
+
+    if (typeAliasesTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Type Aliases',
+        })
+      );
+      output.appendNode(typeAliasesTable);
+    }
+  }
+
+  /**
+   * GENERATE PAGE: CLASS
+   */
+  private _writeClassTables(output: DocSection, apiClass: ApiClass): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const eventsTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Property', 'Modifiers', 'Type', 'Description'],
+    });
+
+    const constructorsTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Constructor', 'Modifiers', 'Description'],
+    });
+
+    const propertiesTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Property', 'Modifiers', 'Type', 'Description'],
+    });
+
+    const methodsTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Method', 'Modifiers', 'Description'],
+    });
+
+    for (const apiMember of apiClass.members) {
+      switch (apiMember.kind) {
+        case ApiItemKind.Constructor: {
+          constructorsTable.addRow(
+            new DocTableRow({configuration}, [
+              this._createTitleCell(apiMember),
+              this._createModifiersCell(apiMember),
+              this._createDescriptionCell(apiMember),
+            ])
+          );
+
+          this._writeApiItemPage(apiMember);
+          break;
+        }
+        case ApiItemKind.Method: {
+          methodsTable.addRow(
+            new DocTableRow({configuration}, [
+              this._createTitleCell(apiMember),
+              this._createModifiersCell(apiMember),
+              this._createDescriptionCell(apiMember),
+            ])
+          );
+
+          this._writeApiItemPage(apiMember);
+          break;
+        }
+        case ApiItemKind.Property: {
+          if ((apiMember as ApiPropertyItem).isEventProperty) {
+            eventsTable.addRow(
+              new DocTableRow({configuration}, [
+                this._createTitleCell(apiMember, true),
+                this._createModifiersCell(apiMember),
+                this._createPropertyTypeCell(apiMember),
+                this._createDescriptionCell(apiMember),
+              ])
+            );
+          } else {
+            propertiesTable.addRow(
+              new DocTableRow({configuration}, [
+                this._createTitleCell(apiMember, true),
+                this._createModifiersCell(apiMember),
+                this._createPropertyTypeCell(apiMember),
+                this._createDescriptionCell(apiMember),
+              ])
+            );
+          }
+          break;
+        }
+      }
+    }
+
+    if (eventsTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Events',
+        })
+      );
+      output.appendNode(eventsTable);
+    }
+
+    if (constructorsTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Constructors',
+        })
+      );
+      output.appendNode(constructorsTable);
+    }
+
+    if (propertiesTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Properties',
+        })
+      );
+      output.appendNode(propertiesTable);
+    }
+
+    if (methodsTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Methods',
+        })
+      );
+      output.appendNode(methodsTable);
+    }
+  }
+
+  /**
+   * GENERATE PAGE: ENUM
+   */
+  private _writeEnumTables(output: DocSection, apiEnum: ApiEnum): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const enumMembersTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Member', 'Value', 'Description'],
+    });
+
+    for (const apiEnumMember of apiEnum.members) {
+      enumMembersTable.addRow(
+        new DocTableRow({configuration}, [
+          new DocTableCell({configuration}, [
+            new DocParagraph({configuration}, [
+              new DocPlainText({
+                configuration,
+                text: Utilities.getConciseSignature(apiEnumMember),
+              }),
+            ]),
+          ]),
+          this._createInitializerCell(apiEnumMember),
+          this._createDescriptionCell(apiEnumMember),
+        ])
+      );
+    }
+
+    if (enumMembersTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Enumeration Members',
+        })
+      );
+      output.appendNode(enumMembersTable);
+    }
+  }
+
+  /**
+   * GENERATE PAGE: INTERFACE
+   */
+  private _writeInterfaceTables(
+    output: DocSection,
+    apiClass: ApiInterface
+  ): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const eventsTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Property', 'Modifiers', 'Type', 'Description'],
+    });
+
+    const propertiesTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Property', 'Modifiers', 'Type', 'Description', 'Default'],
+    });
+
+    const methodsTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Method', 'Description'],
+    });
+
+    for (const apiMember of apiClass.members) {
+      switch (apiMember.kind) {
+        case ApiItemKind.ConstructSignature:
+        case ApiItemKind.MethodSignature: {
+          methodsTable.addRow(
+            new DocTableRow({configuration}, [
+              this._createTitleCell(apiMember),
+              this._createDescriptionCell(apiMember),
+            ])
+          );
+
+          this._writeApiItemPage(apiMember);
+          break;
+        }
+        case ApiItemKind.PropertySignature: {
+          if ((apiMember as ApiPropertyItem).isEventProperty) {
+            eventsTable.addRow(
+              new DocTableRow({configuration}, [
+                this._createTitleCell(apiMember, true),
+                this._createModifiersCell(apiMember),
+                this._createPropertyTypeCell(apiMember),
+                this._createDescriptionCell(apiMember),
+              ])
+            );
+          } else {
+            propertiesTable.addRow(
+              new DocTableRow({configuration}, [
+                this._createTitleCell(apiMember, true),
+                this._createModifiersCell(apiMember),
+                this._createPropertyTypeCell(apiMember),
+                this._createDescriptionCell(apiMember),
+                this._createDefaultCell(apiMember),
+              ])
+            );
+          }
+          break;
+        }
+      }
+    }
+
+    if (eventsTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Events',
+        })
+      );
+      output.appendNode(eventsTable);
+    }
+
+    if (propertiesTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Properties',
+        })
+      );
+      output.appendNode(propertiesTable);
+    }
+
+    if (methodsTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Methods',
+        })
+      );
+      output.appendNode(methodsTable);
+    }
+  }
+
+  /**
+   * GENERATE PAGE: FUNCTION-LIKE
+   */
+  private _writeParameterTables(
+    output: DocSection,
+    apiParameterListMixin: ApiParameterListMixin
+  ): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const parametersTable: DocTable = new DocTable({
+      configuration,
+      headerTitles: ['Parameter', 'Type', 'Description'],
+    });
+    for (const apiParameter of apiParameterListMixin.parameters) {
+      const parameterDescription: DocSection = new DocSection({configuration});
+
+      if (apiParameter.isOptional) {
+        parameterDescription.appendNodesInParagraph([
+          new DocEmphasisSpan({configuration, italic: true}, [
+            new DocPlainText({configuration, text: '(Optional)'}),
+          ]),
+          new DocPlainText({configuration, text: ' '}),
+        ]);
+      }
+
+      if (apiParameter.tsdocParamBlock) {
+        this._appendAndMergeSection(
+          parameterDescription,
+          apiParameter.tsdocParamBlock.content
+        );
+      }
+
+      parametersTable.addRow(
+        new DocTableRow({configuration}, [
+          new DocTableCell({configuration}, [
+            new DocParagraph({configuration}, [
+              new DocPlainText({configuration, text: apiParameter.name}),
+            ]),
+          ]),
+          new DocTableCell({configuration}, [
+            this._createParagraphForTypeExcerpt(
+              apiParameter.parameterTypeExcerpt
+            ),
+          ]),
+          new DocTableCell({configuration}, parameterDescription.nodes),
+        ])
+      );
+    }
+
+    if (parametersTable.rows.length > 0) {
+      output.appendNode(
+        new DocHeading({
+          configuration: this._tsdocConfiguration,
+          title: 'Parameters',
+        })
+      );
+      output.appendNode(parametersTable);
+    }
+
+    if (ApiReturnTypeMixin.isBaseClassOf(apiParameterListMixin)) {
+      const returnTypeExcerpt: Excerpt =
+        apiParameterListMixin.returnTypeExcerpt;
+      output.appendNode(
+        new DocParagraph({configuration}, [
+          new DocEmphasisSpan({configuration, bold: true}, [
+            new DocPlainText({configuration, text: 'Returns:'}),
+          ]),
+        ])
+      );
+
+      output.appendNode(this._createParagraphForTypeExcerpt(returnTypeExcerpt));
+
+      if (apiParameterListMixin instanceof ApiDocumentedItem) {
+        if (
+          apiParameterListMixin.tsdocComment &&
+          apiParameterListMixin.tsdocComment.returnsBlock
+        ) {
+          this._appendSection(
+            output,
+            apiParameterListMixin.tsdocComment.returnsBlock.content
+          );
+        }
+      }
+    }
+  }
+
+  private _createParagraphForTypeExcerpt(excerpt: Excerpt): DocParagraph {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const paragraph: DocParagraph = new DocParagraph({configuration});
+    if (!excerpt.text.trim()) {
+      paragraph.appendNode(
+        new DocPlainText({configuration, text: '(not declared)'})
+      );
+    } else {
+      this._appendExcerptWithHyperlinks(paragraph, excerpt);
+    }
+
+    return paragraph;
+  }
+
+  private _appendExcerptWithHyperlinks(
+    docNodeContainer: DocNodeContainer,
+    excerpt: Excerpt
+  ): void {
+    for (const token of excerpt.spannedTokens) {
+      this._appendExcerptTokenWithHyperlinks(docNodeContainer, token);
+    }
+  }
+
+  private _appendExcerptTokenWithHyperlinks(
+    docNodeContainer: DocNodeContainer,
+    token: ExcerptToken
+  ): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    // Markdown doesn't provide a standardized syntax for hyperlinks inside code
+    // spans, so we will render the type expression as DocPlainText.  Instead of
+    // creating multiple DocParagraphs, we can simply discard any newlines and
+    // let the renderer do normal word-wrapping.
+    const unwrappedTokenText: string = token.text.replace(/[\r\n]+/g, ' ');
+
+    // If it's hyperlinkable, then append a DocLinkTag
+    if (token.kind === ExcerptTokenKind.Reference && token.canonicalReference) {
+      const apiItemResult: IResolveDeclarationReferenceResult =
+        this._apiModel.resolveDeclarationReference(
+          token.canonicalReference,
+          undefined
+        );
+
+      if (apiItemResult.resolvedApiItem) {
+        docNodeContainer.appendNode(
+          new DocLinkTag({
+            configuration,
+            tagName: StandardTags.link.tagName,
+            linkText: unwrappedTokenText,
+            urlDestination: this._getLinkFilenameForApiItem(
+              apiItemResult.resolvedApiItem
+            ),
+          })
+        );
+        return;
+      }
+    }
+
+    // Otherwise append non-hyperlinked text
+    docNodeContainer.appendNode(
+      new DocPlainText({configuration, text: unwrappedTokenText})
+    );
+  }
+
+  private _createTitleCell(apiItem: ApiItem, plain = false): DocTableCell {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const text: string = Utilities.getConciseSignature(apiItem);
+
+    return new DocTableCell({configuration}, [
+      new DocParagraph({configuration}, [
+        plain
+          ? new DocPlainText({configuration, text})
+          : new DocLinkTag({
+              configuration,
+              tagName: '@link',
+              linkText: text,
+              urlDestination: this._getLinkFilenameForApiItem(apiItem),
+            }),
+      ]),
+    ]);
+  }
+
+  /**
+   * This generates a DocTableCell for an ApiItem including the summary section
+   * and "(BETA)" annotation.
+   *
+   * @remarks
+   * We mostly assume that the input is an ApiDocumentedItem, but it's easier to
+   * perform this as a runtime check than to have each caller perform a type
+   * cast.
+   */
+  private _createDescriptionCell(apiItem: ApiItem): DocTableCell {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const section: DocSection = new DocSection({configuration});
+
+    if (ApiReleaseTagMixin.isBaseClassOf(apiItem)) {
+      if (apiItem.releaseTag === ReleaseTag.Beta) {
+        section.appendNodesInParagraph([
+          new DocEmphasisSpan({configuration, bold: true, italic: true}, [
+            new DocPlainText({configuration, text: '(BETA)'}),
+          ]),
+          new DocPlainText({configuration, text: ' '}),
+        ]);
+      }
+    }
+
+    if (apiItem instanceof ApiDocumentedItem) {
+      if (apiItem.tsdocComment !== undefined) {
+        this._appendAndMergeSection(
+          section,
+          apiItem.tsdocComment.summarySection
+        );
+      }
+    }
+
+    return new DocTableCell({configuration}, section.nodes);
+  }
+
+  private _createDefaultCell(apiItem: ApiItem): DocTableCell {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    if (apiItem instanceof ApiDocumentedItem) {
+      const block = apiItem.tsdocComment?.customBlocks.find(block => {
+        return (
+          block.blockTag.tagNameWithUpperCase ===
+          StandardTags.defaultValue.tagNameWithUpperCase
+        );
+      });
+      if (block !== undefined) {
+        return new DocTableCell({configuration}, block.content.getChildNodes());
+      }
+    }
+
+    return new DocTableCell({configuration}, []);
+  }
+
+  private _createModifiersCell(apiItem: ApiItem): DocTableCell {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const section: DocSection = new DocSection({configuration});
+
+    if (ApiProtectedMixin.isBaseClassOf(apiItem)) {
+      if (apiItem.isProtected) {
+        section.appendNode(
+          new DocParagraph({configuration}, [
+            new DocCodeSpan({configuration, code: 'protected'}),
+          ])
+        );
+      }
+    }
+
+    if (ApiReadonlyMixin.isBaseClassOf(apiItem)) {
+      if (apiItem.isReadonly) {
+        section.appendNode(
+          new DocParagraph({configuration}, [
+            new DocCodeSpan({configuration, code: 'readonly'}),
+          ])
+        );
+      }
+    }
+
+    if (ApiStaticMixin.isBaseClassOf(apiItem)) {
+      if (apiItem.isStatic) {
+        section.appendNode(
+          new DocParagraph({configuration}, [
+            new DocCodeSpan({configuration, code: 'static'}),
+          ])
+        );
+      }
+    }
+
+    if (ApiOptionalMixin.isBaseClassOf(apiItem)) {
+      if (apiItem.isOptional) {
+        section.appendNode(
+          new DocParagraph({configuration}, [
+            new DocCodeSpan({configuration, code: 'optional'}),
+          ])
+        );
+      }
+    }
+
+    return new DocTableCell({configuration}, section.nodes);
+  }
+
+  private _createPropertyTypeCell(apiItem: ApiItem): DocTableCell {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const section: DocSection = new DocSection({configuration});
+
+    if (apiItem instanceof ApiPropertyItem) {
+      section.appendNode(
+        this._createParagraphForTypeExcerpt(apiItem.propertyTypeExcerpt)
+      );
+    }
+
+    return new DocTableCell({configuration}, section.nodes);
+  }
+
+  private _createInitializerCell(apiItem: ApiItem): DocTableCell {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+
+    const section: DocSection = new DocSection({configuration});
+
+    if (ApiInitializerMixin.isBaseClassOf(apiItem)) {
+      if (apiItem.initializerExcerpt) {
+        section.appendNodeInParagraph(
+          new DocCodeSpan({
+            configuration,
+            code: apiItem.initializerExcerpt.text,
+          })
+        );
+      }
+    }
+
+    return new DocTableCell({configuration}, section.nodes);
+  }
+
+  private _writeBetaWarning(output: DocSection): void {
+    const configuration: TSDocConfiguration = this._tsdocConfiguration;
+    const betaWarning: string =
+      'This API is provided as a preview for developers and may change' +
+      ' based on feedback that we receive.  Do not use this API in a production environment.';
+    output.appendNode(
+      new DocNoteBox({configuration}, [
+        new DocParagraph({configuration}, [
+          new DocPlainText({configuration, text: betaWarning}),
+        ]),
+      ])
+    );
+  }
+
+  private _appendSection(output: DocSection, docSection: DocSection): void {
+    for (const node of docSection.nodes) {
+      output.appendNode(node);
+    }
+  }
+
+  private _appendAndMergeSection(
+    output: DocSection,
+    docSection: DocSection
+  ): void {
+    let firstNode = true;
+    for (const node of docSection.nodes) {
+      if (firstNode) {
+        if (node.kind === DocNodeKind.Paragraph) {
+          output.appendNodesInParagraph(node.getChildNodes());
+          firstNode = false;
+          continue;
+        }
+      }
+      firstNode = false;
+
+      output.appendNode(node);
+    }
+  }
+
+  private _getSidebarLabelForApiItem(apiItem: ApiItem): string {
+    if (apiItem.kind === ApiItemKind.Package) {
+      return 'API';
+    }
+
+    let baseName = '';
+    for (const hierarchyItem of apiItem.getHierarchy()) {
+      // For overloaded methods, add a suffix such as "MyClass.myMethod_2".
+      let qualifiedName: string = hierarchyItem.displayName;
+      if (ApiParameterListMixin.isBaseClassOf(hierarchyItem)) {
+        if (hierarchyItem.overloadIndex > 1) {
+          // Subtract one for compatibility with earlier releases of API Documenter.
+          qualifiedName += `_${hierarchyItem.overloadIndex - 1}`;
+        }
+      }
+
+      switch (hierarchyItem.kind) {
+        case ApiItemKind.Model:
+        case ApiItemKind.EntryPoint:
+        case ApiItemKind.EnumMember:
+        case ApiItemKind.Package:
+          break;
+        default:
+          baseName += qualifiedName + '.';
+      }
+    }
+    return baseName.slice(0, baseName.length - 1);
+  }
+
+  private _getFilenameForApiItem(apiItem: ApiItem): string {
+    if (apiItem.kind === ApiItemKind.Package) {
+      return 'index.md';
+    }
+
+    let baseName = '';
+    for (const hierarchyItem of apiItem.getHierarchy()) {
+      // For overloaded methods, add a suffix such as "MyClass.myMethod_2".
+      let qualifiedName: string = Utilities.getSafeFilenameForName(
+        hierarchyItem.displayName
+      );
+      if (ApiParameterListMixin.isBaseClassOf(hierarchyItem)) {
+        if (hierarchyItem.overloadIndex > 1) {
+          // Subtract one for compatibility with earlier releases of API Documenter.
+          // (This will get revamped when we fix GitHub issue #1308)
+          qualifiedName += `_${hierarchyItem.overloadIndex - 1}`;
+        }
+      }
+
+      switch (hierarchyItem.kind) {
+        case ApiItemKind.Model:
+        case ApiItemKind.EntryPoint:
+        case ApiItemKind.EnumMember:
+          break;
+        case ApiItemKind.Package:
+          baseName = Utilities.getSafeFilenameForName(
+            PackageName.getUnscopedName(hierarchyItem.displayName)
+          );
+          break;
+        default:
+          baseName += '.' + qualifiedName;
+      }
+    }
+    return baseName + '.md';
+  }
+
+  private _getLinkFilenameForApiItem(apiItem: ApiItem): string {
+    return './' + this._getFilenameForApiItem(apiItem);
+  }
+
+  private _deleteOldOutputFiles(): void {
+    console.log('Deleting old output from ' + this._outputFolder);
+    FileSystem.ensureEmptyFolder(this._outputFolder);
+  }
+}
diff --git a/remote/test/puppeteer/tools/internal/job.ts b/remote/test/puppeteer/tools/internal/job.ts
new file mode 100644
index 0000000000..ef6ea10237
--- /dev/null
+++ b/remote/test/puppeteer/tools/internal/job.ts
@@ -0,0 +1,153 @@
+import {createHash} from 'crypto';
+import {existsSync, Stats} from 'fs';
+import {mkdir, readFile, stat, writeFile} from 'fs/promises';
+import {tmpdir} from 'os';
+import {dirname, join} from 'path';
+
+import glob from 'glob';
+
+interface JobContext {
+  name: string;
+  inputs: string[];
+  outputs: string[];
+}
+
+class JobBuilder {
+  #inputs: string[] = [];
+  #outputs: string[] = [];
+  #callback: (ctx: JobContext) => Promise<void>;
+  #name: string;
+  #value = '';
+  #force = false;
+
+  constructor(name: string, callback: (ctx: JobContext) => Promise<void>) {
+    this.#name = name;
+    this.#callback = callback;
+  }
+
+  get jobHash(): string {
+    return createHash('sha256').update(this.#name).digest('hex');
+  }
+
+  force() {
+    this.#force = true;
+    return this;
+  }
+
+  value(value: string) {
+    this.#value = value;
+    return this;
+  }
+
+  inputs(inputs: string[]): JobBuilder {
+    this.#inputs = inputs.flatMap(value => {
+      if (glob.hasMagic(value)) {
+        return glob.sync(value);
+      }
+      return value;
+    });
+    return this;
+  }
+
+  outputs(outputs: string[]): JobBuilder {
+    if (!this.#name) {
+      this.#name = outputs.join(' and ');
+    }
+
+    this.#outputs = outputs;
+    return this;
+  }
+
+  async build(): Promise<void> {
+    console.log(`Running job ${this.#name}...`);
+    // For debugging.
+    if (this.#force) {
+      return this.#run();
+    }
+    // In case we deleted an output file on purpose.
+    if (!this.getOutputStats()) {
+      return this.#run();
+    }
+    // Run if the job has a value, but it changes.
+    if (this.#value) {
+      if (!(await this.isValueDifferent())) {
+        return;
+      }
+      return this.#run();
+    }
+    // Always run when there is no output.
+    if (!this.#outputs.length) {
+      return this.#run();
+    }
+    // Make-like comparator.
+    if (!(await this.areInputsNewer())) {
+      return;
+    }
+    return this.#run();
+  }
+
+  async isValueDifferent(): Promise<boolean> {
+    const file = join(tmpdir(), `puppeteer/${this.jobHash}.txt`);
+    await mkdir(dirname(file), {recursive: true});
+    if (!existsSync(file)) {
+      await writeFile(file, this.#value);
+      return true;
+    }
+    return this.#value !== (await readFile(file, 'utf8'));
+  }
+
+  #outputStats?: Stats[];
+  async getOutputStats(): Promise<Stats[] | undefined> {
+    if (this.#outputStats) {
+      return this.#outputStats;
+    }
+    try {
+      this.#outputStats = await Promise.all(
+        this.#outputs.map(output => {
+          return stat(output);
+        })
+      );
+    } catch {}
+    return this.#outputStats;
+  }
+
+  async areInputsNewer(): Promise<boolean> {
+    const inputStats = await Promise.all(
+      this.#inputs.map(input => {
+        return stat(input);
+      })
+    );
+    const outputStats = await this.getOutputStats();
+    if (
+      outputStats &&
+      outputStats.reduce(reduceMinTime, Infinity) >
+        inputStats.reduce(reduceMaxTime, 0)
+    ) {
+      return false;
+    }
+    return true;
+  }
+
+  #run(): Promise<void> {
+    return this.#callback({
+      name: this.#name,
+      inputs: this.#inputs,
+      outputs: this.#outputs,
+    });
+  }
+}
+
+export const job = (
+  name: string,
+  callback: (ctx: JobContext) => Promise<void>
+): JobBuilder => {
+  return new JobBuilder(name, callback);
+};
+
+const reduceMaxTime = (time: number, stat: Stats) => {
+  return time < stat.mtimeMs ? stat.mtimeMs : time;
+};
+
+const reduceMinTime = (time: number, stat: Stats) => {
+  return time > stat.mtimeMs ? stat.mtimeMs : time;
+};
diff --git a/remote/test/puppeteer/tools/internal/util.ts b/remote/test/puppeteer/tools/internal/util.ts
new file mode 100644
index 0000000000..4ebbe8b86b
--- /dev/null
+++ b/remote/test/puppeteer/tools/internal/util.ts
@@ -0,0 +1,14 @@
+import {spawnSync} from 'child_process';
+
+export const spawnAndLog = (...args: string[]): void => {
+  const {stdout, stderr} = spawnSync(args[0]!, args.slice(1), {
+    encoding: 'utf-8',
+    shell: true,
+  });
+  if (stdout) {
+    console.log(stdout);
+  }
+  if (stderr) {
+    console.error(stderr);
+  }
+};
diff --git a/remote/test/puppeteer/tools/mochaRunner/README.md b/remote/test/puppeteer/tools/mochaRunner/README.md
new file mode 100644
index 0000000000..1e4398a63c
--- /dev/null
+++ b/remote/test/puppeteer/tools/mochaRunner/README.md
@@ -0,0 +1,73 @@
+# Mocha Runner
+
+Mocha Runner is a test runner on top of mocha.
+It uses `/test/TestSuites.json` and `/test/TestExpectations.json` files to run mocha tests in multiple configurations and interpret results.
+
+## Running tests for Mocha Runner itself.
+
+```bash
+npm run build && npx c8 node tools/mochaRunner/lib/test.js
+```
+
+## Running tests using Mocha Runner
+
+```bash
+npm run build && npm run test
+```
+
+By default, the runner runs all test suites applicable to the current platform.
+To pick a test suite, provide the `--test-suite` arguments. For example,
+
+```bash
+npm run build && npm run test -- --test-suite chrome-headless
+```
+
+## TestSuites.json
+
+Define test suites via the `testSuites` attribute. `parameters` can be used in the `TestExpectations.json` to disable tests
+based on parameters. The meaning for parameters is defined in `parameterDefinitions` which tell what env object corresponds
+to the given parameter.
+
+## TestExpectations.json
+
+An expectation looks like this:
+
+```json
+{
+  "testIdPattern": "[accessibility.spec]",
+  "platforms": ["darwin", "win32", "linux"],
+  "parameters": ["firefox"],
+  "expectations": ["SKIP"]
+}
+```
+
+| Field           | Description                                                   | Type                                                                                                 | Match Logic |
+| --------------- | ------------------------------------------------------------- | ---------------------------------------------------------------------------------------------------- | ----------- |
+| `testIdPattern` | Defines the full name (or pattern) to match against test name | string                                                                                               | -           |
+| `platforms`     | Defines the platforms the expectation is for                  | Array<`linux` \| `win32` \|`darwin`>                                                                 | `OR`        |
+| `parameters`    | Defines the parameters that the test has to match             | Array<[ParameterDefinitions](https://github.com/puppeteer/puppeteer/blob/main/test/TestSuites.json)> | `AND`       |
+| `expectations`  | The list of test results that are considered to be acceptable | Array<`PASS` \| `FAIL` \| `TIMEOUT` \| `SKIP`>                                                       | `OR`        |
+
+> Order of defining expectations matters. The latest expectation that is set will take president over earlier ones.
+
+> Adding `SKIP` to `expectations` will prevent the test from running, no matter if there are other expectations.
+
+### Using pattern in `testIdPattern`
+
+Sometimes we want a whole group of test to run. For that we can use a
+pattern to achieve.
+Pattern are defined with the use of `*` (using greedy method).
+
+Examples:
+| Pattern | Description | Example Pattern | Example match |
+|------------------------|---------------------------------------------------------------------------------------------|-----------------------------------|-------------------------------------------------------------------------------------------------------------------------|
+| `*` | Match all tests | - | - |
+| `[test.spec] *` | Matches tests for the given file | `[jshandle.spec] *` | `[jshandle] JSHandle JSHandle.toString should work for primitives` |
+| `[test.spec] <text> *` | Matches tests with for a given test with a specific prefixed test (usually a describe node) | `[page.spec] Page Page.goto *` | `[page.spec] Page Page.goto should work`,<br>`[page.spec] Page Page.goto should work with anchor navigation` |
+| `[test.spec] * <text>` | Matches test with a surfix | `[navigation.spec] * should work` | `[navigation.spec] navigation Page.goto should work`,<br>`[navigation.spec] navigation Page.waitForNavigation should work` |
+
+## Updating Expectations
+
+Currently, expectations are updated manually. The test runner outputs the
+suggested changes to the expectation file if the test run does not match
+expectations.
diff --git a/remote/test/puppeteer/tools/mochaRunner/src/interface.ts b/remote/test/puppeteer/tools/mochaRunner/src/interface.ts
new file mode 100644
index 0000000000..79329fcb0d
--- /dev/null
+++ b/remote/test/puppeteer/tools/mochaRunner/src/interface.ts
@@ -0,0 +1,130 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import Mocha from 'mocha';
+import commonInterface from 'mocha/lib/interfaces/common';
+
+import {testIdMatchesExpectationPattern} from './utils.js';
+
+type SuiteFunction = ((this: Mocha.Suite) => void) | undefined;
+type ExclusiveSuiteFunction = (this: Mocha.Suite) => void;
+
+const skippedTests: Array<{testIdPattern: string; skip: true}> = process.env[
+  'PUPPETEER_SKIPPED_TEST_CONFIG'
+]
+  ? JSON.parse(process.env['PUPPETEER_SKIPPED_TEST_CONFIG'])
+  : [];
+
+function shouldSkipTest(test: Mocha.Test): boolean {
+  // TODO: more efficient lookup.
+  const definition = skippedTests.find(skippedTest => {
+    return testIdMatchesExpectationPattern(test, skippedTest.testIdPattern);
+  });
+  if (definition && definition.skip) {
+    return true;
+  }
+  return false;
+}
+
+function customBDDInterface(suite: Mocha.Suite) {
+  const suites = [suite];
+
+  suite.on(
+    Mocha.Suite.constants.EVENT_FILE_PRE_REQUIRE,
+    function (context, file, mocha) {
+      const common = commonInterface(suites, context, mocha);
+
+      context['before'] = common.before;
+      context['after'] = common.after;
+      context['beforeEach'] = common.beforeEach;
+      context['afterEach'] = common.afterEach;
+      if (mocha.options.delay) {
+        context['run'] = common.runWithSuite(suite);
+      }
+      function describe(title: string, fn: SuiteFunction) {
+        return common.suite.create({
+          title: title,
+          file: file,
+          fn: fn,
+        });
+      }
+      describe.only = function (title: string, fn: ExclusiveSuiteFunction) {
+        return common.suite.only({
+          title: title,
+          file: file,
+          fn: fn,
+          isOnly: true,
+        });
+      };
+
+      describe.skip = function (title: string, fn: SuiteFunction) {
+        return common.suite.skip({
+          title: title,
+          file: file,
+          fn: fn,
+        });
+      };
+
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+      // @ts-ignore
+      context['describe'] = describe;
+
+      function it(title: string, fn: Mocha.TestFunction, itOnly = false) {
+        const suite = suites[0]!;
+        const test = new Mocha.Test(title, suite.isPending() ? undefined : fn);
+        test.file = file;
+        test.parent = suite;
+
+        const describeOnly = Boolean(
+          // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+          // @ts-ignore
+          suite.parent?._onlySuites.find(child => {
+            return child === suite;
+          })
+        );
+
+        if (shouldSkipTest(test) && !(itOnly || describeOnly)) {
+          const test = new Mocha.Test(title);
+          test.file = file;
+          suite.addTest(test);
+          return test;
+        } else {
+          suite.addTest(test);
+          return test;
+        }
+      }
+
+      it.only = function (title: string, fn: Mocha.TestFunction) {
+        return common.test.only(
+          mocha,
+          (context['it'] as typeof it)(title, fn, true)
+        );
+      };
+
+      it.skip = function (title: string) {
+        return context['it'](title);
+      };
+
+      // eslint-disable-next-line @typescript-eslint/ban-ts-comment
+      // @ts-ignore
+      context.it = it;
+    }
+  );
+}
+
+customBDDInterface.description = 'Custom BDD';
+
+module.exports = customBDDInterface;
diff --git a/remote/test/puppeteer/tools/mochaRunner/src/main.ts b/remote/test/puppeteer/tools/mochaRunner/src/main.ts
new file mode 100644
index 0000000000..d2547e721c
--- /dev/null
+++ b/remote/test/puppeteer/tools/mochaRunner/src/main.ts
@@ -0,0 +1,259 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {randomUUID} from 'crypto';
+import fs from 'fs';
+import {spawn, SpawnOptions} from 'node:child_process';
+import os from 'os';
+import path from 'path';
+
+import {
+  TestExpectation,
+  MochaResults,
+  zTestSuiteFile,
+  zPlatform,
+  TestSuite,
+  TestSuiteFile,
+  Platform,
+} from './types.js';
+import {
+  extendProcessEnv,
+  filterByPlatform,
+  readJSON,
+  filterByParameters,
+  getExpectationUpdates,
+  printSuggestions,
+  RecommendedExpectation,
+  writeJSON,
+} from './utils.js';
+
+function getApplicableTestSuites(
+  parsedSuitesFile: TestSuiteFile,
+  platform: Platform
+): TestSuite[] {
+  const testSuiteArgIdx = process.argv.indexOf('--test-suite');
+  let applicableSuites: TestSuite[] = [];
+
+  if (testSuiteArgIdx === -1) {
+    applicableSuites = filterByPlatform(parsedSuitesFile.testSuites, platform);
+  } else {
+    const testSuiteId = process.argv[testSuiteArgIdx + 1];
+    const testSuite = parsedSuitesFile.testSuites.find(suite => {
+      return suite.id === testSuiteId;
+    });
+
+    if (!testSuite) {
+      console.error(`Test suite ${testSuiteId} is not defined`);
+      process.exit(1);
+    }
+
+    if (!testSuite.platforms.includes(platform)) {
+      console.warn(
+        `Test suite ${testSuiteId} is not enabled for your platform. Running it anyway.`
+      );
+    }
+
+    applicableSuites = [testSuite];
+  }
+
+  return applicableSuites;
+}
+
+async function main() {
+  const noCoverage = process.argv.indexOf('--no-coverage') !== -1;
+  const noSuggestions = process.argv.indexOf('--no-suggestions') !== -1;
+
+  const statsFilenameIdx = process.argv.indexOf('--save-stats-to');
+  let statsFilename = '';
+  if (statsFilenameIdx !== -1) {
+    statsFilename = process.argv[statsFilenameIdx + 1] as string;
+    if (statsFilename.includes('INSERTID')) {
+      statsFilename = statsFilename.replace(/INSERTID/gi, randomUUID());
+    }
+  }
+
+  const platform = zPlatform.parse(os.platform());
+
+  const expectations = readJSON(
+    path.join(process.cwd(), 'test', 'TestExpectations.json')
+  ) as TestExpectation[];
+
+  const parsedSuitesFile = zTestSuiteFile.parse(
+    readJSON(path.join(process.cwd(), 'test', 'TestSuites.json'))
+  );
+
+  const applicableSuites = getApplicableTestSuites(parsedSuitesFile, platform);
+
+  console.log('Planning to run the following test suites', applicableSuites);
+  if (statsFilename) {
+    console.log('Test stats will be saved to', statsFilename);
+  }
+
+  let fail = false;
+  const recommendations: RecommendedExpectation[] = [];
+  try {
+    for (const suite of applicableSuites) {
+      const parameters = suite.parameters;
+
+      const applicableExpectations = filterByParameters(
+        filterByPlatform(expectations, platform),
+        parameters
+      ).reverse();
+
+      // Add more logging when the GitHub Action Debugging option is set
+      // https://docs.github.com/en/actions/learn-github-actions/variables#default-environment-variables
+      const githubActionDebugging = process.env['RUNNER_DEBUG']
+        ? {
+            DEBUG: 'puppeteer:*',
+            EXTRA_LAUNCH_OPTIONS: JSON.stringify({
+              extraPrefsFirefox: {
+                'remote.log.level': 'Trace',
+              },
+            }),
+          }
+        : {};
+
+      const env = extendProcessEnv([
+        ...parameters.map(param => {
+          return parsedSuitesFile.parameterDefinitions[param];
+        }),
+        {
+          PUPPETEER_SKIPPED_TEST_CONFIG: JSON.stringify(
+            applicableExpectations.map(ex => {
+              return {
+                testIdPattern: ex.testIdPattern,
+                skip: ex.expectations.includes('SKIP'),
+              };
+            })
+          ),
+        },
+        githubActionDebugging,
+      ]);
+
+      const tmpDir = fs.mkdtempSync(
+        path.join(os.tmpdir(), 'puppeteer-test-runner-')
+      );
+      const tmpFilename = statsFilename
+        ? statsFilename
+        : path.join(tmpDir, 'output.json');
+      console.log('Running', JSON.stringify(parameters), tmpFilename);
+      const reporterArgumentIndex = process.argv.indexOf('--reporter');
+      const args = [
+        '-u',
+        path.join(__dirname, 'interface.js'),
+        '-R',
+        reporterArgumentIndex === -1
+          ? path.join(__dirname, 'reporter.js')
+          : process.argv[reporterArgumentIndex + 1] || '',
+        '-O',
+        'output=' + tmpFilename,
+      ];
+      const retriesArgumentIndex = process.argv.indexOf('--retries');
+      const timeoutArgumentIndex = process.argv.indexOf('--timeout');
+      if (retriesArgumentIndex > -1) {
+        args.push('--retries', process.argv[retriesArgumentIndex + 1] || '');
+      }
+      if (timeoutArgumentIndex > -1) {
+        args.push('--timeout', process.argv[timeoutArgumentIndex + 1] || '');
+      }
+      if (process.argv.indexOf('--no-parallel')) {
+        args.push('--no-parallel');
+      }
+      if (process.argv.indexOf('--fullTrace')) {
+        args.push('--fullTrace');
+      }
+      const spawnArgs: SpawnOptions = {
+        shell: true,
+        cwd: process.cwd(),
+        stdio: 'inherit',
+        env,
+      };
+      const handle = noCoverage
+        ? spawn('npx', ['mocha', ...args], spawnArgs)
+        : spawn(
+            'npx',
+            [
+              'c8',
+              '--check-coverage',
+              '--lines',
+              String(suite.expectedLineCoverage),
+              'npx mocha',
+              ...args,
+            ],
+            spawnArgs
+          );
+      await new Promise<void>((resolve, reject) => {
+        handle.on('error', err => {
+          reject(err);
+        });
+        handle.on('close', () => {
+          resolve();
+        });
+      });
+      console.log('Finished', JSON.stringify(parameters));
+      try {
+        const results = readJSON(tmpFilename) as MochaResults;
+        const updates = getExpectationUpdates(results, applicableExpectations, {
+          platforms: [os.platform()],
+          parameters,
+        });
+        results.parameters = parameters;
+        results.platform = platform;
+        results.date = new Date().toISOString();
+        if (updates.length > 0) {
+          fail = true;
+          recommendations.push(...updates);
+          results.updates = updates;
+          writeJSON(tmpFilename, results);
+        } else {
+          console.log('Test run matches expectations');
+          writeJSON(tmpFilename, results);
+          continue;
+        }
+      } catch (err) {
+        fail = true;
+        console.error(err);
+      }
+    }
+  } catch (err) {
+    fail = true;
+    console.error(err);
+  } finally {
+    if (!noSuggestions) {
+      printSuggestions(
+        recommendations,
+        'add',
+        'Add the following to TestExpectations.json to ignore the error:'
+      );
+      printSuggestions(
+        recommendations,
+        'remove',
+        'Remove the following from the TestExpectations.json to ignore the error:'
+      );
+      printSuggestions(
+        recommendations,
+        'update',
+        'Update the following expectations in the TestExpectations.json to ignore the error:'
+      );
+    }
+    process.exit(fail ? 1 : 0);
+  }
+}
+
+main().catch(error => {
+  console.error(error);
+  process.exit(1);
+});
diff --git a/remote/test/puppeteer/tools/mochaRunner/src/reporter.ts b/remote/test/puppeteer/tools/mochaRunner/src/reporter.ts
new file mode 100644
index 0000000000..37ca586215
--- /dev/null
+++ b/remote/test/puppeteer/tools/mochaRunner/src/reporter.ts
@@ -0,0 +1,26 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import Mocha from 'mocha';
+
+class SpecJSONReporter extends Mocha.reporters.Spec {
+  constructor(runner: Mocha.Runner, options?: Mocha.MochaOptions) {
+    super(runner, options);
+    Mocha.reporters.JSON.call(this, runner, options);
+  }
+}
+
+module.exports = SpecJSONReporter;
diff --git a/remote/test/puppeteer/tools/mochaRunner/src/test.ts b/remote/test/puppeteer/tools/mochaRunner/src/test.ts
new file mode 100644
index 0000000000..1e0328499c
--- /dev/null
+++ b/remote/test/puppeteer/tools/mochaRunner/src/test.ts
@@ -0,0 +1,134 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import assert from 'node:assert/strict';
+import {describe, test} from 'node:test';
+
+import {TestExpectation} from './types.js';
+import {
+  filterByParameters,
+  getTestResultForFailure,
+  isWildCardPattern,
+  testIdMatchesExpectationPattern,
+} from './utils.js';
+import {getFilename, extendProcessEnv} from './utils.js';
+
+void test('extendProcessEnv', () => {
+  const env = extendProcessEnv([{TEST: 'TEST'}, {TEST2: 'TEST2'}]);
+  assert.equal(env['TEST'], 'TEST');
+  assert.equal(env['TEST2'], 'TEST2');
+});
+
+void test('getFilename', () => {
+  assert.equal(getFilename('/etc/test.ts'), 'test');
+  assert.equal(getFilename('/etc/test.js'), 'test');
+});
+
+void test('getTestResultForFailure', () => {
+  assert.equal(
+    getTestResultForFailure({err: {code: 'ERR_MOCHA_TIMEOUT'}}),
+    'TIMEOUT'
+  );
+  assert.equal(getTestResultForFailure({err: {code: 'ERROR'}}), 'FAIL');
+});
+
+void test('filterByParameters', () => {
+  const expectations: TestExpectation[] = [
+    {
+      testIdPattern:
+        '[oopif.spec] OOPIF "after all" hook for "should keep track of a frames OOP state"',
+      platforms: ['darwin'],
+      parameters: ['firefox', 'headless'],
+      expectations: ['FAIL'],
+    },
+  ];
+  assert.equal(
+    filterByParameters(expectations, ['firefox', 'headless']).length,
+    1
+  );
+  assert.equal(filterByParameters(expectations, ['firefox']).length, 0);
+  assert.equal(
+    filterByParameters(expectations, ['firefox', 'headless', 'other']).length,
+    1
+  );
+  assert.equal(filterByParameters(expectations, ['other']).length, 0);
+});
+
+void test('isWildCardPattern', () => {
+  assert.equal(isWildCardPattern(''), false);
+  assert.equal(isWildCardPattern('a'), false);
+  assert.equal(isWildCardPattern('*'), true);
+
+  assert.equal(isWildCardPattern('[queryHandler.spec]'), false);
+  assert.equal(isWildCardPattern('[queryHandler.spec] *'), true);
+  assert.equal(isWildCardPattern(' [queryHandler.spec] '), false);
+
+  assert.equal(isWildCardPattern('[queryHandler.spec] Query'), false);
+  assert.equal(isWildCardPattern('[queryHandler.spec] Page *'), true);
+  assert.equal(isWildCardPattern('[queryHandler.spec] Page Page.goto *'), true);
+});
+
+describe('testIdMatchesExpectationPattern', () => {
+  const expectations: Array<[string, boolean]> = [
+    ['', false],
+    ['*', true],
+    ['* should work', true],
+    ['* Page.setContent *', true],
+    ['* should work as expected', false],
+    ['Page.setContent *', false],
+    ['[page.spec]', false],
+    ['[page.spec] *', true],
+    ['[page.spec] Page *', true],
+    ['[page.spec] Page Page.setContent *', true],
+    ['[page.spec] Page Page.setContent should work', true],
+    ['[page.spec] Page * should work', true],
+    ['[page.spec] * Page.setContent *', true],
+    ['[jshandle.spec] *', false],
+    ['[jshandle.spec] JSHandle should work', false],
+  ];
+
+  void test('with MochaTest', () => {
+    const test = {
+      title: 'should work',
+      file: 'page.spec.ts',
+      fullTitle() {
+        return 'Page Page.setContent should work';
+      },
+    } as any;
+
+    for (const [pattern, expected] of expectations) {
+      assert.equal(
+        testIdMatchesExpectationPattern(test, pattern),
+        expected,
+        `Expected "${pattern}" to yield "${expected}"`
+      );
+    }
+  });
+  void test('with MochaTestResult', () => {
+    const test = {
+      title: 'should work',
+      file: 'page.spec.ts',
+      fullTitle: 'Page Page.setContent should work',
+    } as any;
+
+    for (const [pattern, expected] of expectations) {
+      assert.equal(
+        testIdMatchesExpectationPattern(test, pattern),
+        expected,
+        `Expected "${pattern}" to yield "${expected}"`
+      );
+    }
+  });
+});
diff --git a/remote/test/puppeteer/tools/mochaRunner/src/types.ts b/remote/test/puppeteer/tools/mochaRunner/src/types.ts
new file mode 100644
index 0000000000..8d8a08ee98
--- /dev/null
+++ b/remote/test/puppeteer/tools/mochaRunner/src/types.ts
@@ -0,0 +1,67 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import {z} from 'zod';
+
+import {RecommendedExpectation} from './utils.js';
+
+export const zPlatform = z.enum(['win32', 'linux', 'darwin']);
+
+export type Platform = z.infer<typeof zPlatform>;
+
+export const zTestSuite = z.object({
+  id: z.string(),
+  platforms: z.array(zPlatform),
+  parameters: z.array(z.string()),
+  expectedLineCoverage: z.number(),
+});
+
+export type TestSuite = z.infer<typeof zTestSuite>;
+
+export const zTestSuiteFile = z.object({
+  testSuites: z.array(zTestSuite),
+  parameterDefinitions: z.record(z.any()),
+});
+
+export type TestSuiteFile = z.infer<typeof zTestSuiteFile>;
+
+export type TestResult = 'PASS' | 'FAIL' | 'TIMEOUT' | 'SKIP';
+
+export type TestExpectation = {
+  testIdPattern: string;
+  platforms: NodeJS.Platform[];
+  parameters: string[];
+  expectations: TestResult[];
+};
+
+export type MochaTestResult = {
+  fullTitle: string;
+  title: string;
+  file: string;
+  err?: {code: string};
+};
+
+export type MochaResults = {
+  stats: unknown;
+  pending: MochaTestResult[];
+  passes: MochaTestResult[];
+  failures: MochaTestResult[];
+  // Added by mochaRunner.
+  updates?: RecommendedExpectation[];
+  parameters?: string[];
+  platform?: string;
+  date?: string;
+};
diff --git a/remote/test/puppeteer/tools/mochaRunner/src/utils.ts b/remote/test/puppeteer/tools/mochaRunner/src/utils.ts
new file mode 100644
index 0000000000..9fdbf65583
--- /dev/null
+++ b/remote/test/puppeteer/tools/mochaRunner/src/utils.ts
@@ -0,0 +1,265 @@
+/**
+ * Copyright 2022 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+import fs from 'fs';
+import path from 'path';
+
+import {
+  MochaTestResult,
+  TestExpectation,
+  MochaResults,
+  TestResult,
+} from './types.js';
+
+export function extendProcessEnv(envs: object[]): NodeJS.ProcessEnv {
+  return envs.reduce(
+    (acc: object, item: object) => {
+      Object.assign(acc, item);
+      return acc;
+    },
+    {
+      ...process.env,
+    }
+  ) as NodeJS.ProcessEnv;
+}
+
+export function getFilename(file: string): string {
+  return path.basename(file).replace(path.extname(file), '');
+}
+
+export function readJSON(path: string): unknown {
+  return JSON.parse(fs.readFileSync(path, 'utf-8'));
+}
+
+export function writeJSON(path: string, json: unknown): unknown {
+  return fs.writeFileSync(path, JSON.stringify(json, null, 2));
+}
+
+export function filterByPlatform<T extends {platforms: NodeJS.Platform[]}>(
+  items: T[],
+  platform: NodeJS.Platform
+): T[] {
+  return items.filter(item => {
+    return item.platforms.includes(platform);
+  });
+}
+
+export function prettyPrintJSON(json: unknown): void {
+  console.log(JSON.stringify(json, null, 2));
+}
+
+export function printSuggestions(
+  recommendations: RecommendedExpectation[],
+  action: RecommendedExpectation['action'],
+  message: string
+): void {
+  const toPrint = recommendations.filter(item => {
+    return item.action === action;
+  });
+  if (toPrint.length) {
+    console.log(message);
+    prettyPrintJSON(
+      toPrint.map(item => {
+        return item.expectation;
+      })
+    );
+    console.log(
+      'The recommendations are based on the following applied expectaions:'
+    );
+    prettyPrintJSON(
+      toPrint.map(item => {
+        return item.basedOn;
+      })
+    );
+  }
+}
+
+export function filterByParameters(
+  expectations: TestExpectation[],
+  parameters: string[]
+): TestExpectation[] {
+  const querySet = new Set(parameters);
+  return expectations.filter(ex => {
+    return ex.parameters.every(param => {
+      return querySet.has(param);
+    });
+  });
+}
+
+/**
+ * The last expectation that matches an empty string as all tests pattern
+ * or the name of the file or the whole name of the test the filter wins.
+ */
+export function findEffectiveExpectationForTest(
+  expectations: TestExpectation[],
+  result: MochaTestResult
+): TestExpectation | undefined {
+  return expectations.find(expectation => {
+    return testIdMatchesExpectationPattern(result, expectation.testIdPattern);
+  });
+}
+
+export type RecommendedExpectation = {
+  expectation: TestExpectation;
+  action: 'remove' | 'add' | 'update';
+  basedOn?: TestExpectation;
+};
+
+export function isWildCardPattern(testIdPattern: string): boolean {
+  return testIdPattern.includes('*');
+}
+
+export function getExpectationUpdates(
+  results: MochaResults,
+  expectations: TestExpectation[],
+  context: {
+    platforms: NodeJS.Platform[];
+    parameters: string[];
+  }
+): RecommendedExpectation[] {
+  const output: Map<string, RecommendedExpectation> = new Map();
+
+  for (const pass of results.passes) {
+    // If an error occurs during a hook
+    // the error not have a file associated with it
+    if (!pass.file) {
+      continue;
+    }
+
+    const expectationEntry = findEffectiveExpectationForTest(
+      expectations,
+      pass
+    );
+    if (expectationEntry && !expectationEntry.expectations.includes('PASS')) {
+      if (isWildCardPattern(expectationEntry.testIdPattern)) {
+        addEntry({
+          expectation: {
+            testIdPattern: getTestId(pass.file, pass.fullTitle),
+            platforms: context.platforms,
+            parameters: context.parameters,
+            expectations: ['PASS'],
+          },
+          action: 'add',
+          basedOn: expectationEntry,
+        });
+      } else {
+        addEntry({
+          expectation: expectationEntry,
+          action: 'remove',
+          basedOn: expectationEntry,
+        });
+      }
+    }
+  }
+
+  for (const failure of results.failures) {
+    // If an error occurs during a hook
+    // the error not have a file associated with it
+    if (!failure.file) {
+      continue;
+    }
+
+    const expectationEntry = findEffectiveExpectationForTest(
+      expectations,
+      failure
+    );
+    if (expectationEntry && !expectationEntry.expectations.includes('SKIP')) {
+      if (
+        !expectationEntry.expectations.includes(
+          getTestResultForFailure(failure)
+        )
+      ) {
+        // If the effective explanation is a wildcard, we recommend adding a new
+        // expectation instead of updating the wildcard that might affect multiple
+        // tests.
+        if (isWildCardPattern(expectationEntry.testIdPattern)) {
+          addEntry({
+            expectation: {
+              testIdPattern: getTestId(failure.file, failure.fullTitle),
+              platforms: context.platforms,
+              parameters: context.parameters,
+              expectations: [getTestResultForFailure(failure)],
+            },
+            action: 'add',
+            basedOn: expectationEntry,
+          });
+        } else {
+          addEntry({
+            expectation: {
+              ...expectationEntry,
+              expectations: [
+                ...expectationEntry.expectations,
+                getTestResultForFailure(failure),
+              ],
+            },
+            action: 'update',
+            basedOn: expectationEntry,
+          });
+        }
+      }
+    } else if (!expectationEntry) {
+      addEntry({
+        expectation: {
+          testIdPattern: getTestId(failure.file, failure.fullTitle),
+          platforms: context.platforms,
+          parameters: context.parameters,
+          expectations: [getTestResultForFailure(failure)],
+        },
+        action: 'add',
+      });
+    }
+  }
+
+  function addEntry(value: RecommendedExpectation) {
+    const key = JSON.stringify(value);
+    if (!output.has(key)) {
+      output.set(key, value);
+    }
+  }
+
+  return [...output.values()];
+}
+
+export function getTestResultForFailure(
+  test: Pick<MochaTestResult, 'err'>
+): TestResult {
+  return test.err?.code === 'ERR_MOCHA_TIMEOUT' ? 'TIMEOUT' : 'FAIL';
+}
+
+export function getTestId(file: string, fullTitle?: string): string {
+  return fullTitle
+    ? `[${getFilename(file)}] ${fullTitle}`
+    : `[${getFilename(file)}]`;
+}
+
+export function testIdMatchesExpectationPattern(
+  test: MochaTestResult | Mocha.Test,
+  pattern: string
+): boolean {
+  const patternRegExString = pattern
+    // Replace `*` with non special character
+    .replace(/\*/g, '--STAR--')
+    // Escape special characters https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions#escaping
+    .replace(/[.*+?^${}()|[\]\\]/g, '\\$&')
+    // Replace placeholder with greedy match
+    .replace(/--STAR--/g, '(.*)?');
+  // Match beginning and end explicitly
+  const patternRegEx = new RegExp(`^${patternRegExString}$`);
+  const fullTitle =
+    typeof test.fullTitle === 'string' ? test.fullTitle : test.fullTitle();
+
+  return patternRegEx.test(getTestId(test.file ?? '', fullTitle));
+}
diff --git a/remote/test/puppeteer/tools/mochaRunner/tsconfig.json b/remote/test/puppeteer/tools/mochaRunner/tsconfig.json
new file mode 100644
index 0000000000..c2576c2564
--- /dev/null
+++ b/remote/test/puppeteer/tools/mochaRunner/tsconfig.json
@@ -0,0 +1,11 @@
+{
+  "extends": "../../tsconfig.base.json",
+  "compilerOptions": {
+    "allowJs": true,
+    "composite": true,
+    "module": "CommonJS",
+    "outDir": "lib",
+    "rootDir": "src"
+  },
+  "include": ["src"]
+}
diff --git a/remote/test/puppeteer/tools/remove_version_suffix.js b/remote/test/puppeteer/tools/remove_version_suffix.js
new file mode 100644
index 0000000000..091a35ec9b
--- /dev/null
+++ b/remote/test/puppeteer/tools/remove_version_suffix.js
@@ -0,0 +1,26 @@
+/**
+ * Copyright 2020 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+const fs = require('fs');
+const json = fs.readFileSync('./package.json', 'utf8').toString();
+const pkg = JSON.parse(json);
+const oldVersion = pkg.version;
+const version = oldVersion.replace(/-post$/, '');
+const updated = json.replace(
+  `"version": "${oldVersion}"`,
+  `"version": "${version}"`
+);
+fs.writeFileSync('./package.json', updated);
diff --git a/remote/test/puppeteer/tools/sort-test-expectations.js b/remote/test/puppeteer/tools/sort-test-expectations.js
new file mode 100644
index 0000000000..96e32145e4
--- /dev/null
+++ b/remote/test/puppeteer/tools/sort-test-expectations.js
@@ -0,0 +1,59 @@
+/**
+ * Copyright 2023 Google Inc. All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// TODO: this could be an eslint rule probably.
+
+const fs = require('fs');
+const path = require('path');
+
+const prettier = require('prettier');
+
+const source = 'test/TestExpectations.json';
+
+const testExpectations = JSON.parse(fs.readFileSync(source, 'utf-8'));
+
+function getSpecificity(item) {
+  return (
+    item.parameters.length +
+    (item.testIdPattern.includes('*')
+      ? item.testIdPattern === '*'
+        ? 0
+        : 1
+      : 2)
+  );
+}
+
+testExpectations.sort((a, b) => {
+  const result = getSpecificity(a) - getSpecificity(b);
+  if (result === 0) {
+    return a.testIdPattern.localeCompare(b.testIdPattern);
+  }
+  return result;
+});
+
+testExpectations.forEach(item => {
+  item.parameters.sort();
+  item.expectations.sort();
+  item.platforms.sort();
+});
+
+fs.writeFileSync(
+  source,
+  prettier.format(JSON.stringify(testExpectations), {
+    ...require(path.join(__dirname, '..', '.prettierrc.cjs')),
+    parser: 'json',
+  })
+);
diff --git a/remote/test/puppeteer/tools/third_party/validate-licenses.ts b/remote/test/puppeteer/tools/third_party/validate-licenses.ts
new file mode 100644
index 0000000000..4d1c05497b
--- /dev/null
+++ b/remote/test/puppeteer/tools/third_party/validate-licenses.ts
@@ -0,0 +1,153 @@
+// The MIT License
+
+// Copyright (c) 2010-2022 Google LLC. http://angular.io/license
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy of
+// this software and associated documentation files (the "Software"), to deal in
+// the Software without restriction, including without limitation the rights to
+// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+// the Software, and to permit persons to whom the Software is furnished to do so,
+// subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+// Taken and adapted from https://github.com/angular/angular-cli/blob/173823d/scripts/validate-licenses.ts.
+
+import * as path from 'path';
+
+import checker from 'license-checker';
+import spdxSatisfies from 'spdx-satisfies';
+
+/**
+ * A general note on some black listed specific licenses:
+ *
+ * - CC0 This is not a valid license. It does not grant copyright of the
+ *   code/asset, and does not resolve patents or other licensed work. The
+ *   different claims also have no standing in court and do not provide
+ *   protection to or from Google and/or third parties. We cannot use nor
+ *   contribute to CC0 licenses.
+ * - Public Domain Same as CC0, it is not a valid license.
+ */
+const allowedLicenses = [
+  // Regular valid open source licenses supported by Google.
+  'MIT',
+  'ISC',
+  'Apache-2.0',
+  'Python-2.0',
+  'Artistic-2.0',
+
+  'BSD-2-Clause',
+  'BSD-3-Clause',
+  'BSD-4-Clause',
+
+  // All CC-BY licenses have a full copyright grant and attribution section.
+  'CC-BY-3.0',
+  'CC-BY-4.0',
+
+  // Have a full copyright grant. Validated by opensource team.
+  'Unlicense',
+  'CC0-1.0',
+  '0BSD',
+
+  // Combinations.
+  '(AFL-2.1 OR BSD-2-Clause)',
+];
+
+// Name variations of SPDX licenses that some packages have.
+// Licenses not included in SPDX but accepted will be converted to MIT.
+const licenseReplacements: {[key: string]: string} = {
+  // Just a longer string that our script catches. SPDX official name is the shorter one.
+  'Apache License, Version 2.0': 'Apache-2.0',
+  Apache2: 'Apache-2.0',
+  'Apache 2.0': 'Apache-2.0',
+  'Apache v2': 'Apache-2.0',
+  'AFLv2.1': 'AFL-2.1',
+  // BSD is BSD-2-clause by default.
+  BSD: 'BSD-2-Clause',
+};
+
+// Specific packages to ignore, add a reason in a comment. Format: package-name@version.
+const ignoredPackages = [
+  // * Development only
+  'spdx-license-ids@3.0.5', // CC0 but it's content only (index.json, no code) and not distributed.
+];
+
+// Check if a license is accepted by an array of accepted licenses
+function _passesSpdx(licenses: string[], accepted: string[]) {
+  try {
+    return spdxSatisfies(licenses.join(' AND '), accepted.join(' OR '));
+  } catch {
+    return false;
+  }
+}
+
+function main(): Promise<number> {
+  return new Promise(resolve => {
+    const startFolder = path.join(__dirname, '..', '..');
+    checker.init(
+      {start: startFolder, excludePrivatePackages: true},
+      (err: Error, json: object) => {
+        if (err) {
+          console.error(`Something happened:\n${err.message}`);
+          resolve(1);
+        } else {
+          console.info(`Testing ${Object.keys(json).length} packages.\n`);
+
+          // Packages with bad licenses are those that neither pass SPDX nor are ignored.
+          const badLicensePackages = Object.keys(json)
+            .map(key => {
+              return {
+                id: key,
+                licenses: ([] as string[])
+                  .concat((json[key] as {licenses: string[]}).licenses)
+                  // `*` is used when the license is guessed.
+                  .map(x => {
+                    return x.replace(/\*$/, '');
+                  })
+                  .map(x => {
+                    return x in licenseReplacements
+                      ? licenseReplacements[x]
+                      : x;
+                  }),
+              };
+            })
+            .filter(pkg => {
+              return !_passesSpdx(pkg.licenses, allowedLicenses);
+            })
+            .filter(pkg => {
+              return !ignoredPackages.find(ignored => {
+                return ignored === pkg.id;
+              });
+            });
+
+          // Report packages with bad licenses
+          if (badLicensePackages.length > 0) {
+            console.error('Invalid package licences found:');
+            badLicensePackages.forEach(pkg => {
+              console.error(`${pkg.id}: ${JSON.stringify(pkg.licenses)}`);
+            });
+            console.error(
+              `\n${badLicensePackages.length} total packages with invalid licenses.`
+            );
+            resolve(2);
+          } else {
+            console.info('All package licenses are valid.');
+            resolve(0);
+          }
+        }
+      }
+    );
+  });
+}
+
+main().then(code => {
+  return process.exit(code);
+});
diff --git a/remote/test/puppeteer/tools/tsconfig.json b/remote/test/puppeteer/tools/tsconfig.json
new file mode 100644
index 0000000000..393392c494
--- /dev/null
+++ b/remote/test/puppeteer/tools/tsconfig.json
@@ -0,0 +1,4 @@
+{
+  "extends": "../tsconfig.base.json",
+  "files": ["../package.json"]
+}