1 files changed, 75 insertions, 0 deletions
diff --git a/remote/test/puppeteer/packages/browsers/test/src/utils.ts b/remote/test/puppeteer/packages/browsers/test/src/utils.ts
new file mode 100644
index 0000000000..bae231423e
--- /dev/null
+++ b/remote/test/puppeteer/packages/browsers/test/src/utils.ts
@@ -0,0 +1,75 @@
+/**
+ * @license
+ * Copyright 2023 Google Inc.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+import {execSync} from 'child_process';
+import os from 'os';
+import path from 'path';
+import * as readline from 'readline';
+import {Writable, Readable} from 'stream';
+
+import {TestServer} from '@pptr/testserver';
+
+import {isErrorLike} from '../../lib/cjs/launch.js';
+import {Cache} from '../../lib/cjs/main.js';
+
+export function createMockedReadlineInterface(
+  input: string
+): readline.Interface {
+  const readable = Readable.from([input]);
+  const writable = new Writable({
+    write(_chunk, _encoding, callback) {
+      // Suppress the output to keep the test clean
+      callback();
+    },
+  });
+
+  return readline.createInterface({
+    input: readable,
+    output: writable,
+  });
+}
+
+const startServer = async () => {
+  const assetsPath = path.join(__dirname, '..', '.cache', 'server');
+  return await TestServer.create(assetsPath);
+};
+
+interface ServerState {
+  server: TestServer;
+}
+
+const state: Partial<ServerState> = {};
+
+export function setupTestServer(): void {
+  before(async () => {
+    state.server = await startServer();
+  });
+
+  after(async () => {
+    await state.server!.stop();
+    state.server = undefined;
+  });
+}
+
+export function getServerUrl(): string {
+  return `http://localhost:${state.server!.port}`;
+}
+
+export function clearCache(tmpDir: string): void {
+  try {
+    new Cache(tmpDir).clear();
+  } catch (err) {
+    if (os.platform() === 'win32') {
+      console.log(execSync('tasklist').toString('utf-8'));
+      // Sometimes on Windows the folder cannot be removed due to unknown reasons.
+      // We suppress the error to avoud flakiness.
+      if (isErrorLike(err) && err.message.includes('EBUSY')) {
+        return;
+      }
+    }
+    throw err;
+  }
+}