1 files changed, 123 insertions, 0 deletions
diff --git a/remote/test/puppeteer/test/src/worker.spec.ts b/remote/test/puppeteer/test/src/worker.spec.ts
new file mode 100644
index 0000000000..733c5bdff1
--- /dev/null
+++ b/remote/test/puppeteer/test/src/worker.spec.ts
@@ -0,0 +1,123 @@
+/**
+ * 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
+ *
+ *     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 expect from 'expect';
+import {ConsoleMessage} from 'puppeteer-core/internal/common/ConsoleMessage.js';
+import {WebWorker} from 'puppeteer-core/internal/common/WebWorker.js';
+
+import {
+  getTestState,
+  setupTestBrowserHooks,
+  setupTestPageAndContextHooks,
+} from './mocha-utils.js';
+import {waitEvent} from './utils.js';
+
+describe('Workers', function () {
+  setupTestBrowserHooks();
+  setupTestPageAndContextHooks();
+  it('Page.workers', async () => {
+    const {page, server} = getTestState();
+
+    await Promise.all([
+      waitEvent(page, 'workercreated'),
+      page.goto(server.PREFIX + '/worker/worker.html'),
+    ]);
+    const worker = page.workers()[0]!;
+    expect(worker?.url()).toContain('worker.js');
+
+    expect(
+      await worker?.evaluate(() => {
+        return (globalThis as any).workerFunction();
+      })
+    ).toBe('worker function result');
+
+    await page.goto(server.EMPTY_PAGE);
+    expect(page.workers()).toHaveLength(0);
+  });
+  it('should emit created and destroyed events', async () => {
+    const {page} = getTestState();
+
+    const workerCreatedPromise = waitEvent<WebWorker>(page, 'workercreated');
+    const workerObj = await page.evaluateHandle(() => {
+      return new Worker('data:text/javascript,1');
+    });
+    const worker = await workerCreatedPromise;
+    const workerThisObj = await worker.evaluateHandle(() => {
+      return this;
+    });
+    const workerDestroyedPromise = waitEvent(page, 'workerdestroyed');
+    await page.evaluate((workerObj: Worker) => {
+      return workerObj.terminate();
+    }, workerObj);
+    expect(await workerDestroyedPromise).toBe(worker);
+    const error = await workerThisObj.getProperty('self').catch(error => {
+      return error;
+    });
+    expect(error.message).toContain('Most likely the worker has been closed.');
+  });
+  it('should report console logs', async () => {
+    const {page} = getTestState();
+
+    const [message] = await Promise.all([
+      waitEvent(page, 'console'),
+      page.evaluate(() => {
+        return new Worker(`data:text/javascript,console.log(1)`);
+      }),
+    ]);
+    expect(message.text()).toBe('1');
+    expect(message.location()).toEqual({
+      url: '',
+      lineNumber: 0,
+      columnNumber: 8,
+    });
+  });
+  it('should have JSHandles for console logs', async () => {
+    const {page} = getTestState();
+
+    const logPromise = waitEvent<ConsoleMessage>(page, 'console');
+    await page.evaluate(() => {
+      return new Worker(`data:text/javascript,console.log(1,2,3,this)`);
+    });
+    const log = await logPromise;
+    expect(log.text()).toBe('1 2 3 JSHandle@object');
+    expect(log.args()).toHaveLength(4);
+    expect(await (await log.args()[3]!.getProperty('origin')).jsonValue()).toBe(
+      'null'
+    );
+  });
+  it('should have an execution context', async () => {
+    const {page} = getTestState();
+
+    const workerCreatedPromise = waitEvent<WebWorker>(page, 'workercreated');
+    await page.evaluate(() => {
+      return new Worker(`data:text/javascript,console.log(1)`);
+    });
+    const worker = await workerCreatedPromise;
+    expect(await (await worker.executionContext()).evaluate('1+1')).toBe(2);
+  });
+  it('should report errors', async () => {
+    const {page} = getTestState();
+
+    const errorPromise = waitEvent<Error>(page, 'pageerror');
+    await page.evaluate(() => {
+      return new Worker(
+        `data:text/javascript, throw new Error('this is my error');`
+      );
+    });
+    const errorLog = await errorPromise;
+    expect(errorLog.message).toContain('this is my error');
+  });
+});