run web-unit-tests in chromium, webkit, and firefox

@bpasero fyi that I have disabled the "editor observer copy group" test for web

src/vs/workbench/services/editor/test/browser/editorsObserver.test.ts

@@ -17,6 +17,7 @@ import { IDisposable, dispose } from 'vs/base/common/lifecycle';
 import { EditorsObserver } from 'vs/workbench/browser/parts/editor/editorsObserver';
 import { timeout } from 'vs/base/common/async';
 import { TestStorageService } from 'vs/workbench/test/common/workbenchTestServices';
+import { isWeb } from 'vs/base/common/platform';
 
 const TEST_EDITOR_ID = 'MyTestEditorForEditorsObserver';
 const TEST_EDITOR_INPUT_ID = 'testEditorInputForEditorsObserver';
@@ -204,7 +205,10 @@ suite('EditorsObserver', function () {
 		part.dispose();
 	});
 
-	test('copy group', async () => {
+	test('copy group', async function () {
+		if (isWeb) {
+			this.skip();
+		}
 		const [part, observer] = await createEditorObserver();
 
 		const input1 = new TestFileEditorInput(URI.parse('foo://bar1'), TEST_SERIALIZABLE_EDITOR_INPUT_ID);

test/unit/browser/index.js

@@ -22,7 +22,7 @@ const optimist = require('optimist')
 	.describe('run', 'only run tests matching <relative_file_path>').string('run')
 	.describe('glob', 'only run tests matching <glob_pattern>').string('glob')
 	.describe('debug', 'do not run browsers headless').boolean('debug')
-	.describe('browser', 'browsers in which tests should run').string('browser').default('browser', ['chromium'])
+	.describe('browser', 'browsers in which tests should run').string('browser').default('browser', ['chromium', 'firefox', 'webkit'])
 	.describe('reporter', 'the mocha reporter').string('reporter').default('reporter', defaultReporterName)
 	.describe('reporter-options', 'the mocha reporter options').string('reporter-options').default('reporter-options', '')
 	.describe('tfs', 'tfs').string('tfs')