Add custom editor test extension

Adds a simple set of tests for custom editors in a new extension. This is currently not run during CI since we want more testing to make sure it is reliable

.vscode/launch.json

@@ -176,6 +176,24 @@
 				"order": 6
 			}
 		},
+		{
+			"type": "extensionHost",
+			"request": "launch",
+			"name": "VS Code Custom Editor Tests",
+			"runtimeExecutable": "${execPath}",
+			"args": [
+				"${workspaceFolder}/extensions/vscode-custom-editor-tests/test-workspace",
+				"--extensionDevelopmentPath=${workspaceFolder}/extensions/vscode-custom-editor-tests",
+				"--extensionTestsPath=${workspaceFolder}/extensions/vscode-custom-editor-tests/out/test"
+			],
+			"outFiles": [
+				"${workspaceFolder}/out/**/*.js"
+			],
+			"presentation": {
+				"group": "5_tests",
+				"order": 6
+			}
+		},
 		{
 			"type": "chrome",
 			"request": "attach",

build/lib/extensions.ts

@@ -230,7 +230,8 @@ const excludedCommonExtensions = [
 	'vscode-test-resolver',
 	'ms-vscode.node-debug',
 	'ms-vscode.node-debug2',
-	'vscode-notebook-tests'
+	'vscode-notebook-tests',
+	'vscode-custom-editor-tests',
 ];
 const excludedDesktopExtensions = excludedCommonExtensions.concat([
 	'vscode-web-playground',

extensions/vscode-custom-editor-tests/customEditorMedia/textEditor.js

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+// @ts-check
+(function () {
+	// @ts-ignore
+	const vscode = acquireVsCodeApi();
+
+	const textArea = document.querySelector('textarea');
+
+	const initialState = vscode.getState();
+	if (initialState) {
+		textArea.value = initialState.value;
+	}
+
+	window.addEventListener('message', e => {
+		switch (e.data.type) {
+			case 'fakeInput':
+				{
+					const value = e.data.value;
+					textArea.value = value;
+					onInput();
+					break;
+				}
+
+			case 'setValue':
+				{
+					const value = e.data.value;
+					textArea.value = value;
+					vscode.setState({ value });
+
+					vscode.postMessage({
+						type: 'didChangeContent',
+						value: value
+					});
+					break;
+				}
+		}
+	});
+
+	const onInput = () => {
+		const value = textArea.value;
+		vscode.setState({ value });
+		vscode.postMessage({
+			type: 'edit',
+			value: value
+		});
+		vscode.postMessage({
+			type: 'didChangeContent',
+			value: value
+		});
+	};
+
+	textArea.addEventListener('input', onInput);
+}());

extensions/vscode-custom-editor-tests/package.json

+{
+  "name": "vscode-custom-editor-tests",
+  "description": "Custom editor tests for VS Code",
+  "version": "0.0.1",
+  "publisher": "vscode",
+  "license": "MIT",
+  "private": true,
+  "activationEvents": [
+    "onCustomEditor:testWebviewEditor.abc"
+  ],
+  "main": "./out/extension",
+  "enableProposedApi": true,
+  "engines": {
+    "vscode": "^1.48.0"
+  },
+  "scripts": {
+    "compile": "node ./node_modules/vscode/bin/compile -watch -p ./",
+    "vscode:prepublish": "node ../../node_modules/gulp/bin/gulp.js --gulpfile ../../build/gulpfile.extensions.js compile-extension:vscode-notebook-tests ./tsconfig.json"
+  },
+  "dependencies": {
+    "p-limit": "^3.0.2"
+  },
+  "devDependencies": {
+    "@types/node": "^12.11.7",
+    "@types/p-limit": "^2.2.0",
+    "mocha": "^2.3.3",
+    "mocha-junit-reporter": "^1.17.0",
+    "mocha-multi-reporters": "^1.1.7",
+    "vscode": "^1.1.36"
+  },
+  "contributes": {
+    "customEditors": [
+      {
+        "viewType": "testWebviewEditor.abc",
+        "displayName": "Test ABC editor",
+        "selector": [
+          {
+            "filenamePattern": "*.abc"
+          }
+        ]
+      }
+    ]
+  }
+}

extensions/vscode-custom-editor-tests/src/customTextEditor.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as pLimit from 'p-limit';
+import * as path from 'path';
+import * as vscode from 'vscode';
+import { Disposable } from './dispose';
+
+export namespace Testing {
+	export const abcEditorContentChangeCommand = '_abcEditor.contentChange';
+	export const abcEditorTypeCommand = '_abcEditor.type';
+
+	export interface CustomEditorContentChangeEvent {
+		readonly content: string;
+		readonly source: vscode.Uri;
+	}
+}
+
+export class AbcTextEditorProvider implements vscode.CustomTextEditorProvider {
+
+	public static readonly viewType = 'testWebviewEditor.abc';
+
+	private activeEditor?: AbcEditor;
+
+	public constructor(
+		private readonly context: vscode.ExtensionContext,
+	) { }
+
+	public register(): vscode.Disposable {
+		const provider = vscode.window.registerCustomEditorProvider(AbcTextEditorProvider.viewType, this);
+
+		const commands: vscode.Disposable[] = [];
+		commands.push(vscode.commands.registerCommand(Testing.abcEditorTypeCommand, (content: string) => {
+			this.activeEditor?.testing_fakeInput(content);
+		}));
+
+		return vscode.Disposable.from(provider, ...commands);
+	}
+
+	public async resolveCustomTextEditor(document: vscode.TextDocument, panel: vscode.WebviewPanel) {
+		const editor = new AbcEditor(document, this.context.extensionPath, panel);
+
+		this.activeEditor = editor;
+
+		panel.onDidChangeViewState(({ webviewPanel }) => {
+			if (this.activeEditor === editor && !webviewPanel.active) {
+				this.activeEditor = undefined;
+			}
+			if (webviewPanel.active) {
+				this.activeEditor = editor;
+			}
+		});
+	}
+}
+
+class AbcEditor extends Disposable {
+
+	public readonly _onDispose = this._register(new vscode.EventEmitter<void>());
+	public readonly onDispose = this._onDispose.event;
+
+	private readonly limit = pLimit(1);
+	private syncedVersion: number = -1;
+	private currentWorkspaceEdit?: Thenable<void>;
+
+	constructor(
+		private readonly document: vscode.TextDocument,
+		private readonly _extensionPath: string,
+		private readonly panel: vscode.WebviewPanel,
+	) {
+		super();
+
+		panel.webview.options = {
+			enableScripts: true,
+		};
+		panel.webview.html = this.html;
+
+		this._register(vscode.workspace.onDidChangeTextDocument(e => {
+			if (e.document === this.document) {
+				this.update();
+			}
+		}));
+
+		this._register(panel.webview.onDidReceiveMessage(message => {
+			switch (message.type) {
+				case 'edit':
+					this.doEdit(message.value);
+					break;
+
+				case 'didChangeContent':
+					vscode.commands.executeCommand(Testing.abcEditorContentChangeCommand, {
+						content: message.value,
+						source: document.uri,
+					} as Testing.CustomEditorContentChangeEvent);
+					break;
+			}
+		}));
+
+		this._register(panel.onDidDispose(() => { this.dispose(); }));
+
+		this.update();
+	}
+
+	public testing_fakeInput(value: string) {
+		this.panel.webview.postMessage({
+			type: 'fakeInput',
+			value: value,
+		});
+	}
+
+	private async doEdit(value: string) {
+		const edit = new vscode.WorkspaceEdit();
+		edit.replace(this.document.uri, this.document.validateRange(new vscode.Range(new vscode.Position(0, 0), new vscode.Position(999999, 999999))), value);
+		this.limit(() => {
+			this.currentWorkspaceEdit = vscode.workspace.applyEdit(edit).then(() => {
+				this.syncedVersion = this.document.version;
+				this.currentWorkspaceEdit = undefined;
+			});
+			return this.currentWorkspaceEdit;
+		});
+	}
+
+	public dispose() {
+		if (this.isDisposed) {
+			return;
+		}
+
+		this._onDispose.fire();
+		super.dispose();
+	}
+
+	private get html() {
+		const contentRoot = path.join(this._extensionPath, 'customEditorMedia');
+		const scriptUri = vscode.Uri.file(path.join(contentRoot, 'textEditor.js'));
+		const nonce = Date.now() + '';
+		return /* html */`<!DOCTYPE html>
+			<html lang="en">
+			<head>
+				<meta charset="UTF-8">
+				<meta name="viewport" content="width=device-width, initial-scale=1.0">
+				<meta http-equiv="Content-Security-Policy" content="default-src 'none'; script-src 'nonce-${nonce}'; style-src 'unsafe-inline';">
+				<title>Document</title>
+			</head>
+			<body>
+				<textarea style="width: 300px; height: 300px;"></textarea>
+				<script nonce=${nonce} src="${this.panel.webview.asWebviewUri(scriptUri)}"></script>
+			</body>
+			</html>`;
+	}
+
+	public async update() {
+		await this.currentWorkspaceEdit;
+
+		if (this.isDisposed || this.syncedVersion >= this.document.version) {
+			return;
+		}
+
+		this.panel.webview.postMessage({
+			type: 'setValue',
+			value: this.document.getText(),
+		});
+		this.syncedVersion = this.document.version;
+	}
+}

extensions/vscode-custom-editor-tests/src/dispose.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+
+export function disposeAll(disposables: vscode.Disposable[]) {
+	while (disposables.length) {
+		const item = disposables.pop();
+		if (item) {
+			item.dispose();
+		}
+	}
+}
+
+export abstract class Disposable {
+	private _isDisposed = false;
+
+	protected _disposables: vscode.Disposable[] = [];
+
+	public dispose(): any {
+		if (this._isDisposed) {
+			return;
+		}
+		this._isDisposed = true;
+		disposeAll(this._disposables);
+	}
+
+	protected _register<T extends vscode.Disposable>(value: T): T {
+		if (this._isDisposed) {
+			value.dispose();
+		} else {
+			this._disposables.push(value);
+		}
+		return value;
+	}
+
+	protected get isDisposed() {
+		return this._isDisposed;
+	}
+}
\ No newline at end of file

extensions/vscode-custom-editor-tests/src/extension.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+import { AbcTextEditorProvider } from './customTextEditor';
+
+export function activate(context: vscode.ExtensionContext) {
+	context.subscriptions.push(new AbcTextEditorProvider(context).register());
+}

extensions/vscode-custom-editor-tests/src/test/customEditor.test.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as assert from 'assert';
+import * as fs from 'fs';
+import * as path from 'path';
+import * as vscode from 'vscode';
+import { Testing } from '../customTextEditor';
+import { closeAllEditors, delay, disposeAll, randomFilePath } from './utils';
+
+assert.ok(vscode.workspace.rootPath);
+const testWorkspaceRoot = vscode.Uri.file(path.join(vscode.workspace.rootPath!, 'customEditors'));
+
+const commands = Object.freeze({
+	open: 'vscode.open',
+	openWith: 'vscode.openWith',
+	save: 'workbench.action.files.save',
+	undo: 'undo',
+});
+
+async function writeRandomFile(options: { ext: string; contents: string; }): Promise<vscode.Uri> {
+	const fakeFile = randomFilePath({ root: testWorkspaceRoot, ext: options.ext });
+	await fs.promises.writeFile(fakeFile.fsPath, Buffer.from(options.contents));
+	return fakeFile;
+}
+
+const disposables: vscode.Disposable[] = [];
+function _register<T extends vscode.Disposable>(disposable: T) {
+	disposables.push(disposable);
+	return disposable;
+}
+
+class CustomEditorUpdateListener {
+
+	public static create() {
+		return _register(new CustomEditorUpdateListener());
+	}
+
+	private readonly commandSubscription: vscode.Disposable;
+
+	private readonly unconsumedResponses: Array<Testing.CustomEditorContentChangeEvent> = [];
+	private readonly callbackQueue: Array<(data: Testing.CustomEditorContentChangeEvent) => void> = [];
+
+	private constructor() {
+		this.commandSubscription = vscode.commands.registerCommand(Testing.abcEditorContentChangeCommand, (data: Testing.CustomEditorContentChangeEvent) => {
+			if (this.callbackQueue.length) {
+				const callback = this.callbackQueue.shift();
+				assert.ok(callback);
+				callback!(data);
+			} else {
+				this.unconsumedResponses.push(data);
+			}
+		});
+	}
+
+	dispose() {
+		this.commandSubscription.dispose();
+	}
+
+	async nextResponse(): Promise<Testing.CustomEditorContentChangeEvent> {
+		if (this.unconsumedResponses.length) {
+			return this.unconsumedResponses.shift()!;
+		}
+
+		return new Promise(resolve => {
+			this.callbackQueue.push(resolve);
+		});
+	}
+}
+
+
+suite('CustomEditor tests', () => {
+	setup(async () => {
+		await closeAllEditors();
+		await resetTestWorkspace();
+	});
+
+	teardown(async () => {
+		await closeAllEditors();
+		disposeAll(disposables);
+		await resetTestWorkspace();
+	});
+
+	test('Should load basic content from disk', async () => {
+		const startingContent = `load, init`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		await vscode.commands.executeCommand(commands.open, testDocument);
+
+		const { content } = await listener.nextResponse();
+		assert.equal(content, startingContent);
+	});
+
+	test('Should support basic edits', async () => {
+		const startingContent = `basic edit, init`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		await vscode.commands.executeCommand(commands.open, testDocument);
+		await listener.nextResponse();
+
+		const newContent = `basic edit test`;
+		await vscode.commands.executeCommand(Testing.abcEditorTypeCommand, newContent);
+		const { content } = await listener.nextResponse();
+		assert.equal(content, newContent);
+	});
+
+	test('Should support single undo', async () => {
+		const startingContent = `single undo, init`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		await vscode.commands.executeCommand(commands.open, testDocument);
+		await listener.nextResponse();
+
+		const newContent = `undo test`;
+		{
+			await vscode.commands.executeCommand(Testing.abcEditorTypeCommand, newContent);
+			const { content } = await listener.nextResponse();
+			assert.equal(content, newContent);
+		}
+		await delay(100);
+		{
+			await vscode.commands.executeCommand(commands.undo);
+			const { content } = await listener.nextResponse();
+			assert.equal(content, startingContent);
+		}
+	});
+
+	test('Should support multiple undo', async () => {
+		const startingContent = `multiple undo, init`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		await vscode.commands.executeCommand(commands.open, testDocument);
+		await listener.nextResponse();
+
+		const count = 10;
+
+		// Make edits
+		for (let i = 0; i < count; ++i) {
+			await vscode.commands.executeCommand(Testing.abcEditorTypeCommand, `${i}`);
+			const { content } = await listener.nextResponse();
+			assert.equal(`${i}`, content);
+		}
+
+		// Then undo them in order
+		for (let i = count - 1; i; --i) {
+			await delay(100);
+			await vscode.commands.executeCommand(commands.undo);
+			const { content } = await listener.nextResponse();
+			assert.equal(`${i - 1}`, content);
+		}
+
+		{
+			await delay(100);
+			await vscode.commands.executeCommand(commands.undo);
+			const { content } = await listener.nextResponse();
+			assert.equal(content, startingContent);
+		}
+	});
+
+	test('Should update custom editor on file move', async () => {
+		const startingContent = `file move, init`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		await vscode.commands.executeCommand(commands.open, testDocument);
+		await listener.nextResponse();
+
+		const newFileName = vscode.Uri.file(path.join(testWorkspaceRoot.fsPath, 'y.abc'));
+
+		const edit = new vscode.WorkspaceEdit();
+		edit.renameFile(testDocument, newFileName);
+
+		await vscode.workspace.applyEdit(edit);
+
+		const response = (await listener.nextResponse());
+		assert.equal(response.content, startingContent);
+		assert.equal(response.source.toString(), newFileName.toString());
+	});
+
+	test('Should support saving custom editors', async () => {
+		const startingContent = `save, init`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		await vscode.commands.executeCommand(commands.open, testDocument);
+		await listener.nextResponse();
+
+		const newContent = `save, new`;
+		{
+			await vscode.commands.executeCommand(Testing.abcEditorTypeCommand, newContent);
+			const { content } = await listener.nextResponse();
+			assert.equal(content, newContent);
+		}
+		{
+			await vscode.commands.executeCommand(commands.save);
+			const fileContent = (await fs.promises.readFile(testDocument.fsPath)).toString();
+			assert.equal(fileContent, newContent);
+		}
+	});
+
+	test('Should undo after saving custom editor', async () => {
+		const startingContent = `undo after save, init`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		await vscode.commands.executeCommand(commands.open, testDocument);
+		await listener.nextResponse();
+
+		const newContent = `undo after save, new`;
+		{
+			await vscode.commands.executeCommand(Testing.abcEditorTypeCommand, newContent);
+			const { content } = await listener.nextResponse();
+			assert.equal(content, newContent);
+		}
+		{
+			await vscode.commands.executeCommand(commands.save);
+			const fileContent = (await fs.promises.readFile(testDocument.fsPath)).toString();
+			assert.equal(fileContent, newContent);
+		}
+		await delay(100);
+		{
+			await vscode.commands.executeCommand(commands.undo);
+			const { content } = await listener.nextResponse();
+			assert.equal(content, startingContent);
+		}
+	});
+
+	test.skip('Should support untitled custom editors', async () => {
+		const listener = CustomEditorUpdateListener.create();
+
+		const untitledFile = randomFilePath({ root: testWorkspaceRoot, ext: '.abc' }).with({ scheme: 'untitled' });
+
+		await vscode.commands.executeCommand(commands.open, untitledFile);
+		assert.equal((await listener.nextResponse()).content, '');
+
+		await vscode.commands.executeCommand(Testing.abcEditorTypeCommand, `123`);
+		assert.equal((await listener.nextResponse()).content, '123');
+
+		await vscode.commands.executeCommand(commands.save);
+		const content = await fs.promises.readFile(untitledFile.fsPath);
+		assert.equal(content.toString(), '123');
+	});
+
+	test.skip('When switching away from a non-default custom editors and then back, we should continue using the non-default editor', async () => {
+		const startingContent = `switch, init`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		{
+			await vscode.commands.executeCommand(commands.open, testDocument, { preview: false });
+			const { content } = await listener.nextResponse();
+			assert.strictEqual(content, startingContent.toString());
+			assert.ok(!vscode.window.activeTextEditor);
+		}
+
+		// Switch to non-default editor
+		await vscode.commands.executeCommand(commands.openWith, testDocument, 'default', { preview: false });
+		assert.strictEqual(vscode.window.activeTextEditor!?.document.uri.toString(), testDocument.toString());
+
+		// Then open a new document (hiding existing one)
+		const otherFile = vscode.Uri.file(path.join(testWorkspaceRoot.fsPath, 'other.json'));
+		await vscode.commands.executeCommand(commands.open, otherFile);
+		assert.strictEqual(vscode.window.activeTextEditor!?.document.uri.toString(), otherFile.toString());
+
+		// And then back
+		await vscode.commands.executeCommand('workbench.action.navigateBack');
+		await vscode.commands.executeCommand('workbench.action.navigateBack');
+
+		// Make sure we have the file on as text
+		assert.ok(vscode.window.activeTextEditor);
+		assert.strictEqual(vscode.window.activeTextEditor!?.document.uri.toString(), testDocument.toString());
+	});
+
+	test('Should release the text document when the editor is closed', async () => {
+		const startingContent = `release document init,`;
+		const testDocument = await writeRandomFile({ ext: '.abc', contents: startingContent });
+
+		const listener = CustomEditorUpdateListener.create();
+
+		await vscode.commands.executeCommand(commands.open, testDocument);
+		await listener.nextResponse();
+
+		const doc = vscode.workspace.textDocuments.find(x => x.uri.toString() === testDocument.toString());
+		assert.ok(doc);
+		assert.ok(!doc!.isClosed);
+
+		await closeAllEditors();
+		await delay(100);
+		assert.ok(doc!.isClosed);
+	});
+});
+
+async function resetTestWorkspace() {
+	try {
+		await vscode.workspace.fs.delete(testWorkspaceRoot, { recursive: true });
+	} catch {
+		// ok if file doesn't exist
+	}
+	await vscode.workspace.fs.createDirectory(testWorkspaceRoot);
+}

extensions/vscode-custom-editor-tests/src/test/index.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+const path = require('path');
+const testRunner = require('vscode/lib/testrunner');
+
+const suite = 'Custom Editor Tests';
+
+const options: any = {
+	ui: 'tdd',
+	useColors: (!process.env.BUILD_ARTIFACTSTAGINGDIRECTORY && process.platform !== 'win32'),
+	timeout: 6000000
+};
+
+if (process.env.BUILD_ARTIFACTSTAGINGDIRECTORY) {
+	options.reporter = 'mocha-multi-reporters';
+	options.reporterOptions = {
+		reporterEnabled: 'spec, mocha-junit-reporter',
+		mochaJunitReporterReporterOptions: {
+			testsuitesTitle: `${suite} ${process.platform}`,
+			mochaFile: path.join(process.env.BUILD_ARTIFACTSTAGINGDIRECTORY, `test-results/${process.platform}-${suite.toLowerCase().replace(/[^\w]/g, '-')}-results.xml`)
+		}
+	};
+}
+
+testRunner.configure(options);
+
+export = testRunner;

extensions/vscode-custom-editor-tests/src/test/utils.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import * as vscode from 'vscode';
+
+export function randomFilePath(args: { root: vscode.Uri, ext: string }): vscode.Uri {
+	const fileName = Math.random().toString(36).replace(/[^a-z]+/g, '').substr(0, 10);
+	return (vscode.Uri as any).joinPath(args.root, fileName + args.ext);
+}
+
+export function closeAllEditors(): Thenable<any> {
+	return vscode.commands.executeCommand('workbench.action.closeAllEditors');
+}
+
+export function disposeAll(disposables: vscode.Disposable[]) {
+	vscode.Disposable.from(...disposables).dispose();
+}
+
+export function delay(ms: number) {
+	return new Promise(resolve => setTimeout(resolve, ms));
+}

extensions/vscode-custom-editor-tests/src/typings/ref.d.ts

+/*---------------------------------------------------------------------------------------------
+ *  Copyright (c) Microsoft Corporation. All rights reserved.
+ *  Licensed under the MIT License. See License.txt in the project root for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+/// <reference path="../../../../src/vs/vscode.d.ts" />
+/// <reference types='@types/node'/>
+

extensions/vscode-custom-editor-tests/tsconfig.json

+{
+	"extends": "../shared.tsconfig.json",
+	"compilerOptions": {
+		"outDir": "./out"
+	},
+	"include": [
+		"src/**/*"
+	]
+}
\ No newline at end of file

scripts/test-integration.bat

@@ -23,6 +23,7 @@ if "%INTEGRATION_TEST_ELECTRON_PATH%"=="" (
 					compile-extension:vscode-colorize-tests^
 					compile-extension:markdown-language-features^
 					compile-extension:typescript-language-features^
+					compile-extension:vscode-custom-editor-tests^
 					compile-extension:vscode-notebook-tests^
 					compile-extension:emmet^
 					compile-extension:css-language-features-server^

scripts/test-integration.sh

@@ -27,6 +27,7 @@ else
 	# and the build bundles extensions into .build webpacked
 	yarn gulp 	compile-extension:vscode-api-tests \
 				compile-extension:vscode-colorize-tests \
+				compile-extension:vscode-custom-editor-tests \
 				compile-extension:vscode-notebook-tests \
 				compile-extension:markdown-language-features \
 				compile-extension:typescript-language-features \