chore(vscode): update to 1.53.2

These conflicts will be resolved in the following commits. We do it this way so
that PR review is possible.

lib/vscode/test/unit/electron/index.js

@@ -3,6 +3,10 @@
  *  Licensed under the MIT License. See License.txt in the project root for license information.
  *--------------------------------------------------------------------------------------------*/
 
+// mocha disables running through electron by default. Note that this must
+// come before any mocha imports.
+process.env.MOCHA_COLORS = '1';
+
 const { app, BrowserWindow, ipcMain } = require('electron');
 const { tmpdir } = require('os');
 const { join } = require('path');
@@ -11,13 +15,13 @@ const mocha = require('mocha');
 const events = require('events');
 const MochaJUnitReporter = require('mocha-junit-reporter');
 const url = require('url');
+const createStatsCollector = require('mocha/lib/stats-collector');
+const FullJsonStreamReporter = require('../fullJsonStreamReporter');
 
 // Disable render process reuse, we still have
 // non-context aware native modules in the renderer.
 app.allowRendererProcessReuse = false;
 
-const defaultReporterName = process.platform === 'win32' ? 'list' : 'spec';
-
 const optimist = require('optimist')
 	.describe('grep', 'only run tests matching <pattern>').alias('grep', 'g').alias('grep', 'f').string('grep')
 	.describe('run', 'only run tests from <file>').string('run')
@@ -25,7 +29,7 @@ const optimist = require('optimist')
 	.describe('build', 'run with build output (out-build)').boolean('build')
 	.describe('coverage', 'generate coverage report').boolean('coverage')
 	.describe('debug', 'open dev tools, keep window open, reuse app data').string('debug')
-	.describe('reporter', 'the mocha reporter').string('reporter').default('reporter', defaultReporterName)
+	.describe('reporter', 'the mocha reporter').string('reporter').default('reporter', 'spec')
 	.describe('reporter-options', 'the mocha reporter options').string('reporter-options').default('reporter-options', '')
 	.describe('tfs').string('tfs')
 	.describe('help', 'show the help').alias('help', 'h');
@@ -47,10 +51,10 @@ function deserializeSuite(suite) {
 		suites: suite.suites,
 		tests: suite.tests,
 		title: suite.title,
+		titlePath: () => suite.titlePath,
 		fullTitle: () => suite.fullTitle,
 		timeout: () => suite.timeout,
 		retries: () => suite.retries,
-		enableTimeouts: () => suite.enableTimeouts,
 		slow: () => suite.slow,
 		bail: () => suite.bail
 	};
@@ -59,6 +63,7 @@ function deserializeSuite(suite) {
 function deserializeRunnable(runnable) {
 	return {
 		title: runnable.title,
+		titlePath: () => runnable.titlePath,
 		fullTitle: () => runnable.fullTitle,
 		async: runnable.async,
 		slow: () => runnable.slow,
@@ -68,6 +73,15 @@ function deserializeRunnable(runnable) {
 	};
 }
 
+function importMochaReporter(name) {
+	if (name === 'full-json-stream') {
+		return FullJsonStreamReporter;
+	}
+
+	const reporterPath = path.join(path.dirname(require.resolve('mocha')), 'lib', 'reporters', name);
+	return require(reporterPath);
+}
+
 function deserializeError(err) {
 	const inspect = err.inspect;
 	err.inspect = () => inspect;
@@ -138,6 +152,7 @@ app.on('ready', () => {
 	win.loadURL(url.format({ pathname: path.join(__dirname, 'renderer.html'), protocol: 'file:', slashes: true }));
 
 	const runner = new IPCRunner();
+	createStatsCollector(runner);
 
 	if (argv.tfs) {
 		new mocha.reporters.Spec(runner);
@@ -148,11 +163,19 @@ app.on('ready', () => {
 			}
 		});
 	} else {
-		const reporterPath = path.join(path.dirname(require.resolve('mocha')), 'lib', 'reporters', argv.reporter);
-		let Reporter;
+		// mocha patches symbols to use windows escape codes, but it seems like
+		// Electron mangles these in its output.
+		if (process.platform === 'win32') {
+			Object.assign(importMochaReporter('base').symbols, {
+				ok: '+',
+				err: 'X',
+				dot: '.',
+			});
+		}
 
+		let Reporter;
 		try {
-			Reporter = require(reporterPath);
+			Reporter = importMochaReporter(argv.reporter);
 		} catch (err) {
 			try {
 				Reporter = require(argv.reporter);

lib/vscode/test/unit/electron/renderer.html

@@ -35,7 +35,8 @@
 
 		mocha.setup({
 			ui: 'tdd',
-			timeout: 5000
+			timeout: 5000,
+			forbidOnly: typeof process.env['BUILD_ARTIFACTSTAGINGDIRECTORY'] === 'string' // disallow .only() when running on build machine
 		});
 		require('./renderer');
 	</script>

lib/vscode/test/unit/electron/renderer.js

@@ -5,6 +5,60 @@
 
 /*eslint-env mocha*/
 
+(function() {
+	const fs = require('fs');
+	const originals = {};
+	let logging = false;
+	let withStacks = false;
+
+	self.beginLoggingFS = (_withStacks) => {
+		logging = true;
+		withStacks = _withStacks || false;
+	};
+	self.endLoggingFS = () => {
+		logging = false;
+		withStacks = false;
+	};
+
+	function createSpy(element, cnt) {
+		return function(...args) {
+			if (logging) {
+				console.log(`calling ${element}: ` + args.slice(0, cnt).join(',') + (withStacks ? (`\n` + new Error().stack.split('\n').slice(2).join('\n')) : ''));
+			}
+			return originals[element].call(this, ...args);
+		};
+	}
+
+	function intercept(element, cnt) {
+		originals[element] = fs[element];
+		fs[element] = createSpy(element, cnt);
+	}
+
+	[
+		['realpathSync', 1],
+		['readFileSync', 1],
+		['openSync', 3],
+		['readSync', 1],
+		['closeSync', 1],
+		['readFile', 2],
+		['mkdir', 1],
+		['lstat', 1],
+		['stat', 1],
+		['watch', 1],
+		['readdir', 1],
+		['access', 2],
+		['open', 2],
+		['write', 1],
+		['fdatasync', 1],
+		['close', 1],
+		['read', 1],
+		['unlink', 1],
+		['rmdir', 1],
+	].forEach((element) => {
+		intercept(element[0], element[1]);
+	})
+})();
+
 const { ipcRenderer } = require('electron');
 const assert = require('assert');
 const path = require('path');
@@ -135,9 +189,9 @@ function serializeSuite(suite) {
 		tests: suite.tests.map(serializeRunnable),
 		title: suite.title,
 		fullTitle: suite.fullTitle(),
+		titlePath: suite.titlePath(),
 		timeout: suite.timeout(),
 		retries: suite.retries(),
-		enableTimeouts: suite.enableTimeouts(),
 		slow: suite.slow(),
 		bail: suite.bail()
 	};
@@ -147,6 +201,7 @@ function serializeRunnable(runnable) {
 	return {
 		title: runnable.title,
 		fullTitle: runnable.fullTitle(),
+		titlePath: runnable.titlePath(),
 		async: runnable.async,
 		slow: runnable.slow(),
 		speed: runnable.speed,