Update

helloworld-test-sample/src/test/runTest.ts

@@ -0,0 +1,25 @@
+import * as path from 'path';
+
+import { runTests } from 'vscode-test';
+
+async function go() {
+	try {
+		const extensionPath = path.resolve(__dirname, '../../');
+		const testRunnerPath = path.resolve(__dirname, './suite');
+		const testWorkspace = path.resolve(__dirname, '../../test/suite/fixture');
+
+		await runTests({
+			// The folder containing the Extension Manifest package.json
+			extensionPath,
+			// The path to test runner
+			testRunnerPath,
+			// The workspace to open on starting up VS Code
+			testWorkspace
+		});
+	} catch (err) {
+		console.error('Failed to run tests');
+		process.exit(1);
+	}
+}
+
+go();

helloworld-test-sample/src/test/suite/extension.test.ts

@@ -0,0 +1,18 @@
+import * as assert from 'assert';
+import { before } from 'mocha';
+
+// You can import and use all API from the 'vscode' module
+// as well as import your extension to test it
+import * as vscode from 'vscode';
+// import * as myExtension from '../extension';
+
+suite('Extension Test Suite', () => {
+	before(() => {
+		vscode.window.showInformationMessage('Start all tests.');
+	});
+
+	test('Sample test', () => {
+		assert.equal(-1, [1, 2, 3].indexOf(5));
+		assert.equal(-1, [1, 2, 3].indexOf(0));
+	});
+});

helloworld-test-sample/src/test/suite/index.ts

@@ -0,0 +1,31 @@
+import * as path from 'path';
+import * as Mocha from 'mocha';
+import * as glob from 'glob';
+
+export function run(testsRoot: string, cb: (error: any, failures?: number) => void): void {
+	// Create the mocha test
+	const mocha = new Mocha({
+		ui: 'tdd',
+	});
+	mocha.useColors(true);
+
+	glob('**/**.test.js', { cwd: testsRoot }, (err, files) => {
+		if (err) {
+			return cb(err);
+		}
+
+		// Add files to the test suite
+		files.forEach(f => mocha.addFile(path.resolve(testsRoot, f)));
+
+		try {
+			// Run the mocha test
+			mocha
+				.run(failures => {
+					cb(null, failures);
+				});
+
+		} catch (err) {
+			cb(err);
+		}
+	});
+}