tests - close editors from debug API tests (microsoft#254646)

Author: bpasero

extensions/vscode-api-tests/src/singlefolder-tests/debug.test.ts

@@ -6,11 +6,14 @@
 import * as assert from 'assert';
 import { basename } from 'path';
 import { commands, debug, Disposable, FunctionBreakpoint, window, workspace } from 'vscode';
-import { assertNoRpc, createRandomFile, disposeAll } from '../utils';
+import { assertNoRpc, closeAllEditors, createRandomFile, disposeAll } from '../utils';
 
 suite('vscode API - debug', function () {
 
-	teardown(assertNoRpc);
+	teardown(async function () {
+		assertNoRpc();
+		await closeAllEditors();
+	});
 
 	test('breakpoints are available before accessing debug extension API', async () => {
 		const file = await createRandomFile(undefined, undefined, '.js');