| Index: mojo/public/dart/third_party/test/test/frontend/expect_async_test.dart
|
| diff --git a/mojo/public/dart/third_party/test/test/frontend/expect_async_test.dart b/mojo/public/dart/third_party/test/test/frontend/expect_async_test.dart
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| new file mode 100644
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| index 0000000000000000000000000000000000000000..2c118f8efabf25e2311b3afbe936598ca5ecd927
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| --- /dev/null
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| +++ b/mojo/public/dart/third_party/test/test/frontend/expect_async_test.dart
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| @@ -0,0 +1,332 @@
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| +// Copyright (c) 2015, the Dart project authors. Please see the AUTHORS file
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| +// for details. All rights reserved. Use of this source code is governed by a
|
| +// BSD-style license that can be found in the LICENSE file.
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| +
|
| +import 'dart:async';
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| +
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| +import 'package:test/src/backend/state.dart';
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| +import 'package:test/test.dart';
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| +
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| +import '../utils.dart';
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| +
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| +void main() {
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| + group("supports a function with this many arguments:", () {
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| + test("0", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync(() {
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| + callbackRun = true;
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| + })();
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| +
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| + test("1", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync((arg) {
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| + expect(arg, equals(1));
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| + callbackRun = true;
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| + })(1);
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| +
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| + test("2", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync((arg1, arg2) {
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| + expect(arg1, equals(1));
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| + expect(arg2, equals(2));
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| + callbackRun = true;
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| + })(1, 2);
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| +
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| + test("3", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync((arg1, arg2, arg3) {
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| + expect(arg1, equals(1));
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| + expect(arg2, equals(2));
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| + expect(arg3, equals(3));
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| + callbackRun = true;
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| + })(1, 2, 3);
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| +
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| + test("4", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync((arg1, arg2, arg3, arg4) {
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| + expect(arg1, equals(1));
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| + expect(arg2, equals(2));
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| + expect(arg3, equals(3));
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| + expect(arg4, equals(4));
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| + callbackRun = true;
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| + })(1, 2, 3, 4);
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| +
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| + test("5", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync((arg1, arg2, arg3, arg4, arg5) {
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| + expect(arg1, equals(1));
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| + expect(arg2, equals(2));
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| + expect(arg3, equals(3));
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| + expect(arg4, equals(4));
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| + expect(arg5, equals(5));
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| + callbackRun = true;
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| + })(1, 2, 3, 4, 5);
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| +
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| + test("6", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync((arg1, arg2, arg3, arg4, arg5, arg6) {
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| + expect(arg1, equals(1));
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| + expect(arg2, equals(2));
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| + expect(arg3, equals(3));
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| + expect(arg4, equals(4));
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| + expect(arg5, equals(5));
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| + expect(arg6, equals(6));
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| + callbackRun = true;
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| + })(1, 2, 3, 4, 5, 6);
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| + });
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| +
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| + group("with optional arguments", () {
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| + test("allows them to be passed", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync(([arg = 1]) {
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| + expect(arg, equals(2));
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| + callbackRun = true;
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| + })(2);
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| +
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| + test("allows them not to be passed", () async {
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| + var callbackRun = false;
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| + var liveTest = await runTestBody(() {
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| + expectAsync(([arg = 1]) {
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| + expect(arg, equals(1));
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| + callbackRun = true;
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| + })();
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| + });
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| +
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| + expectTestPassed(liveTest);
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| + expect(callbackRun, isTrue);
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| + });
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| + });
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| +
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| + test("doesn't support a function with 7 arguments", () {
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| + expect(() => expectAsync((_1, _2, _3, _4, _5, _6, _7) {}),
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| + throwsArgumentError);
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| + });
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| +
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| + group("by default", () {
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| + test("won't allow the test to complete until it's called", () {
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| + return expectTestBlocks(
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| + () => expectAsync(() {}),
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| + (callback) => callback());
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| + });
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| +
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| + test("may only be called once", () async {
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| + var liveTest = await runTestBody(() {
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| + var callback = expectAsync(() {});
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| + callback();
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| + callback();
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| + });
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| +
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| + expectTestFailed(liveTest,
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| + "Callback called more times than expected (1).");
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| + });
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| + });
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| +
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| + group("with count", () {
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| + test("won't allow the test to complete until it's called at least that "
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| + "many times", () async {
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| + var liveTest;
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| + var future;
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| + liveTest = createTest(() {
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| + var callback = expectAsync(() {}, count: 3);
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| +
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| + future = new Future.sync(() async {
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| + await pumpEventQueue();
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| + expect(liveTest.state.status, equals(Status.running));
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| + callback();
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| +
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| + await pumpEventQueue();
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| + expect(liveTest.state.status, equals(Status.running));
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| + callback();
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| +
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| + await pumpEventQueue();
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| + expect(liveTest.state.status, equals(Status.running));
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| + callback();
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| + });
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| + });
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| +
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| + await liveTest.run();
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| + expectTestPassed(liveTest);
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| + // Ensure that the outer test doesn't complete until the inner future
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| + // completes.
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| + await future;
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| + });
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| +
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| + test("will throw an error if it's called more than that many times", () async {
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| + var liveTest = await runTestBody(() {
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| + var callback = expectAsync(() {}, count: 3);
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| + callback();
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| + callback();
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| + callback();
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| + callback();
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| + });
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| +
|
| + expectTestFailed(
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| + liveTest, "Callback called more times than expected (3).");
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| + });
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| +
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| + group("0,", () {
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| + test("won't block the test's completion", () {
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| + expectAsync(() {}, count: 0);
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| + });
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| +
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| + test("will throw an error if it's ever called", () async {
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| + var liveTest = await runTestBody(() {
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| + expectAsync(() {}, count: 0)();
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| + });
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| +
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| + expectTestFailed(
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| + liveTest, "Callback called more times than expected (0).");
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| + });
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| + });
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| + });
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| +
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| + group("with max", () {
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| + test("will allow the callback to be called that many times", () {
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| + var callback = expectAsync(() {}, max: 3);
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| + callback();
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| + callback();
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| + callback();
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| + });
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| +
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| + test("will allow the callback to be called fewer than that many times", () {
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| + var callback = expectAsync(() {}, max: 3);
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| + callback();
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| + });
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| +
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| + test("will throw an error if it's called more than that many times",
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| + () async {
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| + var liveTest = await runTestBody(() {
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| + var callback = expectAsync(() {}, max: 3);
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| + callback();
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| + callback();
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| + callback();
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| + callback();
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| + });
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| +
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| + expectTestFailed(
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| + liveTest, "Callback called more times than expected (3).");
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| + });
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| +
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| + test("-1, will allow the callback to be called any number of times", () {
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| + var callback = expectAsync(() {}, max: -1);
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| + for (var i = 0; i < 20; i++) {
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| + callback();
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| + }
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| + });
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| + });
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| +
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| + test("will throw an error if max is less than count", () {
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| + expect(() => expectAsync(() {}, max: 1, count: 2),
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| + throwsArgumentError);
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| + });
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| +
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| + group("expectAsyncUntil()", () {
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| + test("won't allow the test to complete until isDone returns true",
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| + () async {
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| + var liveTest;
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| + var future;
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| + liveTest = createTest(() {
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| + var done = false;
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| + var callback = expectAsyncUntil(() {}, () => done);
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| +
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| + future = new Future.sync(() async {
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| + await pumpEventQueue();
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| + expect(liveTest.state.status, equals(Status.running));
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| + callback();
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| + await pumpEventQueue();
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| + expect(liveTest.state.status, equals(Status.running));
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| + done = true;
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| + callback();
|
| + });
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| + });
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| +
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| + await liveTest.run();
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| + expectTestPassed(liveTest);
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| + // Ensure that the outer test doesn't complete until the inner future
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| + // completes.
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| + await future;
|
| + });
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| +
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| + test("doesn't call isDone until after the callback is called", () {
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| + var callbackRun = false;
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| + expectAsyncUntil(() => callbackRun = true, () {
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| + expect(callbackRun, isTrue);
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| + return true;
|
| + })();
|
| + });
|
| + });
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| +
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| + group("with errors", () {
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| + test("reports them to the current test", () async {
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| + var liveTest = await runTestBody(() {
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| + expectAsync(() => throw new TestFailure('oh no'))();
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| + });
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| +
|
| + expectTestFailed(liveTest, 'oh no');
|
| + });
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| +
|
| + test("swallows them and returns null", () async {
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| + var returnValue;
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| + var caughtError = false;
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| + var liveTest = await runTestBody(() {
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| + try {
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| + returnValue = expectAsync(() => throw new TestFailure('oh no'))();
|
| + } on TestFailure catch (_) {
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| + caughtError = true;
|
| + }
|
| + });
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| +
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| + expectTestFailed(liveTest, 'oh no');
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| + expect(returnValue, isNull);
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| + expect(caughtError, isFalse);
|
| + });
|
| + });
|
| +}
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|
|