| // Copyright (c) 2014, the Dart project authors. Please see the AUTHORS file |
| // 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. |
| |
| import 'dart:async'; |
| |
| import 'package:test/test.dart'; |
| |
| import '../../utils.dart'; |
| |
| void main() { |
| group('synchronous', () { |
| test('passes with an expected print', () { |
| expect(() => print('Hello, world!'), prints('Hello, world!\n')); |
| }); |
| |
| test('combines multiple prints', () { |
| expect(() { |
| print('Hello'); |
| print('World!'); |
| }, prints('Hello\nWorld!\n')); |
| }); |
| |
| test('works with a Matcher', () { |
| expect(() => print('Hello, world!'), prints(contains('Hello'))); |
| }); |
| |
| test('describes a failure nicely', () async { |
| void local() => print('Hello, world!'); |
| var liveTest = await runTestBody(() { |
| expect(local, prints('Goodbye, world!\n')); |
| }); |
| |
| expectTestFailed( |
| liveTest, |
| allOf([ |
| startsWith("Expected: prints 'Goodbye, world!\\n'\n" |
| " ''\n" |
| ' Actual: <'), |
| endsWith('>\n' |
| " Which: printed 'Hello, world!\\n'\n" |
| " ''\n" |
| ' which is different.\n' |
| ' Expected: Goodbye, w ...\n' |
| ' Actual: Hello, wor ...\n' |
| ' ^\n' |
| ' Differ at offset 0\n') |
| ])); |
| }); |
| |
| test('describes a failure with a non-descriptive Matcher nicely', () async { |
| void local() => print('Hello, world!'); |
| var liveTest = await runTestBody(() { |
| expect(local, prints(contains('Goodbye'))); |
| }); |
| |
| expectTestFailed( |
| liveTest, |
| allOf([ |
| startsWith("Expected: prints contains 'Goodbye'\n" |
| ' Actual: <'), |
| endsWith('>\n' |
| " Which: printed 'Hello, world!\\n'\n" |
| " ''\n") |
| ])); |
| }); |
| |
| test('describes a failure with no text nicely', () async { |
| void local() {} |
| var liveTest = await runTestBody(() { |
| expect(local, prints(contains('Goodbye'))); |
| }); |
| |
| expectTestFailed( |
| liveTest, |
| allOf([ |
| startsWith("Expected: prints contains 'Goodbye'\n" |
| ' Actual: <'), |
| endsWith('>\n' |
| ' Which: printed nothing\n') |
| ])); |
| }); |
| |
| test('with a non-function', () async { |
| var liveTest = await runTestBody(() { |
| expect(10, prints(contains('Goodbye'))); |
| }); |
| |
| expectTestFailed( |
| liveTest, |
| "Expected: prints contains 'Goodbye'\n" |
| ' Actual: <10>\n' |
| ' Which: was not a unary Function\n'); |
| }); |
| }); |
| |
| group('asynchronous', () { |
| test('passes with an expected print', () { |
| expect(() => Future(() => print('Hello, world!')), |
| prints('Hello, world!\n')); |
| }); |
| |
| test('combines multiple prints', () { |
| expect( |
| () => Future(() { |
| print('Hello'); |
| print('World!'); |
| }), |
| prints('Hello\nWorld!\n')); |
| }); |
| |
| test('works with a Matcher', () { |
| expect(() => Future(() => print('Hello, world!')), |
| prints(contains('Hello'))); |
| }); |
| |
| test('describes a failure nicely', () async { |
| void local() => Future(() => print('Hello, world!')); |
| var liveTest = await runTestBody(() { |
| expect(local, prints('Goodbye, world!\n')); |
| }); |
| |
| expectTestFailed( |
| liveTest, |
| allOf([ |
| startsWith("Expected: prints 'Goodbye, world!\\n'\n" |
| " ''\n" |
| ' Actual: <'), |
| contains('>\n' |
| " Which: printed 'Hello, world!\\n'\n" |
| " ''\n" |
| ' which is different.\n' |
| ' Expected: Goodbye, w ...\n' |
| ' Actual: Hello, wor ...\n' |
| ' ^\n' |
| ' Differ at offset 0') |
| ])); |
| }); |
| |
| test('describes a failure with a non-descriptive Matcher nicely', () async { |
| void local() => Future(() => print('Hello, world!')); |
| var liveTest = await runTestBody(() { |
| expect(local, prints(contains('Goodbye'))); |
| }); |
| |
| expectTestFailed( |
| liveTest, |
| allOf([ |
| startsWith("Expected: prints contains 'Goodbye'\n" |
| ' Actual: <'), |
| contains('>\n' |
| " Which: printed 'Hello, world!\\n'\n" |
| " ''") |
| ])); |
| }); |
| |
| test('describes a failure with no text nicely', () async { |
| void local() => Future.value(); |
| var liveTest = await runTestBody(() { |
| expect(local, prints(contains('Goodbye'))); |
| }); |
| |
| expectTestFailed( |
| liveTest, |
| allOf([ |
| startsWith("Expected: prints contains 'Goodbye'\n" |
| ' Actual: <'), |
| contains('>\n' |
| ' Which: printed nothing') |
| ])); |
| }); |
| |
| test("won't let the test end until the Future completes", () { |
| return expectTestBlocks(() { |
| var completer = Completer(); |
| expect(() => completer.future, prints(isEmpty)); |
| return completer; |
| }, (completer) => completer.complete()); |
| }); |
| |
| test("blocks expectLater's Future", () async { |
| var completer = Completer(); |
| var fired = false; |
| |
| unawaited(expectLater(() { |
| scheduleMicrotask(() => print('hello!')); |
| return completer.future; |
| }, prints('hello!\n')) |
| .then((_) { |
| fired = true; |
| })); |
| |
| await pumpEventQueue(); |
| expect(fired, isFalse); |
| |
| completer.complete(); |
| await pumpEventQueue(); |
| expect(fired, isTrue); |
| }); |
| }); |
| } |