| // Copyright (c) 2011, 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. |
| |
| /// @assertion Stream<T> handleError(Function onError, {bool test(error)}) |
| /// If test is omitted, every error is considered matching. |
| /// @description Checks that if [test] is omitted, every error is intercepted |
| /// @author a.semenov@unipro.ru |
| |
| library handleError_A02_t01; |
| |
| import "dart:async"; |
| import "../../../Utils/expect.dart"; |
| |
| void check(Stream s, List expectedData, List interceptedErrors) { |
| List actualData = []; |
| List actualErrors = []; |
| List actualHandledErrors = []; |
| asyncStart(); |
| s.handleError((error) => actualHandledErrors.add(error)).listen((data) { |
| actualData.add(data); |
| }, onError: (error) { |
| actualErrors.add(error); |
| }, onDone: () { |
| Expect.listEquals(expectedData, actualData); |
| Expect.listEquals(interceptedErrors, actualHandledErrors); |
| Expect.listEquals([], actualErrors); |
| asyncEnd(); |
| }); |
| } |
| |
| void test(CreateStreamWithErrorsFunction create) { |
| check(create([], defaultValue: 42), [], []); |
| check(create([], isError: (x) => true, defaultValue: 42), [], []); |
| |
| check(create([1, 2, 3, 4], defaultValue: 42), [1, 2, 3, 4], []); |
| check(create([1, 2, 3, 4], isError: (x) => true, defaultValue: 42), |
| [], [1, 2, 3, 4]); |
| check(create([1, 2, 3, 4], isError: (x) => x.isEven, defaultValue: 42), |
| [1, 3], [2, 4]); |
| check(create([null, "2", -3, 4.0, []], isError: (x) => x is num, |
| defaultValue: 42), [null, "2", []], [-3, 4.0]); |
| } |