use_test_throws_matchers
Use throwsA matcher instead of fail().
此规则自 Dart 2.14 版本起可用。
详情
#Use the throwsA
matcher instead of try-catch with fail()
.
BAD:
dart
// sync code
try {
someSyncFunctionThatThrows();
fail('expected Error');
} on Error catch (error) {
expect(error.message, contains('some message'));
}
// async code
try {
await someAsyncFunctionThatThrows();
fail('expected Error');
} on Error catch (error) {
expect(error.message, contains('some message'));
}
GOOD:
dart
// sync code
expect(
() => someSyncFunctionThatThrows(),
throwsA(isA<Error>().having((Error error) => error.message, 'message', contains('some message'))),
);
// async code
await expectLater(
() => someAsyncFunctionThatThrows(),
throwsA(isA<Error>().having((Error error) => error.message, 'message', contains('some message'))),
);
使用方法
#要启用 use_test_throws_matchers
规则,请在你的 analysis_options.yaml
文件中,在 linter > rules 下添加 use_test_throws_matchers
:
analysis_options.yaml
yaml
linter:
rules:
- use_test_throws_matchers
除非另有说明,否则本网站上的文档反映的是 Dart 3.6.0。页面最后更新于 2025-02-05。 查看源代码 或 报告问题.