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mockito_test_2.dart
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mockito_test_2.dart
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// Copyright 2016 Dart Mockito authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
import 'package:mockito/mockito.dart';
import 'package:mockito/src/mock.dart'
show resetMockitoState, throwOnMissingStub;
import 'package:test/test.dart';
expectFail(String expectedMessage, expectedToFail()) {
try {
expectedToFail();
fail("It was expected to fail!");
} catch (e) {
if (!(e is TestFailure)) {
throw e;
} else {
if (expectedMessage != e.message) {
throw new TestFailure("Failed, but with wrong message: ${e.message}");
}
}
}
}
typedef void UnaryFunction();
class HasCallback {
final UnaryFunction _fooCallback;
final UnaryFunction _barCallback;
HasCallback(this._fooCallback, this._barCallback);
void foo() {
// Do something
_fooCallback();
}
void bar() {
// Do something
_barCallback();
}
}
class FunctionProvider {
void abc() {
print('abc is called');
}
void xyz() {
print('xyz is called');
}
}
HasCallback toBeTested(FunctionProvider funcProvider) {
// Do something
return new HasCallback(funcProvider.abc, funcProvider.xyz);
}
class UnaryFunctionClass {
void call() {}
}
class MockFunctionProvider extends Mock implements FunctionProvider {}
class MockUnaryFunctionClass extends Mock implements UnaryFunctionClass {}
void main() {
tearDown(() {
// In some of the tests that expect an Error to be thrown, Mockito's
// global state can become invalid. Reset it.
resetMockitoState();
});
test('obj.foo is not equal to obj.foo()', () {
var funcProvider = new MockFunctionProvider();
expect(funcProvider.foo, null);
verify(funcProvider.foo);
funcProvider.foo();
verify(funcProvider.foo());
});
test('using obj.foo as first class citizen is not possible now', () {
expectFail('The method \'call\' was called on null', () {
try {
var funcProvider = new MockFunctionProvider();
var hasCallback = toBeTested(funcProvider);
hasCallback.foo();
verify(funcProvider.abc());
hasCallback.bar();
verify(funcProvider.xyz());
} catch (_) {
throw new TestFailure('The method \'call\' was called on null');
}
});
});
test('to test member function as fisrt class citizen, '
'need to write more code',
() {
var funcProvider = new MockFunctionProvider();
var abc = new MockUnaryFunctionClass();
var xyz = new MockUnaryFunctionClass();
when(funcProvider.abc).thenReturn(abc);
when(funcProvider.xyz).thenReturn(xyz);
var hasCallback = toBeTested(funcProvider);
hasCallback.foo();
verify(abc.call());
hasCallback.bar();
verify(xyz.call());
});
}