Question

我想测试我在数据库中插入的值是否会发送回我班级的代表。

我试图模拟委托并期望我用来填充数据库的数组。它失败了，因为2 NSArray具有相同的内容但是不同的对象。

我尝试在我的模型上实现isequal和hash方法，但没有成功。

以下是错误日志：

'OCMockObject[NewsListViewController]: unexpected method invoked: service:<RSSService-0x4c25b90-324400011.636966: 0x4c25b90> didFinishParsingRSSWithItems:(
    description102362,
    description102362,
    description102362,
    description102362,
    description102362
) 
    expected:   service:<OCMAnyConstraint: 0x4c10f30> didFinishParsingRSSWithItems:(
    description102362,
    description102362,
    description102362,
    description102362,
    description102362
)'

我该怎么做？

这是我的测试：

- (void) testServiceShouldNotLoadArticlesFromRSSFeedIfArticlesInDatabase {
    NSArray *fakeArticles = [TestUtils createArticles:5];
    [[DatabaseManager sharedManager] saveArticles:fakeArticles];

    RSSService *mockService = [OCMockObject partialMockForObject:service];
    id mockDelegate = [OCMockObject mockForClass:NewsListViewController.class];
    [[mockDelegate expect] service:[OCMArg any] didFinishParsingRSSWithItems:fakeArticles];
    mockService.delegate = mockDelegate;

    [mockService loadAllArticles];
    [mockService verify];
    [mockDelegate verify];
}

这是我正在测试的方法：

- (void) loadAllArticles {
    NSArray *articles = [self articlesFromDatabase];
    [self.delegate service:self didFinishParsingRSSWithItems:articles];
}

感谢您的帮助，文森特

Answer 1

获取OCHamcrest！它提供了一系列与OCMock配合使用的匹配器，可以进行更清晰的测试。这是您期望的样子：

[[mockDelegate expect] service:[OCMArg any] didFinishParsingRSSWithItems:contains(article1, article2, article3, article4, article5, nil)];
// or, if order is unpredictable
[[mockDelegate expect] service:[OCMArg any] didFinishParsingRSSWithItems:containsInAnyOrder(article1, article2, article3, article4, article5, nil)];

如果您确实不想出于某种原因使用hamcrest，可以在测试类中创建一个评估articles数组的方法。但我认为这有点难看：

- (void) testServiceShouldNotLoadArticlesFromRSSFeedIfArticlesInDatabase {
    NSArray *fakeArticles = [TestUtils createArticles:5];
    [[DatabaseManager sharedManager] saveArticles:fakeArticles];

    RSSService *mockService = [OCMockObject partialMockForObject:service];
    id mockDelegate = [OCMockObject mockForClass:NewsListViewController.class];
    [[[mockDelegate stub] andCall:@selector(service:verifyFiveArticles:) onObject:self] service:[OCMArg any] didFinishParsingRSSWithItems:[OCMArg any]];
    mockService.delegate = mockDelegate;

    [mockService loadAllArticles];
    [mockService verify];
    [mockDelegate verify];
}

-(void)service:(id)service verifyFiveArticles:(NSArray *)articles {
    STAssertEquals(5, [articles count]);
}

Answer 2

这两个数组是否可能具有相同的内容但地址不同？也许尝试与isEqualToArray

进行比较

[[mockDelegate expect] service:[OCMArg any]
  didFinishParsingRSSWithItems:[OCMArg checkWithSelector:@selector(isEqualToArray:)
                                                onObject:expectedArray]]

OCMock - 如何期待nsarray的内容

2 个答案: