问题描述
|
我想测试我插入数据库中的值是否发回给我的类的委托。
我试图模拟委托,并期望我用来填充数据库的数组。它失败是因为2个NSArray具有相同的内容,但是是不同的对象。
我曾尝试在我的模型上成功实现等值和哈希方法。
这是错误日志:
\'OcmockObject[NewsListViewController]: unexpected method invoked: service:<RSSService-0x4c25b90-324400011.636966: 0x4c25b90> didFinishParsingRSSWithItems:(
description102362,description102362,description102362
)
expected: service:<OCMAnyConstraint: 0x4c10f30> didFinishParsingRSSWithItems:(
description102362,description102362
)\'
我怎样才能做到这一点 ?
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];
}
谢谢你的帮助,
文森特
解决方法
获取OCHamcrest!它提供了一堆与OCMock配合使用的匹配器,并进行了更加整洁的测试。这是您的期望:
[[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,nil)];
如果由于某些原因确实不想使用hamcrest,则可以在测试类中创建一个用于评估articles数组的方法。但是我认为这很丑陋:
- (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]);
}
,这两个数组可能具有相同的内容但地址不同吗?也许尝试与ѭ5进行比较
[[mockDelegate expect] service:[OCMArg any]
didFinishParsingRSSWithItems:[OCMArg checkWithSelector:@selector(isEqualToArray:)
onObject:expectedArray]]