在 Kiwi (iOS) 中模拟代表的期望

Question

问题的简短版本：

以下 Kiwi/iOS 模拟期望有什么问题？

[[mockDelegate should] receive:@selector(connectionDidSucceedWithText:andStatus:) withArguments:[testString1 stringByAppendingString:testString2],theValue(value),nil];

长版问题：

我正在尝试在 iOS 的 Kiwi 中为一个处理 NSConnection 的简单类编写测试。为了测试该类是否处理来自 NSConnection 的回调，我将其发送给 NSConnection 通常执行的委托方法。我在班级中有一个代表，可以将数据发送回使用我班级的任何人。要测试我的课程，我必须注入一个模拟委托，然后检查是否调用了我想要的方法。就这么简单:)

我的 Kiwi 测试代码是：

//Some ivars declared elsewhere:
testString1 = @"asd323/4 d14";
testString2 = @"as98 /2y9h3fdd14";
testData1 = [testString1 dataUsingEncoding:NSUTF8StringEncoding];
testData2 = [testString2 dataUsingEncoding:NSUTF8StringEncoding];
mockURLRespons = [NSHTTPURLResponse mock];
int value = 11111;
id mockDelegate = [KWMock mockForProtocol:@protocol(SharepointConnectionDelegate)];
communicator = [[SharepointCommunicator alloc] init];

it (@"should send recieve data back to delegate2", ^{
   [communicator setDelegate:mockDelegate];
   [mockURLRespons stub:@selector(statusCode) andReturn:theValue(value)];
   [(id)communicator connection:niceMockConnector didReceiveResponse:mockURLRespons];
   [(id)communicator connection:niceMockConnector didReceiveData:testData1];
   [(id)communicator connection:niceMockConnector didReceiveData:testData2];
   [(id)communicator connectionDidFinishLoading:niceMockConnector]; 

   [[mockDelegate should] receive:@selector(connectionDidSucceedWithText:andStatus:) withArguments:[testString1 stringByAppendingString:testString2],theValue(value),nil];

});

在我的 SharepointCommunicator.m 中：

-(void)connection:(NSURLConnection *)aConnection didReceiveResponse:(NSURLResponse *)response {
  if (connection != aConnection) {
      [connection cancel];
      connection = aConnection;
  }
  responseData = [[NSMutableData alloc] init];
  statusCode = [(NSHTTPURLResponse*)response statusCode];
}

-(void)connection:(NSURLConnection *)aConnection didReceiveData:(NSData *)data {
  if (aConnection != self.connection)
    return;
  [responseData appendData:data];
}

-(void)connectionDidFinishLoading:(NSURLConnection *)connection {
  NSString *txt = [[NSString alloc] initWithData:responseData encoding: NSASCIIStringEncoding];
  NSLog(@"Statuscode: %i", statusCode);
  NSLog(@"Data is: %@",txt);
  [delegate connectionDidSucceedWithText:txt andStatus:statusCode];
  [self.connection cancel];
  self.connection = nil;
}

此代码有效且正确。使用检查点对其进行调试表明它按预期进行。 statusCode 的值为 11111。txt 为 testString1+textString2。它仍然在测试的最后一行失败，并出现以下错误：

error: -[kiwiSharepointCommunicatorTest Sharepointcommunicator_AStateTheComponentIsIn_ShouldSendRecieveDataBackToDelegate2] : 'Sharepointcommunicator, a state the component is in, should send recieve data back to delegate2' [FAILED], mock received unexpected message -connectionDidSucceedWithText："asd323/4 d14as98 /2y9h3fdd14" andStatus：11111 
Test Case '-[kiwiSharepointCommunicatorTest Sharepointcommunicator_AStateTheComponentIsIn_ShouldSendRecieveDataBackToDelegate2]' failed (3.684 seconds).

删除测试中的最后一行仍然会产生相同的错误。我想我对 receive:withArguments: 的理解是错误的..

Answer 1

您必须在调用connectionDidFinishLoading 之前调用[[mockDelegate should] receive...，以便为即将接收的消息准备模拟委托。