OCMock是一个NSOperation [英] OCMock an NSOperation

问题描述

我正在尝试编写一些单元测试来测试我们正在编写的一些自定义 NSOperations 。我想做的是创建一个 NSOperation 的模拟并将其放在 NSOperationQueue 上，然后等待为了它完成。我知道我可以调整方法，而不是使用 OCMoc k，但我真的不想这样做。我想使用 OCMock 。我试图运行的代码如下所示：

I am trying to write some Unit Tests to test some custom NSOperations that we are writing. What I'd like to do is create a Mock of the NSOperation and put it on the NSOperationQueue, and then wait for it to finish. I know I can swizzle the methods and not use OCMock at all, but I really don't want to do that. I'd like to use OCMock. The code I'm trying to run is something like the following:

MYOperation *operation = [MYOperation new];
id mockOperation = [OCMockObject partialMockForObject:operation];
[NSOperationQueue *queue = [NSOperationQueue new];
[queue setMaxConcurrentOperationCount:1];
[queue addOperation:mockOperation];

当单元测试到达此行时：

When the unit test gets to this line:

[queue addOperation:mockOperation];

我接到一个解除分配对象异常的调用。任何人对我如何克服这个问题都有任何建议吗？

I get a call to a deallocated object exception. Anyone have any suggestions on how I can overcome this?

推荐答案

如果你正在使用ARC，操作可能在您创建模拟后立即发布，因为它不会再次访问。如果你把它改成这个，它应该修正错误：

If you're using ARC, operation is probably released right after you create the mock, as it's not accessed again. If you change it to this, it should fix the error:

[queue addOperation:operation];

...无论如何你应该做的 - 你正在测试你的对象，而不是模拟。

...which you should be doing anyways--you're testing your object, not the mock.

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