OCMock可以运行块参数吗？ [英] Can OCMock run a block parameter?

问题描述

假设方法签名如下：

- (void)theMethod:(void(^)(BOOL completed))completionBlock;

我想模拟这个方法签名以确保调用该方法，并只调用完成块。我从其他帖子中看到，例如这一个我可以模拟方法调用并接受任何块，但不能运行块。我也知道有一种我可以使用的andDo方法，但我无法弄清楚如何传递一个块并运行它。

I would like to mock this method signature to ensure the method is called, and just call the completion block. I see from other posts like this one that I can mock the method call and accept any block, but not run the block. I also know there is a andDo method that I might be able to use, but I can't figure out how to pass a block in and run it.

任何想法？

谢谢。

推荐答案

你可以使用 [[mock stub]和do：] 来传递调用mocked方法时调用的另一个块：

You can use [[mock stub] andDo:] like this to pass another block that gets called when your mocked method is called:

void (^proxyBlock)(NSInvocation *) = ^(NSInvocation *invocation) {
     void (^passedBlock)( BOOL );
     [invocation getArgument: &passedBlock atIndex: 2];
};
[[[mock stub] andDo: proxyBlock] theMethod:[OCMArg any]];

该块获取 NSInvocation 实例您可以查询所有使用的参数。请注意，第一个参数位于索引2，因为在索引0和1处有self和_cmd。

The block gets a NSInvocation instance from which you can query all the used arguments. Note that the first argument is at index 2 since you have self and _cmd at the indices 0 and 1.

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