Mock Object not able to stub dynamic properties

[jhoughjr]

I'm mocking UILocalNotification.
In its header, it declares :
(line 47, UILocalNotification.h)
@Property(nonatomic,copy) NSDictionary *userInfo; // throws if contains non-property list types

However expecting -userInfo on the UILocalNotification mock throws the "cannot stub/verify .. because it does not exist in the mocked class" exception.

If I do not expect it, when the test runs I get an unrecognized selector exception.

I dont understand why this is happening since it appears to be the same scenario in many tests that work fine.

Here is the test and code under test that reproduces this scenario
https://gist.github.com/jhoughjr/dcfd9a7bbf869c0695d1

Possibly I am doing something wrong, but I don't see it, as this seems a simple test case.

[d-ronnqvist]

The same problem seem to happen with other properties (I'm stubbing taskDescription of NSURLSessionDataTask).

It looks like it has something to do with the instance method signature being nil:

[NSURLSessionDataTask instanceMethodSignatureForSelector:@selector(setTaskDescription:)]

returns nil for me (in Xcode 7)

[erikdoe]

So, if the class cannot provide a method signature, it's somewhat tricky for OCMock to mock the method. What happens when you mock the valueForKey: method instead? The discussion on #68 could also be helpful.

[erikdoe]

I have just merged #223 which makes it possible to stub dynamic properties as if they were regular methods. Can you verify that this fixes your problem?

[d-ronnqvist]

It does not resolve the issue I was facing (on Xcode 7). That issue can very concisely be verified with this test:

- (void)testCanStubTaskDescriptionOnNSRULSessionTask
{
    id mock = [OCMockObject mockForClass:[NSURLSessionDataTask class]];
    [[mock stub] setTaskDescription:OCMOCK_ANY]; // stubbing setTaskDescription: fails
    [mock setTaskDescription:@"test-value"];
}

Should I file a separate issue for that?

[erikdoe]

Yes, I see. The change in #223 only provides the getters while you need the setter.

[jhoughjr]

I'll update my pod and check later today. seems i found some workaround.
Never mind this previous comment. Xcode completed the wrong method it seems.

[imhuntingwabbits]

Sorry for the delay, got busy at work but I'll take a look at this tonight. Mocking the setter should just require synthesizing the method signature in the same way as the getter.

[imhuntingwabbits]

#240

[erikdoe]

Assuming fixed.

[imhuntingwabbits]

I think so given you merged my PRs.