I have an error that seems to be related to OCMockObject PartialMock. 
When mocking an object and stubbing a method I get this unrecognized selector error which I'm pretty sure is an order or casting issue.
Here's my test

```
STV_StreamServer *server = [NSEntityDescription insertNewObjectForEntityForName:@"STV_StreamServer"inManagedObjectContext:context];
id mockServer = [OCMockObject partialMockForObject:server];
[[[mockServer stub] andReturnValue:@YES] localURLPresent];
[[[mockServer stub] andReturnValue:@NO] remoteURLPresent];

id mockSUT = [OCMockObject partialMockForObject:sut];

[[[mockSUT stub] andReturnValue:@YES] canLiveStream:nil];

sut.streamServer = mockServer;

NSError *err = [mockSUT checkStreamingPlayabilityForUser:[self getUser:NO]];

XCTAssertNil(err, @"An error occured when basic user tried local playback");

```

sut is a STV\_MediaServer. The error I get is `[STV_MediaServer-0xb39aba0-407898154.181220 setStreamServer:]: unrecognized selector sent to instance 0xb39aba0`. So first off I see that the object type seems wrong since it now includes what looks like a memory location. This occurs when I mock my sut. I'm sure it's an order issue. Been googling for hours.