Passing primitives to an OCMock's stub

Eduardo Costa picture Eduardo Costa · Jun 13, 2011 · Viewed 17.8k times · Source

I'm learning how to use OCMock to test my iPhone's project and I have this scenario: a HeightMap class with a getHeightAtX:andY: method, and a Render class using HeightMap. I'm trying to unit test Render using some HeightMap mocks. This works:

id mock = [OCMockObject mockForClass:[Chunk class]];
int h = 0;
[[[mock stub] andReturnValue:OCMOCK_VALUE(h)] getHeightAtX:0 andY:0];

Of course, works only for x=0 and y=0. I want to test using a "flat" height map. This means I need to do something like this:

id chunk = [OCMockObject mockForClass:[Chunk class]];
int h = 0;
[[[chunk stub] andReturnValue:OCMOCK_VALUE(h)] getHeightAtX:[OCMArg any] andY:[OCMArg any]];

But this raises two compilation warnings:

warning: passing argument 1 of 'getHeightAtX:andY:' makes integer from pointer without a cast

and a runtime error:

unexpected method invoked: 'getHeightAtX:0 andY:0 stubbed: getHeightAtX:15545040 andY:15545024'

What am I missing? I found no way to pass a anyValue to this mock.

Answer

Andrew Park picture Andrew Park · Nov 8, 2013

It's been awhile since this question has been asked but I ran into this issue myself and couldn't find a solution anywhere. OCMock now supports ignoringNonObjectArgs so an example of an expect would be

[[[mockObject expect] ignoringNonObjectArgs] someMethodWithPrimitiveArgument:5];

the 5 doesn't actually do anything, just a filler value