Mock class method not being called

I'm attempting to test a method on my class that calls a class method on another class. The second class I'm calling is contained inside of a framework if that matters.

Simplified version of the method I'm trying to test. I just want to verify that the switch statement does what I expect by catching and verifying the call to [DataCapture trackEvent:].

- (void)beaconValue:(NSInteger)value
{
    NSString* elementIdValue;
    switch(value)
    {
        case 1:
            elementIdValue = @"One";
            break;
        case 2:
            elementIdValue = @"Two";
            break;
        case 3:
            elementIdValue = @"Three";
            break;
    }

    [DataCapture trackEvent:elementValueId];
}

Here is the test I wrote that I expect to work:

- (void)testCaptureData_1
{
    id mockDataCapture = OCMClassMock([DataCapture class]);

    OCMExpect([mockDataCapture trackEvent:@"One"]);

    [[BeaconingService sharedBeaconingService] beaconValue:1];

    OCMVerifyAll(mockDataCapture);

    [mockDataCapture stopMocking];
}

My verify always tells me that the expected trackEvent method was not invoked, even if I change my expect to [OCMArg any]. Am I doing something obviously wrong or is the problem elsewhere (i.e. bad project setup?)