iOS how to test a method that calls the [[UIApplication sharedApplication] openUrl:someUrl]

Question

I want to create a test for the method bellow, I would like to check if the forgot password is right. I'm new on TDD and I would like to know if you guys think this is necessary and how could I implement the test.

- (IBAction)forgotPasswordButtonClicked:(id)sender {
[[UIApplication sharedApplication] openURL:[NSURL URLWithString:kForgetPasswordURL]];

}

Thanks a lot

Answer 1

For OCMock 3, try the following:

id mockApplication = OCMClassMock([UIApplication class]);
OCMStub([mockApplication sharedApplication]).andReturn(mockApplication);

OCMVerify([mockApplication openURL:[OCMArg any]]);

This article helped me out.

Answer 2

I deleted the new class with the static method and to solve my problem I used a partial mock from the Specta framework: id mockApplication = [OCMockObject partialMockForObject:[UIApplication sharedApplication]];

I guess this is a better solution. (I didn't know partial mocks before)