When do app sources need to be included in test targets?

Question

In a new project I have this simple test

#import 
#import \"ViewController.h\"

@interface ViewControllerTests : XCTestCase
@end

@imp         


        

Answer 1

For me it was just a case of having no test targets added for the Scheme.

For the app target go to Edit Scheme, then click Test on the right hand side then add a test target with the + button at the bottom: