问题
I would like to Verify that an expected method is called with the correct parameters in Swift in unit-testing. This was very easily done in Objective-C using the OCMock framework. You could do a combination of partialMocking and running OCMExpect/Verify to assert code paths with the right parameters were being called. Any idea how to do something like this in Swift?
回答1:
Swift doesn't support reflection, so traditional mocking libraries aren't feasible. Instead, you need to create your own mock. There are at least two approaches to do this.
- Create a testing subclass of the class under test. This is partial mocking. Avoid this if possible.
- Use an interface instead of a class. Create a testing implementation of the interface.
Hand-crafted mocks aren't hard. You want to
- Count the number of calls to a method
- Capture its arguments
- Simulate its return value
It is a lot of boilerplate. There are libraries out there that can auto-generate this code.
来源：https://stackoverflow.com/questions/35520332/ocmverify-expect-in-swift