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I'm testing a void method that happens to call several other void methods in a class (all of these methods are in the same class). The method is something along these lines...
public void methodToTest() { methodA(); methodB(); } void methodA() { methodA1(); methodA2(); methodA3(); } What I'd like to do is cause methodA() above to do nothing. That is, I want methodA() to basically be like this:
void methodA() { } I've tried both doThrow() and doAnswer() on methodA() to no avail. It's as if those are both being completely ignored.
An example of what I've tried...
doThrow(new RuntimeException()).when(mockedClass).methodA(); Is there a way to do this just using Mockito? I'm not at liberty to change the class that's being modified.
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Mockito provides following methods that can be used to mock void methods. doAnswer() : We can use this to perform some operations when a mocked object method is called that is returning void. doThrow() : We can use doThrow() when we want to stub a void method that throws exception.
The JUnit 4 @Ignore annotation could be applied for a test method, to skip its execution. In this case, you need to use @Ignore with the @Test annotation for a test method you wish to skip. The annotation could also be applied to the test class, to skip all the test cases under a class.
Your modified program can ask for user input, call the function, then print the output. A testing framework can supply the input from a list of inputs to test, and check the outputs against the expected values. To test as-is, you'd have to intercept the input and output streams.
If you are looking to have methodB still execute, while methodA does nothing. This will do that:
TestClass spy = spy(new TestClass()); doNothing().when(spy).methodA(); spy.methodToTest(); If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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