How to test void methods using EasyMock

java unit-testing junit easymock
KWJ2104 picture KWJ2104 · Jul 30, 2012 · Viewed 40.3k times · Source

I've seen a few questions out there regarding this but I can't seem to make sense of any of the answers for my particular problem.

I have a mock object, lets call "object1", which I send to some method for testing, lets call testMethod(). So I end up calling 

testMethod(object1);

for testing. Now somewhere in this testMethod, there will be a part where it calls a method 

object1.toggleDisplay();

which is a void method. If the method were like 

object1.getDisplay()

where it actually returns something, I usually do

EasyMock.expect(object1.getDisplay()).andReturn(whatever);

However, this is a void method, and I would like to just test that this has been indeed been called for a certain amount of times. What is the easiest way to do this?

Thanks

Answer

hvgotcodes picture hvgotcodes · Jul 30, 2012

If things haven't changed in the last few years, you use expectLastCall when setting up your expectations.

object1.toggleDisplay();
object.expectLastCall();

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