Multiple methods in single test case

Question

I am new to Junit. I have a class with four methods. I am creating a test class with test cases. Can I have a test case that uses more than one methods of testing class or there should one test case per one method. What is good practice ?

score 1 · Answer 1 · edited Apr 12 '17 at 07:31

Can I have a test case that uses more than one method of the tested class

Obviously yes, how will you otherwise test methods which need a specific initialization before? For example

  fooCalculator = new FooCalculator(someParameters);
  fooCalculator.SetOption1(valueForOption1);
  fooCalculator.SetOption2(valueForOption2);
  result = fooCalculator.Calc(); 
  Assert.AreEqual(expectedResultForTheseOptions,result);

If, however, your question is "Can I have a test case that tests more than one method", then the answer is "you should avoid that", because that will typically result in too large tests. See this former question for a detailed explanation.

Multiple methods in single test case

1 Answers1