Pragmatic Unit Testing in Java 8 with JUnit/

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Code Refactoring

Code Refactoring

Learn how refactoring code can improve understanding.

We'll cover the following...

Clean Up Tests

After the second pass through the TDD cycle, we have code we can clean up in the tests. We want our tests to stay short and clear. Both our tests instantiate Profile. Create a Profile field and move the common initialization to an @Before method:

package iloveyouboss;

import org.junit.*;
import static org.junit.Assert.*;

public class ProfileTest {
   private Profile profile;

   @Before
   public void createProfile() {
      profile = new Profile();
   }

   @Test
   public void matchesNothingWhenProfileEmpty() {
      Question question = new BooleanQuestion(1, "Relocation package?");
      Criterion criterion = 
         new Criterion(new Answer(question, Bool.TRUE), Weight.DontCare);
      
      boolean result = profile.matches(criterion);
      
      assertFalse(result);
   }
   // ...
}
ProfileTest.java

Rerun the tests to make sure we ...