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2012-01-10T09:15:02.343
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<p>Here is an example of IMHO well-written test case (written in notepad, please correct if does not compile):</p> <pre><code>import static org.fest.assertions.Assertions.assertThat; public class StudentTest { private final Student student = new StudentServiceImpl(); @Test public void shouldReturnEmptyListOfStudentsWhenNotInitialized() { //given //when List<String> students = student.getStudentList(); //then assertThat(students).isEmpty(); } @Test public void shouldReturnSomeStudentsWhenListCreated() { //given student.createStudentList(); //when List<String> students = student.getStudentList(); //then assertThat(students).containsExactly("John", "Bill", "Ricky", "Jack"); } @Test public void shouldStorePreviouslySetListOfStudents() { //given student.setStudentList(Arrays.asList("Jane", "Bob")); //when List<String> students = student.getStudentList(); //then assertThat(students).containsExactly("Jane", "Bob"); } } </code></pre> <h3>Few tips:</h3> <ol> <li><p>Keep tests short and simple</p></li> <li><p>Test name should describe what use case is being tested</p></li> <li><p>Separate setup code, tested logic and assertions</p></li> <li><p>Code should be easy to read. Use fluent and descriptive libraries like <a href="http://code.google.com/p/fest/" rel="nofollow">FEST</a></p></li> </ol> <h3>Further improvements:</h3> <ol> <li><p>The first test should fail, do you know why?</p></li> <li><p>There are still few tests missing, do you know which ones?</p></li> </ol>
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1. PONeed help in writing JUnit Case
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1. USTomasz Nurkiewicz
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