1 package org.mockitousage.junitrunner; 2 3 import org.junit.Test; 4 import org.junit.runner.JUnitCore; 5 import org.junit.runner.Result; 6 import org.junit.runner.RunWith; 7 import org.junit.runner.notification.Failure; 8 import org.mockito.junit.MockitoJUnitRunner; 9 import org.mockitousage.IMethods; 10 import org.mockitoutil.TestBase; 11 12 import static org.junit.Assert.assertEquals; 13 import static org.mockito.Mockito.mock; 14 import static org.mockito.Mockito.when; 15 16 public class UnusedStubsExceptionMessageTest extends TestBase { 17 18 //Moving the code around this class is tricky and may cause the test to fail 19 //We're asserting on full exception message which contains line numbers 20 //Let's leave it for now, updating the test is cheap and if it turns out hindrance we can make the assertion smarter. 21 @RunWith(MockitoJUnitRunner.class) 22 public static class HasUnnecessaryStubs { 23 IMethods mock1 = when(mock(IMethods.class).simpleMethod(1)).thenReturn("1").getMock(); 24 IMethods mock2 = when(mock(IMethods.class).simpleMethod(2)).thenReturn("2").getMock(); 25 IMethods mock3 = when(mock(IMethods.class).simpleMethod(3)).thenReturn("3").getMock(); 26 27 @Test usesStub()28 public void usesStub() { 29 assertEquals("1", mock1.simpleMethod(1)); 30 } 31 32 @Test usesStubWithDifferentArg()33 public void usesStubWithDifferentArg() { 34 assertEquals(null, mock2.simpleMethod(200)); 35 assertEquals(null, mock3.simpleMethod(300)); 36 } 37 } 38 39 @Test lists_all_unused_stubs_cleanly()40 public void lists_all_unused_stubs_cleanly() { 41 JUnitCore runner = new JUnitCore(); 42 //when 43 Result result = runner.run(HasUnnecessaryStubs.class); 44 //then 45 Failure failure = result.getFailures().get(0); 46 assertEquals("\n" + 47 "Unnecessary stubbings detected in test class: HasUnnecessaryStubs\n" + 48 "Clean & maintainable test code requires zero unnecessary code.\n" + 49 "Following stubbings are unnecessary (click to navigate to relevant line of code):\n" + 50 " 1. -> at org.mockitousage.junitrunner.UnusedStubsExceptionMessageTest$HasUnnecessaryStubs.<init>(UnusedStubsExceptionMessageTest.java:0)\n" + 51 " 2. -> at org.mockitousage.junitrunner.UnusedStubsExceptionMessageTest$HasUnnecessaryStubs.<init>(UnusedStubsExceptionMessageTest.java:0)\n" + 52 "Please remove unnecessary stubbings or use 'silent' option. More info: javadoc for UnnecessaryStubbingException class.", 53 filterLineNo(failure.getException().getMessage())); 54 } 55 } 56