KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use ExampleRule class of junit.rule package

Best Spectrum code snippet using junit.rule.ExampleRule

Source:ExampleRuleTest.java

...13import java.util.List;14import static org.junit.Assert.assertEquals;15import static org.junit.Assert.assertSame;16import static org.mockito.Mockito.mock;17public class ExampleRuleTest  {18    private ExampleRule exampleRule;19    private List<RuleViolation> receivedViolations;20    private RuleContext ruleContextMock;21    @Before22    public void setUp() {23        exampleRule = new ExampleRule();24        receivedViolations = new LinkedList<>();25        ruleContextMock = new RuleContext() {26            @Override27            public Report getReport() {28                return new Report() {29                    @Override30                    public void addRuleViolation(RuleViolation violation) {31                        receivedViolations.add(violation);32                    }33                };34            }35        };36        ruleContextMock.setLanguageVersion(new LanguageVersion(new ApexLanguageModule(),"",new ApexHandler()));37    }...

Source:RuleMethodExample.java

...18        return ruleEvaluationCount.get() == 1 && anotherRuleEvaluationCount.get() == 1;19    }20    @Rule21    public TestRule getRule() {22        return new ExampleRule(ruleEvaluationCount);23    }24    @Rule25    public TestRule getAnotherRule() {26        return new ExampleRule(anotherRuleEvaluationCount);27    }28    @Test29    public void aValidTest() {30        assert ruleEvaluationCount.get() > 0;31    }32    public static class ExampleRule implements TestRule {33        private final AtomicInteger evaluationCount;34        ExampleRule(AtomicInteger evaluationCount) {35            this.evaluationCount = evaluationCount;36        }37        @Override38        public Statement apply(Statement base, Description description) {39            return new Statement() {40                @Override41                public void evaluate() throws Throwable {42                    evaluationCount.incrementAndGet();43                    base.evaluate();44                }45            };46        }47    }48}...

Source:RuleFieldExample.java

...9public class RuleFieldExample {10    private final static AtomicInteger ruleEvaluationCount = new AtomicInteger();11    private final static AtomicInteger anotherRuleEvaluationCount = new AtomicInteger();12    @Rule13    public final ExampleRule rule = new ExampleRule(ruleEvaluationCount);14    @Rule15    public final ExampleRule anotherRule = new ExampleRule(anotherRuleEvaluationCount);16    @BeforeClass17    public static void resetRules() {18        ruleEvaluationCount.set(0);19        anotherRuleEvaluationCount.set(0);20    }21    static boolean rulesHaveBeenProcessedForTest() {22        return ruleEvaluationCount.get() == 1 && anotherRuleEvaluationCount.get() == 1;23    }24    @Test25    public void aValidTest() {26        assert ruleEvaluationCount.get() > 0;27    }28    public static class ExampleRule implements TestRule {29        private final AtomicInteger evaluationCount;30        ExampleRule(AtomicInteger evaluationCount) {31            this.evaluationCount = evaluationCount;32        }33        @Override34        public Statement apply(Statement base, Description description) {35            return new Statement() {36                @Override37                public void evaluate() throws Throwable {38                    evaluationCount.incrementAndGet();39                    base.evaluate();40                }41            };42        }43    }44}...

ExampleRule

Using AI Code Generation

1package junit.rule;2import org.junit.Rule;3import org.junit.Test;4import org.junit.rules.ExpectedException;5public class ExampleRule {6	public ExpectedException thrown = ExpectedException.none();7	public void throwsNothing() {8	}9	public void throwsNullPointerException() {10		thrown.expect(NullPointerException.class);11		throw new NullPointerException();12	}13	public void throwsNullPointerExceptionWithMessage() {14		thrown.expect(NullPointerException.class);15		thrown.expectMessage("Hi");16		throw new NullPointerException("Hi");17	}18	public void throwsNullPointerExceptionWithMessageContaining() {19		thrown.expect(NullPointerException.class);20		thrown.expectMessage("Hi");21		throw new NullPointerException("Hi there");22	}23	public void throwsNullPointerExceptionWithMessageContaining2() {24		thrown.expect(NullPointerException.class);25		thrown.expectMessage("Hi");26		throw new NullPointerException("Hi there");27	}28}29package junit.rule;30import org.junit.Rule;31import org.junit.Test;32import org.junit.rules.TestWatcher;33import org.junit.runner.Description;34public class TestWatcherExample {35	public TestWatcher watchman = new TestWatcher() {36		protected void starting(Description description) {37			System.out.println("About to start " + description.getMethodName());38		}39		protected void succeeded(Description description) {40			System.out.println("Success " + description.getMethodName());41		}42		protected void failed(Throwable e, Description description) {43			System.out.println("Failure " + description.getMethodName());44		}45		protected void finished(Description description) {46			System.out.println("Finished " + description.getMethodName());47		}48	};49	public void testSuccess() {50	}51	public void testFailure() {52		throw new RuntimeException("Failure");53	}54}55package junit.rule;56import java.util.concurrent.TimeUnit;57import org.junit.Rule;58import org.junit.Test;59import org.junit.rules.Timeout;60public class TimeoutExample {61	public Timeout globalTimeout = Timeout.seconds(20);62	public void testSleepForTooLong() throws Exception {63		TimeUnit.SECONDS.sleep(10);64	}65}

ExampleRule

Using AI Code Generation

1package junit.rule;2import org.junit.Rule;3import org.junit.Test;4public class ExampleRuleTest {5    public ExampleRule rule = new ExampleRule();6    public void test() {7        System.out.println("Test method");8    }9}10package junit.rule;11import org.junit.rules.TestRule;12import org.junit.runner.Description;13import org.junit.runners.model.Statement;14public class ExampleRule implements TestRule {15    public Statement apply(Statement base, Description description) {16        return new ExampleStatement(base, description);17    }18    private class ExampleStatement extends Statement {19        private final Statement base;20        private final Description description;21        public ExampleStatement(Statement base, Description description) {22            this.base = base;23            this.description = description;24        }25        public void evaluate() throws Throwable {26            System.out.println("Before Statement");27            base.evaluate();28            System.out.println("After Statement");29        }30    }31}32JUnit: @Test(expected = Exception.class)33JUnit: @Test(timeout = 1000)

ExampleRule

Using AI Code Generation

1import org.junit.Rule;2import org.junit.Test;3import org.junit.rules.ExpectedException;4public class ExampleRule {5	public ExpectedException thrown = ExpectedException.none();6	public void throwsNothing() {7	}8	public void throwsNullPointerException() {9		thrown.expect(NullPointerException.class);10		throw new NullPointerException();11	}12	public void throwsNullPointerExceptionWithMessage() {13		thrown.expect(NullPointerException.class);14		thrown.expectMessage("happened");15		throw new NullPointerException("something happened");16	}17}18	at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:258)19	at org.junit.rules.RunRules.evaluate(RunRules.java:20)20	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)21	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)22	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)23	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)24	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)25	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)26	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)27	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)28	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)29	at org.junit.runner.JUnitCore.run(JUnitCore.java:137)30	at org.junit.runner.JUnitCore.run(JUnitCore.java:115)31	at org.junit.runner.JUnitCore.runMain(JUnitCore.java:77)32	at org.junit.runner.JUnitCore.main(JUnitCore.java:36)

ExampleRule

Using AI Code Generation

1import junit.rule.ExampleRule;2import org.junit.Rule;3import org.junit.Test;4import org.junit.rules.TestRule;5import org.junit.runner.Description;6import org.junit.runners.model.Statement;7public class ExampleRuleTest {8   public TestRule rule = new ExampleRule();9   public void example() {10      System.out.println("Example test");11   }12}13import junit.rule.ExampleRule;14import org.junit.Rule;15import org.junit.Test;16import org.junit.rules.TestRule;17import org.junit.runner.Description;18import org.junit.runners.model.Statement;19public class ExampleRuleTest {20   public TestRule rule = new ExampleRule();21   public void example() {22      System.out.println("Example test");23   }24}25import junit.rule.ExampleRule;26import org.junit.Rule;27import org.junit.Test;28import org.junit.rules.TestRule;29import org.junit.runner.Description;30import org.junit.runners.model.Statement;31public class ExampleRuleTest {32   public TestRule rule = new ExampleRule();33   public void example() {34      System.out.println("Example test");35   }36}37import junit.rule.ExampleRule;38import org.junit.Rule;39import org.junit.Test;40import org.junit.rules.TestRule;41import org.junit.runner.Description;42import org.junit.runners.model.Statement;43public class ExampleRuleTest {44   public TestRule rule = new ExampleRule();45   public void example() {46      System.out.println("Example test");47   }48}49import junit.rule.ExampleRule;50import org.junit.Rule;51import org.junit.Test;52import org.junit.rules.TestRule;53import org.junit.runner.Description;54import org.junit.runners.model.Statement;55public class ExampleRuleTest {56   public TestRule rule = new ExampleRule();57   public void example() {58      System.out.println("Example test");59   }60}61import junit.rule.ExampleRule;62import org.junit.Rule;63import

ExampleRule

Using AI Code Generation

1package com.example;2import org.junit.Rule;3import org.junit.Test;4import org.junit.rules.ExpectedException;5import org.junit.rules.TestRule;6import org.junit.runner.Description;7import org.junit.runners.model.Statement;8public class ExampleRuleTest {9  public final TestRule rule = new TestRule() {10    public Statement apply(final Statement base, Description description) {11      return new Statement() {12        public void evaluate() throws Throwable {13          System.out.println("Before");14          base.evaluate();15          System.out.println("After");16        }17      };18    }19  };20  public void test1() {21    System.out.println("test1");22  }23  public void test2() {24    System.out.println("test2");25  }26}27package com.example;28import org.junit.Rule;29import org.junit.Test;30import org.junit.rules.Timeout;31public class ExampleRuleTest {32  public Timeout globalTimeout = Timeout.seconds(1);33  public void test1() throws InterruptedException {34    Thread.sleep(500);35    System.out.println("test1");36  }37  public void test2() throws InterruptedException {38    Thread.sleep(1500);39    System.out.println("test2");40  }41}42  at java.lang.Thread.sleep(Native Method)43  at com.example.ExampleRuleTest.test2(ExampleRuleTest.java:14)44package com.example;45import org.junit.Rule;46import org.junit.Test;47import org.junit.rules.TestName;48public class ExampleRuleTest {49  public TestName name = new TestName();50  public void test1() {51    System.out.println("test1");52    System.out.println(name.getMethodName());53  }54  public void test2() {55    System.out.println("test2");56    System.out.println(name.getMethodName());57  }58}

ExampleRule

Using AI Code Generation

1import org.junit.runner.RunWith;2import org.junit.runners.Suite;3import org.junit.runners.Suite.SuiteClasses;4import org.junit.rules.ExampleRule;5import org.junit.Rule;6import org.junit.Test;7import org.junit.rules.ExternalResource;8import org.junit.rules.TestRule;9import org.junit.rules.TestWatcher;10import org.junit.runner.Description;11import org.junit.runners.model.Statement;12@RunWith(Suite.class)13@SuiteClasses({ExampleRule.class})14public class ExampleRuleTest {15    public ExampleRule example = new ExampleRule();16    public void test1() {17        System.out.println("test1");18    }19    public void test2() {20        System.out.println("test2");21    }22}23import org.junit.runner.RunWith;24import org.junit.runners.Suite;25import org.junit.runners.Suite.SuiteClasses;26import org.junit.rules.ExampleRule;27import org.junit.Rule;28import org.junit.Test;29import org.junit.rules.ExternalResource;30import org.junit.rules.TestRule;31import org.junit.rules.TestWatcher;32import org.junit.runner.Description;33import org.junit.runners.model.Statement;34@RunWith(Suite.class)35@SuiteClasses({ExampleRule.class})36public class ExampleRuleTest {37    public ExternalResource example = new ExternalResource() {38        protected void before() throws Throwable {39            System.out.println("before");40        }41        protected void after() {42            System.out.println("after");43        }44    };45    public void test1() {46        System.out.println("test1");47    }48    public void test2() {49        System.out.println("test2");50    }51}52import org.junit.runner.RunWith;53import org.junit.runners.Suite;54import org.junit.runners.Suite.SuiteClasses;55import org.junit.rules.ExampleRule;56import org.junit.Rule;57import org.junit.Test;58import org.junit.rules.ExternalResource;59import org.junit.rules.TestRule;60import org.junit.rules.TestWatcher;61import org.junit.runner.Description;62import org.junit.runners.model.Statement;63@RunWith(Suite.class)64@SuiteClasses({ExampleRule.class})65public class ExampleRuleTest {66    public TestWatcher example = new TestWatcher() {

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.