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How to use hasSingleFailureMatching method of org.junit.experimental.results.ResultMatchers class

Best junit code snippet using org.junit.experimental.results.ResultMatchers.hasSingleFailureMatching

Source:VerifierRuleTest.java

...3import static org.junit.Assert.assertEquals;4import static org.junit.Assert.assertThat;5import static org.junit.experimental.results.PrintableResult.testResult;6import static org.junit.experimental.results.ResultMatchers.hasFailureContaining;7import static org.junit.experimental.results.ResultMatchers.hasSingleFailureMatching;8import static org.junit.experimental.results.ResultMatchers.isSuccessful;9import java.util.concurrent.Callable;10import org.hamcrest.CoreMatchers;11import org.junit.Rule;12import org.junit.Test;13import org.junit.experimental.results.PrintableResult;14import org.junit.function.ThrowingRunnable;15import org.junit.internal.AssumptionViolatedException;16public class VerifierRuleTest {17    public static class UsesErrorCollector {18        @Rule19        public ErrorCollector collector = new ErrorCollector();20        @Test21        public void example() {22            collector.addError(new Throwable("message"));23        }24    }25    @Test26    public void usedErrorCollectorShouldFail() {27        assertThat(testResult(UsesErrorCollector.class), hasFailureContaining("message"));28    }29    public static class PassesAssumptionViolatedExceptionToErrorCollector {30        @Rule31        public ErrorCollector collector = new ErrorCollector();32        @Test33        public void example() {34            collector.addError(new AssumptionViolatedException("message"));35        }36    }37    @Test38    public void passingAssumptionViolatedExceptionShouldResultInFailure() {39        assertThat(testResult(PassesAssumptionViolatedExceptionToErrorCollector.class), hasSingleFailureMatching(40                CoreMatchers.<Throwable>instanceOf(AssertionError.class)));41    }42    public static class UsesErrorCollectorTwice {43        @Rule44        public ErrorCollector collector = new ErrorCollector();45        @Test46        public void example() {47            collector.addError(new Throwable("first thing went wrong"));48            collector.addError(new Throwable("second thing went wrong"));49        }50    }51    @Test52    public void usedErrorCollectorTwiceShouldFail() {53        PrintableResult testResult = testResult(UsesErrorCollectorTwice.class);54        assertThat(testResult, hasFailureContaining("first thing went wrong"));55        assertThat(testResult, hasFailureContaining("second thing went wrong"));56    }57    public static class UsesErrorCollectorCheckThat {58        @Rule59        public ErrorCollector collector = new ErrorCollector();60        @Test61        public void example() {62            collector.checkThat(3, is(4));63            collector.checkThat(5, is(6));64            collector.checkThat("reason 1", 7, is(8));65            collector.checkThat("reason 2", 9, is(16));66        }67    }68    @Test69    public void usedErrorCollectorCheckThatShouldFail() {70        PrintableResult testResult = testResult(UsesErrorCollectorCheckThat.class);71        assertThat(testResult, hasFailureContaining("was <3>"));72        assertThat(testResult, hasFailureContaining("was <5>"));73        assertThat(testResult, hasFailureContaining("reason 1"));74        assertThat(testResult, hasFailureContaining("was <7>"));75        assertThat(testResult, hasFailureContaining("reason 2"));76        assertThat(testResult, hasFailureContaining("was <9>"));77    }78    public static class UsesErrorCollectorCheckSucceeds {79        @Rule80        public ErrorCollector collector = new ErrorCollector();81        @Test82        public void example() {83            collector.checkSucceeds(new Callable<Object>() {84                public Object call() throws Exception {85                    throw new RuntimeException("first!");86                }87            });88            collector.checkSucceeds(new Callable<Integer>() {89                public Integer call() throws Exception {90                    throw new RuntimeException("second!");91                }92            });93            Integer result = collector.checkSucceeds(new Callable<Integer>() {94                public Integer call() throws Exception {95                    return 1;96                }97            });98            assertEquals(Integer.valueOf(1), result);99        }100    }101    @Test102    public void usedErrorCollectorCheckSucceedsShouldFail() {103        PrintableResult testResult = testResult(UsesErrorCollectorCheckSucceeds.class);104        assertThat(testResult, hasFailureContaining("first!"));105        assertThat(testResult, hasFailureContaining("second!"));106    }107    public static class UsesErrorCollectorCheckSucceedsWithAssumptionViolatedException {108        @Rule109        public ErrorCollector collector = new ErrorCollector();110        @Test111        public void example() {112            collector.checkSucceeds(new Callable<Object>() {113                public Object call() throws Exception {114                    throw new AssumptionViolatedException("message");115                }116            });117        }118    }119    @Test120    public void usedErrorCollectorCheckSucceedsWithAssumptionViolatedExceptionShouldFail() {121        PrintableResult testResult = testResult(UsesErrorCollectorCheckSucceedsWithAssumptionViolatedException.class);122        assertThat(testResult, hasSingleFailureMatching(CoreMatchers.<Throwable>instanceOf(AssertionError.class)));123        assertThat(testResult, hasFailureContaining("Callable threw AssumptionViolatedException"));124    }125    public static class UsesErrorCollectorCheckSucceedsPasses {126        @Rule127        public ErrorCollector collector = new ErrorCollector();128        @Test129        public void example() {130            assertEquals(3, collector.checkSucceeds(new Callable<Object>() {131                public Object call() throws Exception {132                    return 3;133                }134            }));135        }136    }...

Source:ResultMatchers.java

2  public org.junit.experimental.results.ResultMatchers();3  public static org.hamcrest.Matcher<org.junit.experimental.results.PrintableResult> isSuccessful();4  public static org.hamcrest.Matcher<org.junit.experimental.results.PrintableResult> failureCountIs(int);5  public static org.hamcrest.Matcher<java.lang.Object> hasSingleFailureContaining(java.lang.String);6  public static org.hamcrest.Matcher<org.junit.experimental.results.PrintableResult> hasSingleFailureMatching(org.hamcrest.Matcher<java.lang.Throwable>);7  public static org.hamcrest.Matcher<org.junit.experimental.results.PrintableResult> hasFailureContaining(java.lang.String);8}...

hasSingleFailureMatching

Using AI Code Generation

1import org.junit.Test;2import static org.junit.Assert.*;3import static org.junit.experimental.results.PrintableResult.*;4import static org.junit.experimental.results.ResultMatchers.*;5public class JUnit4Test {6    public void test() {7        assertThat(testResult(Example.class), hasSingleFailureContaining("failed"));8    }9}10import org.junit.Test;11import static org.junit.Assert.*;12import static org.junit.experimental.results.PrintableResult.*;13import static org.junit.experimental.results.ResultMatchers.*;14public class JUnit4Test {15    public void test() {16        assertThat(testResult(Example.class), hasSingleFailureContaining("failed"));17    }18}19import org.junit.Test;20import static org.junit.Assert.*;21import static org.junit.experimental.results.PrintableResult.*;22import static org.junit.experimental.results.ResultMatchers.*;23public class JUnit4Test {24    public void test() {25        assertThat(testResult(Example.class), hasSingleFailureContaining("failed"));26    }27}28import org.junit.Test;29import static org.junit.Assert.*;30import static org.junit.experimental.results.PrintableResult.*;31import static org.junit.experimental.results.ResultMatchers.*;32public class JUnit4Test {33    public void test() {34        assertThat(testResult(Example.class), hasSingleFailureContaining("failed"));35    }36}37import org.junit.Test;38import static org.junit.Assert.*;39import static org.junit.experimental.results.PrintableResult.*;40import static org.junit.experimental.results.ResultMatchers.*;41public class JUnit4Test {42    public void test() {43        assertThat(testResult(Example.class), hasSingleFailureContaining("failed"));44    }45}46import org.junit.Test;47import static org.junit.Assert.*;48import static org.junit.experimental.results.PrintableResult.*;49import static org.junit.experimental.results.ResultMatchers.*;50public class JUnit4Test {51    public void test() {52        assertThat(testResult(Example.class), hasSingleFailureContaining("failed"));53    }54}55import org.junit.Test;56import static org.junit.Assert.*;57import static org.junit.experimental.results.PrintableResult.*;58import static org.junit.experimental.results.ResultMatchers.*;59public class JUnit4Test {60    public void test() {61        assertThat(testResult(Example.class), hasSingleFailureContaining("failed"));62    }63}64import org.junit.Test;65import static org

hasSingleFailureMatching

Using AI Code Generation

1import org.junit.Test;2import org.junit.experimental.results.PrintableResult;3import org.junit.experimental.results.ResultMatchers;4public class ResultMatcherTest {5    public void test() {6        PrintableResult result = PrintableResult.testResult(ExampleTest.class);7        ResultMatchers.hasSingleFailureMatching(result, "expected:<[1]> but was:<[2]>");8    }9}10import static org.junit.Assert.assertEquals;11public class ExampleTest {12    public void test() {13        assertEquals(1, 2);14    }15}16	at org.junit.Assert.assertEquals(Assert.java:115)17	at org.junit.Assert.assertEquals(Assert.java:144)18	at ExampleTest.test(ExampleTest.java:5)19	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)20	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)21	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)22	at java.lang.reflect.Method.invoke(Method.java:498)23	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)24	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)25	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)26	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)27	at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)28	at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)29	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)30	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)31	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)32	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)33	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)34	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)35	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)36	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)37	at org.junit.runners.ParentRunner.run(ParentRunner.java:363)

hasSingleFailureMatching

Using AI Code Generation

1import org.junit.Test;2import org.junit.experimental.results.ResultMatchers;3import org.junit.runner.RunWith;4import static org.junit.experimental.results.PrintableResult.testResult;5import static org.junit.experimental.results.ResultMatchers.hasSingleFailureContaining;6@RunWith(JUnitQuickcheck.class)7public class QuickCheckTest {8    public void test(int x, int y) {9        assumeTrue(x != y);10        assertEquals(x, y);11    }12    public void testFailure() {13        assertThat(testResult(QuickCheckTest.class), hasSingleFailureContaining("Falsified after"));14    }15}

hasSingleFailureMatching

Using AI Code Generation

1import org.junit.Test;2import org.junit.experimental.results.ResultMatchers;3import static org.junit.experimental.results.PrintableResult.*;4public class TestResultMatchers {5    public void testHasSingleFailureMatching() throws Exception {6        ResultMatchers.hasSingleFailureMatching(AssertionError.class);7    }8}

hasSingleFailureMatching

Using AI Code Generation

1import org.junit.experimental.results.ResultMatchers;2import static org.junit.experimental.results.PrintableResult.testResult;3import static org.junit.experimental.results.ResultMatchers.*;4import org.junit.Test;5import static org.hamcrest.MatcherAssert.assertThat;6import static org.hamcrest.CoreMatchers.*;7import org.junit.runner.JUnitCore;8import org.junit.runner.Result;9public class TestClass {10public void test1() {11Result result = JUnitCore.runClasses(TestClass1.class);12assertThat(result, hasSingleFailureMatching(isA(IllegalArgumentException.class)));13}14}15package com.test;16public class TestClass1 {17public void test1() {18throw new IllegalArgumentException();19}20}21import org.junit.experimental.results.ResultMatchers;22import static org.junit.experimental.results.PrintableResult.testResult;23import static org.junit.experimental.results.ResultMatchers.*;24import org.junit.Test;25import static org.hamcrest.MatcherAssert.assertThat;26import static org.hamcrest.CoreMatchers.*;27import org.junit.runner.JUnitCore;28import org.junit.runner.Result;29public class TestClass {

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Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
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Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.