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How to use IsFailure class of matchers package

Best Spectrum code snippet using matchers.IsFailure

Source:ResultShould.java

1package net.aokv.railway.result;2import static net.aokv.railway.result.matchers.ResultMatcher.hasValue;3import static net.aokv.railway.result.matchers.ResultMatcher.isFailure;4import static net.aokv.railway.result.matchers.ResultMatcher.isFailureWithMessage;5import static net.aokv.railway.result.matchers.ResultMatcher.isSuccess;6import static org.hamcrest.MatcherAssert.assertThat;7import static org.junit.jupiter.api.Assertions.assertThrows;8import java.util.Optional;9import org.junit.jupiter.api.Test;10import net.aokv.railway.message.Message;11public class ResultShould12{13	private static final String THE_VALUE = "The value";14	private static final String OTHER_VALUE = "Other value";15	private static final Message THE_ERROR = Message.withError("The error");16	private static final Result<String, Message> THE_RESULT = Result.withValue(THE_VALUE);17	private static final Result<String, Message> OTHER_RESULT = Result.withValue(OTHER_VALUE);18	private static final Result<String, Message> FAILED_RESULT = Result.withError(THE_ERROR);19	private static final Result<Void, Message> RESULT_WITHOUT_VALUE = Result.withoutValue();20	@Test21	public void notAcceptNullAsValue()22	{23		assertThrows(IllegalArgumentException.class, () -> Result.withValue(null));24	}25	@Test26	public void notAcceptNullAsError()27	{28		final Message e = null;29		assertThrows(IllegalArgumentException.class, () -> Result.withError(e));30	}31	@Test32	public void notAcceptNullAsErrorMessage()33	{34		final String e = null;35		assertThrows(IllegalArgumentException.class, () -> Result.withError(e));36	}37	@Test38	public void beCreatedFromOptional()39	{40		final Result<String, Message> result = Result.with(Optional.of(THE_VALUE), THE_ERROR);41		assertThat(result, isSuccess());42		assertThat(result, hasValue(THE_VALUE));43	}44	@Test45	public void beCreatedFromEmptyOptional()46	{47		final Result<String, Message> result = Result.with(Optional.empty(), THE_ERROR);48		assertThat(result, isFailure());49		assertThat(result, isFailureWithMessage(THE_ERROR));50	}51	@Test52	public void beCreatedFromValue()53	{54		final Result<String, Message> result = Result.with(THE_VALUE, THE_ERROR);55		assertThat(result, isSuccess());56		assertThat(result, hasValue(THE_VALUE));57	}58	@Test59	public void beCreatedFromNonExistingValue()60	{61		final Result<String, Message> result = Result.with(null, THE_ERROR);62		assertThat(result, isFailure());63		assertThat(result, isFailureWithMessage(THE_ERROR));64	}65	@Test66	public void beCreatedFromNonExistingOptional()67	{68		final Optional<String> o = null;69		final Result<String, Message> result = Result.with(o, THE_ERROR);70		assertThat(result, isFailure());71		assertThat(result, isFailureWithMessage(THE_ERROR));72	}73	@Test74	public void extractValueFromOptional()75	{76		assertThat(Result.withValue(Optional.of("Value"))77				.ifValueIsPresent(String.class, THE_ERROR), hasValue("Value"));78		assertThat(Result.withValue(Optional.empty())79				.ifValueIsPresent(String.class, THE_ERROR), isFailureWithMessage(THE_ERROR));80		assertThat(Result.withValue("NotAnOptional")81				.ifValueIsPresent(String.class, THE_ERROR), isFailureWithMessage(THE_ERROR));82	}83	@Test84	public void beCombinedWithSuccessfulResults()85	{86		assertThat(THE_RESULT.combine(OTHER_RESULT), isSuccess());87		assertThat(THE_RESULT.combine(RESULT_WITHOUT_VALUE), isSuccess());88		assertThat(OTHER_RESULT.combine(THE_RESULT), isSuccess());89		assertThat(RESULT_WITHOUT_VALUE.combine(THE_RESULT), isSuccess());90	}91	@Test92	public void beCombinedWithFailedResults()93	{94		assertThat(FAILED_RESULT.combine(THE_RESULT), isFailure());95		assertThat(FAILED_RESULT.combine(RESULT_WITHOUT_VALUE), isFailure());96		assertThat(FAILED_RESULT.combine(FAILED_RESULT), isFailure());97		assertThat(THE_RESULT.combine(FAILED_RESULT), isFailure());98		assertThat(RESULT_WITHOUT_VALUE.combine(FAILED_RESULT), isFailure());99	}100}...

Source:TryMatchersTest.java

1package io.atlassian.fugue.hamcrest;2import org.junit.Test;3import static io.atlassian.fugue.Try.failure;4import static io.atlassian.fugue.Try.successful;5import static io.atlassian.fugue.hamcrest.TryMatchers.isFailure;6import static io.atlassian.fugue.hamcrest.TryMatchers.isSuccessful;7import static org.hamcrest.Matchers.*;8import static org.hamcrest.MatcherAssert.assertThat;9public class TryMatchersTest {10  @Test public void shouldMatchAnyFailure() {11    assertThat(failure(new RuntimeException("any")), TryMatchers.isFailure());12  }13  @Test public void shouldNotMatchASuccessWhenExpectingAnyFailure() {14    assertThat(successful("a success"), not(isFailure()));15  }16  @Test public void shouldMatchASpecificFailure() {17    assertThat(failure(new RuntimeException("any")), TryMatchers.isFailure(any(Exception.class)));18  }19  @Test public void shouldNotMatchASuccessWhenExpectingASpecificFailure() {20    assertThat(successful("a success"), not(isFailure(any(Exception.class))));21  }22  @Test public void shouldNotMatchADifferentFailure() {23    assertThat(failure(new IllegalArgumentException("wrong exception")),24      not(TryMatchers.isFailure(is(new IllegalStateException("expected exception")))));25  }26  @Test public void shouldMatchASuccessfulTry() {27    assertThat(successful("anyResult"), isSuccessful(isA(String.class)));28  }29  @Test public void shouldMatchASuccessfulTryWithASupertypeMatcher() {30    assertThat(successful("anyResult"), isSuccessful(isA(Object.class)));31  }32  @Test public void shouldNotMatchAFailureWhenExpectingASuccess() {33    assertThat(failure(new RuntimeException("any")), not(isSuccessful(any(Object.class))));34  }35}...

IsFailure

Using AI Code Generation

1import org.hamcrest.core.IsFailure;2import org.hamcrest.core.IsNot;3import org.junit.Test;4import static org.hamcrest.MatcherAssert.assertThat;5import static org.hamcrest.core.Is.is;6import static org.hamcrest.core.IsNot.not;7import static org.hamcrest.core.IsSame.sameInstance;8import static org.hamcrest.core.IsNull.nullValue;9import static org.hamcrest.core.IsNull.notNullValue;10public class IsFailureTest {11    public void test() {12        assertThat("a", is(not("b")));13        assertThat("a", is(not(nullValue())));14        assertThat("a", is(not(notNullValue())));15        assertThat("a", is(not(sameInstance("a"))));16        assertThat("a", not(IsFailure.failure()));17        assertThat("a", IsNot.not(IsFailure.failure()));18    }19}

IsFailure

Using AI Code Generation

1import org.hamcrest.core.IsFailure;2import org.hamcrest.core.IsNot;3import org.junit.Assert;4import org.junit.Test;5import static org.hamcrest.core.Is.is;6import static org.hamcrest.core.IsNot.not;7import static org.hamcrest.core.StringContains.containsString;8import static org.junit.Assert.assertThat;9import static org.junit.Assert.fail;10public class IsFailureTest {11    public void testIsFailure() {12        try {13            fail("This is a failure");14        } catch (AssertionError e) {15            assertThat(e, is(IsFailure.failure()));16        }17    }18    public void testIsNotFailure() {19        try {20            assertThat("This is not a failure", is(not(IsFailure.failure())));21        } catch (AssertionError e) {22            fail("This should not have failed");23        }24    }25    public void testIsFailureWithMatcher() {26        try {27            fail("This is a failure");28        } catch (AssertionError e) {29            assertThat(e, is(IsFailure.failure(containsString("failure"))));30        }31    }32    public void testIsNotFailureWithMatcher() {33        try {34            fail("This is a failure");35        } catch (AssertionError e) {36            assertThat(e, is(not(IsFailure.failure(containsString("success")))));37        }38    }39}

IsFailure

Using AI Code Generation

1import org.hamcrest.Matcher;2import org.hamcrest.MatcherAssert;3import org.hamcrest.Matchers;4import org.junit.Test;5public class IsFailureTest {6    public void testIsFailure() {7        MatcherAssert.assertThat(1, Matchers.isFailure());8    }9}10import org.hamcrest.Matcher;11import org.hamcrest.MatcherAssert;12import org.hamcrest.Matchers;13import org.junit.Test;14public class IsFailureTest {15    public void testIsFailure() {16        MatcherAssert.assertThat(1, Matchers.isFailure());17    }18}19import org.hamcrest.Matcher;20import org.hamcrest.MatcherAssert;21import org.hamcrest.Matchers;22import org.junit.Test;23public class IsFailureTest {24    public void testIsFailure() {25        MatcherAssert.assertThat(1, Matchers.isFailure());26    }27}28import org.hamcrest.Matcher;29import org.hamcrest.MatcherAssert;30import org.hamcrest.Matchers;31import org.junit.Test;32public class IsFailureTest {33    public void testIsFailure() {34        MatcherAssert.assertThat(1, Matchers.isFailure());35    }36}37import org.hamcrest.Matcher;38import org.hamcrest.MatcherAssert;39import org.hamcrest.Matchers;40import org.junit.Test;41public class IsFailureTest {42    public void testIsFailure() {43        MatcherAssert.assertThat(1, Matchers.isFailure());44    }45}46import org.hamcrest.Matcher;47import org.hamcrest.MatcherAssert;48import org.hamcrest.Matchers;49import org.junit.Test;50public class IsFailureTest {51    public void testIsFailure() {52        MatcherAssert.assertThat(1, Matchers.isFailure());53    }54}55import org.hamcrest.Matcher;56import org.hamcrest.MatcherAssert;57import org.hamcrest.Matchers;58import org.junit.Test;59public class IsFailureTest {60    public void testIsFailure() {61        MatcherAssert.assertThat(1, Matchers.isFailure());62    }63}

IsFailure

Using AI Code Generation

1import static org.hamcrest.Matchers.*;2import static org.junit.Assert.assertThat;3import org.junit.Test;4public class IsFailureTest {5    public void testIsFailure() {6        assertThat(1, is(2));7    }8}

IsFailure

Using AI Code Generation

1import org.hamcrest.Matcher;2import org.hamcrest.Matchers;3import org.junit.Test;4import static org.junit.Assert.assertThat;5import static org.hamcrest.Matchers.*;6public class IsFailureTest {7   public void testIsFailure() {8      try {9         int i = 1/0;10      } catch (Exception e) {11         assertThat(e, is(IsFailure.instanceOf(ArithmeticException.class)));12      }13   }14}15	at IsFailureTest.testIsFailure(IsFailureTest.java:14)16	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)17	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)18	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)19	at java.lang.reflect.Method.invoke(Method.java:597)20	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)21	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)22	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)23	at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)24	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:263)25	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:68)26	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:47)27	at org.junit.runners.ParentRunner$3.run(ParentRunner.java:231)28	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:60)29	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:229)30	at org.junit.runners.ParentRunner.access$000(ParentRunner.java:50)31	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:222)32	at org.junit.runners.ParentRunner.run(ParentRunner.java:292)33	at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)34	at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)35	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)36	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)37	at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner

IsFailure

Using AI Code Generation

1import org.hamcrest.*;2import org.hamcrest.core.*;3import static org.hamcrest.MatcherAssert.assertThat;4public class IsFailure {5    public static void main(String[] args) {6        try {7            assertThat("abc", Is.is("def"));8        } catch (AssertionError assertionError) {9            System.out.println("Assertion failed");10        }11    }12}

IsFailure

Using AI Code Generation

1import org.hamcrest.*;2import org.junit.*;3import static org.hamcrest.MatcherAssert.assertThat;4import static org.hamcrest.Matchers.*;5public class MatcherIsFailureTest {6    public void testIsFailure() {7        assertThat(new IsFailure(), instanceOf(IsFailure.class));8    }9}10org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)11org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)12MatcherIsFailureTest.testIsFailure(MatcherIsFailureTest.java:11)13sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)14sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)15sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)16java.lang.reflect.Method.invoke(Method.java:606)17org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)18org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)19org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)20org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)21org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)22org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)23org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)24org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)25org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)26org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)27org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)28org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)29org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)30org.junit.runners.ParentRunner.run(ParentRunner.java:363)31org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50)32org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)33org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)34org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)35org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)36org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(R

IsFailure

Using AI Code Generation

1import org.hamcrest.*;2import org.junit.*;3import static org.hamcrest.MatcherAssert.assertThat;4import static org.hamcrest.Matchers.*;5public class IsFailureTest {6public void testIsFailure() {7assertThat(10, is(not(10)));8}9}

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