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How to use failure method of matchers.IsFailure class

Best Spectrum code snippet using matchers.IsFailure.failure

Source:VavrMatchersTest.java

...50	}51	@Test52	void testTryMatchers() {53		assertThat(Try.success("S"), isSuccess());54		assertThat(Try.failure(new RuntimeException()), not(isSuccess()));55		assertThat(Try.success("S"), isSuccess("S"));56		assertThat(Try.success("B"), not(isSuccess("S")));57		assertThat(Try.failure(new RuntimeException()), not(isSuccess("S")));58		assertThat(Try.success("S"), isSuccess("Starts with an S", v -> v.startsWith("S")));59		assertThat(Try.success("B"), not(isSuccess("Starts with an S", v -> v.startsWith("S"))));60		assertThat(Try.failure(new RuntimeException()), not(VavrMatchers.<String> isSuccess("Starts with an S", v -> v.startsWith("S"))));61		assertThat(Try.failure(new RuntimeException()), isFailure());62		assertThat(Try.success("S"), not(isFailure()));63		assertThat(Try.failure(new IllegalStateException()), isFailure(IllegalStateException.class));64		assertThat(Try.failure(new IllegalArgumentException()), not(isFailure(IllegalStateException.class)));65		assertThat(Try.success("S"), not(isFailure(IllegalStateException.class)));66		assertThat(Try.failure(new IllegalArgumentException()), isFailure("Is a runtime exception", t -> t instanceof RuntimeException));67		assertThat(Try.failure(new IOException()), not(isFailure("Is a runtime exception", t -> t instanceof RuntimeException)));68		assertThat(Try.success("Great success!"), not(isFailure("Is a runtime exception", t -> t instanceof RuntimeException)));69	}70	@Test71	void testDescriptions() {72		assertThat(descriptionOf(isNone()), equalTo("is an empty Option"));73		assertThat(descriptionOf(isEmptyOption()), equalTo("is an empty Option"));74		assertThat(descriptionOf(isSome()), equalTo("is an Option with a value"));75		assertThat(descriptionOf(isDefinedOption()), equalTo("is an Option with a value"));76		assertThat(descriptionOf(isSome("A")), equalTo("is an Option with a value equal to \"A\""));77		assertThat(descriptionOf(isDefinedOption("A")), equalTo("is an Option with a value equal to \"A\""));78		assertThat(descriptionOf(isDefinedOption("A", v -> true)), equalTo("is an Option with a value matching \"A\""));79		assertThat(descriptionOf(isLeft()), equalTo("is a left Either"));80		assertThat(descriptionOf(isLeft("L")), equalTo("is a left Either, with value \"L\""));81		assertThat(descriptionOf(isLeft("L", v -> true)), equalTo("is a left Either, matching \"L\""));82		assertThat(descriptionOf(isRight()), equalTo("is a right Either"));83		assertThat(descriptionOf(isRight("R")), equalTo("is a right Either, with value \"R\""));84		assertThat(descriptionOf(isRight("Predicate", v -> true)), equalTo("is a right Either, matching \"Predicate\""));85		assertThat(descriptionOf(isSuccess()), equalTo("is a success"));86		assertThat(descriptionOf(isSuccess("S")), equalTo("is a success, with value \"S\""));87		assertThat(descriptionOf(VavrMatchers.<String> isSuccess("Starts with an S", v -> v.startsWith("S"))), equalTo("is a success, matching \"Starts with an S\""));88		assertThat(descriptionOf(isFailure()), equalTo("is a failure"));89		assertThat(descriptionOf(isFailure(IllegalStateException.class)), equalTo("is a failure, with exception of type \"java.lang.IllegalStateException\""));90		assertThat(descriptionOf(isFailure("Is a runtime exception", t -> t instanceof RuntimeException)), equalTo("is a failure, with throwable matching \"Is a runtime exception\""));91	}92}...

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}...

failure

Using AI Code Generation

1package matchers;2import org.hamcrest.Description;3import org.hamcrest.Factory;4import org.hamcrest.Matcher;5import org.hamcrest.TypeSafeMatcher;6public class IsFailure<T> extends TypeSafeMatcher<T> {7    private final Matcher<T> matcher;8    public IsFailure(Matcher<T> matcher) {9        this.matcher = matcher;10    }11    public boolean matchesSafely(T item) {12        return !matcher.matches(item);13    }14    public void describeTo(Description description) {15        description.appendText("failure of ").appendDescriptionOf(matcher);16    }17    protected void describeMismatchSafely(T item, Description mismatchDescription) {18        matcher.describeMismatch(item, mismatchDescription);19    }20    public static <T> Matcher<T> isFailure(Matcher<T> matcher) {21        return new IsFailure<T>(matcher);22    }23}24package matchers;25import org.hamcrest.Matcher;26import org.junit.Test;27import static matchers.IsFailure.failure;28import static org.hamcrest.CoreMatchers.is;29import static org.junit.Assert.assertThat;30public class IsFailureTest {31    public void testIsFailure() {32        Matcher<String> matcher = is("abc");33        assertThat("abc", isFailure(matcher));34    }35}36package matchers;37import org.hamcrest.Matcher;38import org.junit.Test;39import static matchers.IsFailure.failure;40import static org.hamcrest.CoreMatchers.is;41import static org.junit.Assert.assertThat;42public class IsFailureTest {43    public void testIsFailure() {44        Matcher<String> matcher = is("abc");45        assertThat("abc", failure(matcher));46    }47}48package matchers;49import org.hamcrest.Matcher;50import org.junit.Test;51import static matchers.IsFailure.failure;52import static org.hamcrest.CoreMatchers.is;53import static org.junit.Assert.assertThat;54public class IsFailureTest {55    public void testIsFailure() {56        Matcher<String> matcher = is("abc");57        assertThat("abc", failure(matcher));58    }59}

failure

Using AI Code Generation

1package matchers;2import org.hamcrest.Description;3import org.hamcrest.Factory;4import org.hamcrest.Matcher;5import org.hamcrest.TypeSafeMatcher;6public class IsFailure extends TypeSafeMatcher<Matcher<?>> {7    private final Matcher<?> matcher;8    public IsFailure(Matcher<?> matcher) {9        this.matcher = matcher;10    }11    public boolean matchesSafely(Matcher<?> item) {12        try {13            item.matches(new Object());14        } catch (AssertionError e) {15            return matcher.matches(e);16        }17        return false;18    }19    public void describeTo(Description description) {20        description.appendText("failure ").appendDescriptionOf(matcher);21    }22    public static Matcher<Matcher<?>> failure(Matcher<?> matcher) {23        return new IsFailure(matcher);24    }25    public static Matcher<Matcher<?>> failure(String message) {26        return failure(new HasMessage(message));27    }28}29package matchers;30import org.hamcrest.Description;31import org.hamcrest.TypeSafeMatcher;32public class HasMessage extends TypeSafeMatcher<AssertionError> {33    private final String message;34    public HasMessage(String message) {35        this.message = message;36    }37    public boolean matchesSafely(AssertionError error) {38        return message.equals(error.getMessage());39    }40    public void describeTo(Description description) {41        description.appendText("has message ").appendValue(message);42    }43}44package matchers;45import org.hamcrest.Matcher;46import org.junit.Test;47import static org.junit.Assert.assertThat;48import static matchers.IsFailure.failure;49import static matchers.HasMessage.hasMessage;50public class IsFailureTest {51    public void testFailure() {52        Matcher<Matcher<?>> matcher = failure("message");53        assertThat(matcher, failure(hasMessage("message")));54    }55}56package matchers;57import org.hamcrest.Description;58import org.hamcrest.TypeSafeMatcher;59public class HasMessage extends TypeSafeMatcher<AssertionError> {60    private final String message;61    public HasMessage(String message) {62        this.message = message;63    }64    public boolean matchesSafely(AssertionError error) {65        return message.equals(error.getMessage());66    }67    public void describeTo(Description description) {

failure

Using AI Code Generation

1package com.k2js.aboutmatchers.practice;2import org.testng.Assert;3import org.testng.annotations.Test;4class A{5	public static int i=10;6}7class B extends A{8	public static int i=20;9}10class C extends B{11	public static int i=30;12}13class D extends C{14	public static int i=40;15}16class E extends D{17	public static int i=50;18}19class F extends E{20	public static int i=60;21}22class G extends F{23	public static int i=70;24}25class H extends G{26	public static int i=80;27}28class I extends H{29	public static int i=90;30}31class J extends I{32	public static int i=100;33}34class K extends J{35	public static int i=110;36}37class L extends K{38	public static int i=120;39}40class M extends L{41	public static int i=130;42}43class N extends M{44	public static int i=140;45}46class O extends N{47	public static int i=150;48}49class P extends O{50	public static int i=160;51}52class Q extends P{53	public static int i=170;54}55class R extends Q{56	public static int i=180;57}58class S extends R{59	public static int i=190;60}61class T extends S{62	public static int i=200;63}64class U extends T{65	public static int i=210;66}67class V extends U{68	public static int i=220;69}70class W extends V{71	public static int i=230;72}73class X extends W{74	public static int i=240;75}76class Y extends X{77	public static int i=250;78}79class Z extends Y{80	public static int i=260;81}82class AA extends Z{83	public static int i=270;84}85class BB extends AA{86	public static int i=280;87}88class CC extends BB{89	public static int i=290;90}91class DD extends CC{92	public static int i=300;93}94class EE extends DD{95	public static int i=310;96}97class FF extends EE{98	public static int i=320;99}100class GG extends FF{101	public static int i=330;102}103class HH extends GG{104	public static int i=340;105}106class II extends HH{107	public static int i=350;108}109class JJ extends II{110	public static int i=360;111}112class KK extends JJ{

failure

Using AI Code Generation

1package matchers;2import org.hamcrest.Description;3import org.hamcrest.Matcher;4import org.hamcrest.StringDescription;5import static org.hamcrest.CoreMatchers.is;6public class IsFailureTest {7    public static void main(String[] args) {8        Matcher<String> matcher = is("Hello");9        Description description = new StringDescription();10        matcher.describeMismatch("World", description);11        System.out.println(description.toString());12        System.out.println(IsFailure.failure(matcher, "World"));13    }14}

failure

Using AI Code Generation

1package org.junit.matchers;2import org.junit.Test;3import static org.junit.matchers.IsFailure.failure;4import static org.junit.matchers.IsFailure.failureMessage;5import static org.junit.matchers.IsFailure.hasFailure;6import static org.junit.matchers.IsFailure.hasFailureMessage;7import static org.junit.matchers.IsFailure.hasNoFailure;8import static org.junit.matchers.IsFailure.hasNoFailureMessage;9import static org.junit.Assert.assertThat;10import static org.junit.Assert.fail;11public class IsFailureTest {12    public void failureShouldBeFailure() {13        assertThat(failure(), hasFailure());14    }15    public void failureShouldHaveMessage() {16        assertThat(failure(), hasFailureMessage("expected: <true> but was: <false>"));17    }18    public void failureShouldNotBeNoFailure() {19        assertThat(failure(), hasNoFailureMessage());20    }21    public void noFailureShouldNotBeFailure() {22        assertThat(failureMessage("expected: <true> but was: <false>"), hasNoFailure());23    }24    public void noFailureShouldNotHaveMessage() {25        assertThat(failureMessage("expected: <true> but was: <false>"), hasNoFailureMessage());26    }27    public void noFailureShouldBeNoFailure() {28        assertThat(failureMessage("expected: <true> but was: <false>"), hasNoFailureMessage());29    }30    public void noFailureShouldNotHaveWrongMessage() {31        assertThat(failureMessage("expected: <true> but was: <false>"), hasNoFailureMessage("expected: <true> but was: <false>"));32    }33    public void noFailureShouldHaveMessage() {34        assertThat(failureMessage("expected: <true> but was: <false>"), hasFailureMessage("expected: <true> but was: <false>"));35    }36    public void shouldFailIfFailureDoesNotHaveMessage() {37        try {38            assertThat(failure(), hasFailureMessage("expected: <true> but was: <false>"));39            fail("should throw AssertionError");40        } catch (AssertionError e) {41            assertThat(e.getMessage(), hasFailureMessage("expected: <true> but was: <false>"));42        }43    }

failure

Using AI Code Generation

1package matchers;2import org.hamcrest.*;3import org.hamcrest.core.*;4import org.hamcrest.text.*;5import org.hamcrest.number.*;6import org.hamcrest.collection.*;7import org.hamcrest.object.*;8import org.hamcrest.beans.*;9import org.hamcrest.date.*;10import java.util.*;11import java.util.regex.*;12public class IsFailure {13   public static void main(String[] args) {14      Matcher<Integer> matcher = IsEqual.equalTo(100);15      Matcher<Integer> matcher1 = IsEqual.equalTo(100);16      Matcher<Integer> matcher2 = IsEqual.equalTo(200);17      Matcher<Integer> matcher3 = IsEqual.equalTo(200);18      assertThat(100, matcher);19      assertThat(100, matcher1);20      assertThat(200, matcher2);21      assertThat(200, matcher3);22   }23}24package matchers;25import org.hamcrest.*;26import org.hamcrest.core.*;27import org.hamcrest.text.*;28import org.hamcrest.number.*;29import org.hamcrest.collection.*;30import org.hamcrest.object.*;31import org.hamcrest.beans.*;32import org.hamcrest.date.*;33import java.util.*;34import java.util.regex.*;35public class IsFailure {36   public static void main(String[] args) {37      Matcher<Integer> matcher = IsEqual.equalTo(100);38      Matcher<Integer> matcher1 = IsEqual.equalTo(100);39      Matcher<Integer> matcher2 = IsEqual.equalTo(200);40      Matcher<Integer> matcher3 = IsEqual.equalTo(200);41      assertThat(100, matcher);42      assertThat(100, matcher1);43      assertThat(200, matcher2);44      assertThat(200, matcher3);45   }46}47package matchers;48import org.hamcrest.*;49import org.hamcrest.core.*;50import org.hamcrest.text.*;51import org.hamcrest.number.*;52import org.hamcrest.collection.*;53import org.hamcrest.object.*;54import org.hamcrest.beans.*;55import org.hamcrest.date.*;56import java.util.*;57import java.util.regex.*;58public class IsFailure {59   public static void main(String[] args) {60      Matcher<Integer> matcher = IsEqual.equalTo(100);61      Matcher<Integer> matcher1 = IsEqual.equalTo(100);62      Matcher<Integer> matcher2 = IsEqual.equalTo(200);63      Matcher<Integer> matcher3 = IsEqual.equalTo(200);64      assertThat(100, matcher);65      assertThat(100, matcher1);66      assertThat(200, matcher2);67      assertThat(200, matcher3);68   }69}

failure

Using AI Code Generation

1import org.junit.Test;2import static org.hamcrest.MatcherAssert.assertThat;3import static org.hamcrest.Matchers.*;4public class TestClass {5   public void test1() {6      assertThat(1, is(2));7      assertThat("abc", is("abc"));8   }9}10at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)11at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)12at TestClass.test1(TestClass.java:10)13import org.junit.Test;14import static org.hamcrest.MatcherAssert.assertThat;15import static org.hamcrest.Matchers.*;16import org.hamcrest.*;17public class TestClass {18   public void test1() {19      assertThat(1, is(2));20      assertThat("abc", is("abc"));21   }22}23at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:20)24at org.hamcrest.MatcherAssert.assertThat(MatcherAssert.java:8)25at TestClass.test1(TestClass.java:10)26import org.junit.Test;27import static org.hamcrest.MatcherAssert.assertThat;28import static org.hamcrest.Matchers.*;29import org.hamcrest.*;30public class TestClass {31   public void test1() {32      assertThat(1, is(2));33      assertThat("abc", is("abc"));34   }35}

failure

Using AI Code Generation

1import org.junit.Test;2import static org.junit.Assert.*;3import org.junit.matchers.JUnitMatchers;4import org.hamcrest.Matcher;5import org.hamcrest.MatcherAssert;6import org.hamcrest.Matchers;7import org.hamcrest.core.Is;8import org.hamcrest.core.IsNot;9import org.hamcrest.core.IsEqual;10import org.hamcrest.core.IsSame;11import org.hamcrest.core.IsInstanceOf;12import org.hamcrest.core.IsNot;13import org.hamcrest.core.IsNull;14import org.hamcrest.core.IsCollectionContaining;15import org.hamcrest.core.StringContains;16import org.hamcrest.core.StringEndsWith;17import org.hamcrest.core.StringStartsWith;18import org.hamcrest.core.StringContainsInOrder;19import org.hamcrest.core.IsNot;20import org.hamcrest.core.Is;

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