Test your AI Agents with the all-new Agent to Agent Testing Platform.Learn More

How to use describeMismatchSafely method of org.hamcrest.TypeSafeMatcher class

Best junit code snippet using org.hamcrest.TypeSafeMatcher.describeMismatchSafely

Source:ElasticsearchMatchers.java

...34        protected boolean matchesSafely(SearchHit searchHit) {35            return searchHit.getId().equals(id);36        }37        @Override38        public void describeMismatchSafely(final SearchHit searchHit, final Description mismatchDescription) {39            mismatchDescription.appendText(" was ").appendValue(searchHit.getId());40        }41        @Override42        public void describeTo(final Description description) {43            description.appendText("searchHit id should be ").appendValue(id);44        }45    }46    public static class SearchHitHasTypeMatcher extends TypeSafeMatcher<SearchHit> {47        private String type;48        public SearchHitHasTypeMatcher(String type) {49            this.type = type;50        }51        @Override52        public boolean matchesSafely(final SearchHit searchHit) {53            return searchHit.getType().equals(type);54        }55        @Override56        public void describeMismatchSafely(final SearchHit searchHit, final Description mismatchDescription) {57            mismatchDescription.appendText(" was ").appendValue(searchHit.getType());58        }59        @Override60        public void describeTo(final Description description) {61            description.appendText("searchHit type should be ").appendValue(type);62        }63    }64    public static class SearchHitHasIndexMatcher extends TypeSafeMatcher<SearchHit> {65        private String index;66        public SearchHitHasIndexMatcher(String index) {67            this.index = index;68        }69        @Override70        public boolean matchesSafely(final SearchHit searchHit) {71            return searchHit.getIndex().equals(index);72        }73        @Override74        public void describeMismatchSafely(final SearchHit searchHit, final Description mismatchDescription) {75            mismatchDescription.appendText(" was ").appendValue(searchHit.getIndex());76        }77        @Override78        public void describeTo(final Description description) {79            description.appendText("searchHit index should be ").appendValue(index);80        }81    }82    public static class SearchHitHasScoreMatcher extends TypeSafeMatcher<SearchHit> {83        private float score;84        public SearchHitHasScoreMatcher(float score) {85            this.score = score;86        }87        @Override88        protected boolean matchesSafely(SearchHit searchHit) {89            return searchHit.getScore() == score;90        }91        @Override92        public void describeMismatchSafely(final SearchHit searchHit, final Description mismatchDescription) {93            mismatchDescription.appendText(" was ").appendValue(searchHit.getScore());94        }95        @Override96        public void describeTo(final Description description) {97            description.appendText("searchHit score should be ").appendValue(score);98        }99    }100    public static class HasPropertyLambdaMatcher<T, V> extends FeatureMatcher<T, V> {101        private final Function<? super T, ? extends V> property;102        private HasPropertyLambdaMatcher(Matcher<? super V> subMatcher, Function<? super T, ? extends V> property) {103            super(subMatcher, "object with", "lambda");104            this.property = property;105        }106        @Override...

Source:IndexMatchers.java

...35                description.appendText("indexName should be ");36                notEmptyString.describeTo(description);37            }38            @Override39            public void describeMismatchSafely(Index index, Description description) {40                notEmptyString.describeMismatch(index.getIndexName(), description);41            }42        };43    }44    public static Matcher<Index> hasName(final String indexName) {45        return new TypeSafeMatcher<Index>() {46            @Override47            public boolean matchesSafely(Index index) {48                return Objects.equals(indexName, index.getIndexName());49            }50            @Override51            public void describeTo(Description description) {52                description.appendText("indexName should be ").appendValue(indexName);53            }54            @Override55            public void describeMismatchSafely(Index index, Description description) {56                description.appendText("was ").appendValue(index.getIndexName());57            }58        };59    }60    public static Matcher<Index> hasTable(final String tableName) {61        return new TypeSafeMatcher<Index>() {62            @Override63            public boolean matchesSafely(Index index) {64                return Objects.equals(tableName, index.getTableName());65            }66            @Override67            public void describeTo(Description description) {68                description.appendText("tableName should be ").appendValue(tableName);69            }70            @Override71            public void describeMismatchSafely(Index index, Description description) {72                description.appendText("was ").appendValue(index.getTableName());73            }74        };75    }76    public static Matcher<Index> hasFieldsInOrder(final List<String> fieldNames) {77        final Matcher<Iterable<? extends String>> contains = contains(fieldNames.toArray(new String[fieldNames.size()]));78        return new TypeSafeMatcher<Index>() {79            @Override80            public boolean matchesSafely(Index index) {81                return contains.matches(index.getFieldNames());82            }83            @Override84            public void describeTo(Description description) {85                description.appendText("fieldNames should be an ");86                contains.describeTo(description);87            }88            @Override89            public void describeMismatchSafely(Index index, Description description) {90                contains.describeMismatch(index.getFieldNames(), description);91            }92        };93    }94}...

Source:StacktracePrintingMatcher.java

...11    /* JADX DEBUG: Failed to find minimal casts for resolve overloaded methods, cast all args instead12     method: MutableMD:(java.lang.Throwable, org.hamcrest.Description):void13     arg types: [T, org.hamcrest.Description]14     candidates:15      org.junit.internal.matchers.StacktracePrintingMatcher.describeMismatchSafely(java.lang.Object, org.hamcrest.Description):void16      MutableMD:(java.lang.Object, org.hamcrest.Description):void17      MutableMD:(java.lang.Throwable, org.hamcrest.Description):void */18    /* access modifiers changed from: protected */19    @Override // org.hamcrest.TypeSafeMatcher20    public /* bridge */ /* synthetic */ void describeMismatchSafely(Object obj, Description description) {21        describeMismatchSafely((Throwable) ((Throwable) obj), description);22    }23    /* access modifiers changed from: protected */24    @Override // org.hamcrest.TypeSafeMatcher25    public /* bridge */ /* synthetic */ boolean matchesSafely(Object obj) {26        return matchesSafely((Throwable) ((Throwable) obj));27    }28    public StacktracePrintingMatcher(Matcher<T> throwableMatcher2) {29        this.throwableMatcher = throwableMatcher2;30    }31    @Override // org.hamcrest.SelfDescribing32    public void describeTo(Description description) {33        this.throwableMatcher.describeTo(description);34    }35    /* access modifiers changed from: protected */36    public boolean matchesSafely(T item) {37        return this.throwableMatcher.matches(item);38    }39    /* access modifiers changed from: protected */40    public void describeMismatchSafely(T item, Description description) {41        this.throwableMatcher.describeMismatch(item, description);42        description.appendText("\nStacktrace was: ");43        description.appendText(readStacktrace(item));44    }45    private String readStacktrace(Throwable throwable) {46        StringWriter stringWriter = new StringWriter();47        throwable.printStackTrace(new PrintWriter(stringWriter));48        return stringWriter.toString();49    }50    @Factory51    public static <T extends Throwable> Matcher<T> isThrowable(Matcher<T> throwableMatcher2) {52        return new StacktracePrintingMatcher(throwableMatcher2);53    }54    @Factory...

Source:Matchers.java

...5class Matchers {6    static Matcher<? super BoardPosition> position(String column, String row) {7        return new TypeSafeMatcher<>() {8            @Override9            protected void describeMismatchSafely(BoardPosition item, Description mismatchDescription) {10                mismatchDescription.appendText(" was ").appendValue(item);11            }12            @Override13            protected boolean matchesSafely(BoardPosition position) {14                return position.isValid() && position.row().equals(row) && position.column().equals(column);15            }16            @Override17            public void describeTo(Description description) {18                description.appendText(String.format("%s%d", column, row));19            }20        };21    }22    static Matcher<? super BoardPosition> invalidPosition() {23        return new TypeSafeMatcher<>() {24            @Override25            protected void describeMismatchSafely(BoardPosition item, Description mismatchDescription) {26                mismatchDescription.appendText(" was ").appendValue(item);27            }28            @Override29            protected boolean matchesSafely(BoardPosition position) {30                return !position.isValid();31            }32            @Override33            public void describeTo(Description description) {34                description.appendText("position should be invalid position");35            }36        };37    }38    @SafeVarargs39    static Matcher<? super Path> path(Matcher<? super BoardPosition>... positions) {40        var baseMatcher = org.hamcrest.Matchers.contains(positions);41        return new TypeSafeMatcher<>() {42            @Override43            protected boolean matchesSafely(Path boardPositions) {44                return baseMatcher.matches(boardPositions);45            }46            @Override47            public void describeTo(Description description) {48                baseMatcher.describeTo(description);49            }50            @Override51            protected void describeMismatchSafely(Path item, Description mismatchDescription) {52                baseMatcher.describeMismatch(item, mismatchDescription);53            }54        };55    }56}...

Source:ThrowableCauseMatcher.java

...9    /* JADX DEBUG: Failed to find minimal casts for resolve overloaded methods, cast all args instead10     method: MutableMD:(java.lang.Throwable, org.hamcrest.Description):void11     arg types: [T, org.hamcrest.Description]12     candidates:13      org.junit.internal.matchers.ThrowableCauseMatcher.describeMismatchSafely(java.lang.Object, org.hamcrest.Description):void14      MutableMD:(java.lang.Object, org.hamcrest.Description):void15      MutableMD:(java.lang.Throwable, org.hamcrest.Description):void */16    /* access modifiers changed from: protected */17    @Override // org.hamcrest.TypeSafeMatcher18    public /* bridge */ /* synthetic */ void describeMismatchSafely(Object obj, Description description) {19        describeMismatchSafely((Throwable) ((Throwable) obj), description);20    }21    /* access modifiers changed from: protected */22    @Override // org.hamcrest.TypeSafeMatcher23    public /* bridge */ /* synthetic */ boolean matchesSafely(Object obj) {24        return matchesSafely((Throwable) ((Throwable) obj));25    }26    public ThrowableCauseMatcher(Matcher<? extends Throwable> causeMatcher2) {27        this.causeMatcher = causeMatcher2;28    }29    @Override // org.hamcrest.SelfDescribing30    public void describeTo(Description description) {31        description.appendText("exception with cause ");32        description.appendDescriptionOf(this.causeMatcher);33    }34    /* access modifiers changed from: protected */35    public boolean matchesSafely(T item) {36        return this.causeMatcher.matches(item.getCause());37    }38    /* access modifiers changed from: protected */39    public void describeMismatchSafely(T item, Description description) {40        description.appendText("cause ");41        this.causeMatcher.describeMismatch(item.getCause(), description);42    }43    @Factory44    public static <T extends Throwable> Matcher<T> hasCause(Matcher<? extends Throwable> matcher) {45        return new ThrowableCauseMatcher(matcher);46    }47}...

Source:ThrowableMessageMatcher.java

...9    /* JADX DEBUG: Failed to find minimal casts for resolve overloaded methods, cast all args instead10     method: MutableMD:(java.lang.Throwable, org.hamcrest.Description):void11     arg types: [T, org.hamcrest.Description]12     candidates:13      org.junit.internal.matchers.ThrowableMessageMatcher.describeMismatchSafely(java.lang.Object, org.hamcrest.Description):void14      MutableMD:(java.lang.Object, org.hamcrest.Description):void15      MutableMD:(java.lang.Throwable, org.hamcrest.Description):void */16    /* access modifiers changed from: protected */17    @Override // org.hamcrest.TypeSafeMatcher18    public /* bridge */ /* synthetic */ void describeMismatchSafely(Object obj, Description description) {19        describeMismatchSafely((Throwable) ((Throwable) obj), description);20    }21    /* access modifiers changed from: protected */22    @Override // org.hamcrest.TypeSafeMatcher23    public /* bridge */ /* synthetic */ boolean matchesSafely(Object obj) {24        return matchesSafely((Throwable) ((Throwable) obj));25    }26    public ThrowableMessageMatcher(Matcher<String> matcher2) {27        this.matcher = matcher2;28    }29    @Override // org.hamcrest.SelfDescribing30    public void describeTo(Description description) {31        description.appendText("exception with message ");32        description.appendDescriptionOf(this.matcher);33    }34    /* access modifiers changed from: protected */35    public boolean matchesSafely(T item) {36        return this.matcher.matches(item.getMessage());37    }38    /* access modifiers changed from: protected */39    public void describeMismatchSafely(T item, Description description) {40        description.appendText("message ");41        this.matcher.describeMismatch(item.getMessage(), description);42    }43    @Factory44    public static <T extends Throwable> Matcher<T> hasMessage(Matcher<String> matcher2) {45        return new ThrowableMessageMatcher(matcher2);46    }47}...

Source:TypeSafeMatcher.java

...14    protected TypeSafeMatcher(ReflectiveTypeFinder typeFinder) {15        this.expectedType = typeFinder.findExpectedType(getClass());16    }17    /* access modifiers changed from: protected */18    public void describeMismatchSafely(T item, Description mismatchDescription) {19        super.describeMismatch(item, mismatchDescription);20    }21    @Override // org.hamcrest.Matcher22    public final boolean matches(Object item) {23        return item != null && this.expectedType.isInstance(item) && matchesSafely(item);24    }25    @Override // org.hamcrest.BaseMatcher, org.hamcrest.Matcher26    public final void describeMismatch(Object item, Description description) {27        if (item == null) {28            super.describeMismatch(null, description);29        } else if (!this.expectedType.isInstance(item)) {30            description.appendText("was a ").appendText(item.getClass().getName()).appendText(" (").appendValue(item).appendText(")");31        } else {32            describeMismatchSafely(item, description);33        }34    }35}...

Source:438.java

...

describeMismatchSafely

Using AI Code Generation

1public class TypeSafeMatcherTest {2    public void testTypeSafeMatcher() {3        Matcher<String> matcher = new TypeSafeMatcher<String>() {4            public void describeTo(Description description) {5                description.appendText("a string with length 5");6            }7            protected boolean matchesSafely(String item) {8                return item.length() == 5;9            }10        };11        assertThat("abcde", matcher);12    }13}14org.hamcrest.MatcherAssert.assertThat(Matcher, Matcher)15public static <T> void assertThat(T actual, Matcher<T> matcher)

describeMismatchSafely

Using AI Code Generation

1public class TypeSafeMatcherTest {2    public void testTypeSafeMatcher() {3        Matcher<String> matcher = new TypeSafeMatcher<String>() {4            public void describeTo(Description description) {5                description.appendText("contains string");6            }7            protected boolean matchesSafely(String item) {8                return item.contains("string");9            }10            protected void describeMismatchSafely(String item, Description mismatchDescription) {11                mismatchDescription.appendText("was ").appendValue(item);12            }13        };14        assertThat("some string", matcher);15        assertThat("some string", not(matcher));16    }17}18org.hamcrest.TypeSafeMatcherTest > testTypeSafeMatcher() PASSED

describeMismatchSafely

Using AI Code Generation

1import static org.hamcrest.MatcherAssert.assertThat;2import static org.hamcrest.Matchers.is;3import org.hamcrest.Description;4import org.hamcrest.TypeSafeMatcher;5import org.junit.Test;6public class TypeSafeMatcherTest {7    public void testTypeSafeMatcher() {8        assertThat("Hello", is(new TypeSafeMatcher<String>() {9            public void describeTo(Description description) {10                description.appendText("is \"Hello\"");11            }12            protected boolean matchesSafely(String item) {13                return "Hello".equals(item);14            }15            protected void describeMismatchSafely(String item, Description mismatchDescription) {16                mismatchDescription.appendText("was \"").appendText(item).appendText("\"");17            }18        }));19    }20}21org.hamcrest.core.Is.is("Hello")

describeMismatchSafely

Using AI Code Generation

1package com.zetcode;2import org.hamcrest.Description;3import org.hamcrest.Matcher;4import org.hamcrest.StringDescription;5import org.hamcrest.TypeSafeMatcher;6public class DescribeMatcherEx {7    public static void main(String[] args) {8        Matcher<String> m = new TypeSafeMatcher<String>() {9            public void describeTo(Description description) {10                description.appendText("a string of length 5");11            }12            protected boolean matchesSafely(String item) {13                return item.length() == 5;14            }15            protected void describeMismatchSafely(String item,16                    Description mismatchDescription) {17                mismatchDescription.appendText("was ").appendValue(item);18            }19        };20        StringDescription description = new StringDescription();21        m.describeMismatch("hello", description);22        System.out.println(description.toString());23    }24}

describeMismatchSafely

Using AI Code Generation

1public class CustomMismatchDescription extends TypeSafeMatcher<String> {2    private String expected;3    public CustomMismatchDescription(String expected) {4        this.expected = expected;5    }6    protected boolean matchesSafely(String item) {7        return expected.equals(item);8    }9    protected void describeMismatchSafely(String item, Description mismatchDescription) {10        mismatchDescription.appendText("was ").appendValue(item);11    }12    public void describeTo(Description description) {13        description.appendText("matches ").appendValue(expected);14    }15}16public class CustomMismatchDescriptionTest {17    public void testCustomMismatchDescription() {18        assertThat("foo", new CustomMismatchDescription("bar"));19    }20}21public class CustomMismatchDescription extends BaseMatcher<String> {22    private String expected;23    public CustomMismatchDescription(String expected) {24        this.expected = expected;25    }26    public boolean matches(Object item) {27        return expected.equals(item);28    }29    public void describeMismatch(Object item, Description mismatchDescription) {30        mismatchDescription.appendText("was ").appendValue(item);31    }32    public void describeTo(Description description) {33        description.appendText("matches ").appendValue(expected);34    }35}36public class CustomMismatchDescriptionTest {37    public void testCustomMismatchDescription() {38        assertThat("foo", new CustomMismatchDescription("bar"));39    }40}41public class CustomMismatchDescription implements Matcher<String> {42    private String expected;43    public CustomMismatchDescription(String expected) {44        this.expected = expected;45    }46    public boolean matches(Object

JUnit Tutorial:

LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.

JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
What is the JUnit framework
Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
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.