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How to use describeMismatch method of org.hamcrest.DiagnosingMatcher class

Best junit code snippet using org.hamcrest.DiagnosingMatcher.describeMismatch

Source:SamePropertyValuesAs.java

...52    }53    private boolean hasMatchingValues(Object actual, Description mismatchDescription) {54        for (PropertyMatcher propertyMatcher : propertyMatchers) {55            if (!propertyMatcher.matches(actual)) {56                propertyMatcher.describeMismatch(actual, mismatchDescription);57                return false;58            }59        }60        return true;61    }62    private static <T> List<PropertyMatcher> propertyMatchersFor(T bean, PropertyDescriptor[] descriptors) {63        List<PropertyMatcher> result = new ArrayList<>(descriptors.length);64        for (PropertyDescriptor propertyDescriptor : descriptors) {65            result.add(new PropertyMatcher(propertyDescriptor, bean));66        }67        return result;68    }69    private static Set<String> propertyNamesFrom(PropertyDescriptor[] descriptors) {70        HashSet<String> result = new HashSet<>();71        for (PropertyDescriptor propertyDescriptor : descriptors) {72            result.add(propertyDescriptor.getDisplayName());73        }74        return result;75    }76    private static class PropertyMatcher extends DiagnosingMatcher<Object> {77        private final Method readMethod;78        private final Matcher<Object> matcher;79        private final String propertyName;80        public PropertyMatcher(PropertyDescriptor descriptor, Object expectedObject) {81            this.propertyName = descriptor.getDisplayName();82            this.readMethod = descriptor.getReadMethod();83            this.matcher = equalTo(readProperty(readMethod, expectedObject));84        }85        @Override86        public boolean matches(Object actual, Description mismatch) {87            final Object actualValue = readProperty(readMethod, actual);88            if (!matcher.matches(actualValue)) {89                mismatch.appendText(propertyName + " ");90                matcher.describeMismatch(actualValue, mismatch);91                return false;92            }93            return true;94        }95        @Override96        public void describeTo(Description description) {97            description.appendText(propertyName + ": ").appendDescriptionOf(matcher);98        }99    }100    private static Object readProperty(Method method, Object target) {101        try {102            return method.invoke(target, NO_ARGUMENTS);103        } catch (Exception e) {104            throw new IllegalArgumentException("Could not invoke " + method + " on " + target, e);...

Source:MetricMatchers.java

...51        }52        @Override53        protected boolean matches(Object item, Description mismatchDescription) {54            if (!typeMatcher.matches(item)) {55                typeMatcher.describeMismatch(item, mismatchDescription);56                return false;57            }58            V value = valueExtractor.apply(expectedClass.cast(item));59            if (!valueMatcher.matches(value)) {60                mismatchDescription.appendText(expectedClass.getSimpleName()).appendText(" with ");61                valueMatcher.describeMismatch(value, mismatchDescription);62                return false;63            }64            return true;65        }66        @Override67        public void describeTo(Description description) {68            description69                    .appendText(expectedClass.getSimpleName())70                    .appendText(" with ")71                    .appendDescriptionOf(valueMatcher);72        }73    }74}...

Source:Matchers.java

...21    }22    public static Function1<SelfDescribing, String> description() {23        return selfDescribing -> asString(selfDescribing);24    }25    public static <T> Function1<T, String> describeMismatch(Class<T> type, final Matcher<? super T> matcher) {26        return describeMismatch(matcher);27    }28    public static <T> Function1<T, String> describeMismatch(final Matcher<? super T> matcher) {29        if (matcher instanceof DiagnosingMatcher)30            return diagnoseMismatch((DiagnosingMatcher) matcher);31        return returns1(StringDescription.asString(matcher));32    }33    public static <T> Function1<T, String> diagnoseMismatch(Class<T> type, final DiagnosingMatcher matcher) {34        return diagnoseMismatch(matcher);35    }36    public static <T> Function1<T, String> diagnoseMismatch(final DiagnosingMatcher matcher) {37        return t -> {38            StringDescription mismatchDescription = new StringDescription();39            matcher.describeMismatch(t, mismatchDescription);40            return mismatchDescription.toString();41        };42    }43    public static <T> Function1<T, Matcher<T>> isMatcher(Class<T> clazz) {44        return isMatcher();45    }46    public static <T> Function1<T, Matcher<T>> isMatcher() {47        return Matchers::is;48    }49    public static <T> LogicalPredicate<T> predicate(final Matcher<T> matcher) {50        return new LogicalPredicate<T>() {51            public final boolean matches(T other) {52                return matcher.matches(other);53            }...

Source:IsComponentEqual.java

...18        if (component == null && argument == null) return true;19        if (component == null) {20            Matcher<T> valueMatcher = allNullFields(argument);21            boolean match = valueMatcher.matches(argument);22            if (!match) valueMatcher.describeMismatch(argument, mismatchDescription);23            return match;24        }25        if (argument == null) {26            Matcher<T> valueMatcher = allNullFields(component);27            boolean match = valueMatcher.matches(component);28            if (!match) mismatchDescription.appendText("is null");29            return match;30        }31        Matcher<T> valueMatcher = new SamePersistentFieldsAs<T>(component);32        boolean match = valueMatcher.matches(argument);33        if (!match) valueMatcher.describeMismatch(argument, mismatchDescription);34        return match;35    }36    private Matcher<T> allNullFields(final Object target) {37        Collection<Matcher<? super T>> nullFields = new ArrayList<Matcher<? super T>>();38        for (Field field : PersistentFieldPredicate.persistentFieldsOf(target)) {39            nullFields.add(new HasFieldWithValue<T, Object>(field.getName(), nullValue()));40        }41        return allOf(nullFields);42    }43    44    public void describeTo(Description description) {45        if (component == null) {46            description.appendText("null");47        } else {...

Source:IsInstanceOfWith.java

...26    }27    @Override28    protected boolean matches(Object item, Description mismatchDescription) {29        if (!instanceOf.matches(item)) {30            instanceOf.describeMismatch(item, mismatchDescription);31            return false;32        }33        if (!predicate.matches(item)) {34            predicate.describeMismatch(item, mismatchDescription);35            return false;36        }37        return true;38    }39    /**40     * Factory method to create a new matcher for this class.41     */42    public static <T> IsInstanceOfWith<T> instanceOfWith(Class<? extends T> expectedClass, Matcher<T> predicate) {43        return new IsInstanceOfWith<>(expectedClass, predicate);44    }45}...

Source:CastMatcher.java

...20            mismatch.appendValue(item).appendText(" is a " + item.getClass().getName());21            return false;22        }23        if (!matcher.matches(item)) {24            matcher.describeMismatch(item, mismatch);25            return false;26        }27        return true;28    }29    @Override30    public void describeTo(Description description) {31        description.appendText("an instance of ").appendText(expectedClass.getName())32            .appendText(" and ").appendDescriptionOf(matcher);33    }34    @SafeVarargs35    public static <TActual, TExpected> Matcher<TActual> cast(Class<TExpected> type, Matcher<TExpected>... matchers) {36        var matcher = matchers.length == 1 ? matchers[0] : allOf(matchers);37        return new CastMatcher<TActual, TExpected>(type, matcher);38    }...

Source:AllOf.java

...12    public boolean matches(Object o, Description mismatch) {13        for (Matcher<? super T> matcher : this.matchers) {14            if (!matcher.matches(o)) {15                mismatch.appendDescriptionOf(matcher).appendText(" ");16                matcher.describeMismatch(o, mismatch);17                return false;18            }19        }20        return true;21    }22    @Override // org.hamcrest.SelfDescribing23    public void describeTo(Description description) {24        description.appendList("(", " and ", ")", this.matchers);25    }26    public static <T> Matcher<T> allOf(Iterable<Matcher<? super T>> matchers2) {27        return new AllOf(matchers2);28    }29    @SafeVarargs30    public static <T> Matcher<T> allOf(Matcher<? super T>... matchers2) {...

Source:DiagnosingMatcher.java

...12/* 12 */     return matches(item, Description.NONE);13/*    */   }14/*    */ 15/*    */   16/*    */   public final void describeMismatch(Object item, Description mismatchDescription) {17/* 17 */     matches(item, mismatchDescription);18/*    */   }19/*    */   20/*    */   protected abstract boolean matches(Object paramObject, Description paramDescription);21/*    */ }22/* Location:              /home/arpit/Downloads/Picking-Tool-6.5.2.jar!/org/hamcrest/DiagnosingMatcher.class23 * Java compiler version: 5 (49.0)24 * JD-Core Version:       1.1.325 */...

describeMismatch

Using AI Code Generation

1import org.hamcrest.Description;2import org.hamcrest.DiagnosingMatcher;3import org.hamcrest.Matcher;4public class DiagnosingMatcherTest {5    public static void main(String[] args) {6        Matcher<String> matcher = new DiagnosingMatcher<String>() {7            protected boolean matches(Object item, Description mismatchDescription) {8                if (item.equals("test")) {9                    return true;10                } else {11                    mismatchDescription.appendText("was ").appendValue(item);12                    return false;13                }14            }15            public void describeTo(Description description) {16                description.appendText("test");17            }18        };19        System.out.println(matcher.matches("test"));20        System.out.println(matcher.matches("test1"));21    }22}

describeMismatch

Using AI Code Generation

1org.hamcrest.DiagnosingMatcher.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)2org.hamcrest.DiagnosingMatcher.describeTo(org.hamcrest.Description description)3org.hamcrest.Matcher.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)4org.hamcrest.Matcher.describeTo(org.hamcrest.Description description)5org.hamcrest.TypeSafeDiagnosingMatcher.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)6org.hamcrest.TypeSafeDiagnosingMatcher.describeTo(org.hamcrest.Description description)7org.hamcrest.TypeSafeMatcher.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)8org.hamcrest.TypeSafeMatcher.describeTo(org.hamcrest.Description description)9org.hamcrest.BaseMatcher.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)10org.hamcrest.BaseMatcher.describeTo(org.hamcrest.Description description)11org.hamcrest.SelfDescribing.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)12org.hamcrest.SelfDescribing.describeTo(org.hamcrest.Description description)13org.hamcrest.SelfDescribing.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)14org.hamcrest.SelfDescribing.describeTo(org.hamcrest.Description description)15org.hamcrest.SelfDescribing.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)16org.hamcrest.SelfDescribing.describeTo(org.hamcrest.Description description)17org.hamcrest.SelfDescribing.describeMismatch(Object item, org.hamcrest.Description mismatchDescription)

describeMismatch

Using AI Code Generation

1package com.baeldung.describe_mismatch;2import static org.hamcrest.CoreMatchers.equalTo;3import static org.hamcrest.MatcherAssert.assertThat;4import java.util.Arrays;5import java.util.List;6import org.hamcrest.Description;7import org.hamcrest.DiagnosingMatcher;8import org.hamcrest.Matcher;9import org.hamcrest.StringDescription;10public class DescribeMismatchExample {11    public static void main(String[] args) {12        List<Integer> list = Arrays.asList(1, 2, 3, 4, 5);13        assertThat(list, hasSize(equalTo(6)));14    }15    public static <T> Matcher<T> hasSize(Matcher<? super Integer> sizeMatcher) {16        return new DiagnosingMatcher<T>() {17            public void describeTo(Description description) {18                description.appendText("has size ").appendDescriptionOf(sizeMatcher);19            }20            protected boolean matches(Object item, Description mismatchDescription) {21                if (!(item instanceof List)) {22                    mismatchDescription.appendText("was not a list");23                    return false;24                }25                List<?> list = (List<?>) item;26                return sizeMatcher.matches(list.size());27            }28            protected void describeMismatchSafely(T item, Description mismatchDescription) {29                if (!(item instanceof List)) {30                    mismatchDescription.appendText("was not a list");31                    return;32                }33                List<?> list = (List<?>) item;34                sizeMatcher.describeMismatch(list.size(), mismatchDescription);35            }36        };37    }38}

describeMismatch

Using AI Code Generation

1import org.hamcrest.Description2import org.hamcrest.DiagnosingMatcher3import org.hamcrest.Matcher4import org.hamcrest.TypeSafeMatcher5import org.hamcrest.text.MatchesPattern.matchesPattern6import org.junit.Assert.assertThat7import org.junit.Test8class HamcrestDiagnosingMatcherTest {9    fun `should match with diagnosing matcher`() {10        val matcher = object : DiagnosingMatcher<String>() {11            override fun matches(item: Any?, mismatchDescription: Description?): Boolean {12                mismatchDescription?.appendText("mismatch description")13            }14            override fun describeTo(description: Description?) {15                description?.appendText("description")16            }17        }18        assertThat("some string", matcher)19    }20}21import org.hamcrest.Description22import org.hamcrest.Matcher23import org.hamcrest.TypeSafeMatcher24import org.hamcrest.text.MatchesPattern.matchesPattern25import org.junit.Assert.assertThat26import org.junit.Test27class HamcrestTypeSafeMatcherTest {28    fun `should match with type safe matcher`() {29        val matcher = object : TypeSafeMatcher<String>() {30            override fun matchesSafely(item: String?): Boolean {31            }32            override fun describeTo(description: Description?) {33                description?.appendText("description")34            }35            override fun describeMismatchSafely(item: String?, mismatchDescription: Description?) {36                mismatchDescription?.appendText("mismatch description")37            }38        }39        assertThat("some string", matcher)40    }41}42import org.hamcrest.Description43import org.hamcrest.Matcher44import org.hamcrest.text.MatchesPattern.matchesPattern45import org.junit.Assert.assertThat46import org.junit.Test47class HamcrestMatcherTest {48    fun `should match with matcher`() {49        val matcher = object : Matcher<String> {50            override fun describeMismatch(item: Any?, mismatchDescription: Description?) {51                mismatchDescription?.appendText("mismatch description")52            }53            override fun _dont_implement_Matcher___instead_extend_BaseMatcher_() {54                TODO("Not yet implemented")55            }56            override fun describeTo(description: Description?) {

describeMismatch

Using AI Code Generation

1public class DiagnosingMatcherDemo extends DiagnosingMatcher<String> {2    private final String expected;3    public DiagnosingMatcherDemo(String expected) {4        this.expected = expected;5    }6    protected boolean matches(Object item, Description mismatchDescription) {7        if (expected.equals(item)) {8            return true;9        } else {10            mismatchDescription.appendText("was ").appendValue(item);11            return false;12        }13    }14    public void describeTo(Description description) {15        description.appendText("is ").appendValue(expected);16    }17    public static void main(String[] args) {18        String expected = "Hello World!";19        String actual = "Hello Hamcrest!";20        assertThat(actual, new DiagnosingMatcherDemo(expected));21    }22}23TypeSafeDiagnosingMatcher()24TypeSafeDiagnosingMatcher(Class<T> expectedType)25public class TypeSafeDiagnosingMatcherDemo extends TypeSafeDiagnosingMatcher<String> {26    private final String expected;27    public TypeSafeDiagnosingMatcherDemo(String expected) {28        super(String.class);29        this.expected = expected;30    }31    protected boolean matchesSafely(String item, Description mismatchDescription) {32        if (expected.equals(item)) {33            return true;34        } else {

describeMismatch

Using AI Code Generation

1import org.hamcrest.Description;2import org.hamcrest.DiagnosingMatcher;3import org.hamcrest.Matcher;4import org.hamcrest.TypeSafeMatcher;5public class DiagnosingMatcherTest {6    public static void main(String[] args) {7        Matcher<String> matcher = new DiagnosingMatcher<String>() {8            protected boolean matches(Object item, Description mismatchDescription) {9                String str = (String) item;10                if (str.length() < 5) {11                    mismatchDescription.appendText("was too short");12                    return false;13                }14                return true;15            }16            public void describeTo(Description description) {17                description.appendText("a string with length greater than 5");18            }19        };20        System.out.println(matcher.matches("hello"));21        System.out.println(matcher.matches("hi"));22    }23}

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