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How to use ShouldHaveRootCauseExactlyInstance class of org.assertj.core.error package

Best Assertj code snippet using org.assertj.core.error.ShouldHaveRootCauseExactlyInstance

Source:Throwables_assertHasRootCauseExactlyInstanceOf_Test.java

...12 */13package org.assertj.core.internal.throwables;14import org.assertj.core.api.AssertionInfo;15import org.assertj.core.api.Assertions;16import org.assertj.core.error.ShouldHaveRootCauseExactlyInstance;17import org.assertj.core.internal.ThrowablesBaseTest;18import org.assertj.core.test.TestData;19import org.assertj.core.test.TestFailures;20import org.assertj.core.util.FailureMessages;21import org.junit.jupiter.api.Test;22import org.mockito.Mockito;23/**24 * Tests for25 * {@link org.assertj.core.internal.Throwables#assertHasRootCauseExactlyInstanceOf(org.assertj.core.api.AssertionInfo, Throwable, Class)}26 * .27 *28 * @author Jean-Christophe Gay29 */30public class Throwables_assertHasRootCauseExactlyInstanceOf_Test extends ThrowablesBaseTest {31    private Throwable throwableWithCause = new Throwable(new Exception(new IllegalArgumentException()));32    @Test33    public void should_pass_if_root_cause_is_exactly_instance_of_expected_type() {34        throwables.assertHasRootCauseExactlyInstanceOf(TestData.someInfo(), throwableWithCause, IllegalArgumentException.class);35    }36    @Test37    public void should_fail_if_actual_is_null() {38        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> throwables.assertHasRootCauseExactlyInstanceOf(someInfo(), null, .class)).withMessage(FailureMessages.actualIsNull());39    }40    @Test41    public void should_throw_NullPointerException_if_given_type_is_null() {42        Assertions.assertThatNullPointerException().isThrownBy(() -> throwables.assertHasRootCauseExactlyInstanceOf(someInfo(), throwableWithCause, null)).withMessage("The given type should not be null");43    }44    @Test45    public void should_fail_if_actual_has_no_cause() {46        AssertionInfo info = TestData.someInfo();47        Class<NullPointerException> expectedCauseType = NullPointerException.class;48        try {49            throwables.assertHasRootCauseExactlyInstanceOf(info, ThrowablesBaseTest.actual, expectedCauseType);50        } catch (AssertionError err) {51            Mockito.verify(failures).failure(info, ShouldHaveRootCauseExactlyInstance.shouldHaveRootCauseExactlyInstance(ThrowablesBaseTest.actual, expectedCauseType));52            return;53        }54        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();55    }56    @Test57    public void should_fail_if_root_cause_is_not_instance_of_expected_type() {58        AssertionInfo info = TestData.someInfo();59        Class<NullPointerException> expectedCauseType = NullPointerException.class;60        try {61            throwables.assertHasRootCauseExactlyInstanceOf(info, throwableWithCause, expectedCauseType);62        } catch (AssertionError err) {63            Mockito.verify(failures).failure(info, ShouldHaveRootCauseExactlyInstance.shouldHaveRootCauseExactlyInstance(throwableWithCause, expectedCauseType));64            return;65        }66        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();67    }68    @Test69    public void should_fail_if_cause_is_not_exactly_instance_of_expected_type() {70        AssertionInfo info = TestData.someInfo();71        Class<RuntimeException> expectedCauseType = RuntimeException.class;72        try {73            throwables.assertHasRootCauseExactlyInstanceOf(info, throwableWithCause, expectedCauseType);74        } catch (AssertionError err) {75            Mockito.verify(failures).failure(info, ShouldHaveRootCauseExactlyInstance.shouldHaveRootCauseExactlyInstance(throwableWithCause, expectedCauseType));76            return;77        }78        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();79    }80}...

ShouldHaveRootCauseExactlyInstance

Using AI Code Generation

1package com.example;2import org.assertj.core.api.Assertions;3import org.assertj.core.api.ThrowableAssert;4import org.assertj.core.error.ShouldHaveRootCauseExactlyInstance;5import org.assertj.core.internal.Failures;6import org.assertj.core.presentation.StandardRepresentation;7import org.junit.Test;8public class ShouldHaveRootCauseExactlyInstanceTest {9    public void test() {10        Failures failures = Failures.instance();11        ThrowableAssert.ThrowingCallable throwingCallable = () -> {12            throw new RuntimeException("test", new IllegalArgumentException("test"));13        };14        Throwable actualThrowable = Assertions.catchThrowable(throwingCallable);15        Throwable expectedThrowable = new IllegalStateException("test");16        ShouldHaveRootCauseExactlyInstance shouldHaveRootCauseExactlyInstance = new ShouldHaveRootCauseExactlyInstance(actualThrowable, expectedThrowable);17        String message = failures.failureInfo(new StandardRepresentation(), shouldHaveRootCauseExactlyInstance).toString();18        System.out.println(message);19    }20}21package com.example;22import org.assertj.core.api.Assertions;23import org.assertj.core.api.ThrowableAssert;24import org.assertj.core.error.ShouldHaveRootCauseExactlyType;25import org.assertj.core.internal.Failures;26import org.assertj.core.presentation.StandardRepresentation;27import org.junit.Test;28public class ShouldHaveRootCauseExactlyTypeTest {29    public void test() {30        Failures failures = Failures.instance();31        ThrowableAssert.ThrowingCallable throwingCallable = () -> {32            throw new RuntimeException("test", new IllegalArgumentException("test"));33        };34        Throwable actualThrowable = Assertions.catchThrowable(throwingCallable);35        Class<? extends Throwable> expectedThrowableType = IllegalStateException.class;36        ShouldHaveRootCauseExactlyType shouldHaveRootCauseExactlyType = new ShouldHaveRootCauseExactlyType(actualThrowable, expectedThrowableType);37        String message = failures.failureInfo(new StandardRepresentation(), shouldHaveRootCauseExactlyType).toString();38        System.out.println(message);39    }40}

ShouldHaveRootCauseExactlyInstance

Using AI Code Generation

1import org.assertj.core.api.AbstractThrowableAssert;2import org.assertj.core.api.Assertions;3import org.assertj.core.error.ShouldHaveRootCauseExactlyInstance;4import org.assertj.core.error.ShouldHaveRootCauseExactlyInstance_ofType;5import org.assertj.core.error.ShouldHaveRootCauseExactlyInstance_create;6import org.assertj.core.internal.Failures;7import org.assertj.core.internal.Objects;8import org.assertj.core.util.VisibleForTesting;9public class ThrowableAssert extends AbstractThrowableAssert<ThrowableAssert, Throwable> {10  private static final Objects objects = Objects.instance();11  Failures failures = Failures.instance();12  public ThrowableAssert(Throwable actual) {13    super(actual, ThrowableAssert.class);14  }15   * <pre><code class='java'> assertThatExceptionOfType(IllegalStateException.class).isThrownBy(() -> { throw new IllegalStateException("boom"); })16   *                                                   .withCauseExactlyInstanceOf(IllegalArgumentException.class);</code></pre>17  public ThrowableAssert withCauseExactlyInstanceOf(Class<? extends Throwable> expectedCause) {18    objects.assertNotNull(info, actual);19    isInstanceOf(expectedCause, actual.getCause(), info);20    return myself;21  }22  private static void isInstanceOf(Class<?> expectedType, Object actual, Description description) {23    if (actual == null) throw failures.failure(description, ShouldHaveRootCauseExactlyInstance.shouldHaveRootCauseExactlyInstance(expectedType));24    if (!expectedType.isInstance(actual)) throw failures.failure(description, ShouldHaveRootCauseExactlyInstance_ofType.shouldHaveRootCauseExactlyInstance(actual, expectedType));25  }

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