KaneAI - World’s First E2E Software Testing Agent.Signup for Private Beta Join TestMu Conference

How to use assertHasCauseExactlyInstanceOf method of org.assertj.core.internal.Throwables class

Best Assertj code snippet using org.assertj.core.internal.Throwables.assertHasCauseExactlyInstanceOf

Source:Throwables_assertHasCauseExactlyInstanceOf_Test.java

...21import org.junit.jupiter.api.Test;22import org.mockito.Mockito;23/**24 * Tests for25 * {@link org.assertj.core.internal.Throwables#assertHasCauseExactlyInstanceOf(org.assertj.core.api.AssertionInfo, Throwable, Class)}26 * .27 *28 * @author Jean-Christophe Gay29 */30public class Throwables_assertHasCauseExactlyInstanceOf_Test extends ThrowablesBaseTest {31    private Throwable throwableWithCause = new Throwable(new IllegalArgumentException());32    @Test33    public void should_pass_if_cause_is_exactly_instance_of_expected_type() {34        throwables.assertHasCauseExactlyInstanceOf(TestData.someInfo(), throwableWithCause, IllegalArgumentException.class);35    }36    @Test37    public void should_fail_if_actual_is_null() {38        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> throwables.assertHasCauseExactlyInstanceOf(someInfo(), null, .class)).withMessage(FailureMessages.actualIsNull());39    }40    @Test41    public void should_throw_NullPointerException_if_given_type_is_null() {42        Assertions.assertThatNullPointerException().isThrownBy(() -> throwables.assertHasCauseExactlyInstanceOf(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.assertHasCauseExactlyInstanceOf(info, ThrowablesBaseTest.actual, expectedCauseType);50        } catch (AssertionError err) {51            Mockito.verify(failures).failure(info, ShouldHaveCauseExactlyInstance.shouldHaveCauseExactlyInstance(ThrowablesBaseTest.actual, expectedCauseType));52            return;53        }54        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();55    }56    @Test57    public void should_fail_if_cause_is_not_instance_of_expected_type() {58        AssertionInfo info = TestData.someInfo();59        Class<NullPointerException> expectedCauseType = NullPointerException.class;60        try {61            throwables.assertHasCauseExactlyInstanceOf(info, throwableWithCause, expectedCauseType);62        } catch (AssertionError err) {63            Mockito.verify(failures).failure(info, ShouldHaveCauseExactlyInstance.shouldHaveCauseExactlyInstance(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.assertHasCauseExactlyInstanceOf(info, throwableWithCause, expectedCauseType);74        } catch (AssertionError err) {75            Mockito.verify(failures).failure(info, ShouldHaveCauseExactlyInstance.shouldHaveCauseExactlyInstance(throwableWithCause, expectedCauseType));76            return;77        }78        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();79    }80}...

assertHasCauseExactlyInstanceOf

Using AI Code Generation

1public class Throwables_assertHasCauseExactlyInstanceOf_Test extends ThrowablesBaseTest {2  public void should_pass_if_cause_is_exactly_instance_of_expected_type() {3    throwables.assertHasCauseExactlyInstanceOf(someInfo(), throwableWithCause, NullPointerException.class);4  }5  public void should_fail_if_cause_is_not_exactly_instance_of_expected_type() {6    AssertionInfo info = someInfo();7    Class<?> expectedType = RuntimeException.class;8    Throwable error = catchThrowable(() -> throwables.assertHasCauseExactlyInstanceOf(info, throwableWithCause, expectedType));9    assertThat(error).isInstanceOf(AssertionError.class);10    verify(failures).failure(info, shouldHaveCauseExactlyInstance(throwableWithCause, expectedType));11  }12  public void should_fail_if_cause_is_null() {13    AssertionInfo info = someInfo();14    Throwable error = catchThrowable(() -> throwables.assertHasCauseExactlyInstanceOf(info, throwableWithoutCause, NullPointerException.class));15    assertThat(error).isInstanceOf(AssertionError.class);16    verify(failures).failure(info, shouldHaveCauseExactlyInstance(throwableWithoutCause, NullPointerException.class));17  }18}19package org.assertj.core.internal;20import static org.assertj.core.api.Assertions.assertThat;21import static org.assertj.core.test.ExpectedException.none;22import static org.mockito.Mockito.mock;23import org.assertj.core.api.AssertionInfo;24import org.assertj.core.api.Assertions;25import org.assertj.core.test.ExpectedException;26import org.junit.Before;27import org.junit.Rule;28public abstract class ThrowablesBaseTest {29  public ExpectedException thrown = none();30  protected Failures failures;31  protected Throwables throwables;32  protected Throwable throwableWithCause;33  protected Throwable throwableWithoutCause;34  public void setUp() {35    failures = mock(Failures.class);36    throwables = new Throwables();37    throwables.failures = failures;38    throwableWithCause = new Throwable(new NullPointerException());

assertHasCauseExactlyInstanceOf

Using AI Code Generation

1assertThatExceptionOfType( IllegalArgumentException.class )2    .isThrownBy( () -> { throw new IllegalArgumentException( "boom" ); } )3    .withCauseInstanceOf( RuntimeException.class )4    .withMessage( "boom" )5    .withNoCause();6assertThatExceptionOfType( IllegalArgumentException.class )7    .isThrownBy( () -> { throw new IllegalArgumentException( "boom" ); } )8    .withCauseInstanceOf( RuntimeException.class )9    .withMessage( "boom" )10    .withCauseExactlyInstanceOf( RuntimeException.class );11assertThatExceptionOfType( IllegalArgumentException.class )12    .isThrownBy( () -> { throw new IllegalArgumentException( "boom" ); } )13    .withCauseInstanceOf( RuntimeException.class )14    .withMessage( "boom" )15    .withCauseExactlyInstanceOf( IllegalStateException.class );16assertThatExceptionOfType( IllegalArgumentException.class )17    .isThrownBy( () -> { throw new IllegalArgumentException( "boom" ); } )18    .withCauseInstanceOf( RuntimeException.class )19    .withMessage( "boom" )20    .withCauseExactlyInstanceOf( IllegalArgumentException.class );21assertThatExceptionOfType( IllegalArgumentException.class )22    .isThrownBy( () -> { throw new IllegalArgumentException( "boom" ); } )23    .withCauseInstanceOf( RuntimeException.class )24    .withMessage( "boom" )25    .withCauseExactlyInstanceOf( NullPointerException.class );26assertThatExceptionOfType( IllegalArgumentException.class )27    .isThrownBy( () -> { throw new IllegalArgumentException( "boom" ); } )28    .withCauseInstanceOf( RuntimeException.class )29    .withMessage( "boom" )30    .withCauseExactlyInstanceOf( RuntimeException.class )31    .withCauseExactlyInstanceOf( IllegalArgumentException.class );32assertThatExceptionOfType( IllegalArgumentException.class )33    .isThrownBy( () -> { throw new IllegalArgumentException( "boom" ); } )34    .withCauseInstanceOf( RuntimeException.class )35    .withMessage( "boom" )36    .withCauseExactlyInstanceOf( RuntimeException.class )37    .withCauseExactlyInstanceOf( NullPointerException.class );38assertThatExceptionOfType( IllegalArgumentException.class )39    .isThrownBy( () -> { throw new IllegalArgumentException( "boom" ); } )40    .withCauseInstanceOf( RuntimeException.class )41    .withMessage( "boom" )42    .withCauseExactlyInstanceOf( RuntimeException.class )43    .withCauseExactlyInstanceOf( IllegalArgumentException.class )44    .withCauseExactlyInstanceOf( NullPointerException.class );45assertThatExceptionOfType( IllegalArgumentException.class )46    .isThrownBy( () -> { throw new IllegalArgumentException( "

assertHasCauseExactlyInstanceOf

Using AI Code Generation

1assertThatExceptionOfType(NullPointerException.class)2    .isThrownBy(() -> {3        throw new NullPointerException("npe");4    })5    .withMessageContaining("npe")6    .withCauseExactlyInstanceOf(IndexOutOfBoundsException.class)7    .withMessageContaining("ioobe");8assertThatExceptionOfType(NullPointerException.class)9    .isThrownBy(() -> {10        throw new NullPointerException("npe", new IndexOutOfBoundsException("ioobe"));11    })12    .withMessageContaining("npe")13    .withCauseExactlyInstanceOf(IndexOutOfBoundsException.class)14    .withMessageContaining("ioobe");15assertThatExceptionOfType(NullPointerException.class)16    .isThrownBy(() -> {17        throw new NullPointerException("npe", new IndexOutOfBoundsException("ioobe"));18    })19    .withMessageContaining("npe")20    .withCauseExactlyInstanceOf(IllegalArgumentException.class)21    .withMessageContaining("iae");22assertThatExceptionOfType(NullPointerException.class)23    .isThrownBy(() -> {24        throw new NullPointerException("npe", new IndexOutOfBoundsException("ioobe"));25    })26    .withMessageContaining("npe")27    .withCauseExactlyInstanceOf(IndexOutOfBoundsException.class)28    .withCauseExactlyInstanceOf(IllegalArgumentException.class)29    .withMessageContaining("iae");30assertThatExceptionOfType(NullPointerException.class)31    .isThrownBy(() -> {32        throw new NullPointerException("npe", new IndexOutOfBoundsException("ioobe"));33    })34    .withMessageContaining("npe")35    .withCauseExactlyInstanceOf(IllegalArgumentException.class)36    .withCauseExactlyInstanceOf(IndexOutOfBoundsException.class)37    .withMessageContaining("iae");38assertThatExceptionOfType(NullPointerException.class)39    .isThrownBy(() -> {40        throw new NullPointerException("npe", new IndexOutOfBoundsException("ioobe"));41    })42    .withMessageContaining("npe")43    .withCauseExactlyInstanceOf(IllegalArgumentException.class)44    .withCauseExactlyInstanceOf(IndexOutOfBoundsException.class)45    .withMessageContaining("ioobe");46assertThatExceptionOfType(NullPointerException.class)47    .isThrownBy(() -> {48        throw new NullPointerException("npe", new IndexOutOfBoundsException("ioobe"));49    })50    .withMessageContaining("npe")51    .withCauseExactlyInstanceOf(IllegalArgumentException.class)52    .withCauseExactlyInstanceOf(IndexOutOfBoundsException.class)53    .withCauseExactlyInstanceOf(NullPointerException.class)54    .withMessageContaining("npe");55assertThatExceptionOfType(NullPointerException.class)56    .isThrownBy(() -> {57        throw new NullPointerException("npe", new IndexOutOfBoundsException("ioobe"));

assertHasCauseExactlyInstanceOf

Using AI Code Generation

1assertThatThrownBy(() -> {2    throw new Exception("cause message", new Exception("cause message"));3}).hasCauseExactlyInstanceOf(Exception.class)4  .hasMessage("cause message");5assertThatThrownBy(() -> {6    throw new Exception("cause message", new Exception("cause message"));7}).hasCauseExactlyInstanceOf(Exception.class)8  .hasMessage("cause message");9assertThatThrownBy(() -> {10    throw new Exception("cause message", new Exception("cause message"));11}).hasCauseExactlyInstanceOf(Exception.class)12  .hasMessage("cause message");13assertThatThrownBy(() -> {14    throw new Exception("cause message", new Exception("cause message"));15}).hasCauseExactlyInstanceOf(Exception.class)16  .hasMessage("cause message");17assertThatThrownBy(() -> {18    throw new Exception("cause message", new Exception("cause message"));19}).hasCauseExactlyInstanceOf(Exception.class)20  .hasMessage("cause message");

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.