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

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

Source:Throwables_assertHasCauseInstanceOf_Test.java

...21import org.junit.jupiter.api.Test;22import org.mockito.Mockito;23/**24 * Tests for25 * {@link org.assertj.core.internal.Throwables#assertHasCauseInstanceOf(org.assertj.core.api.AssertionInfo, Throwable, Class)}26 * .27 *28 * @author Jean-Christophe Gay29 */30public class Throwables_assertHasCauseInstanceOf_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.assertHasCauseInstanceOf(TestData.someInfo(), throwableWithCause, IllegalArgumentException.class);35    }36    @Test37    public void should_pass_if_cause_is_instance_of_expected_type() {38        throwables.assertHasCauseInstanceOf(TestData.someInfo(), throwableWithCause, RuntimeException.class);39    }40    @Test41    public void should_fail_if_actual_is_null() {42        Assertions.assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> throwables.assertHasCauseInstanceOf(someInfo(), null, .class)).withMessage(FailureMessages.actualIsNull());43    }44    @Test45    public void should_throw_NullPointerException_if_given_type_is_null() {46        Assertions.assertThatNullPointerException().isThrownBy(() -> throwables.assertHasCauseInstanceOf(someInfo(), throwableWithCause, null)).withMessage("The given type should not be null");47    }48    @Test49    public void should_fail_if_actual_has_no_cause() {50        AssertionInfo info = TestData.someInfo();51        Class<NullPointerException> expectedCauseType = NullPointerException.class;52        try {53            throwables.assertHasCauseInstanceOf(info, ThrowablesBaseTest.actual, expectedCauseType);54        } catch (AssertionError err) {55            Mockito.verify(failures).failure(info, ShouldHaveCauseInstance.shouldHaveCauseInstance(ThrowablesBaseTest.actual, expectedCauseType));56            return;57        }58        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();59    }60    @Test61    public void should_fail_if_cause_is_not_instance_of_expected_type() {62        AssertionInfo info = TestData.someInfo();63        Class<NullPointerException> expectedCauseType = NullPointerException.class;64        try {65            throwables.assertHasCauseInstanceOf(info, throwableWithCause, expectedCauseType);66        } catch (AssertionError err) {67            Mockito.verify(failures).failure(info, ShouldHaveCauseInstance.shouldHaveCauseInstance(throwableWithCause, expectedCauseType));68            return;69        }70        TestFailures.failBecauseExpectedAssertionErrorWasNotThrown();71    }72}...

assertHasCauseInstanceOf

Using AI Code Generation

1public class AssertHasCauseInstanceOfTest {2    public void testAssertHasCauseInstanceOf() {3        Throwable cause = new Throwable("cause");4        Throwable actual = new Throwable("actual", cause);5        Throwables.assertHasCauseInstanceOf(Assertions.assertThat(actual), Throwable.class);6    }7}8package org.assertj.core.internal;9import static org.assertj.core.api.Assertions.assertThat;10import static org.assertj.core.error.ShouldHaveCause.shouldHaveCause;11import static org.assertj.core.test.TestData.someInfo;12import static org.assertj.core.util.FailureMessages.actualIsNull;13import static org.mockito.Mockito.verify;14import org.assertj.core.api.AssertionInfo;15import org.assertj.core.internal.Throwables;16import org.assertj.core.internal.ThrowablesBaseTest;17import org.junit.Test;18public class Throwables_assertHasCauseInstanceOf_Test extends ThrowablesBaseTest {19    public void should_pass_if_actual_has_cause_instance_of_expected_type() {20        throwables.assertHasCauseInstanceOf(someInfo(), new Throwable(new Exception()), Exception.class);21    }22    public void should_fail_if_actual_is_null() {23        thrown.expectAssertionError(actualIsNull());24        throwables.assertHasCauseInstanceOf(someInfo(), null, Exception.class);25    }26    public void should_fail_if_cause_is_null() {27        AssertionInfo info = someInfo();28        Throwable actual = new Throwable();29        try {30            throwables.assertHasCauseInstanceOf(info, actual, Exception.class);31        } catch (AssertionError e) {32            verify(failures).failure(info, shouldHaveCause(actual));33            return;34        }35        throw new AssertionError("AssertionError expected");36    }37    public void should_fail_if_actual_cause_is_not_instance_of_expected_type() {38        AssertionInfo info = someInfo();39        Throwable actual = new Throwable(new RuntimeException());40        try {41            throwables.assertHasCauseInstanceOf(info, actual, Exception.class);42        } catch (AssertionError e) {43            verify(failures).failure(info, shouldHaveCause(actual, actual.getCause(), Exception.class));44            return;45        }46        throw new AssertionError("AssertionError expected");47    }

assertHasCauseInstanceOf

Using AI Code Generation

1assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})2    .hasCauseInstanceOf(IllegalArgumentException.class);3assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})4    .hasCauseInstanceOf(IllegalArgumentException.class);5assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})6    .hasCauseInstanceOf(IllegalArgumentException.class);7assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})8    .hasCauseInstanceOf(IllegalArgumentException.class);9assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})10    .hasCauseInstanceOf(IllegalArgumentException.class);11assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})12    .hasCauseInstanceOf(IllegalArgumentException.class);13assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})14    .hasCauseInstanceOf(IllegalArgumentException.class);15assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})16    .hasCauseInstanceOf(IllegalArgumentException.class);17assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})18    .hasCauseInstanceOf(IllegalArgumentException.class);19assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})20    .hasCauseInstanceOf(IllegalArgumentException.class);21assertThatThrownBy(() -> {throw new RuntimeException("boom", new IllegalArgumentException("boom"));})22    .hasCauseInstanceOf(IllegalArgumentException.class);

assertHasCauseInstanceOf

Using AI Code Generation

1public void test() {2    try {3        throw new RuntimeException(new IllegalArgumentException());4    } catch (RuntimeException e) {5        assertThat(e).hasCauseInstanceOf(IllegalArgumentException.class);6    }7}8public final void assertHasCauseInstanceOf(AssertionInfo info, Throwable actual, Class<? extends Throwable> expectedType) {9    assertNotNull(info, actual);10    if (actual.getCause() == null) {11      throw failures.failure(info, shouldHaveCauseInstance(actual, expectedType));12    }13    if (!expectedType.isInstance(actual.getCause())) {14      throw failures.failure(info, shouldHaveCauseInstance(actual, expectedType));15    }16  }17public ThrowableAssert hasCauseInstanceOf(Class<? extends Throwable> expectedType) {18    throwables.assertHasCauseInstanceOf(info, actual, expectedType);19    return myself;20  }21   * assertThatExceptionOfType(NullPointerException.class).isThrownBy(() -> { throw new NullPointerException("boom!"); })22   *                                                    .withCauseInstanceOf(IllegalArgumentException.class);23   * assertThatExceptionOfType(NullPointerException.class).isThrownBy(() -> { throw new NullPointerException("boom!"); })24   *                                                    .withCauseInstanceOf(IllegalStateException.class);</code></pre>25  public SELF withCauseInstanceOf(Class<? extends Throwable> expectedType) {

assertHasCauseInstanceOf

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssert;2import org.assertj.core.api.ThrowableAssertBaseTest;3import org.assertj.core.internal.Throwables;4import static org.assertj.core.api.Assertions.assertThat;5import static org.assertj.core.api.Assertions.assertThatExceptionOfType;6import static org.assertj.core.error.ShouldHaveCause.shouldHaveCause;7import static org.assertj.core.util.AssertionsUtil.expectAssertionError;8import static org.assertj.core.util.FailureMessages.actualIsNull;9import static org.mockito.Mockito.verify;10public class Throwables_assertHasCauseInstanceOf_Test extends ThrowableAssertBaseTest {11  private static final String EXPECTED_TYPE = "java.lang.IllegalStateException";12  private static final String EXPECTED_MESSAGE = "Expecting Throwable to have cause instance of:<java.lang.IllegalStateException> but was instance of:<java.lang.IllegalArgumentException>";13  protected ThrowableAssert invoke_api_method() {14    return assertions.hasCauseInstanceOf(IllegalStateException.class);15  }16  protected void verify_internal_effects() {17    verify(throwables).assertHasCauseInstanceOf(getInfo(assertions), getActual(assertions), IllegalStateException.class);18  }19  protected void verify_exception_thrown_by_api_method() {20    assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> assertThat(throwException()).hasCauseInstanceOf(IllegalStateException.class))21                                                   .withMessage(EXPECTED_MESSAGE);22  }23  protected void verify_exception_thrown_by_api_method_with_message() {24    assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> assertThat(throwException()).hasCauseInstanceOf(IllegalStateException.class)25                                                                                                 .withMessage(EXPECTED_MESSAGE))26                                                   .withMessage(EXPECTED_MESSAGE);27  }28  protected void verify_exception_thrown_by_api_method_with_message_and_message_args() {29    assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> assertThat(throwException()).hasCauseInstanceOf(IllegalStateException.class)30                                                                                                 .withMessage(EXPECTED_TYPE))31                                                   .withMessage(EXPECTED_TYPE);32  }33  protected void verify_exception_thrown_by_api_method_with_message_complementing_description() {34    String expectedMessage = String.format("[A Test] " + EXPECTED_MESSAGE);35    assertThatExceptionOfType(AssertionError.class).isThrownBy(() -> assertThat(

assertHasCauseInstanceOf

Using AI Code Generation

1assertThatIllegalArgumentException()2    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })3    .withMessage("boom")4    .withCauseInstanceOf(IllegalArgumentException.class);5assertThatIllegalArgumentException()6    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })7    .withMessage("boom")8    .withCauseInstanceOf(IllegalArgumentException.class);9assertThatIllegalArgumentException()10    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })11    .withMessage("boom")12    .withCauseInstanceOf(IllegalArgumentException.class);13assertThatIllegalArgumentException()14    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })15    .withMessage("boom")16    .withCauseInstanceOf(IllegalArgumentException.class);17assertThatIllegalArgumentException()18    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })19    .withMessage("boom")20    .withCauseInstanceOf(IllegalArgumentException.class);21assertThatIllegalArgumentException()22    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })23    .withMessage("boom")24    .withCauseInstanceOf(IllegalArgumentException.class);25assertThatIllegalArgumentException()26    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })27    .withMessage("boom")28    .withCauseInstanceOf(IllegalArgumentException.class);29assertThatIllegalArgumentException()30    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })31    .withMessage("boom")32    .withCauseInstanceOf(IllegalArgumentException.class);33assertThatIllegalArgumentException()34    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })35    .withMessage("boom")36    .withCauseInstanceOf(IllegalArgumentException.class);37assertThatIllegalArgumentException()38    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })39    .withMessage("boom")40    .withCauseInstanceOf(IllegalArgumentException.class);41assertThatIllegalArgumentException()42    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })43    .withMessage("boom")44    .withCauseInstanceOf(IllegalArgumentException.class);45assertThatIllegalArgumentException()46    .isThrownBy(() -> { throw new IllegalArgumentException("boom"); })47    .withMessage("boom")48    .withCauseInstanceOf(IllegalArgumentException

assertHasCauseInstanceOf

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.internal.Throwables;3import org.junit.jupiter.api.Test;4import java.util.function.Predicate;5import static org.assertj.core.api.Assertions.assertThat;6class AssertHasCauseInstanceOfTest {7    void shouldPassWhenCauseIsInstanceOf() {8        Throwable throwable = new Throwable(new IllegalArgumentException());9        Assertions.assertThat(throwable).hasCauseInstanceOf(IllegalArgumentException.class);10    }11    void shouldFailWhenCauseIsNotInstanceOf() {12        Throwable throwable = new Throwable(new IllegalArgumentException());13        try {14            Assertions.assertThat(throwable).hasCauseInstanceOf(RuntimeException.class);15        } catch (AssertionError e) {16            assertThat(e).hasMessage("Expecting actual's cause to be an instance of:\n"17                    + " <java.lang.IllegalArgumentException>");18            return;19        }20        Assertions.fail("AssertionError expected");21    }22    void shouldFailWhenCauseIsNull() {23        Throwable throwable = new Throwable();24        try {25            Assertions.assertThat(throwable).hasCauseInstanceOf(IllegalArgumentException.class);26        } catch (AssertionError e) {27            assertThat(e).hasMessage("Expecting actual's cause to be an instance of:\n"28                    + "but was null");29            return;30        }31        Assertions.fail("AssertionError expected");32    }33    void shouldPassWhenCauseIsInstanceOfWithPredicate() {34        Throwable throwable = new Throwable(new IllegalArgumentException());35        Assertions.assertThat(throwable).hasCauseInstanceOf(IllegalArgumentException.class, (Predicate<IllegalArgumentException>) argument -> argument.getMessage() == null);36    }37    void shouldFailWhenCauseIsNotInstanceOfWithPredicate() {

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