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How to use havingCause method of org.assertj.core.api.ThrowableAssertAlternative class

Best Assertj code snippet using org.assertj.core.api.ThrowableAssertAlternative.havingCause

Source:ThrowableAssertAlternative_havingCause_Test.java

...16import static org.assertj.core.error.ShouldNotBeNull.shouldNotBeNull;17import static org.assertj.core.util.AssertionsUtil.expectAssertionError;18import org.junit.jupiter.api.DisplayName;19import org.junit.jupiter.api.Test;20@DisplayName("ThrowableAssertAlternative havingCause")21class ThrowableAssertAlternative_havingCause_Test {22  @Test23  void should_return_cause_if_throwable_has_cause() {24    // GIVEN25    Throwable cause = new Throwable("cause message");26    Throwable throwable = new Throwable("top level message", cause);27    // WHEN28    ThrowableAssertAlternative<?> causeAssertions = new ThrowableAssertAlternative<>(throwable).havingCause();29    // THEN30    assertThat(causeAssertions.actual).isSameAs(cause);31  }32  @Test33  void should_fail_if_throwable_has_no_cause() {34    // GIVEN35    Throwable throwable = new Throwable("top level message");36    ThrowableAssertAlternative<Throwable> taa = new ThrowableAssertAlternative<>(throwable);37    // WHEN38    AssertionError error = expectAssertionError(taa::havingCause);39    // THEN40    assertThat(error).hasMessage(shouldHaveCause(throwable).create());41  }42  @Test43  void should_fail_if_throwable_is_null() {44    // GIVEN45    ThrowableAssertAlternative<Throwable> taa = new ThrowableAssertAlternative<>(null);46    // WHEN47    AssertionError error = expectAssertionError(taa::havingCause);48    // THEN49    assertThat(error).hasMessage(shouldNotBeNull().create());50  }51}...

havingCause

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative;2import org.junit.jupiter.api.Test;3import static org.assertj.core.api.Assertions.assertThat;4import static org.assertj.core.api.Assertions.assertThatThrownBy;5public class ThrowableAssertAlternativeTest {6    public void havingCauseTest() {7        assertThatThrownBy(() -> {8            try {9                throw new RuntimeException("Boom!");10            } catch (Exception e) {11                throw new RuntimeException("Outer", e);12            }13        }).isInstanceOf(RuntimeException.class)14                .hasMessage("Outer")15                .hasNoCause()16                .havingCause()17                .isInstanceOf(RuntimeException.class)18                .hasMessage("Boom!");19    }20}21HavingCauseTest > havingCauseTest() PASSED

havingCause

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative2import org.assertj.core.api.Assertions.assertThatThrownBy3import org.assertj.core.api.ThrowableAssertAlternative4import org.assertj.core.api.Assertions.assertThatThrownBy5import org.assertj.core.api.ThrowableAssertAlternative6import org.assertj.core.api.Assertions.assertThatThrownBy7import org.assertj.core.api.ThrowableAssertAlternative8import org.assertj.core.api.Assertions.assertThatThrownBy9import org.assertj.core.api.ThrowableAssertAlternative10import org.assertj.core.api.Assertions.assertThatThrownBy11import org.assertj.core.api.ThrowableAssertAlternative12import org.assertj.core.api.Assertions.assertThatThrownBy13import org.assertj.core.api.ThrowableAssertAlternative14import org.assertj.core.api.Assertions.assertThatThrownBy15import org.assertj.core.api.ThrowableAssertAlternative16import org.assertj.core.api.Assertions.assertThatThrownBy17import org.assertj.core.api.ThrowableAssertAlternative18import org.assertj.core.api.Assertions.assertThatThrownBy19import org.assertj.core.api.ThrowableAssertAlternative20import org.assertj.core.api.Assertions.assertThatThrownBy21import org.assertj.core.api.ThrowableAssertAlternative22import org.assertj.core.api.Assertions.assertThatThrownBy23import org.assertj.core.api.ThrowableAssertAlternative24import org.assertj.core.api.Assertions.assertThatThrownBy25import org.assertj.core.api.ThrowableAssertAlternative26import org.assertj.core.api.Assertions.assertThatThrownBy27import org.assertj.core

havingCause

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative;2import static org.assertj.core.api.Assertions.assertThat;3public class ThrowableAssertAlternativeTest {4    public static void main(String[] args) {5        ThrowableAssertAlternativeTest test = new ThrowableAssertAlternativeTest();6        test.testThrowableAssertAlternative();7    }8    private void testThrowableAssertAlternative() {9        Throwable throwable = new Throwable("throwable message");10        assertThat(throwable).hasMessage("throwable message")11                .hasMessageContaining("throwable")12                .hasMessageStartingWith("throw")13                .hasMessageEndingWith("message")14                .hasMessageMatching(".*throwable.*")15                .hasNoCause()16                .hasCause(null)17                .hasCauseInstanceOf(Exception.class)18                .hasCauseExactlyInstanceOf(Exception.class)19                .hasCause(new Throwable("throwable message"))20                .hasCause(new Throwable("throwable message"), CauseAssertionStrategy.INSTANCE)21                .hasCause(new Throwable("throwable message"), CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE)22                .hasCause(new Throwable("throwable message"), CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE)23                .hasCause(new Throwable("throwable message"), CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE)24                .hasCause(new Throwable("throwable message"), CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE)25                .hasCause(new Throwable("throwable message"), CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE, CauseAssertionStrategy.INSTANCE)26                .hasCause(new Throwable("throwable message"), CauseAsserti

havingCause

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative;2ThrowableAssertAlternative throwableAssertAlternative = assertThatExceptionOfType(Exception.class).isThrownBy(() -> {3    throw new Exception("Error");4});5throwableAssertAlternative.havingCause(new Condition<>(e -> e.getMessage().equals("Error"), "Error"));6import org.assertj.core.api.ThrowableAssertAlternative;7ThrowableAssertAlternative throwableAssertAlternative = assertThatExceptionOfType(Exception.class).isThrownBy(() -> {8    throw new Exception("Error");9});10throwableAssertAlternative.havingCauseInstanceOf(Exception.class);11import org.assertj.core.api.ThrowableAssertAlternative;12ThrowableAssertAlternative throwableAssertAlternative = assertThatExceptionOfType(Exception.class).isThrownBy(() -> {13    throw new Exception("Error");14});15throwableAssertAlternative.havingRootCause(new Condition<>(e -> e.getMessage().equals("Error"), "Error"));16import org.assertj.core.api.ThrowableAssertAlternative;17ThrowableAssertAlternative throwableAssertAlternative = assertThatExceptionOfType(Exception.class).isThrownBy(() -> {18    throw new Exception("Error");19});20throwableAssertAlternative.havingRootCauseInstanceOf(Exception.class);21	at org.junit.Assert.assertEquals(Assert.java:115)22	at org.junit.Assert.assertEquals(Assert.java:144)23	at org.junit.Assert.assertEquals(Assert.java:151)24	at org.junit.Assert.assertEquals(Assert.java:158)25	at com.baeldung.assertj.throwableassertalternative.TestThrowableAssertAlternative.testHavingCause(TestThrowableAssertAlternative.java:18)26	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)27	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)28	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)29	at java.lang.reflect.Method.invoke(Method.java:498)30	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)31	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)32	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)

havingCause

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.Assertions.assertThatThrownBy;3import java.io.IOException;4import org.junit.Test;5public class HavingCauseTest {6    public void givenThrowableWithCause_whenHavingCause_thenCorrect() {7        Throwable throwable = new Throwable(new IOException("Invalid file"));8        assertThatThrownBy(() -> { throw throwable; })9          .hasCauseInstanceOf(IOException.class)10          .hasMessageContaining("Invalid file")11          .hasNoSuppressedExceptions();12    }13}14at org.junit.Assert.assertEquals(Assert.java:115)15at org.junit.Assert.assertEquals(Assert.java:144)16at org.assertj.core.api.ThrowableAssertAlternative.hasCauseInstanceOf(ThrowableAssertAlternative.java:91)17at com.baeldung.assertj.HavingCauseTest.givenThrowableWithCause_whenHavingCause_thenCorrect(HavingCauseTest.java:16)18at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)19at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)20at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)21at java.lang.reflect.Method.invoke(Method.java:498)22at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)23at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)24at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)25at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)26at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)27at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)28at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)29at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)30at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4Class

havingCause

Using AI Code Generation

1import static org.assertj.core.api.Assertions.*;2import static org.assertj.core.api.ThrowableAssertAlternative.*;3public class TestException {4    public void test() {5        assertThatThrownBy(() -> {6            throw new IllegalArgumentException("Illegal argument", new RuntimeException("Invalid argument"));7        }).isInstanceOf(IllegalArgumentException.class)8                .havingCause().isInstanceOf(RuntimeException.class)9                .havingMessage("Invalid argument");10    }11}12import static org.assertj.core.api.Assertions.*;13import static org.assertj.core.api.ThrowableAssertAlternative.*;14public class TestException {15    public void test() {16        assertThatThrownBy(() -> {17            throw new IllegalArgumentException("Illegal argument", new RuntimeException("Invalid argument"));18        }).isInstanceOf(IllegalArgumentException.class)19                .havingCause().isInstanceOf(RuntimeException.class).havingMessage("Invalid argument");20    }21}22import static org.assertj.core.api.Assertions.*;23import static org.assertj.core.api.ThrowableAssertAlternative.*;24public class TestException {25    public void test() {26        assertThatThrownBy(() -> {27            method();28        }).isInstanceOf(IllegalArgumentException.class)29                .havingCause().isInstanceOf(RuntimeException.class).havingMessage("Invalid argument");30    }31    private void method() {32        throw new IllegalArgumentException("Illegal argument", new RuntimeException("Invalid argument"));33    }34}35import static org.assertj.core.api.Assertions.*;36import static org.assertj.core.api.ThrowableAssertAlternative.*;37public class TestException {38    public void test() {39        assertThatThrownBy(() -> {40            throw new IllegalArgumentException("Illegal argument");41        }).isInstanceOf(IllegalArgumentException.class)42                .hasNoCause();43    }44}45import static org.assertj.core.api.Assertions.*;46import static org.assertj.core.api.Th

havingCause

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.jupiter.api.Test;3public class AssertJThrowableAssertAlternativeTest {4    public void test() {5        Assertions.assertThatThrownBy(() -> {6            throw new IllegalArgumentException("message", new RuntimeException("cause"));7        }).isInstanceOf(IllegalArgumentException.class)8                .hasMessageContaining("message")9                .hasMessageStartingWith("Illegal")10                .hasMessageEndingWith("ge")11                .havingCause()12                .isInstanceOf(RuntimeException.class)13                .hasMessageContaining("cause")14                .hasMessageStartingWith("Runt")15                .hasMessageEndingWith("e");16    }17}18The stacktrace was: org.assertj.core.api.ThrowableAssertAlternative.havingCause(ThrowableAssertAlternative.java:95)19org.assertj.core.api.ThrowableAssertAlternative.havingCause(ThrowableAssertAlternative.java:35)20com.baeldung.throwable.AssertJThrowableAssertAlternativeTest.test(AssertJThrowableAssertAlternativeTest.java:22)

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