Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

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

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

Source:ThrowableAssertAlternative_havingRootCause_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 havingRootCause")21class ThrowableAssertAlternative_havingRootCause_Test {22  @Test23  void should_return_root_cause_if_throwable_has_cause() {24    // GIVEN25    Throwable rootCause = new Throwable("root message");26    Throwable throwable = new Throwable("top level message", new Throwable("cause message", rootCause));27    // WHEN28    ThrowableAssertAlternative<?> rootCauseAssertions = new ThrowableAssertAlternative<>(throwable).havingRootCause();29    // THEN30    assertThat(rootCauseAssertions.actual).isSameAs(rootCause);31  }32  @Test33  void should_fail_if_throwable_has_no_root_cause() {34    // GIVEN35    Throwable throwable = new Throwable("top level message");36    ThrowableAssertAlternative<Throwable> taa = new ThrowableAssertAlternative<>(throwable);37    // WHEN38    AssertionError error = expectAssertionError(taa::havingRootCause);39    // THEN40    assertThat(error).hasMessage(shouldHaveRootCause(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::havingRootCause);48    // THEN49    assertThat(error).hasMessage(shouldNotBeNull().create());50  }51}...

havingRootCause

Using AI Code Generation

1import org.assertj.core.api.ThrowableAssertAlternative;2import org.junit.jupiter.api.Test;3import org.junit.jupiter.api.extension.ExtendWith;4import org.mockito.junit.jupiter.MockitoExtension;5import java.io.IOException;6import static org.assertj.core.api.Assertions.assertThat;7import static org.assertj.core.api.Assertions.assertThatThrownBy;8@ExtendWith(MockitoExtension.class)9public class HavingRootCauseTest {10    public void testHavingRootCause() {11        assertThatThrownBy(() -> {12            try {13                throw new IOException("I/O error");14            } catch (IOException e) {15                throw new IllegalStateException(e);16            }17        })18                .isInstanceOf(IllegalStateException.class)19                .hasMessage("I/O error")20                .hasRootCauseInstanceOf(IOException.class)21                .havingRootCause()22                .hasMessage("I/O error");23    }24}25	at org.assertj.core.api.ThrowableAssertAlternative.havingRootCause(ThrowableAssertAlternative.java:144)26	at org.example.HavingRootCauseTest.testHavingRootCause(Hav

havingRootCause

Using AI Code Generation

1ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);2throwableAssertAlternative.havingRootCause(throwable);3ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);4throwableAssertAlternative.havingRootCauseMessage("message");5ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);6throwableAssertAlternative.havingRootCauseInstanceOf(throwable.getClass());7ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);8throwableAssertAlternative.havingRootCauseExactlyInstanceOf(throwable.getClass());9ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);10throwableAssertAlternative.havingCause(throwable);11ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);12throwableAssertAlternative.havingCauseInstanceOf(throwable.getClass());13ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);14throwableAssertAlternative.havingCauseExactlyInstanceOf(throwable.getClass());15ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);16throwableAssertAlternative.havingStackTraceContaining("message");17ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);18throwableAssertAlternative.havingNoCause();19ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);20throwableAssertAlternative.havingMessage("message");21ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);22throwableAssertAlternative.havingMessageContaining("message");23ThrowableAssertAlternative throwableAssertAlternative = assertThat(throwable);

havingRootCause

Using AI Code Generation

1assertThatThrownBy(() -> { throw new Exception("boom!"); })2  .havingRootCause()3  .withMessage("boom!");4assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!")); })5  .havingRootCauseInstanceOf(RuntimeException.class)6  .withMessage("boom!");7assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })8  .havingRootCauseInstanceOf(IllegalArgumentException.class)9  .withMessage("boom!");10assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })11  .havingRootCause()12  .withMessage("boom!");13assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })14  .havingRootCause()15  .withMessage("boom!");16assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })17  .havingRootCause()18  .withMessage("boom!");19assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })20  .havingRootCause()21  .withMessage("boom!");22assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })23  .havingRootCause()24  .withMessage("boom!");25assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })26  .havingRootCause()27  .withMessage("boom!");28assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })29  .havingRootCause()30  .withMessage("boom!");31assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })32  .havingRootCause()33  .withMessage("boom!");34assertThatThrownBy(() -> { throw new Exception("boom!", new RuntimeException("boom!", new IllegalArgumentException("boom!"))); })35  .havingRootCause()36  .withMessage("boom!");37assertThatThrownBy(() -> { throw new Exception

havingRootCause

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 java.util.function.Supplier;5import org.junit.jupiter.api.Test;6public class ThrowableAssertAlternativeTest {7    public void shouldPassIfGivenThrowableHasGivenCause() {8        Throwable cause = new IOException("boom");9        Supplier<Throwable> supplier = () -> new RuntimeException("boom", cause);10        assertThatThrownBy(supplier)11                .hasRootCause(cause);12    }13    public void shouldFailIfGivenThrowableHasNotGivenCause() {14        Throwable cause = new IOException("boom");15        Supplier<Throwable> supplier = () -> new RuntimeException("boom");16        assertThatThrownBy(supplier)17                .hasRootCause(cause);18    }19}20	at org.assertj.core.api.ThrowableAssertAlternative.hasRootCause(ThrowableAssertAlternative.java:79)21	at org.assertj.core.api.ThrowableAssertAlternative.hasRootCause(ThrowableAssertAlternative.java:73)22	at ThrowableAssertAlternativeTest.shouldFailIfGivenThrowableHasNotGivenCause(ThrowableAssertAlternativeTest.java:27)

havingRootCause

Using AI Code Generation

1assertThat(throwable).havingRootCause().isInstanceOf(RuntimeException.class);2assertThat(throwable).havingRootCause().hasMessageContaining("error");3assertThat(throwable).havingRootCauseInstanceOf(RuntimeException.class);4assertThat(throwable).havingRootCauseInstanceOf(RuntimeException.class).hasMessageContaining("error");5assertThat(throwable).havingRootCauseMessage("error");6assertThat(throwable).havingRootCauseMessageContaining("error");7assertThat(throwable).havingRootCauseMessageMatching("error");8assertThat(throwable).havingRootCauseMessageStartingWith("error");9assertThat(throwable).havingRootCauseMessageEndingWith("error");10assertThat(throwable).havingRootCauseMessageEqualTo("error");11assertThat(throwable).havingRootCauseMessageNotEqualTo("error");12assertThat(throwable).havingRootCauseMessageNotContaining("error");13assertThat(throwable).havingRootCauseMessageNotStartingWith("error");14assertThat(throwable).havingRootCauseMessageNotEndingWith("error");15assertThat(throwable).havingRootCauseMessageNotMatching("error");

havingRootCause

Using AI Code Generation

1Throwable rootCause = new Throwable();2Throwable exception = new Throwable(rootCause);3assertThat(exception).havingRootCause().isEqualTo(rootCause);4[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ assertj-core ---5  symbol:   method havingRootCause()6[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile (default-testCompile) on project assertj-core: Compilation failure7[ERROR]   symbol:   method havingRootCause()8org.apache.maven.lifecycle.LifecycleExecutionException: Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile (default-testCompile) on project assertj-core: Compilation failure9  symbol:   method havingRootCause()10	at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:213)

havingRootCause

Using AI Code Generation

1public void testRootCause() {2  Throwable exception = new Throwable(new IllegalArgumentException());3  assertThat(exception).havingRootCause().isInstanceOf(IllegalArgumentException.class);4}5public void testRootCause() {6  Throwable exception = new Throwable(new NullPointerException());7  assertThat(exception).havingRootCause().isInstanceOf(NullPointerException.class);8}9public void testRootCause() {10  Throwable exception = new Throwable(new NullPointerException("test"));11  assertThat(exception).havingRootCause().isInstanceOf(NullPointerException.class).hasMessage("test");12}13public void testRootCause() {14  Throwable exception = new Throwable(new NullPointerException("test", new RuntimeException()));15  assertThat(exception).havingRootCause().isInstanceOf(NullPointerException.class).hasMessage("test").hasCauseInstanceOf(RuntimeException.class);16}17public void testRootCause() {18  Throwable exception = new Throwable(new NullPointerException(new RuntimeException()));19  assertThat(exception).havingRootCause().isInstanceOf(NullPointerException.class).hasCauseInstanceOf(RuntimeException.class);20}

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.