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

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

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

Source:Throwables.java

...414    throw failures.failure(info, shouldHaveSuppressedException(actual, expectedSuppressedException));415  }416  private static void doCommonCheckForMessages(AssertionInfo info, Throwable actual, CharSequence[] values) {417    assertNotNull(info, actual);418    checkIsNotNull(values);419    checkIsNotEmpty(values);420    checkCharSequenceArrayDoesNotHaveNullElements(values);421  }422  private static void assertNotNull(AssertionInfo info, Throwable actual) {423    Objects.instance().assertNotNull(info, actual);424  }425  private static void checkIsNotNull(CharSequence... values) {426    if (values == null) throw arrayOfValuesToLookForIsNull();427  }428  private static void checkIsNotEmpty(CharSequence... values) {429    if (values.length == 0) throw arrayOfValuesToLookForIsEmpty();430  }431  private static void checkCharSequenceArrayDoesNotHaveNullElements(CharSequence[] values) {432    if (values.length == 1) {433      checkCharSequenceIsNotNull(values[0]);434    } else {435      for (int i = 0; i < values.length; i++) {436        requireNonNull(values[i], "Expecting CharSequence elements not to be null but found one at index " + i);437      }438    }439  }...

checkIsNotNull

Using AI Code Generation

1assertThatIllegalArgumentException().isThrownBy(() -> { throw new IllegalArgumentException(); })2  .withMessage("The message")3  .withMessageContaining("The message")4  .withMessageMatching("The message")5  .withMessageStartingWith("The message")6  .withMessageEndingWith("The message")7  .withCause(new RuntimeException())8  .withCauseInstanceOf(RuntimeException.class)9  .withCauseExactlyInstanceOf(RuntimeException.class)10  .withCauseMessage("The cause message")11  .withCauseMessageContaining("The cause message")12  .withCauseMessageMatching("The cause message")13  .withCauseMessageStartingWith("The cause message")14  .withCauseMessageEndingWith("The cause message")15  .withStackTraceContaining("The stacktrace")16  .withStackTraceContainingOnlyOnce("The stacktrace")17  .withStackTraceContainingSequence("The stacktrace")18  .withStackTraceContainingSequenceOnlyOnce("The stacktrace")19  .withStackTraceContainingSubsequence("The stacktrace")20  .withStackTraceContainingSubsequenceOnlyOnce("The stacktrace")21  .withStackTraceStartingWith("The stacktrace")22  .withStackTraceStartingWithOnlyOnce("The stacktrace")23  .withStackTraceEndingWith("The stacktrace")24  .withStackTraceEndingWithOnlyOnce("The stacktrace")25  .withStackTraceMatching("The stacktrace")26  .withStackTraceMatchingOnlyOnce("The stacktrace")27  .withNoCause();28assertThatNullPointerException().isThrownBy(() -> { throw new NullPointerException(); })29  .withMessage("The message")30  .withMessageContaining("The message")31  .withMessageMatching("The message")32  .withMessageStartingWith("The message")33  .withMessageEndingWith("The message")34  .withCause(new RuntimeException())35  .withCauseInstanceOf(RuntimeException.class)36  .withCauseExactlyInstanceOf(RuntimeException.class)37  .withCauseMessage("The cause message")38  .withCauseMessageContaining("The cause message")39  .withCauseMessageMatching("The cause message")40  .withCauseMessageStartingWith("The cause message")41  .withCauseMessageEndingWith("The cause message")42  .withStackTraceContaining("The stacktrace")43  .withStackTraceContainingOnlyOnce("The stacktrace")44  .withStackTraceContainingSequence("The stacktrace")45  .withStackTraceContainingSequenceOnlyOnce("The stacktrace")

checkIsNotNull

Using AI Code Generation

1import org.junit.jupiter.api.Test;2import org.junit.jupiter.api.function.Executable;3import org.junit.jupiter.params.ParameterizedTest;4import org.junit.jupiter.params.provider.CsvSource;5import org.junit.jupiter.params.provider.ValueSource;6import static org.assertj.core.api.Assertions.assertThat;7import static org.assertj.core.api.Assertions.assertThatExceptionOfType;8import static org.assertj.core.api.Assertions.assertThatNullPointerException;9import static org.assertj.core.api.Assertions.assertThatThrownBy;10import static org.assertj.core.api.Assertions.catchThrowable;11import static org.assertj.core.api.Assertions.catchThrowableOfType;12import static org.assertj.core.api.Assertions.catchThrowableType;13import static org.assertj.core.api.Assertions.fail;

checkIsNotNull

Using AI Code Generation

1public class Throwables_checkIsNotNull_Test {2    public void should_pass_if_Throwable_is_not_null() {3        Throwable actual = new Throwable();4        Throwables.checkIsNotNull(actual);5    }6    public void should_fail_if_Throwable_is_null() {7        Throwable actual = null;8        AssertionError assertionError = expectAssertionError(() -> Throwables.checkIsNotNull(actual));9        then(assertionError).hasMessage(actualIsNull());10    }11}12public class Throwables_checkIsNotNull_Test {13    public void should_pass_if_Throwable_is_not_null() {14        Throwable actual = new Throwable();15        Throwables.checkIsNotNull(actual);16    }17    public void should_fail_if_Throwable_is_null() {18        Throwable actual = null;19        AssertionError assertionError = expectAssertionError(() -> Throwables.checkIsNotNull(actual));20        then(assertionError).hasMessage(actualIsNull());21    }22}23public class Throwables_checkIsNotNull_Test {

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.