How to use ShouldHaveCauseExactlyInstance class of org.assertj.core.error package

Best Assertj code snippet using org.assertj.core.error.ShouldHaveCauseExactlyInstance

Source:Throwables_assertHasCauseExactlyInstanceOf_Test.java Github

copy

Full Screen

...12 */13package org.assertj.core.internal.throwables;14import org.assertj.core.api.AssertionInfo;15import org.assertj.core.api.Assertions;16import org.assertj.core.error.ShouldHaveCauseExactlyInstance;17import org.assertj.core.internal.ThrowablesBaseTest;18import org.assertj.core.test.TestData;19import org.assertj.core.test.TestFailures;20import org.assertj.core.util.FailureMessages;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}...

Full Screen

Full Screen

ShouldHaveCauseExactlyInstance

Using AI Code Generation

copy

Full Screen

1@DisplayName("should have cause exactly instance of")2 void shouldHaveCauseExactlyInstance() {3 Throwable cause = new Throwable("cause");4 Throwable throwable = new Throwable("throwable", cause);5 ThrowableAssert.ThrowingCallable code = () -> assertThat(throwable).hasCauseExactlyInstanceOf(NullPointerException.class);6 assertThatThrownBy(code)7 .isInstanceOf(AssertionError.class)8 .hasMessage(ShouldHaveCauseExactlyInstance.shouldHaveCauseExactlyInstance(throwable, NullPointerException.class).create());9 }10}

Full Screen

Full Screen

ShouldHaveCauseExactlyInstance

Using AI Code Generation

copy

Full Screen

1import org.assertj.core.error.ShouldHaveCauseExactlyInstance;2import org.assertj.core.error.ErrorMessageFactory;3import java.util.Map;4import static org.assertj.core.api.Assertions.assertThat;5public class ShouldHaveCauseExactlyInstanceExample {6 public static void main(String args[]) {7 try {8 throw new Exception("error", new RuntimeException("cause"));9 } catch (Exception e) {10 ErrorMessageFactory factory = ShouldHaveCauseExactlyInstance.shouldHaveCauseExactlyInstance(e, RuntimeException.class);11 Map<String, Object> data = factory.create();12 assertThat(data.get("message")).isEqualTo("Expecting exception with cause exactly instance of: java.lang.RuntimeException but was: java.lang.RuntimeException");13 }14 }15}16{message=Expecting exception with cause exactly instance of: java.lang.RuntimeException but was: java.lang.RuntimeException}

Full Screen

Full Screen

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.

LambdaTest Learning Hubs:

YouTube

You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.

Run Assertj automation tests on LambdaTest cloud grid

Perform automation testing on 3000+ real desktop and mobile devices online.

Most used methods in ShouldHaveCauseExactlyInstance

Test Your Web Or Mobile Apps On 3000+ Browsers

Signup for free

Try LambdaTest Now !!

Get 100 minutes of automation test minutes FREE!!

Next-Gen App & Browser Testing Cloud

Was this article helpful?

Helpful

NotHelpful