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

How to use withThrowableThat method of org.assertj.core.api.WithThrowable class

Best Assertj code snippet using org.assertj.core.api.WithThrowable.withThrowableThat

Source:WithThrowable.java

...20  /**21   * Checks that the underlying throwable is of the given type and returns a {@link ThrowableAssertAlternative} to chain22   * further assertions on the underlying throwable.23   * <p>24   * Equivalent to {@code withThrowableThat().isInstanceOf(type)}25   * @param type the expected {@link Throwable} type26   * @return a {@link ThrowableAssertAlternative} built with underlying throwable.27   */28  public ThrowableAssertAlternative<?> withThrowableOfType(Class<? extends Throwable> type) {29    return withThrowableThat().isInstanceOf(type);30  }31  /**32   * Returns a {@link ThrowableAssertAlternative} to chain assertions on the underlying throwable.33   * @return a {@link ThrowableAssertAlternative} built with underlying throwable.34   */35  @CheckReturnValue36  public ThrowableAssertAlternative<?> withThrowableThat() {37    return new ThrowableAssertAlternative<>(throwable);38  }39}...

withThrowableThat

Using AI Code Generation

1import org.assertj.core.api.WithThrowable;2import org.assertj.core.api.Assertions;3import org.junit.Test;4import java.util.function.Supplier;5public class WithThrowableTest {6    public void testWithThrowableThat() {7        Supplier<Throwable> supplier = () -> {8            return new RuntimeException("This is a test exception");9        };10        WithThrowable withThrowable = Assertions.withThrowable(supplier);11        withThrowable.withThrowableThat().isInstanceOfSatisfying(RuntimeException.class, (t) -> {12            Assertions.assertThat(t.getMessage()).isEqualTo("This is a test exception");13        });14    }15}16at org.junit.Assert.assertEquals(Assert.java:115)17at org.junit.Assert.assertEquals(Assert.java:144)18at org.junit.Assert.assertEquals(Assert.java:151)19at org.junit.Assert.assertEquals(Assert.java:158)20at com.baeldung.throwable.WithThrowableTest.testWithThrowableThat(WithThrowableTest.java:28)

withThrowableThat

Using AI Code Generation

1import org.assertj.core.api.WithThrowable;2import org.junit.jupiter.api.Test;3import static org.assertj.core.api.Assertions.assertThat;4public class WithThrowableTest {5    public void withThrowableTest() {6        WithThrowable withThrowable = new WithThrowable() {7            public void callThrowable() throws Throwable {8                throw new Exception("Exception");9            }10        };11        assertThat(withThrowable).withThrowable().hasMessageContaining("Exception");12    }13}14	at org.assertj.core.internal.Throwables.assertHasMessageContaining(Throwables.java:179)15	at org.assertj.core.api.WithThrowableAssert.hasMessageContaining(WithThrowableAssert.java:79)16	at org.assertj.core.api.WithThrowableAssert.hasMessageContaining(WithThrowableAssert.java:47)17	at WithThrowableTest.withThrowableTest(WithThrowableTest.java:15)18	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)19	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)20	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)21	at java.base/java.lang.reflect.Method.invoke(Method.java:566)22	at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:686)23	at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)24	at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)25	at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)26	at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140)27	at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84)28	at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)29	at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)30	at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)31	at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)

withThrowableThat

Using AI Code Generation

1import static org.assertj.core.api.Assertions.*;2import java.io.IOException;3import org.junit.Test;4public class WithThrowableTest {5	public void testWithThrowable() {6		Throwable thrown = catchThrowable(() -> {7			throw new IOException("boom!");8		});9		assertThat(thrown).isInstanceOf(IOException.class).hasMessage("boom!");10	}11}12	at org.junit.Assert.fail(Assert.java:88)13	at org.junit.Assert.failNotEquals(Assert.java:834)14	at org.junit.Assert.assertSame(Assert.java:782)15	at org.junit.Assert.assertSame(Assert.java:792)16	at org.assertj.core.api.WithThrowableTest.testWithThrowable(WithThrowableTest.java:21)

withThrowableThat

Using AI Code Generation

1package org.assertj.core.api;2import java.util.function.Consumer;3import org.assertj.core.api.ThrowableAssert.ThrowingCallable;4import org.assertj.core.api.WithThrowable;5import org.assertj.core.api.WithThrowable;6public class WithThrowable {7    public static <T extends Throwable> WithThrowable withThrowableThat(ThrowingCallable shouldRaiseThrowable, Class<T>... expectedThrowable) {8        return new WithThrowable(shouldRaiseThrowable, expectedThrowable);9    }10    public static class WithThrowable {11        private final ThrowableAssert.ThrowingCallable shouldRaiseThrowable;12        private final Class<? extends Throwable>[] expectedThrowable;13        public WithThrowable(ThrowableAssert.ThrowingCallable shouldRaiseThrowable, Class<? extends Throwable>[] expectedThrowable) {14            this.shouldRaiseThrowable = shouldRaiseThrowable;15            this.expectedThrowable = expectedThrowable;16        }17        public <E extends Throwable> void isInstanceOf(Class<E> expectedType) {18            assertThatThrownBy(shouldRaiseThrowable)19                .isInstanceOf(expectedType);20        }21        public void hasMessage(String expectedMessage) {22            assertThatThrownBy(shouldRaiseThrowable)23                .hasMessage(expectedMessage);24        }25        public void hasMessageContaining(String expectedMessage) {26            assertThatThrownBy(shouldRaiseThrowable)27                .hasMessageContaining(expectedMessage);28        }29        public void hasMessageMatching(String expectedMessageRegex) {30            assertThatThrownBy(shouldRaiseThrowable)31                .hasMessageMatching(expectedMessageRegex);32        }33        public void hasCauseInstanceOf(Class<? extends Throwable> expectedCauseType) {34            assertThatThrownBy(shouldRaiseThrowable)35                .hasCauseInstanceOf(expectedCauseType);36        }37        public void hasCauseExactlyInstanceOf(Class<? extends Throwable> expectedCauseType) {38            assertThatThrownBy(shouldRaiseThrowable)39                .hasCauseExactlyInstanceOf(expectedCauseType);40        }41        public void hasCauseMessage(String expectedCauseMessage) {42            assertThatThrownBy(shouldRaiseThrowable)43                .hasCauseMessage(expectedCauseMessage);44        }45        public void hasCauseMessageContaining(String expectedCauseMessage) {46            assertThatThrownBy(shouldRaiseThrowable)47                .hasCauseMessageContaining(expectedCauseMessage);48        }49        public void hasCauseMessageMatching(String expectedCauseMessageRegex) {50            assertThatThrownBy(shouldRaiseThrowable)51                .hasCauseMessageMatching(expectedCauseMessageRegex);52        }53        public void satisfies(Consumer<? super Throwable> requirements) {54            assertThatThrownBy(shouldRaiseThrowable)55                .satisfies(requirements);

withThrowableThat

Using AI Code Generation

1import org.junit.Test;2import static org.assertj.core.api.Assertions.*;3public class TestWithThrowable {4    public void testWithThrowable() {5        assertThatThrownBy(() -> {6            throw new IllegalArgumentException("boom!");7        }).isInstanceOf(IllegalArgumentException.class)8                .hasMessageContaining("boom");9    }10}11at org.junit.Assert.assertEquals(Assert.java:115)12at org.junit.Assert.assertEquals(Assert.java:144)13at org.assertj.core.api.ThrowableAssertAlternative.isInstanceOf(ThrowableAssertAlternative.java:97)14at TestWithThrowable.testWithThrowable(TestWithThrowable.java:15)15import org.junit.Test;16import static org.assertj.core.api.Assertions.*;17public class TestWithThrowable {18    public void testWithThrowable() {19        assertThatThrownBy(() -> {20            throw new IllegalArgumentException("boom!");21        }).isInstanceOf(IllegalArgumentException.class)22                .hasMessageContaining("boom");23    }24}25at org.junit.Assert.assertEquals(Assert.java:115)26at org.junit.Assert.assertEquals(Assert.java:144)27at org.assertj.core.api.ThrowableAssertAlternative.isInstanceOf(ThrowableAssertAlternative.java:97)28at TestWithThrowable.testWithThrowable(TestWithThrowable.java:15)29import org.junit.Test;30import static org.assertj.core.api.Assertions.*;31public class TestWithThrowable {32    public void testWithThrowable() {33        assertThatThrownBy(() -> {34            throw new IllegalArgumentException("boom!");35        }).isInstanceOf(IllegalArgumentException.class)36                .hasMessageContaining("boom");37    }38}

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.