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How to use cause method of org.assertj.core.api.AbstractThrowableAssert class

Best Assertj code snippet using org.assertj.core.api.AbstractThrowableAssert.cause

Source:VAssertions.java

1/*2 *  Copyright (C) 2021 VSCT3 *4 * Licensed under the Apache License, Version 2.0 (the "License");5 * you may not use this file except in compliance with the License.6 * You may obtain a copy of the License at7 *8 * http://www.apache.org/licenses/LICENSE-2.09 *10 * Unless required by applicable law or agreed to in writing, software11 * distributed under the License is distributed on an "AS IS" BASIS,12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.13 * See the License for the specific language governing permissions and14 * limitations under the License.15 */16package com.vsct.testing.tool;17import com.vsct.component.util.Boundaries;18import com.vsct.component.util.IntBoundaries;19import com.vsct.component.util.ctrl.Either;20import com.vsct.component.util.ctrl.Try;21import org.assertj.core.api.AbstractObjectAssert;22import org.assertj.core.api.AbstractThrowableAssert;23import org.assertj.core.api.Assertions;24import org.assertj.core.api.ObjectAssert;25import org.assertj.core.api.SoftAssertions;26/**27 * @since 1.028 */29public class VAssertions {30    public static <E> void assertBoundaries(Boundaries<E> actual, E expectedMin, E expectedMax) {31        final SoftAssertions softly = new SoftAssertions();32        softly.assertThat(actual.getMin()).as("min").isEqualTo(expectedMin);33        softly.assertThat(actual.getMax()).as("max").isEqualTo(expectedMax);34        softly.assertAll();35    }36    public static void assertIntBoundaries(IntBoundaries actual, int expectedMin, int expectedMax) {37        final SoftAssertions softly = new SoftAssertions();38        softly.assertThat(actual.getMin()).as("min").isEqualTo(expectedMin);39        softly.assertThat(actual.getMax()).as("max").isEqualTo(expectedMax);40        softly.assertAll();41    }42    public static <L, R> EitherAssert<L, R> assertThat(Either<L, R> actual) {43        return new EitherAssert<>(actual);44    }45    public static <E> TryAssert<E> assertThat(Try<E> actual) {46        return new TryAssert<>(actual);47    }48    public static class EitherAssert<L, R>49            extends AbstractObjectAssert<EitherAssert<L, R>, Either<L, R>> {50        EitherAssert(Either<L, R> actual) {51            super(actual, EitherAssert.class);52        }53        /**54         * unboxing de la partie alternative55         *56         * @return {@code ObjetAssert} du bon type57         * @throws AssertionError si l'instance Ã©tait {@link Either.Right}58         */59        public ObjectAssert<L> left() {60            if (actual.isRight()) {61                throw new AssertionError("expected:<Left[â¦]> but was:<" + actual + ">");62            }63            return new ObjectAssert<>(actual.getLeft());64        }65        /**66         * unboxing de la partie nominale67         *68         * @return {@code ObjetAssert} du bon type69         * @throws AssertionError si l'instance Ã©tait {@link Either.Left}70         */71        public ObjectAssert<R> right() {72            if (!actual.isRight()) {73                throw new AssertionError("expected:<Right[â¦]> but was:<" + actual + ">");74            }75            return new ObjectAssert<>(actual.get());76        }77    }78    public static class TryAssert<E>79            extends AbstractObjectAssert<TryAssert<E>, Try<E>> {80        TryAssert(Try<E> actual) {81            super(actual, TryAssert.class);82        }83        /**84         * unboxing de l'exception85         *86         * @param expected point de comparaison87         * @param <X>      type d'erreur attendue88         * @return {@code AbstractThrowableAssert} du bon type89         * @throws AssertionError si l'instance Ã©tait {@link Try.Success}90         */91        @SuppressWarnings("unchecked")92        public <X extends RuntimeException> AbstractThrowableAssert<?, X> failureOfType(Class<X> expected) {93            if (!actual.isFailure(expected)) {94                throw new AssertionError("expected:<Failure[" + expected.getName() + "]> but was:<" + actual + ">");95            }96            return (AbstractThrowableAssert<?, X>) Assertions.assertThat(actual.getCause());97        }98        /**99         * unboxing de la partie nominale100         *101         * @return {@code ObjetAssert} du bon type102         * @throws AssertionError si l'instance Ã©tait {@link Try.Failure}103         */104        public ObjectAssert<E> success() {105            if (!actual.isSuccess()) {106                throw new AssertionError("expected:<Success[â¦]> but was:<" + actual + ">");107            }108            return new ObjectAssert<>(actual.get());109        }110    }111}...

Source:FlinkAssertions.java

...32    @SuppressWarnings({"rawtypes", "unused"})33    public static final InstanceOfAssertFactory<Stream, ListAssert<Throwable>> STREAM_THROWABLE =34            new InstanceOfAssertFactory<>(Stream.class, Assertions::<Throwable>assertThat);35    /**36     * Shorthand to assert the chain of causes includes a {@link Throwable} matching a specific37     * {@link Class} and containing the provided message. Same as:38     *39     * <pre>{@code40     * assertThatChainOfCauses(throwable)41     *     .anySatisfy(42     *          cause ->43     *              assertThat(cause)44     *                  .isInstanceOf(clazz)45     *                  .hasMessageContaining(containsMessage));46     * }</pre>47     */48    public static ThrowingConsumer<? super Throwable> anyCauseMatches(49            Class<? extends Throwable> clazz, String containsMessage) {50        return t ->51                assertThatChainOfCauses(t)52                        .anySatisfy(53                                cause ->54                                        assertThat(cause)55                                                .isInstanceOf(clazz)56                                                .hasMessageContaining(containsMessage));57    }58    /**59     * Shorthand to assert the chain of causes includes a {@link Throwable} matching a specific60     * {@link Class} and containing the provided message. Same as:61     *62     * <pre>{@code63     * assertThatChainOfCauses(throwable)64     *     .anySatisfy(65     *          cause ->66     *              assertThat(cause)67     *                  .hasMessageContaining(containsMessage));68     * }</pre>69     */70    public static ThrowingConsumer<? extends Throwable> anyCauseMatches(String containsMessage) {71        return t ->72                assertThatChainOfCauses(t)73                        .anySatisfy(t1 -> assertThat(t1).hasMessageContaining(containsMessage));74    }75    /**76     * Shorthand to assert chain of causes. Same as:77     *78     * <pre>{@code79     * assertThat(throwable)80     *     .extracting(FlinkAssertions::chainOfCauses, FlinkAssertions.STREAM_THROWABLE)81     * }</pre>82     */83    public static ListAssert<Throwable> assertThatChainOfCauses(Throwable root) {84        return assertThat(root).extracting(FlinkAssertions::chainOfCauses, STREAM_THROWABLE);85    }86    /**87     * You can use this method in combination with {@link88     * AbstractThrowableAssert#extracting(Function, AssertFactory)} to perform assertions on a chain89     * of causes. For example:90     *91     * <pre>{@code92     * assertThat(throwable)93     *     .extracting(FlinkAssertions::chainOfCauses, FlinkAssertions.STREAM_THROWABLE)94     * }</pre>95     *96     * @return the list is ordered from the current {@link Throwable} up to the root cause.97     */98    public static Stream<Throwable> chainOfCauses(Throwable throwable) {99        if (throwable == null) {100            return Stream.empty();101        }102        if (throwable.getCause() == null) {103            return Stream.of(throwable);104        }105        return Stream.concat(Stream.of(throwable), chainOfCauses(throwable.getCause()));106    }107}...

Source:StatusCodeAssertions.java

1/**2 * Copyright (c) 2009 - 2022 Red Hat, Inc.3 *4 * This software is licensed to you under the GNU General Public License,5 * version 2 (GPLv2). There is NO WARRANTY for this software, express or6 * implied, including the implied warranties of MERCHANTABILITY or FITNESS7 * FOR A PARTICULAR PURPOSE. You should have received a copy of GPLv28 * along with this software; if not, see9 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.10 *11 * Red Hat trademarks are not licensed under GPLv2. No permission is12 * granted to use or replicate Red Hat trademarks that are incorporated13 * in this software or its documentation.14 */15package org.candlepin.spec.bootstrap.assertions;16import static org.assertj.core.api.Assertions.assertThat;17import org.candlepin.invoker.client.ApiException;18import org.candlepin.spec.bootstrap.client.request.Response;19import org.assertj.core.api.AbstractThrowableAssert;20import org.assertj.core.api.AssertionsForClassTypes;21import org.assertj.core.api.ThrowableAssert;22import java.util.function.Supplier;23public final class StatusCodeAssertions {24    private StatusCodeAssertions() {25        throw new UnsupportedOperationException();26    }27    public static AbstractThrowableAssert<?, ? extends Throwable> assertBadRequest(28        ThrowableAssert.ThrowingCallable callable) {29        ApiException exception = catchApiException(callable);30        return assertReturnCode(400, exception);31    }32    public static AbstractThrowableAssert<?, ? extends Throwable> assertUnauthorized(33        ThrowableAssert.ThrowingCallable callable) {34        ApiException exception = catchApiException(callable);35        return assertReturnCode(401, exception);36    }37    public static AbstractThrowableAssert<?, ? extends Throwable> assertForbidden(38        ThrowableAssert.ThrowingCallable callable) {39        ApiException exception = catchApiException(callable);40        return assertReturnCode(403, exception);41    }42    public static AbstractThrowableAssert<?, ? extends Throwable> assertNotFound(43        ThrowableAssert.ThrowingCallable callable) {44        ApiException exception = catchApiException(callable);45        return assertReturnCode(404, exception);46    }47    public static AbstractThrowableAssert<?, ? extends Throwable> assertGone(48        ThrowableAssert.ThrowingCallable callable) {49        ApiException exception = catchApiException(callable);50        return assertReturnCode(410, exception);51    }52    public static CandlepinStatusAssert assertThatStatus(53        ThrowableAssert.ThrowingCallable callable) {54        ApiException exception = catchApiException(callable);55        return new CandlepinStatusAssert(exception);56    }57    public static CandlepinStatusAssert assertThatStatus(58        Supplier<Response> callable) {59        ApiException exception = new ApiExceptionAdapter(callable.get());60        return new CandlepinStatusAssert(exception);61    }62    public static ApiException catchApiException(ThrowableAssert.ThrowingCallable code) {63        ApiException exception = AssertionsForClassTypes.catchThrowableOfType(code, ApiException.class);64        assertThat(exception)65            .as("Expected ApiException but nothing was thrown")66            .isNotNull()67            .as("Expected successful request")68            // Cause will be empty if we successfully reached the server69            .hasNoCause();70        return exception;71    }72    private static AbstractThrowableAssert<?, ? extends Throwable> assertReturnCode(73        int statusCode, ApiException exception) {74        return assertThat(exception).hasFieldOrPropertyWithValue("code", statusCode);75    }76}...

cause

Using AI Code Generation

1import org.assertj.core.api.AbstractThrowableAssert;2import org.assertj.core.api.Assertions;3import org.junit.Test;4public class AssertJTest {5    public void testAssertJ() {6        try {7            throw new RuntimeException("Test");8        } catch (Exception e) {9            AbstractThrowableAssert<?, ? extends Throwable> assertion = Assertions.assertThat(e);10            assertion.hasMessage("Test");11        }12    }13}14import org.assertj.core.api.AbstractThrowableAssert;15import org.assertj.core.api.Assertions;16import org.junit.Test;17public class AssertJTest {18    public void testAssertJ() {19        try {20            throw new RuntimeException("Test");21        } catch (Exception e) {22            AbstractThrowableAssert<?, ? extends Throwable> assertion = Assertions.assertThat(e);23            assertion.hasMessageContaining("Test");24        }25    }26}27import org.assertj.core.api.AbstractThrowableAssert;28import org.assertj.core.api.Assertions;29import org.junit.Test;30public class AssertJTest {31    public void testAssertJ() {32        try {33            throw new RuntimeException("Test");34        } catch (Exception e) {35            AbstractThrowableAssert<?, ? extends Throwable> assertion = Assertions.assertThat(e);36            assertion.hasMessageStartingWith("

cause

Using AI Code Generation

1public class Cause {2	public static void main(String[] args) {3		Throwable throwable = new Throwable("Cause");4		Throwable throwable2 = new Throwable("Cause2", throwable);5		Throwable throwable3 = new Throwable("Cause3", throwable2);6		Throwable throwable4 = new Throwable("Cause4", throwable3);7		Throwable throwable5 = new Throwable("Cause5", throwable4);8		Throwable throwable6 = new Throwable("Cause6", throwable5);9		Throwable throwable7 = new Throwable("Cause7", throwable6);10		Throwable throwable8 = new Throwable("Cause8", throwable7);11		Throwable throwable9 = new Throwable("Cause9", throwable8);12		Throwable throwable10 = new Throwable("Cause10", throwable9);13		Throwable throwable11 = new Throwable("Cause11", throwable10);14		Throwable throwable12 = new Throwable("Cause12", throwable11);15		Throwable throwable13 = new Throwable("Cause13", throwable12);16		Throwable throwable14 = new Throwable("Cause14", throwable13);17		Throwable throwable15 = new Throwable("Cause15", throwable14);18		Throwable throwable16 = new Throwable("Cause16", throwable15);19		Throwable throwable17 = new Throwable("Cause17", throwable16);20		Throwable throwable18 = new Throwable("Cause18", throwable17);21		Throwable throwable19 = new Throwable("Cause19", throwable18);22		Throwable throwable20 = new Throwable("Cause20", throwable19);23		Throwable throwable21 = new Throwable("Cause21", throwable20);24		Throwable throwable22 = new Throwable("Cause22", throwable21);25		Throwable throwable23 = new Throwable("Cause23", throwable22);26		Throwable throwable24 = new Throwable("Cause24", throwable23);27		Throwable throwable25 = new Throwable("Cause25", throwable24);28		Throwable throwable26 = new Throwable("Cause26", throwable25);29		Throwable throwable27 = new Throwable("Cause27", throwable26);30		Throwable throwable28 = new Throwable("Cause28", throwable27);31		Throwable throwable29 = new Throwable("Cause29", throwable28);32		Throwable throwable30 = new Throwable("Cause30", throwable29);33		Throwable throwable31 = new Throwable("Cause31", throwable30);34		Throwable throwable32 = new Throwable("Cause32", throwable31);35		Throwable throwable33 = new Throwable("Cause33

cause

Using AI Code Generation

1package org.kodejava.example.lang;2public class CauseDemo {3    public static void main(String[] args) {4        try {5            int data = 5 / 0;6        } catch (ArithmeticException e) {7            org.assertj.core.api.Assertions.assertThat(e)8                    .hasCauseInstanceOf(ArithmeticException.class);9        }10    }11}

cause

Using AI Code Generation

1public class AssertJTest {2    public static void main(String[] args) {3        String str = "Hello";4        assertThatNullPointerException().isThrownBy(() -> {5            str = null;6            str.equals("Hi");7        }).withMessage("str is null");8    }9}10public class AssertJTest {11    public static void main(String[] args) {12        String str = "Hello";13        assertThatNullPointerException().isThrownBy(() -> {14            str = null;15            str.equals("Hi");16        }).withMessage("str is null").withCause(new Exception("str is null"));17    }18}19public class AssertJTest {20    public static void main(String[] args) {21        String str = "Hello";22        assertThatNullPointerException().isThrownBy(() -> {23            str = null;24            str.equals("Hi");25        }).withMessage("str is null").withCause(new NullPointerException("str is null"));26    }27}28public class AssertJTest {29    public static void main(String[] args) {30        String str = "Hello";31        assertThatNullPointerException().isThrownBy(() -> {32            str = null;33            str.equals("Hi");34        }).withMessage("str is null").withCause(new NullPointerException("str is null")).withStackTraceContaining("str is null");35    }36}37public class AssertJTest {38    public static void main(String[] args) {39        String str = "Hello";

cause

Using AI Code Generation

1import org.assertj.core.api.*;2import org.junit.Test;3public class AssertJTest {4    public void test() {5        Throwable thrown = catchThrowable(() -> {6            throw new Exception("I am a checked exception");7        });8        assertThat(thrown).isInstanceOf(Exception.class).hasMessage("I am a checked exception").hasNoCause();9    }10}11at org.junit.Assert.fail(Assert.java:88)12at org.junit.Assert.failNotEquals(Assert.java:834)13at org.junit.Assert.assertThat(Assert.java:1006)14at org.junit.Assert.assertThat(Assert.java:1076)15at org.assertj.core.api.AbstractAssert.isInstanceOf(AbstractAssert.java:164)16at org.assertj.core.api.AbstractThrowableAssert.isInstanceOf(AbstractThrowableAssert.java:58)17at org.assertj.core.api.AbstractThrowableAssert.isInstanceOf(AbstractThrowableAssert.java:29)18at AssertJTest.test(AssertJTest.java:13)19at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)20at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)21at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)22at java.lang.reflect.Method.invoke(Method.java:498)23at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)24at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)25at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)26at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)27at org.junit.internal.runners.statements.RunBefores.evaluate(Run

cause

Using AI Code Generation

1public class AssertJExceptionCauseTest {2    public void whenExceptionThrown_thenAssertionSucceeds() {3        Throwable thrown = catchThrowable(() -> {4            throw new IllegalArgumentException("Illegal argument", new NullPointerException("Null argument"));5        });6        assertThat(thrown).hasCauseInstanceOf(NullPointerException.class).hasMessageContaining("Illegal argument");7    }8}9	at org.junit.Assert.assertEquals(Assert.java:115)10	at org.junit.Assert.assertEquals(Assert.java:144)11	at com.baeldung.assertj.exception.AssertJExceptionCauseTest.whenExceptionThrown_thenAssertionSucceeds(AssertJExceptionCauseTest.java:11)

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