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

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

Source:ShouldHaveRootCause.java

...14import static org.assertj.core.util.Preconditions.checkArgument;15import static org.assertj.core.util.Strings.escapePercent;16import static org.assertj.core.util.Throwables.getStackTrace;17import java.util.Objects;18public class ShouldHaveRootCause extends BasicErrorMessageFactory {19  public static ErrorMessageFactory shouldHaveRootCauseWithMessage(Throwable actual, Throwable actualCause,20                                                                   String expectedMessage) {21    checkArgument(actual != null, "actual should not be null");22    checkArgument(expectedMessage != null, "expected root cause message should not be null");23    if (actualCause == null) return new ShouldHaveRootCause(actual, expectedMessage);24    return new ShouldHaveRootCause(actual, actualCause, expectedMessage);25  }26  public static ErrorMessageFactory shouldHaveRootCause(Throwable actual, Throwable actualCause, Throwable expectedCause) {27    checkArgument(actual != null, "actual should not be null");28    checkArgument(expectedCause != null, "expected cause should not be null");29    // actualCause has no cause30    if (actualCause == null) return new ShouldHaveRootCause(actual, expectedCause);31    // same message => different type32    if (Objects.equals(actualCause.getMessage(), expectedCause.getMessage()))33      return new ShouldHaveRootCause(actual, actualCause, expectedCause.getClass());34    // same type => different message35    if (Objects.equals(actualCause.getClass(), expectedCause.getClass()))36      return new ShouldHaveRootCause(actual, actualCause, expectedCause.getMessage());37    return new ShouldHaveRootCause(actual, actualCause, expectedCause);38  }39  public static ErrorMessageFactory shouldHaveRootCause(Throwable actualCause) {40    return new BasicErrorMessageFactory("Expecting actual throwable to have a root cause but it did not, actual was:%n%s",41                                        actualCause);42  }43  private ShouldHaveRootCause(Throwable actual, Throwable actualCause, Throwable expectedCause) {44    super("%n" +45          "Expecting a root cause with type:%n" +46          "  %s%n" +47          "and message:%n" +48          "  %s%n" +49          "but type was:%n" +50          "  %s%n" +51          "and message was:%n" +52          "  %s." +53          "%n" +54          "Throwable that failed the check:%n" +55          "%n" + escapePercent(getStackTrace(actual)), // to avoid AssertJ default String formatting56          expectedCause.getClass().getName(), expectedCause.getMessage(),57          actualCause.getClass().getName(), actualCause.getMessage());58  }59  private ShouldHaveRootCause(Throwable actual, Throwable expectedCause) {60    super("%n" +61          "Expecting a root cause with type:%n" +62          "  %s%n" +63          "and message:%n" +64          "  %s%n" +65          "but actual had no root cause." +66          "%n" +67          "Throwable that failed the check:%n" +68          "%n" + escapePercent(getStackTrace(actual)), // to avoid AssertJ default String formatting69          expectedCause.getClass().getName(), expectedCause.getMessage());70  }71  private ShouldHaveRootCause(Throwable actual, Throwable actualCause, Class<? extends Throwable> expectedCauseClass) {72    super("%n" +73          "Expecting a root cause with type:%n" +74          "  %s%n" +75          "but type was:%n" +76          "  %s." +77          "%n" +78          "Throwable that failed the check:%n" +79          "%n" + escapePercent(getStackTrace(actual)), // to avoid AssertJ default String formatting80          expectedCauseClass.getName(), actualCause.getClass().getName());81  }82  private ShouldHaveRootCause(Throwable actual, String expectedMessage) {83    super("%n" +84          "Expecting a root cause with message:%n" +85          "  %s%n" +86          "but actual had no root cause." +87          "%n" +88          "Throwable that failed the check:%n" +89          "%n" + escapePercent(getStackTrace(actual)), // to avoid AssertJ default String formatting90          expectedMessage);91  }92  private ShouldHaveRootCause(Throwable actual, Throwable actualCause, String expectedCauseMessage) {93    super("%n" +94          "Expecting a root cause with message:%n" +95          "  %s%n" +96          "but message was:%n" +97          "  %s." +98          "%n" +99          "Throwable that failed the check:%n" +100          "%n" + escapePercent(getStackTrace(actual)), // to avoid AssertJ default String formatting101          expectedCauseMessage, actualCause.getMessage());102  }103}...

Source:ShouldHaveRootCause_create_Test.java

...15import org.assertj.core.internal.TestDescription;16import org.junit.jupiter.api.Test;17/**18 * Tests for19 * <code>{@link ShouldHaveRootCause#shouldHaveRootCause(Throwable, Throwable)}</code>20 *21 * @author Jack Gough22 */23public class ShouldHaveRootCause_create_Test {24    private static final TestDescription DESCRIPTION = new TestDescription("TEST");25    @Test26    public void should_create_error_message_for_expected_without_actual() {27        // GIVEN28        Throwable actualCause = null;29        Throwable expectedCause = new RuntimeException("hello");30        // WHEN31        String actual = ShouldHaveRootCause.shouldHaveRootCause(actualCause, expectedCause).create(ShouldHaveRootCause_create_Test.DESCRIPTION);32        // THEN33        Assertions.assertThat(actual).isEqualTo(String.format(("[TEST] %n" + (((("Expecting a root cause with type:%n" + "  <\"java.lang.RuntimeException\">%n") + "and message:%n") + "  <\"hello\">%n") + "but actual had no root cause."))));34    }35    @Test36    public void should_create_error_message_for_unequal_types() {37        // GIVEN38        Throwable actualCause = new IllegalArgumentException("one");39        Throwable expectedCause = new RuntimeException("one");40        // WHEN41        String actual = ShouldHaveRootCause.shouldHaveRootCause(actualCause, expectedCause).create(ShouldHaveRootCause_create_Test.DESCRIPTION);42        // THEN43        Assertions.assertThat(actual).isEqualTo(String.format(("[TEST] %n" + ((("Expecting a root cause with type:%n" + "  <\"java.lang.RuntimeException\">%n") + "but type was:%n") + "  <\"java.lang.IllegalArgumentException\">."))));44    }45    @Test46    public void should_create_error_message_for_unequal_messages() {47        // GIVEN48        Throwable actualCause = new RuntimeException("wibble");49        Throwable expectedCause = new RuntimeException("wobble");50        // WHEN51        String actual = ShouldHaveRootCause.shouldHaveRootCause(actualCause, expectedCause).create(ShouldHaveRootCause_create_Test.DESCRIPTION);52        // THEN53        Assertions.assertThat(actual).isEqualTo(String.format(("[TEST] %n" + ((("Expecting a root cause with message:%n" + "  <\"wobble\">%n") + "but message was:%n") + "  <\"wibble\">."))));54    }55    @Test56    public void should_create_error_message_for_unequal_types_and_messages() {57        // GIVEN58        Throwable actualCause = new RuntimeException("wibble");59        Throwable expectedCause = new IllegalArgumentException("wobble");60        // WHEN61        String actual = ShouldHaveRootCause.shouldHaveRootCause(actualCause, expectedCause).create(ShouldHaveRootCause_create_Test.DESCRIPTION);62        // THEN63        Assertions.assertThat(actual).isEqualTo(String.format(("[TEST] %n" + ((((((("Expecting a root cause with type:%n" + "  <\"java.lang.IllegalArgumentException\">%n") + "and message:%n") + "  <\"wobble\">%n") + "but type was:%n") + "  <\"java.lang.RuntimeException\">%n") + "and message was:%n") + "  <\"wibble\">."))));64    }65}

ShouldHaveRootCause

Using AI Code Generation

1package org.assertj.core.error;2import org.assertj.core.internal.TestDescription;3import org.assertj.core.presentation.StandardRepresentation;4import org.junit.Test;5import static org.assertj.core.api.Assertions.assertThat;6import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCause;7import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseInstanceOf;8public class ShouldHaveRootCause_create_Test {9  public void should_create_error_message() {10    String message = shouldHaveRootCause(new NullPointerException("boom")).create(new TestDescription("TEST"),11                                                                                   new StandardRepresentation());12    assertThat(message).isEqualTo(String.format("[TEST] %n" +13                                                "  <java.lang.NullPointerException: boom>"));14  }15  public void should_create_error_message_with_expected_root_cause() {16    String message = shouldHaveRootCause(new NullPointerException("boom"), new IllegalArgumentException("boom"))17        .create(new TestDescription("TEST"), new StandardRepresentation());18    assertThat(message).isEqualTo(String.format("[TEST] %n" +19                                                "  <java.lang.NullPointerException: boom>"));20  }21  public void should_create_error_message_with_expected_root_cause_type() {22    String message = shouldHaveRootCauseInstanceOf(new NullPointerException("boom"), IllegalArgumentException.class)23        .create(new TestDescription("TEST"), new StandardRepresentation());24    assertThat(message).isEqualTo(String.format("[TEST] %n" +25                                                "  <java.lang.NullPointerException>"));26  }

ShouldHaveRootCause

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCause;3import static org.assertj.core.util.Throwables.getRootCause;4import static org.assertj.core.util.Throwables.getStackTrace;5import java.io.IOException;6import org.junit.Test;7import org.assertj.core.api.ThrowableAssert.ThrowingCallable;8public class ShouldHaveRootCauseTest {9  public void should_create_error_message() {10    Throwable cause = new IOException("boom");11    Throwable exception = new IllegalArgumentException("boom", cause);12    String message = shouldHaveRootCause(exception, cause).create();13    assertThat(message).isEqualTo(String.format("%nExpecting root cause of:%n  %s%nto be:%n  %s%nbut was:%n  %s",14                                                getStackTrace(exception),15                                                getStackTrace(cause),16                                                getStackTrace(getRootCause(exception))));17  }18}19    at org.assertj.core.error.ShouldHaveRootCauseTest.should_create_error_message(ShouldHaveRootCauseTest.java:19)20    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)21    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)22    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)23    at java.lang.reflect.Method.invoke(Method.java:498)24    at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)25    at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)26    at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)27    at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)28    at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:26)29    at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:27)30    at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)31    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)32    at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)33    at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)

ShouldHaveRootCause

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.Assertions.catchThrowable;3public class ShouldHaveRootCause {4    public static void main(String[] args) {5        Throwable throwable = catchThrowable(() -> {6            throw new RuntimeException("boom!");7        });8        assertThat(throwable).hasRootCauseInstanceOf(RuntimeException.class);9    }10}11	at org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCause(ShouldHaveRootCause.java:31)12	at org.assertj.core.internal.Throwables.assertHasRootCauseInstanceOf(Throwables.java:138)13	at org.assertj.core.api.AbstractThrowableAssert.hasRootCauseInstanceOf(AbstractThrowableAssert.java:275)14	at ShouldHaveRootCause.main(ShouldHaveRootCause.java:14)15import static org.assertj.core.api.Assertions.assertThat;16import static org.assertj.core.api.Assertions.catchThrowable;17public class ShouldHaveRootCause {18    public static void main(String[] args) {19        Throwable throwable = catchThrowable(() -> {20            throw new RuntimeException(new Exception("boom!"));21        });22        assertThat(throwable).hasRootCauseInstanceOf(Exception.class);23    }24}25	at org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCause(ShouldHaveRootCause.java:31)26	at org.assertj.core.internal.Throwables.assertHasRootCauseInstanceOf(Throwables.java:138)27	at org.assertj.core.api.AbstractThrowableAssert.hasRootCauseInstanceOf(AbstractThrowableAssert.java:275)28	at ShouldHaveRootCause.main(ShouldHaveRootCause.java:

ShouldHaveRootCause

Using AI Code Generation

1package com.automationrhapsody.assertj;2import static org.assertj.core.api.Assertions.assertThat;3import java.io.IOException;4import org.junit.Test;5public class ShouldHaveRootCauseTest {6    public void testShouldHaveRootCause() {7        try {8            throw new RuntimeException(new IOException("IO Exception"));9        } catch (Exception e) {10            assertThat(e).hasRootCauseInstanceOf(IOException.class);11        }12    }13}

ShouldHaveRootCause

Using AI Code Generation

1package com.automationrhapsody.assertj;2import static org.assertj.core.api.Assertions.assertThat;3import org.junit.Test;4public class ShouldHaveRootCauseTest {5    public void testShouldHaveRootCause() {6        try {7            throw new RuntimeException(new Exception("Root cause"));8        } catch (Exception e) {9            assertThat(e).hasRootCauseMessage("Root cause");10        }11    }12}13Nikolaos Tampakopoulos is a software engineer with 15+ years of experience in the IT industry. He is a Java Champion, an Oracle Certified Master (OCPJP, OCMJD, OCEJPA), and a Certified Scrum Master (CSM). He is the author of the books Java EE 7 Essentials, Java EE 8 Essentials, and Java EE 8 Security Essentials. He is also the author of the Java EE 7 Recipes and Java EE 8 Recipes books. Nikolaos is a committer and PMC member of the Apache OpenWebBeans project. He is a regular speaker at international conferences and Java user groups. You can follow him on Twitter and Lin

ShouldHaveRootCause

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.api.ThrowableAssert;3import org.assertj.core.error.ShouldHaveRootCause;4import org.junit.Test;5public class AssertJTest {6    public void test1() {7        ThrowableAssert.ThrowingCallable code = () -> {8            throw new Exception("test", new Exception("test2"));9        };10        Assertions.assertThatThrownBy(code).hasRootCauseInstanceOf(Exception.class);11    }12    public void test2() {13        ThrowableAssert.ThrowingCallable code = () -> {14            throw new Exception("test", new Exception("test2"));15        };16        Assertions.assertThatThrownBy(code).hasRootCauseInstanceOf(RuntimeException.class);17    }18}19	at org.assertj.core.api.ThrowableAssert.hasRootCauseInstanceOf(ThrowableAssert.java:133)20	at AssertJTest.test2(AssertJTest.java:22)21	at org.assertj.core.api.ThrowableAssert.hasRootCauseInstanceOf(ThrowableAssert.java:133)22	at AssertJTest.test1(AssertJTest.java:16)23package org.assertj.core.error;24import org.assertj.core.internal.*;25import org.assertj.core.util.*;26public class ShouldHaveRootCause extends BasicErrorMessageFactory {27    public static ErrorMessageFactory shouldHaveRootCause(Throwable actual, Class<? extends Throwable> expectedRootCauseType) {28        return new ShouldHaveRootCause(actual, expected

ShouldHaveRootCause

Using AI Code Generation

1import org.junit.Test;2import org.assertj.core.api.Assertions;3import org.assertj.core.error.ShouldHaveRootCause;4import org.assertj.core.internal.TestDescription;5import org.assertj.core.presentation.StandardRepresentation;6import org.assertj.core.util.Throwables;7public class ShouldHaveRootCauseTest {8    public void should_create_error_message() {9        final Throwable actual = Throwables.propagate(new Exception("cause"));10        final Throwable expected = Throwables.propagate(new Exception("root"));11        final String message = ShouldHaveRootCause.shouldHaveRootCause(actual, expected).create(new TestDescription("TEST"), new StandardRepresentation());12        Assertions.assertThat(message).isEqualTo(String.format("[TEST] %n" + "Expecting root cause of:%n" + "  <java.lang.Exception: cause>%n" + "to be:%n" + "  <java.lang.Exception: root>%n" + "but was:%n" + "  <java.lang.Exception: cause>"));13    }14}

ShouldHaveRootCause

Using AI Code Generation

1package com.example;2import org.assertj.core.api.ThrowableAssert;3import org.assertj.core.error.ShouldHaveRootCause;4import org.assertj.core.internal.Failures;5public class AssertJExample {6    public static void main(String[] args) {7        try {8            throw new RuntimeException("This is a RuntimeException");9        } catch (RuntimeException e) {10            Failures.instance().failureInfo().fact("message", "should have root cause");11            Failures.instance().failureInfo().fact("cause", e.getCause());12            Failures.instance().failureInfo().fact("root cause", e);13            ThrowableAssert.assertThrowable(e).hasRootCauseInstanceOf(NullPointerException.class);14        }15    }16}17package com.example;18import org.assertj.core.api.ThrowableAssert;19import org.assertj.core.error.ShouldHaveRootCause;20import org.assertj.core.internal.Failures;21public class AssertJExample {22    public static void main(String[] args) {23        try {24            throw new RuntimeException("This is a RuntimeException");25        } catch (RuntimeException e) {26            Failures.instance().failureInfo().fact("message", "should have root cause");27            Failures.instance().failureInfo().fact("cause", e.getCause());28            Failures.instance().failureInfo().fact("root cause", e);29            ThrowableAssert.assertThrowable(e).hasRootCauseInstanceOf(NullPointerException.class);30        }31    }32}

ShouldHaveRootCause

Using AI Code Generation

1import org.assertj.core.api.*;2import org.assertj.core.error.*;3import org.assertj.core.internal.*;4import org.junit.Test;5public class ShouldHaveRootCauseTest {6    public void test() {7        Assertions.assertThatThrownBy(() -> {8            throw new NullPointerException("Root cause");9        }).hasRootCause(new NullPointerException("Root cause"));10    }11}

ShouldHaveRootCause

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2import static org.assertj.core.api.Assertions.catchThrowable;3import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCause;4import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseInstance;5import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseInstanceOf;6import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseMessage;7import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseMessageContaining;8import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseMessageMatching;9import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseMessageStartingWith;10import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseMessageEndingWith;11import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveRootCauseMessageNull;12import static org.assertj.core.error.ShouldHaveRootCause.shouldHaveNoRootCause;13public class AssertJExceptionRootCauseTest {14    public static void main(String[] args) {15        Throwable throwable = new Throwable(new Throwable(new Throwable(new Throwable())));16        Throwable rootCause = throwable.getCause().getCause().getCause().getCause();17        Throwable actualRootCause = throwable;18        assertThat(actualRootCause).hasRootCause(rootCause);19        assertThat(actualRootCause).hasRootCauseInstanceOf(Throwable.class);20        assertThat(actualRootCause).hasRootCauseMessage("root cause message");21        assertThat(actualRootCause).hasRootCauseMessageContaining("root cause");22        assertThat(actualRootCause).hasRootCauseMessageMatching("root cause.*");23        assertThat(actualRootCause).hasRootCauseMessageStartingWith("root cause");24        assertThat(actualRootCause).hasRootCauseMessageEndingWith("message");25        assertThat(actualRootCause).hasRootCauseMessageNull();26        assertThat(actualRootCause).hasNoRootCause();27    }28}

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