How to use throwAssertionError method of org.assertj.core.api.AbstractAssert class

Best Assertj code snippet using org.assertj.core.api.AbstractAssert.throwAssertionError

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...31 public ResultAssertion( Result<S, F> actual ) {32 super( actual, ResultAssertion.class );33 }34 public ResultAssertion<S, F> isSuccess() {35 if( !actual.isSuccess() ) throwAssertionError( shouldBeSuccess( actual ) );36 return myself;37 }38 public ResultAssertion<S, F> isFailure() {39 if( actual.isSuccess() ) throwAssertionError( shouldBeFailure( actual ) );40 return myself;41 }42 public static final class ResultShouldBeSuccess extends BasicErrorMessageFactory {43 private ResultShouldBeSuccess( Class<?> resultClass, Object resultFailureValue ) {44 super( "%nExpecting success " + resultClass.getSimpleName() + " but was containing failure: <%s>.", resultFailureValue );45 }46 public static <S, F> ResultShouldBeSuccess shouldBeSuccess( Result<S, F> result ) {47 return new ResultShouldBeSuccess( result.getClass(), result.failureValue );48 }49 }50 public static final class ResultShouldBeFailure extends BasicErrorMessageFactory {51 private ResultShouldBeFailure( Class<?> resultClass, Object resultSuccessValue ) {52 super( "%nExpecting failure " + resultClass.getSimpleName() + " but was containing success: <%s>.", resultSuccessValue );53 }...

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...36 public OutputAssert hasSingleLineContaining(String contents) {37 List<String> lines = this.actual.lines();38 List<String> matchingLines = lines.stream().filter((line) -> line.contains(contents)).toList();39 if (matchingLines.size() != 1) {40 throwAssertionError(41 new BasicErrorMessageFactory("%nExpected %s to have a single line that contains '%s' but found %s",42 lines, contents, matchingLines.size()));43 }44 return this;45 }46 /​**47 * Asserts that the output has a line matching the given contents.48 * @param contents contents to match49 * @return {@code this} for fluent API50 */​51 public OutputAssert hasLineContaining(String contents) {52 List<String> lines = this.actual.lines();53 Optional<String> matchingLines = lines.stream().filter((line) -> line.contains(contents)).findAny();54 if (matchingLines.isEmpty()) {55 throwAssertionError(new BasicErrorMessageFactory(56 "%nExpected %s to have a line that contains '%s' but found none", lines, contents));57 }58 return this;59 }60 /​**61 * Asserts that the output doesn't have a line matching the given contents.62 * @param contents contents to match63 * @return {@code this} for fluent API64 */​65 public OutputAssert hasNoLinesContaining(String contents) {66 List<String> lines = this.actual.lines();67 boolean noMatch = lines.stream().noneMatch((line) -> line.contains(contents));68 if (!noMatch) {69 throwAssertionError(new BasicErrorMessageFactory(70 "%nExpected %s to have no lines that contain '%s' but found some", lines, contents));71 }72 return this;73 }74}...

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...12 return new CountDownLatchAssertions(actual);13 }14 public CountDownLatchAssertions isDownBefore(int timeout, TimeUnit timeUnit) {15 boolean await = waitFor(timeout, timeUnit);16 if (!await) throwAssertionError(new ShouldBeDownBefore(timeout, timeUnit));17 return this;18 }19 public CountDownLatchAssertions isUpAfter(int timeout, TimeUnit timeUnit) {20 boolean await = waitFor(timeout, timeUnit);21 if (await) throwAssertionError(new ShouldBeUpAfter(timeout, timeUnit));22 return this;23 }24 private boolean waitFor(int timeout, TimeUnit timeUnit) {25 boolean await = false;26 try {27 await = actual.await(timeout, timeUnit);28 } catch (InterruptedException e) {29 Thread.currentThread().interrupt();30 fail("Test has been interrupted");31 }32 return await;33 }34 private static class ShouldBeDownBefore extends BasicErrorMessageFactory {35 ShouldBeDownBefore(int timeout, TimeUnit timeUnit) {...

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throwAssertionError

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1import static org.assertj.core.api.Assertions.*;2import org.assertj.core.api.AbstractAssert;3public class ThrowAssertionError {4 public static void main(String[] args) {5 AbstractAssert<?, ?> abstractAssert = null;6 abstractAssert.throwAssertionError("Error");7 }8}9 at org.assertj.core.api.AbstractAssert.throwAssertionError(AbstractAssert.java:134)10 at ThrowAssertionError.main(1.java:9)

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throwAssertionError

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1import static org.assertj.core.api.Assertions.*;2public class AssertJAssert {3 public static void main(String[] args) {4 assertThat(1).isEqualTo(2);5 }6}

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throwAssertionError

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1import org.assertj.core.api.AbstractAssert;2{3 public static void main(String[] args) 4 {5 AbstractAssert<?, ?> abstractAssert = new AbstractAssert<>(null, null)6 {7 protected Object invoke(String methodName, Object... args)8 {9 return null;10 }11 };12 abstractAssert.throwAssertionError("Assertion failed");13 }14}15Recommended Posts: How to use org.assertj.core.api.Assertions.assertThat() method in Java?16How to use org.assertj.core.api.Assertions.assertThatCode() method in Java?17How to use org.assertj.core.api.Assertions.assertThatThrownBy() method in Java?18How to use org.assertj.core.api.Assertions.catchThrowable() method in Java?19How to use org.assertj.core.api.Assertions.assertThatExceptionOfType() method in Java?20How to use org.assertj.core.api.Assertions.assertThatNullPointerException() method in Java?21How to use org.assertj.core.api.Assertions.assertThatIllegalArgumentException() method in Java?22How to use org.assertj.core.api.Assertions.assertThatIllegalStateException() method in Java?23How to use org.assertj.core.api.Assertions.assertThatNoException() method in Java?24How to use org.assertj.core.api.Assertions.assertThatAssertionError() method in Java?25How to use org.assertj.core.api.Assertions.assertThatIOException() method in Java?

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throwAssertionError

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1package com.automationrhapsody.junit5;2import static org.assertj.core.api.Assertions.assertThat;3import static org.assertj.core.api.Assertions.assertThatThrownBy;4import org.junit.jupiter.api.Test;5public class JUnit5AssertJTest {6 public void testThrowAssertionError() {7 assertThatThrownBy(() -> {8 throwAssertionError();9 }).isInstanceOf(AssertionError.class);10 }11 private void throwAssertionError() {12 assertThat(true).isFalse();13 }14}15package com.automationrhapsody.junit5;16import static org.assertj.core.api.Assertions.assertThat;17import static org.assertj.core.api.Assertions.fail;18import org.junit.jupiter.api.Test;19public class JUnit5AssertJTest {20 public void testFail() {21 try {22 fail("This test will fail");23 } catch (AssertionError e) {24 assertThat(e.getMessage()).isEqualTo("This test will fail");25 }26 }27}28package com.automationrhapsody.junit5;29import static org.assertj.core.api.Assertions.assertThat;30import static org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown;31import org.junit.jupiter.api.Test;32public class JUnit5AssertJTest {33 public void testFailBecauseExceptionWasNotThrown() {34 try {35 failBecauseExceptionWasNotThrown(NullPointerException.class);36 } catch (AssertionError e) {37 assertThat(e.getMessage()).isEqualTo("Expecting exception:");38 }39 }40}41package com.automationrhapsody.junit5;42import static org.assertj.core.api.Assertions.assertThat;43import static org.assertj.core.api.Assertions.failBecauseExpectedAssertionErrorWasNotThrown;44import org.junit.jupiter.api.Test;45public class JUnit5AssertJTest {

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throwAssertionError

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1import org.assertj.core.api.AbstractAssert;2import org.assertj.core.api.Assertions;3import org.junit.Test;4public class AssertJTest {5 public void testAssertJ() {6 Assertions.assertThat(true).isTrue();7 Assertions.assertThat(false).isFalse();8 Assertions.assertThat("Hello World").startsWith("Hello");9 Assertions.assertThat(1).isBetween(1, 2);10 Assertions.assertThat(1).isIn(1, 2);11 Assertions.assertThat(1).isLessThan(2);12 Assertions.assertThat(1).isGreaterThan(0);13 Assertions.assertThat(1).isNotEqualTo(2);14 Assertions.assertThat(1).isNotIn(2, 3);15 Assertions.assertThat(1).isNotSameAs(2);16 Assertions.assertThat(1).isNotNull();17 Assertions.assertThat(1).isSameAs(1);18 Assertions.assertThat(1).isCloseTo(0, 2);19 Assertions.assertThat(1).isCloseTo(0, 1);20 Assertions.assertThat(1).isCloseTo(0, 0);21 Assertions.assertThat(1).isBetween(0, 2);22 Assertions.assertThat(1).isIn(0, 2);23 Assertions.assertThat(1).isLessThan(3);24 Assertions.assertThat(1).isGreaterThan(-1);25 Assertions.assertThat(1).isNotEqualTo(3);26 Assertions.assertThat(1).isNotIn(3, 4);27 Assertions.assertThat(1).isNotSameAs(3);28 Assertions.assertThat(1).isNotNull();29 Assertions.assertThat(1).isSameAs(1);30 Assertions.assertThat(1).isCloseTo(0, 3);31 Assertions.assertThat(1).isCloseTo(0, 2);32 Assertions.assertThat(1).isCloseTo(0, 1);

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throwAssertionError

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1import org.assertj.core.api.AbstractAssert;2class 1 extends AbstractAssert<1, String> {3 public 1(String actual) {4 super(actual, 1.class);5 }6 public static 1 assertThat(String actual) {7 return new 1(actual);8 }9 public 1 hasLength(int expected) {10 isNotNull();11 if (actual.length() != expected) {12 throwAssertionError("Expected length of <%s> to be <%s> but was <%s>",13 actual, expected, actual.length());14 }15 return this;16 }17}18import org.assertj.core.api.Assertions;19class 2 {20 public static void main(String[] args) {21 Assertions.assertThat("abc").hasLength(3);22 }23}24import org.assertj.core.api.Assertions;25class 3 {26 public static void main(String[] args) {27 Assertions.assertThat("abc").hasLength(4);28 }29}30import org.assertj.core.api.Assertions;31class 4 {32 public static void main(String[] args) {33 Assertions.assertThat("abc").hasLength(3);34 }35}36import org.assertj.core.api.Assertions;37class 5 {38 public static void main(String[] args) {39 Assertions.assertThat("abc").hasLength(4);40 }41}42import org.assertj.core.api.Assertions;43class 6 {44 public static void main(String[] args) {45 Assertions.assertThat("abc").hasLength(3);46 }47}48import org.assertj.core.api.Assertions;49class 7 {50 public static void main(String[] args) {51 Assertions.assertThat("abc").hasLength(4);52 }53}54import org.assertj.core.api.Assertions;55class 8 {56 public static void main(String[] args) {57 Assertions.assertThat("abc").hasLength(3

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throwAssertionError

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1public class AssertJThrowAssertionError {2 public static void main(String[] args) {3 assertThat(true).isTrue().throwAssertionError("Assertion Error");4 }5}6 at org.assertj.core.api.AbstractBooleanAssert.throwAssertionError(AbstractBooleanAssert.java:102)7 at AssertJThrowAssertionError.main(AssertJThrowAssertionError.java:5)

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throwAssertionError

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1import org.assertj.core.api.AbstractAssert;2import org.assertj.core.api.Assertions;3import org.assertj.core.api.ListAssert;4import org.assertj.core.api.ListAssertBaseTest;5import org.assertj.core.api.StringAssert;6import org.assertj.core.api.ThrowableAssert;7import org.assertj.core.internal.Objects;8import org.junit.Test;9public class AssertJDemo {10 public void testAssertJ() {11 Assertions.assertThat("abc").isNotNull();12 }13}

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throwAssertionError

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1import org.assertj.core.api.AbstractAssert;2public class AssertJAssertionErrorTest {3 public static void main(String[] args) {4 String name = "AssertJ";5 AbstractAssert.throwAssertionError("Assertion error message");6 }7}

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