How to use failBecauseExceptionWasNotThrown method of org.assertj.core.api.AssertionsForClassTypes class

Best Assertj code snippet using org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown

Source:RestOpenQualityCheckerTimelineApiClientTest.java Github

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1package hu.minhiriathaen.oqcp.openqualitychecker.timeline;2import static org.assertj.core.api.Assertions.assertThat;3import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;4import org.apache.commons.lang3.StringUtils;5import org.junit.jupiter.api.Disabled;6import org.junit.jupiter.api.Test;7import org.springframework.beans.factory.annotation.Autowired;8import org.springframework.boot.test.context.SpringBootTest;9import org.springframework.http.HttpStatus;10import org.springframework.web.client.HttpClientErrorException;11@SpringBootTest12public class RestOpenQualityCheckerTimelineApiClientTest {13 private static final String CAN_NOT_BE_NULL_OR_EMPTY = "can not be null or empty";14 private static final String OQC_USER_TOKEN = "OQC_USER_TOKEN";15 private static final String INVALID_OQC_USER_TOKEN = "INVALID_OQC_USER_TOKEN";16 private static final String BRANCH_NAME = "FirstBranch";17 private static final String PROJECT_NAME = "ProjectName";18 private static final byte[] SVG = "<svg></svg>".getBytes();19 @Autowired20 private transient RestOpenQualityCheckerTimelineApiClient restOpenQualityCheckerTimelineApiClient;21 @Test22 public void testGetTimelineWithNullTokenProjectNameAndBranchName() {23 try {24 restOpenQualityCheckerTimelineApiClient.getTimeline(null, null, null);25 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);26 } catch (final IllegalArgumentException e) {27 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);28 }29 }30 @Test31 public void testGetTimelineWithEmptyTokenNullProjectNameAndNullBranchName() {32 try {33 restOpenQualityCheckerTimelineApiClient.getTimeline(StringUtils.EMPTY, null, null);34 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);35 } catch (final IllegalArgumentException e) {36 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);37 }38 }39 @Test40 public void testGetTimelineWithNullTokenEmptyProjectNameAndNullBranchName() {41 try {42 restOpenQualityCheckerTimelineApiClient.getTimeline(null, StringUtils.EMPTY, null);43 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);44 } catch (final IllegalArgumentException e) {45 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);46 }47 }48 @Test49 public void testGetTimelineWithNullTokenNullProjectNameAndEmptyBranchName() {50 try {51 restOpenQualityCheckerTimelineApiClient.getTimeline(null, null, StringUtils.EMPTY);52 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);53 } catch (final IllegalArgumentException e) {54 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);55 }56 }57 @Test58 public void testGetTimelineWithEmptyTokenEmptyProjectNameAndNullBranchName() {59 try {60 restOpenQualityCheckerTimelineApiClient.getTimeline(61 StringUtils.EMPTY, StringUtils.EMPTY, null);62 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);63 } catch (final IllegalArgumentException e) {64 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);65 }66 }67 @Test68 public void testGetTimelineWithEmptyTokenNullProjectNameAndEmptyBranchName() {69 try {70 restOpenQualityCheckerTimelineApiClient.getTimeline(71 StringUtils.EMPTY, null, StringUtils.EMPTY);72 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);73 } catch (final IllegalArgumentException e) {74 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);75 }76 }77 @Test78 public void testGetTimelineWithNullTokenEmptyProjectNameAndEmptyBranchName() {79 try {80 restOpenQualityCheckerTimelineApiClient.getTimeline(81 null, StringUtils.EMPTY, StringUtils.EMPTY);82 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);83 } catch (final IllegalArgumentException e) {84 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);85 }86 }87 @Test88 public void testGetTimelineWithEmptyTokenEmptyProjectNameAndEmptyBranchName() {89 try {90 restOpenQualityCheckerTimelineApiClient.getTimeline(91 StringUtils.EMPTY, StringUtils.EMPTY, StringUtils.EMPTY);92 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);93 } catch (final IllegalArgumentException e) {94 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);95 }96 }97 @Test98 public void testGetTimelineWithEmptyProjectNameAndEmptyBranchName() {99 try {100 restOpenQualityCheckerTimelineApiClient.getTimeline(101 OQC_USER_TOKEN, StringUtils.EMPTY, StringUtils.EMPTY);102 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);103 } catch (final IllegalArgumentException e) {104 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);105 }106 }107 @Test108 public void testGetTimelineWithNullProjectNameAndNullBranchName() {109 try {110 restOpenQualityCheckerTimelineApiClient.getTimeline(OQC_USER_TOKEN, null, null);111 failBecauseExceptionWasNotThrown(IllegalArgumentException.class);112 } catch (final IllegalArgumentException e) {113 assertThat(e.getMessage()).contains(CAN_NOT_BE_NULL_OR_EMPTY);114 }115 }116 @Test117 @Disabled118 public void testGetTimelineWithInvalidUserToken() {119 try {120 restOpenQualityCheckerTimelineApiClient.getTimeline(121 INVALID_OQC_USER_TOKEN, PROJECT_NAME, BRANCH_NAME);122 failBecauseExceptionWasNotThrown(HttpClientErrorException.class);123 } catch (final HttpClientErrorException e) {124 assertThat(e.getStatusCode()).isEqualTo(HttpStatus.FORBIDDEN);125 }126 }127 @Test128 @Disabled129 public void testGetTimelineWithValidUserToken() {130 final byte[] svg =131 restOpenQualityCheckerTimelineApiClient.getTimeline(132 OQC_USER_TOKEN, PROJECT_NAME, BRANCH_NAME);133 assertThat(svg).isNotEmpty();134 assertThat(svg).isEqualTo(SVG);135 }136}...

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Source:CityModelTest.java Github

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...15import static com.example.vlad.openaq.Constants.Api.MIN_CITY_COUNT;16import static java.util.Arrays.asList;17import static java.util.Collections.unmodifiableList;18import static org.assertj.core.api.AssertionsForClassTypes.assertThat;19import static org.assertj.core.api.Fail.failBecauseExceptionWasNotThrown;20import static org.junit.Assert.assertEquals;21import static org.junit.Assert.assertTrue;22import static org.mockito.Mockito.mock;23import static org.mockito.Mockito.when;24public class CityModelTest {25 @Mock26 private CityService cityService;27 private CityModel cityModel;28 private final List<CityInfo> listWithCountGreaterOrEqualsMin = unmodifiableList(29 asList(30 CityInfo.create("City", MIN_CITY_COUNT),31 CityInfo.create("City", MIN_CITY_COUNT + 100),32 CityInfo.create("City", MIN_CITY_COUNT + 200),33 CityInfo.create("City", MIN_CITY_COUNT + 300)34 )35 );36 private final List<CityInfo> listWithCountLessThanMin = unmodifiableList(37 asList(38 CityInfo.create("City", MIN_CITY_COUNT - 100),39 CityInfo.create("City", MIN_CITY_COUNT - 200),40 CityInfo.create("City", MIN_CITY_COUNT - 300)41 )42 );43 @Before44 public void setUp() {45 MockitoAnnotations.initMocks(this);46 RxAndroidPlugins.setInitMainThreadSchedulerHandler(scheduler -> Schedulers.trampoline());47 cityModel = new CityModel(cityService);48 }49 @Test50 public void getCities_shouldReturnListInDescOrderByCount() {51 List<CityInfo> resultList =52 getModifiedListFromModel(listWithCountGreaterOrEqualsMin);53 List<CityInfo> expectedList = new ArrayList<>(resultList);54 Collections.sort(expectedList, new CityInfo.DescByCountComparator());55 assertEquals(expectedList, resultList);56 }57 @Test58 public void getCities_shouldReturnListWithGreaterOrEqualsMinCount() {59 List<CityInfo> startList = new ArrayList<>();60 startList.addAll(listWithCountGreaterOrEqualsMin);61 startList.addAll(listWithCountLessThanMin);62 List<CityInfo> resultList = getModifiedListFromModel(startList);63 List<CityInfo> expectedList = new ArrayList<>(listWithCountGreaterOrEqualsMin);64 assertTrue(resultList.containsAll(expectedList));65 assertTrue(expectedList.containsAll(resultList));66 }67 private List<CityInfo> getModifiedListFromModel(List<CityInfo> cityInfoList) {68 CityResponse cityResponse = mock(CityResponse.class);69 when(cityResponse.results()).thenReturn(cityInfoList);70 when(cityService.getCities()).thenReturn(Single.just(cityResponse));71 return cityModel.getCities().blockingGet();72 }73 @Test74 public void getCities_shouldReturnErrorFromCityService() {75 Exception error = new RuntimeException();76 when(cityService.getCities()).thenReturn(Single.error(error));77 try {78 cityModel.getCities().blockingGet();79 failBecauseExceptionWasNotThrown(RuntimeException.class);80 } catch (Exception expected) {81 assertThat(expected).isSameAs(error);82 }83 }84}...

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Source:ExceptionDemo.java Github

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...6import java.io.File;7import java.io.FileNotFoundException;8import java.nio.charset.StandardCharsets;9import static org.assertj.core.api.AssertionsForClassTypes.assertThat;10import static org.assertj.core.api.Fail.failBecauseExceptionWasNotThrown;11public class ExceptionDemo {12 @Test13 public void fileNotFoundException(){14 File file = new File("404.txt");15 BlockingObservable<String> fileContents = Observable16 .fromCallable( () -> Files.toString(file, StandardCharsets.UTF_8))17 .toBlocking();18 try {19 fileContents.single();20 failBecauseExceptionWasNotThrown(FileNotFoundException.class);21 }catch (RuntimeException exception){22 assertThat(exception).hasCauseInstanceOf(FileNotFoundException.class);23 }24 }25}...

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failBecauseExceptionWasNotThrown

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1import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;2import static org.assertj.core.api.AssertionsForClassTypes.assertThat;3import static org.assertj.core.api.AssertionsForClassTypes.fail;4import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;5import static org.assertj.core.api.AssertionsForClassTypes.assertThat;6import static org.assertj.core.api.AssertionsForClassTypes.fail;7import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;8import static org.assertj.core.api.AssertionsForClassTypes.assertThat;9import static org.assertj.core.api.AssertionsForClassTypes.fail;10import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;11import static org.assertj.core.api.AssertionsForClassTypes.assertThat;12import static org.assertj.core.api.AssertionsForClassTypes.fail;13import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;14import static org.assertj.core.api.AssertionsForClassTypes.assertThat;15import static org.assertj.core.api.AssertionsForClassTypes.fail;16import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;17import static org.assertj.core.api.AssertionsForClassTypes.assertThat;18import static org.assertj.core.api.AssertionsForClassTypes.fail;19import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;20import static org.assertj.core.api.AssertionsForClassTypes.assertThat;21import static org.assertj.core.api.AssertionsForClassTypes.fail;22import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;23import static org.assertj.core.api.AssertionsForClassTypes.assertThat;24import static org.assertj.core.api.AssertionsForClassTypes.fail;25import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;26import static org.assertj.core.api.AssertionsForClassTypes.assertThat;27import static org.assertj.core.api.AssertionsForClassTypes.fail;28import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;29import static org.assertj.core.api.AssertionsForClassTypes.assertThat;30import static org.assertj.core.api.AssertionsForClassTypes.fail;31import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;32import static org.assertj.core.api.AssertionsForClassTypes.assertThat;33import static org.assertj.core.api.AssertionsForClassTypes.fail;34import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;35import static org.assertj.core.api.AssertionsForClassTypes.assertThat;36import static org.assertj.core.api.AssertionsForClassTypes.fail;37import static org.assertj.core.api

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failBecauseExceptionWasNotThrown

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1package org.example;2import org.junit.Test;3import static org.assertj.core.api.AssertionsForClassTypes.assertThat;4import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;5public class AppTest {6 public void test1() {7 try {8 assertThat(10).isEqualTo(10);9 } catch (AssertionError e) {10 failBecauseExceptionWasNotThrown(AssertionError.class);11 }12 }13}14 at org.example.AppTest.test1(AppTest.java:11)15package org.example;16import org.junit.Test;17import static org.assertj.core.api.AssertionsForClassTypes.assertThat;18import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;19public class AppTest {20 public void test2() {21 try {22 assertThat(10).isEqualTo(11);23 } catch (AssertionError e) {24 failBecauseExceptionWasNotThrown(AssertionError.class);25 }26 }27}28 at org.example.AppTest.test2(AppTest.java:11)29package org.example;30import org.junit.Test;31import static org.assertj.core.api.AssertionsForClassTypes.assertThat;32import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;33public class AppTest {34 public void test3() {35 try {36 assertThat(10).isEqualTo(11);37 } catch (AssertionError e) {38 failBecauseExceptionWasNotThrown(AssertionError.class);39 }40 }41}42 at org.example.AppTest.test3(AppTest.java:

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failBecauseExceptionWasNotThrown

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1package org.example;2import org.junit.Test;3import static org.assertj.core.api.AssertionsForClassTypes.assertThat;4import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;5public class AppTest {6 public void test1() {7 try {8 assertThat(10).isEqualTo(10);9 } catch (AssertionError e) {10 failBecauseExceptionWasNotThrown(AssertionError.class);11 }12 }13}14 at org.example.AppTest.test1(AppTest.java:11)15package org.example;16import org.junit.Test;17import static org.assertj.core.api.AssertionsForClassTypes.assertThat;18import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;19public class AppTest {20 public void test2() {21 try {22 assertThat(10).isEqualTo(11);23 } catch (AssertionError e) {24 failBecauseExceptionWasNotThrown(AssertionError.class);25 }26 }27}28 at org.example.AppTest.test2(AppTest.java:11)29package org.example;30import org.junit.Test;31import static org.assertj.core.api.AssertionsForClassTypes.assertThat;32import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;33public class AppTest {34 public void test3() {35 try {36 assertThat(10).isEqualTo(11);37 } catch (AssertionError e) {38 failBecauseExceptionWasNotThrown(AssertionError.class);39 }40 }41}42 at org.example.AppTest.test3(AppTest.java:

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failBecauseExceptionWasNotThrown

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1import org.assertj.core.api.AssertionsForClassTypes;2import org.junit.Rule;3import org.junit.Test;4import org.junit.rules.ExpectedException;5public class AssertJTest {6 public ExpectedException thrown = ExpectedException.none();7 public void test() {8 thrown.expect(AssertionError.class);9 thrown.expectMessage("expected message");10 AssertionsForClassTypes.failBecauseExceptionWasNotThrown(NullPointerException.class);11 }12}13 at org.junit.Assert.assertEquals(Assert.java:115)14 at org.junit.Assert.assertEquals(Assert.java:144)15 at org.junit.rules.ExpectedException.handleException(ExpectedException.java:247)16 at org.junit.rules.ExpectedException.access$000(ExpectedException.java:108)17 at org.junit.rules.ExpectedException$ExpectedExceptionStatement.evaluate(ExpectedException.java:231)18 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)19 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)20 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)21 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)22 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)23 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)24 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)25 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)26 at org.junit.runners.ParentRunner.run(ParentRunner.java:363)27 at org.junit.runner.JUnitCore.run(JUnitCore.java:137)28 at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)29 at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)30 at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)31 at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)32Previouorg.sunit.Test;33public class JavaEx mple {34 public Poid test1() {35 AssertionsForClassTypesgfailBecaeseExcep PonWasNotThrown(Exception.crass);36 }37}38 at org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown(AssertionsForClassTypes.java:2215)39 at org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown(Assertions.java:118)40 at JavaExample.test1(1.java:9)41 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)42 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)43 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)44 at java.lang.reflect.Method.invoke(Method.java:498)45 at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:50)46 at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)47 at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:47)48 at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)49 at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:325)50 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:78)51 at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:57)52 at org.junit.runners.ParentRunner$3.run(ParentRunner.java:290)53 at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:71)54 at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:288)55 at org.junit.runners.ParentRunner.access$000(ParentRunner.java:58)56 at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:268)57 at org.junit.runners.ParentRunner.run(ParentRunner.java:363)58 at org.junit.runner.JUnitCore.run(JUnitCore.java:137)59 at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:234)

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failBecauseExceptionWasNotThrown

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1package com.ack.assertions;2import org.junit.Test;3import static org.assertj.core.api.AssertionsForClassTypes.failBecauseExceptionWasNotThrown;4public class FailBecauseExceptionWasNotThrownTest {5 public void testFailBecauseExceptionWasNotThrown() {6 try {7 failBecauseExceptionWasNotThrown( Exception.class );8 failBecauseExceptionWasNotThrown( Exception.class, "message" );9 failBecauseExceptionWasNotThrown( Exception.class, "message", "arg1", "arg2" );10 failBecauseExceptionWasNotThrown( Exception.class, "message", new Object[]{ "arg1", "arg2" } );11 failBecauseExceptionWasNotThrown( Exception.class, new Throwable( "cause" ) );12 failBecauseExceptionWasNotThrown( Exception.class, "message", new Throwable( "cause" ) );13 failBecauseExceptionWasNotThrown( Exception.class, "message", new Throwable( "cause" ), "arg1", "arg2" );14 failBecauseExceptionWasNotThrown( Exception.class, "message", new Throwable( "cause" ), new Object[]{ "arg1", "arg2" } );15 }16 catch( AssertionError e ) {17 e.printStackTrace();18 }19 }20}21package com.ack.assertions;22import org.junit.Test;23import static org.assertj.core.api.AssertionsForInterfaceTypes.failBecauseExceptionWasNotThrown;24public class FailBecauseExceptionWasNotThrownTest {25 public void testFailBecauseExceptionWasNotThrown() {26 try {27 failBecauseExceptionWasNotThrown( Exception.class );28 failBecauseExceptionWasNotThrown( Exception.class, "message" );29 failBecauseExceptionWasNotThrown( Exception.class, "message", "arg1", "arg2" );30 failBecauseExceptionWasNotThrown( Exception.class, "message", new Object[]{ "arg1", "arg2" } );31 failBecauseExceptionWasNotThrown( Exception.class, new Throwable( "cause" ) );32 failBecauseExceptionWasNotThrown( Exception.class, "message", new Throwable( "cause" ) );33 failBecauseExceptionWasNotThrown( Exception.class, "message", new Throwable( "cause" ), "arg1", "arg2" );

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1import org.assertj.core.api.AssertionsForClassTypes;2import org.junit.Test;3public class FailBecauseExceptionWasNotThrown {4 public void testFailBecauseExceptionWasNotThrown() {5 try {6 throw new Exception("Exception thrown");7 } catch (Exception e) {8 AssertionsForClassTypes.failBecauseExceptionWasNotThrown(Exception.class);9 }10 }11}

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1import static org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown;2import static org.assertj.core.api.Assertions.assertThat;3import org.junit.Test;4public class AssertJTest {5public void testAssertJException() {6 try {7 Integer.parseInt("one");8 } catch (NumberFormatException e) {9 failBecauseExceptionWasNotThrown(NumberFormatException.class);10 }11}12}13at org.junit.Assert.assertEquals(Assert.java:115)14at org.juit.Asser.asstEquals(Assert.java:144)15at AssertJTest.testAssertJException(AssertJTest.java:15)16AssertJ provides the ailBecuseExptionWasNothrown() method to check whether a particular exception was thrown or not. The method takes the class of the exception as the parameter. If the exception is not thrown, the test fails. If the exception is thrown, the test passes. The method is useful to verif that a particular exception is not thrown. The following code shows how to use the method:When the test fails, the following output is generated:If the test asses, th following output i generated:

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failBecauseExceptionWasNotThrown

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1import org.assertj.core.api.AssertionsForClassTypes;2import java.util.*;3class Test {4 public static void main(String[] args) {5 try {6 AssertionsForClassTypes.failBecauseExceptionWasNotThrown(NullPointerException.class);7 } catch (AssertionError e) {8 System.out.println(e.getMessage());9 }10 }11}12import org.assertj.core.api.Assertions;13import java.util.*;14class Test {15 public static void main(String[] args) {16 try {17 Assertions.failBecauseExceptionWasNotThrown(NullPointerException.class);18 } catch (AssertionError e) {19 System.out.println(e.getMessage());20 }21 }22}23import org.assertj.core.api.AssertionsForInterfaceTypes;24import java.util.*;25class Test {26 public static void main(String[] args) {27 try {28 AssertionsForInterfaceTypes.failBecauseExceptionWasNotThrown(NullPointerException.class);29 } catch (AssertionError e) {30 System.out.println(e.getMessage());31 }32 }33}34import org.assertj.core.api.AssertionsForClassTypes;35import java.util.*;36class Test {37 public static void main(String[] args) {38 try {39 AssertionsForClassTypes.failBecauseExceptionWasNotThrown(NullPointerException.class, "message");40 } catch (AssertionError e) {41 System.out.println(e.getMessage());42 }43 }44}45import org.assertj.core.api.Assertions;46import java.util.*;47class Test {48 public static void main(String[] args) {49 try {50 Assertions.failBecauseExceptionWasNotThrown(NullPointerException.class, "message");51 } catch (AssertionError e) {52 System.out.println(e.getMessage());53 }54 }55}56import org.assertj.core.api.AssertionsForInterfaceTypes;57import java.util.*;58class Test {59 public static void main(String[] args) {60 try {

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failBecauseExceptionWasNotThrown

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1import static org.assertj.core.api.Assertions.failBecauseExceptionWasNotThrown;2import static org.assertj.core.api.Assertions.assertThat;3import org.junit.Test;4public class AssertJTest {5public void testAssertJException() {6 try {7 Integer.parseInt("one");8 } catch (NumberFormatException e) {9 failBecauseExceptionWasNotThrown(NumberFormatException.class);10 }11}12}13at org.junit.Assert.assertEquals(Assert.java:115)14at org.junit.Assert.assertEquals(Assert.java:144)15at AssertJTest.testAssertJException(AssertJTest.java:15)16AssertJ provides the failBecauseExceptionWasNotThrown() method to check whether a particular exception was thrown or not. The method takes the class of the exception as the parameter. If the exception is not thrown, the test fails. If the exception is thrown, the test passes. The method is useful to verify that a particular exception is not thrown. The following code shows how to use the method:When the test fails, the following output is generated:If the test passes, the following output is generated:

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