How to use Annotation Type After class of org.junit package

Best junit code snippet using org.junit.Annotation Type After

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1package org.junit.runners.parameterized;2import java.lang.annotation.Annotation;3import java.lang.reflect.Field;4import java.util.List;5import org.junit.internal.runners.statements.RunAfters;6import org.junit.internal.runners.statements.RunBefores;7import org.junit.runner.RunWith;8import org.junit.runner.notification.RunNotifier;9import org.junit.runners.BlockJUnit4ClassRunner;10import org.junit.runners.Parameterized;11import org.junit.runners.Parameterized.Parameter;12import org.junit.runners.model.FrameworkField;13import org.junit.runners.model.FrameworkMethod;14import org.junit.runners.model.InitializationError;15import org.junit.runners.model.Statement;16/​**17 * A {@link BlockJUnit4ClassRunner} with parameters support. Parameters can be18 * injected via constructor or into annotated fields.19 */​20public class BlockJUnit4ClassRunnerWithParameters extends21 BlockJUnit4ClassRunner {22 private enum InjectionType {23 CONSTRUCTOR, FIELD24 }25 private final Object[] parameters;26 private final String name;27 public BlockJUnit4ClassRunnerWithParameters(TestWithParameters test)28 throws InitializationError {29 super(test.getTestClass());30 parameters = test.getParameters().toArray(31 new Object[test.getParameters().size()]);32 name = test.getName();33 }34 @Override35 public Object createTest() throws Exception {36 InjectionType injectionType = getInjectionType();37 switch (injectionType) {38 case CONSTRUCTOR:39 return createTestUsingConstructorInjection();40 case FIELD:41 return createTestUsingFieldInjection();42 default:43 throw new IllegalStateException("The injection type "44 + injectionType + " is not supported.");45 }46 }47 private Object createTestUsingConstructorInjection() throws Exception {48 return getTestClass().getOnlyConstructor().newInstance(parameters);49 }50 private Object createTestUsingFieldInjection() throws Exception {51 List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();52 if (annotatedFieldsByParameter.size() != parameters.length) {53 throw new Exception(54 "Wrong number of parameters and @Parameter fields."55 + " @Parameter fields counted: "56 + annotatedFieldsByParameter.size()57 + ", available parameters: " + parameters.length58 + ".");59 }60 Object testClassInstance = getTestClass().getJavaClass().newInstance();61 for (FrameworkField each : annotatedFieldsByParameter) {62 Field field = each.getField();63 Parameter annotation = field.getAnnotation(Parameter.class);64 int index = annotation.value();65 try {66 field.set(testClassInstance, parameters[index]);67 } catch (IllegalAccessException e) {68 IllegalAccessException wrappedException = new IllegalAccessException(69 "Cannot set parameter '" + field.getName()70 + "'. Ensure that the field '" + field.getName()71 + "' is public.");72 wrappedException.initCause(e);73 throw wrappedException;74 } catch (IllegalArgumentException iare) {75 throw new Exception(getTestClass().getName()76 + ": Trying to set " + field.getName()77 + " with the value " + parameters[index]78 + " that is not the right type ("79 + parameters[index].getClass().getSimpleName()80 + " instead of " + field.getType().getSimpleName()81 + ").", iare);82 }83 }84 return testClassInstance;85 }86 @Override87 protected String getName() {88 return name;89 }90 @Override91 protected String testName(FrameworkMethod method) {92 return method.getName() + getName();93 }94 @Override95 protected void validateConstructor(List<Throwable> errors) {96 validateOnlyOneConstructor(errors);97 if (getInjectionType() != InjectionType.CONSTRUCTOR) {98 validateZeroArgConstructor(errors);99 }100 }101 @Override102 protected void validateFields(List<Throwable> errors) {103 super.validateFields(errors);104 if (getInjectionType() == InjectionType.FIELD) {105 List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();106 int[] usedIndices = new int[annotatedFieldsByParameter.size()];107 for (FrameworkField each : annotatedFieldsByParameter) {108 int index = each.getField().getAnnotation(Parameter.class)109 .value();110 if (index < 0 || index > annotatedFieldsByParameter.size() - 1) {111 errors.add(new Exception("Invalid @Parameter value: "112 + index + ". @Parameter fields counted: "113 + annotatedFieldsByParameter.size()114 + ". Please use an index between 0 and "115 + (annotatedFieldsByParameter.size() - 1) + "."));116 } else {117 usedIndices[index]++;118 }119 }120 for (int index = 0; index < usedIndices.length; index++) {121 int numberOfUse = usedIndices[index];122 if (numberOfUse == 0) {123 errors.add(new Exception("@Parameter(" + index124 + ") is never used."));125 } else if (numberOfUse > 1) {126 errors.add(new Exception("@Parameter(" + index127 + ") is used more than once (" + numberOfUse + ")."));128 }129 }130 }131 }132 @Override133 protected Statement classBlock(RunNotifier notifier) {134 Statement statement = childrenInvoker(notifier);135 statement = withBeforeParams(statement);136 statement = withAfterParams(statement);137 return statement;138 }139 private Statement withBeforeParams(Statement statement) {140 List<FrameworkMethod> befores = getTestClass()141 .getAnnotatedMethods(Parameterized.BeforeParam.class);142 return befores.isEmpty() ? statement : new RunBeforeParams(statement, befores);143 }144 private class RunBeforeParams extends RunBefores {145 RunBeforeParams(Statement next, List<FrameworkMethod> befores) {146 super(next, befores, null);147 }148 @Override149 protected void invokeMethod(FrameworkMethod method) throws Throwable {150 int paramCount = method.getMethod().getParameterTypes().length;151 method.invokeExplosively(null, paramCount == 0 ? (Object[]) null : parameters);152 }153 }154 private Statement withAfterParams(Statement statement) {155 List<FrameworkMethod> afters = getTestClass()156 .getAnnotatedMethods(Parameterized.AfterParam.class);157 return afters.isEmpty() ? statement : new RunAfterParams(statement, afters);158 }159 private class RunAfterParams extends RunAfters {160 RunAfterParams(Statement next, List<FrameworkMethod> afters) {161 super(next, afters, null);162 }163 @Override164 protected void invokeMethod(FrameworkMethod method) throws Throwable {165 int paramCount = method.getMethod().getParameterTypes().length;166 method.invokeExplosively(null, paramCount == 0 ? (Object[]) null : parameters);167 }168 }169 @Override170 protected Annotation[] getRunnerAnnotations() {171 Annotation[] allAnnotations = super.getRunnerAnnotations();172 Annotation[] annotationsWithoutRunWith = new Annotation[allAnnotations.length - 1];173 int i = 0;174 for (Annotation annotation: allAnnotations) {175 if (!annotation.annotationType().equals(RunWith.class)) {176 annotationsWithoutRunWith[i] = annotation;177 ++i;178 }179 }180 return annotationsWithoutRunWith;181 }182 private List<FrameworkField> getAnnotatedFieldsByParameter() {183 return getTestClass().getAnnotatedFields(Parameter.class);184 }185 private InjectionType getInjectionType() {186 if (fieldsAreAnnotated()) {187 return InjectionType.FIELD;188 } else {189 return InjectionType.CONSTRUCTOR;190 }191 }192 private boolean fieldsAreAnnotated() {193 return !getAnnotatedFieldsByParameter().isEmpty();194 }195}...

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1/​**2 *3 */​4package org.fastcode.common;5import static org.fastcode.util.FastCodeUtil.getFCAnnotationList;6import java.util.ArrayList;7import java.util.List;8import org.fastcode.common.FastCodeConstants.JUNIT_TYPE;9/​**10 * @author Gautam11 *12 */​13public class FastCodeMethodRegistry {14 public static FastCodeMethod[] getRegisteredUnitTestStubMethods(final JUNIT_TYPE type) {15 if (JUNIT_TYPE.JUNIT_TYPE_3.equals(type)) {16 final FastCodeMethod[] fastCodeMethods = new FastCodeMethod[3];17 final List<FastCodeAnnotation> annotations = new ArrayList<FastCodeAnnotation>();18 annotations.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.Override")));19 final List<FastCodeType> exception = new ArrayList<FastCodeType>();20 exception.add(new FastCodeType("java.lang.Exception"));21 fastCodeMethods[0] = new FastCodeMethod("setUp", null, exception, false, annotations, null, null);22 fastCodeMethods[1] = new FastCodeMethod("tearDown", null, exception, false, annotations, null, null);23 fastCodeMethods[2] = new FastCodeMethod("Constructor", null, null, false, null, null, null);24 return fastCodeMethods;25 }26 if (JUNIT_TYPE.JUNIT_TYPE_4.equals(type)) {27 final FastCodeMethod[] fastCodeMethods = new FastCodeMethod[4];28 /​*final List<FastCodeAnnotation> annotations = new ArrayList<FastCodeAnnotation>();29 annotations.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.BeforeClass")));*/​30 final List<FastCodeType> exception = new ArrayList<FastCodeType>();31 exception.add(new FastCodeType("java.lang.Exception"));32 fastCodeMethods[0] = new FastCodeMethod("setUpBeforeClass", null, exception, true,33 getFCAnnotationList("org.junit.BeforeClass"), null, null);34 /​*final List<FastCodeAnnotation> annotations1 = new ArrayList<FastCodeAnnotation>();35 annotations1.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.AfterClass")));*/​36 fastCodeMethods[1] = new FastCodeMethod("tearDownAfterClass", null, exception, true,37 getFCAnnotationList("org.junit.AfterClass"), null, null);38 /​*final List<FastCodeAnnotation> annotations2 = new ArrayList<FastCodeAnnotation>();39 annotations2.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.Before")));*/​40 fastCodeMethods[2] = new FastCodeMethod("setUp", null, exception, false, getFCAnnotationList("org.junit.Before"), null, null);41 /​*final List<FastCodeAnnotation> annotations3 = new ArrayList<FastCodeAnnotation>();42 annotations3.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.After")));*/​43 fastCodeMethods[3] = new FastCodeMethod("tearDown", null, exception, false, getFCAnnotationList("org.junit.After"), null, null);44 return fastCodeMethods;45 }46 if (JUNIT_TYPE.JUNIT_TYPE_TESTNG.equals(type)) {47 final FastCodeMethod[] fastCodeMethods = new FastCodeMethod[4];48 /​*final List<FastCodeAnnotation> annotations = new ArrayList<FastCodeAnnotation>();49 annotations.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.BeforeClass")));*/​50 fastCodeMethods[0] = new FastCodeMethod("setUpBeforeClass", null, null, false, getFCAnnotationList("org.junit.BeforeClass"),51 null, null);52 /​*final List<FastCodeAnnotation> annotations1 = new ArrayList<FastCodeAnnotation>();53 annotations1.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.AfterClass")));*/​54 fastCodeMethods[1] = new FastCodeMethod("tearDownAfterClass", null, null, false, getFCAnnotationList("org.junit.AfterClass"),55 null, null);56 /​* final List<FastCodeAnnotation> annotations2 = new ArrayList<FastCodeAnnotation>();57 annotations2.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.BeforeMethod")));*/​58 fastCodeMethods[2] = new FastCodeMethod("setUpBeforeMethod", null, null, false, getFCAnnotationList("org.junit.BeforeMethod"),59 null, null);60 /​*final List<FastCodeAnnotation> annotations3 = new ArrayList<FastCodeAnnotation>();61 annotations3.add(new FastCodeAnnotation(null, new FastCodeType("org.junit.AfterMethod")));*/​62 fastCodeMethods[3] = new FastCodeMethod("tearDownAfterMethod", null, null, false, getFCAnnotationList("org.junit.AfterMethod"),63 null, null);64 return fastCodeMethods;65 }66 return new FastCodeMethod[0];67 }68}...

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1/​*2 * Copyright 2015-2019 the original author or authors.3 *4 * All rights reserved. This program and the accompanying materials are5 * made available under the terms of the Eclipse Public License v2.0 which6 * accompanies this distribution and is available at7 *8 * https:/​/​www.eclipse.org/​legal/​epl-v20.html9 */​10package org.junit.jupiter.engine.descriptor;11import static org.junit.platform.commons.util.AnnotationUtils.findAnnotatedMethods;12import static org.junit.platform.commons.util.ReflectionUtils.returnsVoid;13import java.lang.annotation.Annotation;14import java.lang.reflect.Method;15import java.util.List;16import org.junit.jupiter.api.AfterAll;17import org.junit.jupiter.api.AfterEach;18import org.junit.jupiter.api.BeforeAll;19import org.junit.jupiter.api.BeforeEach;20import org.junit.platform.commons.JUnitException;21import org.junit.platform.commons.util.ReflectionUtils;22import org.junit.platform.commons.util.ReflectionUtils.HierarchyTraversalMode;23/​**24 * Collection of utilities for working with test lifecycle methods.25 *26 * @since 5.027 */​28final class LifecycleMethodUtils {29 private LifecycleMethodUtils() {30 /​* no-op */​31 }32 static List<Method> findBeforeAllMethods(Class<?> testClass, boolean requireStatic) {33 return findMethodsAndAssertStatic(testClass, requireStatic, BeforeAll.class, HierarchyTraversalMode.TOP_DOWN);34 }35 static List<Method> findAfterAllMethods(Class<?> testClass, boolean requireStatic) {36 return findMethodsAndAssertStatic(testClass, requireStatic, AfterAll.class, HierarchyTraversalMode.BOTTOM_UP);37 }38 static List<Method> findBeforeEachMethods(Class<?> testClass) {39 return findMethodsAndAssertNonStatic(testClass, BeforeEach.class, HierarchyTraversalMode.TOP_DOWN);40 }41 static List<Method> findAfterEachMethods(Class<?> testClass) {42 return findMethodsAndAssertNonStatic(testClass, AfterEach.class, HierarchyTraversalMode.BOTTOM_UP);43 }44 private static void assertStatic(Class<? extends Annotation> annotationType, Method method) {45 if (ReflectionUtils.isNotStatic(method)) {46 throw new JUnitException(String.format(47 "@%s method '%s' must be static unless the test class is annotated with @TestInstance(Lifecycle.PER_CLASS).",48 annotationType.getSimpleName(), method.toGenericString()));49 }50 }51 private static void assertNonStatic(Class<? extends Annotation> annotationType, Method method) {52 if (ReflectionUtils.isStatic(method)) {53 throw new JUnitException(String.format("@%s method '%s' must not be static.",54 annotationType.getSimpleName(), method.toGenericString()));55 }56 }57 private static void assertVoid(Class<? extends Annotation> annotationType, Method method) {58 if (!returnsVoid(method)) {59 throw new JUnitException(String.format("@%s method '%s' must not return a value.",60 annotationType.getSimpleName(), method.toGenericString()));61 }62 }63 private static List<Method> findMethodsAndAssertStatic(Class<?> testClass, boolean requireStatic,64 Class<? extends Annotation> annotationType, HierarchyTraversalMode traversalMode) {65 List<Method> methods = findMethodsAndCheckVoidReturnType(testClass, annotationType, traversalMode);66 if (requireStatic) {67 methods.forEach(method -> assertStatic(annotationType, method));68 }69 return methods;70 }71 private static List<Method> findMethodsAndAssertNonStatic(Class<?> testClass,72 Class<? extends Annotation> annotationType, HierarchyTraversalMode traversalMode) {73 List<Method> methods = findMethodsAndCheckVoidReturnType(testClass, annotationType, traversalMode);74 methods.forEach(method -> assertNonStatic(annotationType, method));75 return methods;76 }77 private static List<Method> findMethodsAndCheckVoidReturnType(Class<?> testClass,78 Class<? extends Annotation> annotationType, HierarchyTraversalMode traversalMode) {79 List<Method> methods = findAnnotatedMethods(testClass, annotationType, traversalMode);80 methods.forEach(method -> assertVoid(annotationType, method));81 return methods;82 }83}...

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1package org.moreunit.preferences;2import java.util.HashMap;3import java.util.Map;4public class TestTypeConstants5{6 public static final Map<String, String> BEFORE_CLASS_METHOD_ANNOTATION = new HashMap<String, String>();7 public static final Map<String, String> BEFORE_METHOD_ANNOTATION = new HashMap<String, String>();8 public static final Map<String, String> TEARDOWN_METHOD_ANNOTATION = new HashMap<String, String>();9 public static final Map<String, String> AFTER_CLASS_METHOD_ANNOTATION = new HashMap<String, String>();10 public static final Map<String, String> TEST_ANNOTATION = new HashMap<String, String>();11 public static final Map<String, String> STATIC_IMPORT_BASE_CLASS = new HashMap<String, String>();12 static13 {14 BEFORE_CLASS_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_4, "org.junit.BeforeClass"); /​/​$NON-NLS-1$15 BEFORE_CLASS_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_5, "org.junit.jupiter.api.BeforeAll"); /​/​$NON-NLS-1$16 BEFORE_CLASS_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_TESTNG, "org.testng.annotations.BeforeClass"); /​/​$NON-NLS-1$17 BEFORE_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_4, "org.junit.Before"); /​/​$NON-NLS-1$18 BEFORE_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_5, "org.junit.jupiter.api.BeforeEach"); /​/​$NON-NLS-1$19 BEFORE_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_TESTNG, "org.testng.annotations.BeforeMethod"); /​/​$NON-NLS-1$20 TEARDOWN_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_4, "org.junit.After"); /​/​$NON-NLS-1$21 TEARDOWN_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_5, "org.junit.jupiter.api.AfterEach"); /​/​$NON-NLS-1$22 TEARDOWN_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_TESTNG, "org.testng.annotations.AfterMethod"); /​/​$NON-NLS-1$23 AFTER_CLASS_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_4, "org.junit.AfterClass"); /​/​$NON-NLS-1$24 AFTER_CLASS_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_5, "org.junit.jupiter.api.AfterAll"); /​/​$NON-NLS-1$25 AFTER_CLASS_METHOD_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_TESTNG, "org.testng.annotations.AfterClass"); /​/​$NON-NLS-1$26 TEST_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_4, "org.junit.Test"); /​/​$NON-NLS-1$27 TEST_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_5, "org.junit.jupiter.api.Test"); /​/​$NON-NLS-1$28 TEST_ANNOTATION.put(PreferenceConstants.TEST_TYPE_VALUE_TESTNG, "org.testng.annotations.Test"); /​/​$NON-NLS-1$29 STATIC_IMPORT_BASE_CLASS.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_4, "org.junit.Assert"); /​/​$NON-NLS-1$30 STATIC_IMPORT_BASE_CLASS.put(PreferenceConstants.TEST_TYPE_VALUE_JUNIT_5, "org.junit.jupiter.api.Assertions"); /​/​$NON-NLS-1$31 STATIC_IMPORT_BASE_CLASS.put(PreferenceConstants.TEST_TYPE_VALUE_TESTNG, "org.testng.Assert"); /​/​$NON-NLS-1$32 }33}...

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1/​*2 * Copyright 2019-2019 the original author or authors.3 *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 * https:/​/​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 org.springframework.cloud.kubernetes.discovery.support;17import java.lang.annotation.ElementType;18import java.lang.annotation.Retention;19import java.lang.annotation.RetentionPolicy;20import java.lang.annotation.Target;21import io.fabric8.kubernetes.client.KubernetesClient;22import io.fabric8.kubernetes.client.server.mock.KubernetesServer;23import org.junit.jupiter.api.extension.AfterEachCallback;24import org.junit.jupiter.api.extension.BeforeEachCallback;25import org.junit.jupiter.api.extension.ExtensionContext;26import org.junit.jupiter.api.extension.ParameterContext;27import org.junit.jupiter.api.extension.ParameterResolutionException;28import org.junit.jupiter.api.extension.ParameterResolver;29/​**30 * @author Tim Ysewyn31 */​32public class KubernetesExtension33 implements ParameterResolver, BeforeEachCallback, AfterEachCallback {34 private final KubernetesServer mockServer = new KubernetesServer();35 @Override36 public boolean supportsParameter(ParameterContext parameterContext,37 ExtensionContext context) {38 return (parameterContext.getParameter().isAnnotationPresent(Server.class)39 && KubernetesServer.class40 .isAssignableFrom(parameterContext.getParameter().getType()))41 || (parameterContext.getParameter().isAnnotationPresent(Client.class)42 && KubernetesClient.class.isAssignableFrom(43 parameterContext.getParameter().getType()));44 }45 @Override46 public void beforeEach(ExtensionContext context) throws Exception {47 mockServer.before();48 }49 @Override50 public void afterEach(ExtensionContext context) throws Exception {51 mockServer.after();52 }53 @Override54 public Object resolveParameter(ParameterContext parameterContext,55 ExtensionContext extensionContext) throws ParameterResolutionException {56 if (parameterContext.getParameter().isAnnotationPresent(Client.class)) {57 return mockServer.getClient();58 }59 else {60 return mockServer;61 }62 }63 /​**64 * Enables injection of kubernetes server to test.65 */​66 @Target({ ElementType.PARAMETER })67 @Retention(RetentionPolicy.RUNTIME)68 public @interface Server {69 }70 /​**71 * Enables injection of kubernetes client to test.72 */​73 @Target({ ElementType.PARAMETER })74 @Retention(RetentionPolicy.RUNTIME)75 public @interface Client {76 }77}...

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1package org.junit.experimental.categories;2import static java.util.Arrays.asList;3import static java.util.Collections.unmodifiableList;4import static java.util.Collections.unmodifiableSet;5import java.lang.annotation.Annotation;6import java.util.ArrayList;7import java.util.HashSet;8import java.util.List;9import java.util.Set;10import org.junit.After;11import org.junit.AfterClass;12import org.junit.Before;13import org.junit.BeforeClass;14import org.junit.runners.model.FrameworkMethod;15import org.junit.validator.AnnotationValidator;16/​**17 * Validates that there are no errors in the use of the {@code Category}18 * annotation. If there is, a {@code Throwable} object will be added to the list19 * of errors.20 *21 * @since 4.1222 */​23public final class CategoryValidator extends AnnotationValidator {24 @SuppressWarnings("unchecked")25 private static final Set<Class<? extends Annotation>> INCOMPATIBLE_ANNOTATIONS = unmodifiableSet(new HashSet<Class<? extends Annotation>>(26 asList(BeforeClass.class, AfterClass.class, Before.class, After.class)));27 /​**28 * Adds to {@code errors} a throwable for each problem detected. Looks for29 * {@code BeforeClass}, {@code AfterClass}, {@code Before} and {@code After}30 * annotations.31 *32 * @param method the method that is being validated33 * @return A list of exceptions detected34 *35 * @since 4.1236 */​37 @Override38 public List<Exception> validateAnnotatedMethod(FrameworkMethod method) {39 List<Exception> errors = new ArrayList<Exception>();40 Annotation[] annotations = method.getAnnotations();41 for (Annotation annotation : annotations) {42 for (Class<?> clazz : INCOMPATIBLE_ANNOTATIONS) {43 if (annotation.annotationType().isAssignableFrom(clazz)) {44 addErrorMessage(errors, clazz);45 }46 }47 }48 return unmodifiableList(errors);49 }50 private void addErrorMessage(List<Exception> errors, Class<?> clazz) {51 String message = String.format("@%s can not be combined with @Category",52 clazz.getSimpleName());53 errors.add(new Exception(message));54 }55}...

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1package org.junit;2import java.lang.annotation.ElementType;3import java.lang.annotation.Retention;4import java.lang.annotation.RetentionPolicy;5import java.lang.annotation.Target;6/​**7 * If you allocate expensive external resources in a {@link org.junit.BeforeClass} method you need to release them8 * after all the tests in the class have run. Annotating a <code>public static void</​code> method9 * with <code>&#064;AfterClass</​code> causes that method to be run after all the tests in the class have been run. All <code>&#064;AfterClass</​code>10 * methods are guaranteed to run even if a {@link org.junit.BeforeClass} method throws an11 * exception. The <code>&#064;AfterClass</​code> methods declared in superclasses will be run after those of the current12 * class, unless they are shadowed in the current class.13 * <p>14 * Here is a simple example:15 * <pre>16 * public class Example {17 * private static DatabaseConnection database;18 * &#064;BeforeClass public static void login() {19 * database= ...;20 * }21 * &#064;Test public void something() {22 * ...23 * }24 * &#064;Test public void somethingElse() {25 * ...26 * }27 * &#064;AfterClass public static void logout() {28 * database.logout();29 * }30 * }31 * </​pre>32 *33 * @see org.junit.BeforeClass34 * @see org.junit.Test35 * @since 4.036 */​37@Retention(RetentionPolicy.RUNTIME)38@Target(ElementType.METHOD)39public @interface AfterClass {40}...

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1package org.junit;2import java.lang.annotation.ElementType;3import java.lang.annotation.Retention;4import java.lang.annotation.RetentionPolicy;5import java.lang.annotation.Target;6/​**7 * If you allocate external resources in a {@link org.junit.Before} method you need to release them8 * after the test runs. Annotating a <code>public void</​code> method9 * with <code>&#064;After</​code> causes that method to be run after the {@link org.junit.Test} method. All <code>&#064;After</​code>10 * methods are guaranteed to run even if a {@link org.junit.Before} or {@link org.junit.Test} method throws an11 * exception. The <code>&#064;After</​code> methods declared in superclasses will be run after those of the current12 * class, unless they are overridden in the current class.13 * <p>14 * Here is a simple example:15 * <pre>16 * public class Example {17 * File output;18 * &#064;Before public void createOutputFile() {19 * output= new File(...);20 * }21 * &#064;Test public void something() {22 * ...23 * }24 * &#064;After public void deleteOutputFile() {25 * output.delete();26 * }27 * }28 * </​pre>29 *30 * @see org.junit.Before31 * @see org.junit.Test32 * @since 4.033 */​34@Retention(RetentionPolicy.RUNTIME)35@Target(ElementType.METHOD)36public @interface After {37}...

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Annotation Type After

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1public static void afterClass() {2 System.out.println("afterClass");3}4public static void beforeClass() {5 System.out.println("beforeClass");6}7public void after() {8 System.out.println("after");9}10public void before() {11 System.out.println("before");12}13public void test() {14 System.out.println("test");15}16public void test2() {17 System.out.println("test2");18}19public void test3() {20 System.out.println("test3");21}22public void test4() {23 System.out.println("test4");24}25public void test5() {26 System.out.println("test5");27}28public void test6() {29 System.out.println("test6");30}31public void test7() {32 System.out.println("test7");33}34public void test8() {35 System.out.println("test8");36}37public void test9() {38 System.out.println("test9");39}40public void test10() {41 System.out.println("test10");42}43public void test11() {44 System.out.println("test11");45}46public void test12() {47 System.out.println("test12");48}49public void test13() {50 System.out.println("test13");51}

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1public class MyClassTest {2 public void setUp() {3 }4 public void tearDown() {5 }6 public void testMethod1() {7 }8 public void testMethod2() {9 }10}11public class MyClassTest {12 public static void setUp() {13 }14 public static void tearDown() {15 }16 public void testMethod1() {17 }18 public void testMethod2() {19 }20}21public void testMethod1() {22}23@Ignore("Not yet implemented")24public void testMethod1() {25}

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1public class Junit5Test {2 @DisplayName("My First Test")3 void myFirstTest() {4 System.out.println("Hello World!");5 }6}7package com.dineshonjava.junit5; import org.junit.jupiter.api.Test; import org.junit.jupiter.api.DisplayName; public class Junit5Test { @Test @DisplayName("My First Test") void myFirstTest() { System.out.println("Hello World!"); } @Test @DisplayName("My Second Test") void mySecondTest() { System.out.println("Hello World!"); } @Test @DisplayName("My Third Test") void myThirdTest() { System.out.println("Hello World!"); } }

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1(for (i <- 0 until rnd.nextInt(64)) yield { 2 ('0' + rnd.nextInt(64)).asInstanceOf[Char] 3}) mkString("")4
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1import org.apache.commons.lang.RandomStringUtils;2RandomStringUtils.randomAlphanumeric(64);3
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1public static String randomSeriesForThreeCharacter() {2 Random r = new Random();3 String value = "";4 char random_Char ;5 for(int i=0; i<10; i++)6 {7 random_Char = (char) (48 + r.nextInt(74));8 value = value + random_char;9 }10 return value;11}12
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JUnit 4 Expected Exception type

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Best way to automagically migrate tests from JUnit 3 to JUnit 4?

There's actually an alternative to the @Test(expected=Xyz.class) in JUnit 4.7 using Rule and ExpectedException

In your test case you declare an ExpectedException annotated with @Rule, and assign it a default value of ExpectedException.none(). Then in your test that expects an exception you replace the value with the actual expected value. The advantage of this is that without using the ugly try/catch method, you can further specify what the message within the exception was

@Rule public ExpectedException thrown= ExpectedException.none();

@Test
public void myTest() {
    thrown.expect( Exception.class );
    thrown.expectMessage("Init Gold must be >= 0");

    rodgers = new Pirate("Dread Pirate Rodgers" , -100);
}

Using this method, you might be able to test for the message in the generic exception to be something specific.

ADDITION Another advantage of using ExpectedException is that you can more precisely scope the exception within the context of the test case. If you are only using @Test(expected=Xyz.class) annotation on the test, then the Xyz exception can be thrown anywhere in the test code -- including any test setup or pre-asserts within the test method. This can lead to a false positive.

Using ExpectedException, you can defer specifying the thrown.expect(Xyz.class) until after any setup and pre-asserts, just prior to actually invoking the method under test. Thus, you more accurately scope the exception to be thrown by the actual method invocation rather than any of the test fixture itself.

JUnit 5 NOTE:

JUnit 5 JUnit Jupiter has removed @Test(expected=...), @Rule and ExpectedException altogether. They are replaced with the new assertThrows(), which requires the use of Java 8 and lambda syntax. ExpectedException is still available for use in JUnit 5 through JUnit Vintage. Also JUnit Jupiter will also continue to support JUnit 4 ExpectedException through use of the junit-jupiter-migrationsupport module, but only if you add an additional class-level annotation of @EnableRuleMigrationSupport.

https://stackoverflow.com/questions/16723715/junit-4-expected-exception-type

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JUnit Tutorial:

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JUnit Certification:

You can also check out our JUnit certification if you wish to take your career in Selenium automation testing with JUnit to the next level.

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