KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use getTestClass method of org.junit.runners.parameterized.TestWithParameters class

Best junit code snippet using org.junit.runners.parameterized.TestWithParameters.getTestClass

Source:BrowserParameterizedRunner.java

...169            final String pattern, final int index, final Object parametersOrSingleParameter) {170        final Object[] parameters = (parametersOrSingleParameter instanceof Object[])171                ? (Object[]) parametersOrSingleParameter172                : new Object[] {parametersOrSingleParameter};173        return createTestWithParameters(getTestClass(), pattern, index,174                parameters);175    }176    @SuppressWarnings("unchecked")177    private Iterable<Object> allParameters() throws Throwable {178        final Object parameters = getParametersMethod().invokeExplosively(null);179        if (parameters instanceof Iterable) {180            return (Iterable<Object>) parameters;181        }182        else if (parameters instanceof Object[]) {183            return Arrays.asList((Object[]) parameters);184        }185        else {186            throw parametersMethodReturnedWrongType();187        }188    }189    private FrameworkMethod getParametersMethod() throws Exception {190        final List<FrameworkMethod> methods = getTestClass().getAnnotatedMethods(191                Parameters.class);192        for (final FrameworkMethod each : methods) {193            if (each.isStatic() && each.isPublic()) {194                return each;195            }196        }197        throw new Exception("No public static parameters method on class "198                + getTestClass().getName());199    }200    private List<TestWithParameters> createTestsForParameters(201            final Iterable<Object> allParameters, final String namePattern) {202        int i = 0;203        final List<TestWithParameters> children = new ArrayList<>();204        for (final Object parametersOfSingleTest : allParameters) {205            children.add(createTestWithNotNormalizedParameters(namePattern,206                    i++, parametersOfSingleTest));207        }208        return children;209    }210    private Exception parametersMethodReturnedWrongType() throws Exception {211        final String className = getTestClass().getName();212        final String methodName = getParametersMethod().getName();213        final String message = MessageFormat.format(214                "{0}.{1}() must return an Iterable of arrays.",215                className, methodName);216        return new Exception(message);217    }218    private static TestWithParameters createTestWithParameters(219            final TestClass testClass, final String pattern, final int index, final Object[] parameters) {220        final String finalPattern = pattern.replaceAll("\\{index\\}",221                Integer.toString(index));222        final String name = MessageFormat.format(finalPattern, parameters);223        return new TestWithParameters("[" + name + "]", testClass,224                Arrays.asList(parameters));225    }226    private void verifyDefaultMEthod() throws Exception {227        final List<FrameworkMethod> methods = getTestClass().getAnnotatedMethods(Default.class);228        if (methods.size() != 1) {229            throw new Exception("A single method with @Default must exist in class "230                + getTestClass().getName());231        }232    }233    /**234     * {@inheritDoc}235     */236    @Override237    public void filter(final Filter filter) throws NoTestsRemainException {238        boolean atLeastOne = false;239        for (final Runner runner : getChildren()) {240            try {241                if (runner instanceof Filterable) {242                    ((Filterable) runner).filter(filter);243                    atLeastOne = true;244                }...

Source:Parameterized.java

...270/*     */   271/*     */   private TestWithParameters createTestWithNotNormalizedParameters(String pattern, int index, Object parametersOrSingleParameter) {272/* 272 */     (new Object[1])[0] = parametersOrSingleParameter; Object[] parameters = (parametersOrSingleParameter instanceof Object[]) ? (Object[])parametersOrSingleParameter : new Object[1];273/*     */     274/* 274 */     return createTestWithParameters(getTestClass(), pattern, index, parameters);275/*     */   }276/*     */ 277/*     */ 278/*     */   279/*     */   private Iterable<Object> allParameters() throws Throwable {280/* 280 */     Object parameters = getParametersMethod().invokeExplosively(null, new Object[0]);281/* 281 */     if (parameters instanceof Iterable)282/* 282 */       return (Iterable<Object>)parameters; 283/* 283 */     if (parameters instanceof Object[]) {284/* 284 */       return Arrays.asList((Object[])parameters);285/*     */     }286/* 286 */     throw parametersMethodReturnedWrongType();287/*     */   }288/*     */ 289/*     */   290/*     */   private FrameworkMethod getParametersMethod() throws Exception {291/* 291 */     List<FrameworkMethod> methods = getTestClass().getAnnotatedMethods(Parameters.class);292/*     */     293/* 293 */     for (FrameworkMethod each : methods) {294/* 294 */       if (each.isStatic() && each.isPublic()) {295/* 295 */         return each;296/*     */       }297/*     */     } 298/*     */     299/* 299 */     throw new Exception("No public static parameters method on class " + getTestClass().getName());300/*     */   }301/*     */ 302/*     */ 303/*     */ 304/*     */ 305/*     */ 306/*     */   307/*     */   private List<Runner> createRunnersForParameters(Iterable<Object> allParameters, String namePattern, ParametersRunnerFactory runnerFactory) throws InitializationError, Exception {308/*     */     try {309/* 309 */       List<TestWithParameters> tests = createTestsForParameters(allParameters, namePattern);310/*     */       311/* 311 */       List<Runner> runners = new ArrayList<Runner>();312/* 312 */       for (TestWithParameters test : tests) {313/* 313 */         runners.add(runnerFactory.createRunnerForTestWithParameters(test));314/*     */       }315/*     */       316/* 316 */       return runners;317/* 317 */     } catch (ClassCastException e) {318/* 318 */       throw parametersMethodReturnedWrongType();319/*     */     } 320/*     */   }321/*     */ 322/*     */ 323/*     */   324/*     */   private List<TestWithParameters> createTestsForParameters(Iterable<Object> allParameters, String namePattern) throws Exception {325/* 325 */     int i = 0;326/* 326 */     List<TestWithParameters> children = new ArrayList<TestWithParameters>();327/* 327 */     for (Object parametersOfSingleTest : allParameters) {328/* 328 */       children.add(createTestWithNotNormalizedParameters(namePattern, i++, parametersOfSingleTest));329/*     */     }330/*     */     331/* 331 */     return children;332/*     */   }333/*     */   334/*     */   private Exception parametersMethodReturnedWrongType() throws Exception {335/* 335 */     String className = getTestClass().getName();336/* 336 */     String methodName = getParametersMethod().getName();337/* 337 */     String message = MessageFormat.format("{0}.{1}() must return an Iterable of arrays.", new Object[] { className, methodName });338/*     */ 339/*     */     340/* 340 */     return new Exception(message);341/*     */   }342/*     */ 343/*     */   344/*     */   private static TestWithParameters createTestWithParameters(TestClass testClass, String pattern, int index, Object[] parameters) {345/* 345 */     String finalPattern = pattern.replaceAll("\\{index\\}", Integer.toString(index));346/*     */     347/* 347 */     String name = MessageFormat.format(finalPattern, parameters);348/* 348 */     return new TestWithParameters("[" + name + "]", testClass, Arrays.asList(parameters));349/*     */   }...

Source:Live.java

...38    }39  }40  protected List<Runner> createRunners(Class<?> klass) throws InitializationError {41    List<Runner> result = new ArrayList<Runner>();42    TestWithParameters test = new TestWithParameters(graph.manager().toString(), getTestClass(),43                                                     Arrays.<Object>asList(graph.manager()));44    result.add(new BlockJUnit4ClassRunnerWithParameters(test));45    return Collections.unmodifiableList(result);46  }47  private static TestGraph testGraph(Class<?> klass) throws InitializationError {48    try {49      return klass.isAnnotationPresent(UseTestGraph.class) ?50             klass.getAnnotation(UseTestGraph.class).value().newInstance() : new TestGraph();51    } catch (Exception e) {52      throw new InitializationError(e);53    }54  }55  @Override56  protected List<Runner> getChildren() {57    return runners;58  }59  public static final class Write extends Live {60    public Write(Class<?> klass) throws InitializationError {61      super(klass);62    }63    @Retention(RetentionPolicy.RUNTIME)64    @Inherited65    @Target(ElementType.TYPE)66    public @interface Profile {67      String value() default "basic";68    }69    @Override70    protected List<Runner> createRunners(Class<?> klass) throws InitializationError {71      // Special case the only test for zone mutation72      if (ZoneWriteCommandsLiveTest.class.isAssignableFrom(klass)) {73        String zoneToCreate = graph.deleteTestZone();74        TestWithParameters test = new TestWithParameters("[" + zoneToCreate + "]", getTestClass(),75                                                         asList(graph.manager(), zoneToCreate));76        return Collections.<Runner>singletonList(new BlockJUnit4ClassRunnerWithParameters(test));77      }78      String profile = klass.isAnnotationPresent(Profile.class) ?79                       klass.getAnnotation(Profile.class).value() : "basic";80      List<Runner> result = new ArrayList<Runner>();81      List<ResourceRecordSet<?>>82          rrsets =83          profile.equals("basic") ? graph.basicRecordSets(klass)84                                  : graph.recordSetsForProfile(klass, profile);85      Zone zone = graph.createZoneIfAbsent();86      for (ResourceRecordSet<?> rrs : rrsets) {87        TestWithParameters test = new TestWithParameters("[" + rrs + "]", getTestClass(),88                                                         asList(graph.manager(), zone, rrs));89        result.add(new BlockJUnit4ClassRunnerWithParameters(test));90      }91      return Collections.unmodifiableList(result);92    }93  }94}...

Source:CustomParameterizedRunner.java

...68        return m_test;69        }70    protected Statement withBeforeParameters(Statement statement, Object target)71        {72        List<FrameworkMethod> befores = getTestClass().getAnnotatedMethods(BeforeParmeterizedRun.class);73        return befores.isEmpty()74               ? statement75               : new RunBefores(statement, befores, target);76        }77    protected Statement withAfterParameters(Statement statement, Object target)78        {79        List<FrameworkMethod> afters = getTestClass().getAnnotatedMethods(AfterParmeterizedRun.class);80        return afters.isEmpty()81               ? statement82               : new RunAfters(statement, afters, target);83        }84    public static class Factory85            implements ParametersRunnerFactory86        {87        @Override88        public Runner createRunnerForTestWithParameters(TestWithParameters test)89                throws InitializationError90            {91            return new CustomParameterizedRunner(test);92            }93        }...

Source:ZKParameterized.java

...38            super(test);39        }40        @Override41        protected List<FrameworkMethod> computeTestMethods() {42            return JUnit4ZKTestRunner.computeTestMethodsForClass(getTestClass().getJavaClass(), super.computeTestMethods());43        }44        @Override45        protected Statement methodInvoker(FrameworkMethod method, Object test) {46            return new JUnit4ZKTestRunner.LoggedInvokeMethod(method, test);47        }48    }49}...

Source:IsolatedParametersRunnerFactory.java

...32        public IsolatedParameterizedRunner(TestWithParameters test) throws InitializationError {33            super(isolated(test));34        }35        private static TestWithParameters isolated(TestWithParameters test) throws InitializationError {36            Class<?> testClass = test.getTestClass().getJavaClass();37            Class<?> isolatedTestClass = IsolatedClassLoader.isolatedTestClass(testClass);38            return new TestWithParameters(test.getName(), new TestClass(isolatedTestClass), test.getParameters());39        }40    }41}...

Source:SpringJUnit4ClassRunnerFactory.java

...10	public Runner createRunnerForTestWithParameters(TestWithParameters test)11			throws InitializationError {12		BlockJUnit4ClassRunnerWithParameters runnerWithParameters13						= new BlockJUnit4ClassRunnerWithParameters(test);14		return new SpringJUnit4ClassRunner(test.getTestClass().getJavaClass()) {15			@Override16			protected Object createTest() throws Exception {17				final Object testInstance = runnerWithParameters.createTest();18				getTestContextManager().prepareTestInstance(testInstance);19				return testInstance;20			}21		};22	}23}...

getTestClass

Using AI Code Generation

1[INFO] [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ junit4-runner ---2[INFO] [INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ junit4-runner ---3[INFO] [INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ junit4-runner ---4[INFO] [INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ junit4-runner ---5[INFO] [INFO] --- maven-install-plugin:2.4:install (default-install) @ junit4-runner ---6[INFO] [INFO] --- maven-deploy-plugin:2.7:deploy (

getTestClass

Using AI Code Generation

1public class TestWithParameters {2    public static Collection<Object[]> data() {3        return Arrays.asList(new Object[][] { { 1, 1 }, { 2, 2 }, { 3, 3 } });4    }5    private int fInput;6    private int fExpected;7    public TestWithParameters(int input, int expected) {8        fInput = input;9        fExpected = expected;10    }11    public void test() {12        assertEquals(fExpected, fInput);13    }14}15public class TestWithParameters {16    public static Collection<Object[]> data() {17        return Arrays.asList(new Object[][] { { 1, 1 }, { 2, 2 }, { 3, 3 } });18    }19    private int fInput;20    private int fExpected;21    public TestWithParameters(int input, int expected) {22        fInput = input;23        fExpected = expected;24    }25    public void test() {26        assertEquals(fExpected, fInput);27    }28}29public class TestWithParameters {30    public static Collection<Object[]> data() {31        return Arrays.asList(new Object[][] { { 1, 1 }, { 2, 2 }, { 3, 3 } });32    }33    private int fInput;34    private int fExpected;35    public TestWithParameters(int input, int expected) {36        fInput = input;37        fExpected = expected;38    }39    public void test() {40        assertEquals(fExpected, fInput);41    }42}43public class TestWithParameters {44    public static Collection<Object[]> data() {45        return Arrays.asList(new Object[][] { { 1, 1 }, { 2, 2 }, { 3, 3 } });

getTestClass

Using AI Code Generation

1import org.junit.Test;2import org.junit.runner.RunWith;3import org.junit.runners.Parameterized;4import org.junit.runners.Parameterized.Parameters;5import java.lang.reflect.Method;6import java.lang.reflect.InvocationTargetException;7import java.util.Arrays;8import java.util.Collection;9@RunWith(Parameterized.class)10public class TestWithParameters {11    private int m1;12    private int m2;13    private int expected;14    public TestWithParameters(int m1, int m2, int expected) {15        this.m1 = m1;16        this.m2 = m2;17        this.expected = expected;18    }19    public static Collection<Object[]> data() {20        Object[][] data = new Object[][] { { 1, 2, 3 }, { 5, 3, 8 }, { 121, 4, 125 } };21        return Arrays.asList(data);22    }23    public void test() throws ClassNotFoundException, NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {24        Class<?> testClass = getTestClass();25        Object testClassObject = testClass.newInstance();26        Method method = testClass.getMethod("test", int.class, int.class, int.class);27        method.invoke(testClassObject, m1, m2, expected);28    }29    private Class<?> getTestClass() throws ClassNotFoundException {30        return Class.forName("com.test.TestClass");31    }32}33package com.test;34public class TestClass {35    public void test(int m1, int m2, int expected) {36        if (m1 + m2 != expected) {37            throw new RuntimeException("Sum is not as expected");38        }39    }40}41    at com.test.TestClass.test(TestWithParameters.java:51)42    at com.test.TestWithParameters.test(TestWithParameters.java:43)43    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)44    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)45    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)46    at java.lang.reflect.Method.invoke(Method.java:498)

JUnit Tutorial:

LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.

JUnit Tutorial Chapters:

Here are the detailed JUnit testing chapters to help you get started:

Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
Top Java Unit testing frameworks - Here are the upcoming JUnit automation testing frameworks that you can use in 2023 to boost your unit testing.
What is the JUnit framework
Why is JUnit testing important - Learn the importance and numerous benefits of using the JUnit testing framework.
Features of JUnit - Learn about the numerous features of JUnit and why developers prefer it.
JUnit 5 vs. JUnit 4: Differences - Here is a complete comparison between JUnit 5 and JUnit 4 testing frameworks.
Setting up the JUnit environment - Learn how to set up your JUnit testing environment.
Getting started with JUnit testing - After successfully setting up your JUnit environment, this chapter will help you get started with JUnit testing in no time.
Parallel testing with JUnit - Parallel Testing can be used to reduce test execution time and improve test efficiency. Learn how to perform parallel testing with JUnit.
Annotations in JUnit - When writing automation scripts with JUnit, we can use JUnit annotations to specify the type of methods in our test code. This helps us identify those methods when we run JUnit tests using Selenium WebDriver. Learn in detail what annotations are in JUnit.
Assertions in JUnit - Assertions are used to validate or test that the result of an action/functionality is the same as expected. Learn in detail what assertions are and how to use them while performing JUnit testing.
Parameterization in JUnit - Parameterized Test enables you to run the same automated test scripts with different variables. By collecting data on each method's test parameters, you can minimize time spent on writing tests. Learn how to use parameterization in JUnit.
Nested Tests In JUnit 5 - A nested class is a non-static class contained within another class in a hierarchical structure. It can share the state and setup of the outer class. Learn about nested annotations in JUnit 5 with examples.
Best practices for JUnit testing - Learn about the best practices, such as always testing key methods and classes, integrating JUnit tests with your build, and more to get the best possible results.
Advanced Use Cases for JUnit testing - Take a deep dive into the advanced use cases, such as how to run JUnit tests in Jupiter, how to use JUnit 5 Mockito for Unit testing, and more for JUnit testing.