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How to use Parameterized class of org.junit.runners package
Best junit code snippet using org.junit.runners.Parameterized
Source:BlockJUnit4ClassRunnerWithParameters.java 
...3import java.lang.reflect.Field;4import java.util.List;5import org.junit.runner.notification.RunNotifier;6import org.junit.runners.BlockJUnit4ClassRunner;7import org.junit.runners.Parameterized;8import org.junit.runners.model.FrameworkField;9import org.junit.runners.model.FrameworkMethod;10import org.junit.runners.model.InitializationError;11import org.junit.runners.model.Statement;12public class BlockJUnit4ClassRunnerWithParameters extends BlockJUnit4ClassRunner {13 private final String name;14 private final Object[] parameters;15 public BlockJUnit4ClassRunnerWithParameters(TestWithParameters test) throws InitializationError {16 super(test.getTestClass().getJavaClass());17 this.parameters = test.getParameters().toArray(new Object[test.getParameters().size()]);18 this.name = test.getName();19 }20 @Override // org.junit.runners.BlockJUnit4ClassRunner21 public Object createTest() throws Exception {22 if (fieldsAreAnnotated()) {23 return createTestUsingFieldInjection();24 }25 return createTestUsingConstructorInjection();26 }27 private Object createTestUsingConstructorInjection() throws Exception {28 return getTestClass().getOnlyConstructor().newInstance(this.parameters);29 }30 private Object createTestUsingFieldInjection() throws Exception {31 List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();32 if (annotatedFieldsByParameter.size() == this.parameters.length) {33 Object testClassInstance = getTestClass().getJavaClass().newInstance();34 for (FrameworkField each : annotatedFieldsByParameter) {35 Field field = each.getField();36 int index = ((Parameterized.Parameter) field.getAnnotation(Parameterized.Parameter.class)).value();37 try {38 field.set(testClassInstance, this.parameters[index]);39 } catch (IllegalArgumentException iare) {40 throw new Exception(getTestClass().getName() + ": Trying to set " + field.getName() + " with the value " + this.parameters[index] + " that is not the right type (" + this.parameters[index].getClass().getSimpleName() + " instead of " + field.getType().getSimpleName() + ").", iare);41 }42 }43 return testClassInstance;44 }45 throw new Exception("Wrong number of parameters and @Parameter fields. @Parameter fields counted: " + annotatedFieldsByParameter.size() + ", available parameters: " + this.parameters.length + ".");46 }47 /* access modifiers changed from: protected */48 @Override // org.junit.runners.ParentRunner49 public String getName() {50 return this.name;51 }52 /* access modifiers changed from: protected */53 @Override // org.junit.runners.BlockJUnit4ClassRunner54 public String testName(FrameworkMethod method) {55 return method.getName() + getName();56 }57 /* access modifiers changed from: protected */58 @Override // org.junit.runners.BlockJUnit4ClassRunner59 public void validateConstructor(List<Throwable> errors) {60 validateOnlyOneConstructor(errors);61 if (fieldsAreAnnotated()) {62 validateZeroArgConstructor(errors);63 }64 }65 /* access modifiers changed from: protected */66 @Override // org.junit.runners.BlockJUnit4ClassRunner67 public void validateFields(List<Throwable> errors) {68 super.validateFields(errors);69 if (fieldsAreAnnotated()) {70 List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();71 int[] usedIndices = new int[annotatedFieldsByParameter.size()];72 for (FrameworkField each : annotatedFieldsByParameter) {73 int index = ((Parameterized.Parameter) each.getField().getAnnotation(Parameterized.Parameter.class)).value();74 if (index < 0 || index > annotatedFieldsByParameter.size() - 1) {75 errors.add(new Exception("Invalid @Parameter value: " + index + ". @Parameter fields counted: " + annotatedFieldsByParameter.size() + ". Please use an index between 0 and " + (annotatedFieldsByParameter.size() - 1) + "."));76 } else {77 usedIndices[index] = usedIndices[index] + 1;78 }79 }80 for (int index2 = 0; index2 < usedIndices.length; index2++) {81 int numberOfUse = usedIndices[index2];82 if (numberOfUse == 0) {83 errors.add(new Exception("@Parameter(" + index2 + ") is never used."));84 } else if (numberOfUse > 1) {85 errors.add(new Exception("@Parameter(" + index2 + ") is used more than once (" + numberOfUse + ")."));86 }87 }88 }89 }90 /* access modifiers changed from: protected */91 @Override // org.junit.runners.ParentRunner92 public Statement classBlock(RunNotifier notifier) {93 return childrenInvoker(notifier);94 }95 /* access modifiers changed from: protected */96 @Override // org.junit.runners.ParentRunner97 public Annotation[] getRunnerAnnotations() {98 return new Annotation[0];99 }100 private List<FrameworkField> getAnnotatedFieldsByParameter() {101 return getTestClass().getAnnotatedFields(Parameterized.Parameter.class);102 }103 private boolean fieldsAreAnnotated() {104 return !getAnnotatedFieldsByParameter().isEmpty();105 }106}...
Source:AbstractParameterizedHazelcastClassRunner.java
...15 */16package com.hazelcast.test;17import org.junit.runner.notification.RunNotifier;18import org.junit.runners.BlockJUnit4ClassRunner;19import org.junit.runners.Parameterized;20import org.junit.runners.model.FrameworkField;21import org.junit.runners.model.FrameworkMethod;22import org.junit.runners.model.InitializationError;23import org.junit.runners.model.Statement;24import java.lang.annotation.Annotation;25import java.lang.reflect.Field;26import java.util.List;27/**28 * A base test runner which has an ability to run parameterized tests.29 */30public abstract class AbstractParameterizedHazelcastClassRunner extends BlockJUnit4ClassRunner {31 protected boolean isParameterized;32 protected Object[] fParameters;33 protected String fName;34 /**35 * Creates a BlockJUnit4ClassRunner to run {@code clazz}36 *37 * @throws org.junit.runners.model.InitializationError if the test class is malformed.38 */39 public AbstractParameterizedHazelcastClassRunner(Class<?> clazz) throws InitializationError {40 super(clazz);41 }42 public AbstractParameterizedHazelcastClassRunner(Class<?> clazz, Object[] parameters, String name)43 throws InitializationError {44 super(clazz);45 fParameters = parameters;46 fName = name;47 isParameterized = true;48 }49 @Override50 protected String getName() {51 if (isParameterized) {52 return fName;53 } else {54 return super.getName();55 }56 }57 @Override58 protected String testName(FrameworkMethod method) {59 if (isParameterized) {60 return method.getName() + getName();61 } else {62 return method.getName();63 }64 }65 public void setParameterized(boolean isParameterized) {66 this.isParameterized = isParameterized;67 }68 @Override69 public Object createTest() throws Exception {70 if (isParameterized) {71 if (fieldsAreAnnotated()) {72 return createTestUsingFieldInjection();73 } else {74 return createTestUsingConstructorInjection();75 }76 }77 return super.createTest();78 }79 private Object createTestUsingConstructorInjection() throws Exception {80 return getTestClass().getOnlyConstructor().newInstance(fParameters);81 }82 @Override83 protected void validateConstructor(List<Throwable> errors) {84 validateOnlyOneConstructor(errors);85 if (fieldsAreAnnotated()) {86 validateZeroArgConstructor(errors);87 }88 }89 private Object createTestUsingFieldInjection() throws Exception {90 List<FrameworkField> annotatedFieldsByParameter = getAnnotatedFieldsByParameter();91 if (annotatedFieldsByParameter.size() != fParameters.length) {92 throw new Exception("Wrong number of parameters and @Parameter fields."93 + " @Parameter fields counted: " + annotatedFieldsByParameter.size()94 + ", available parameters: " + fParameters.length + ".");95 }96 Object testClassInstance = getTestClass().getJavaClass().newInstance();97 for (FrameworkField each : annotatedFieldsByParameter) {98 Field field = each.getField();99 Parameterized.Parameter annotation = field.getAnnotation(Parameterized.Parameter.class);100 int index = annotation.value();101 try {102 field.set(testClassInstance, fParameters[index]);103 } catch (IllegalArgumentException iare) {104 throw new Exception(getTestClass().getName() + ": Trying to set " + field.getName()105 + " with the value " + fParameters[index]106 + " that is not the right type (" + fParameters[index].getClass().getSimpleName() + " instead of "107 + field.getType().getSimpleName() + ").", iare);108 }109 }110 return testClassInstance;111 }112 private boolean fieldsAreAnnotated() {113 return !getAnnotatedFieldsByParameter().isEmpty();114 }115 private List<FrameworkField> getAnnotatedFieldsByParameter() {116 return getTestClass().getAnnotatedFields(Parameterized.Parameter.class);117 }118 @Override119 protected Statement classBlock(RunNotifier notifier) {120 if (isParameterized) {121 return childrenInvoker(notifier);122 } else {123 return super.classBlock(notifier);124 }125 }126 @Override127 protected Annotation[] getRunnerAnnotations() {128 return new Annotation[0];129 }130}...
Source:ClassificationRunnerWithParameters.java
...17import org.eclipse.papyrus.junit.framework.classification.rules.Conditional;18import org.junit.rules.TestRule;19import org.junit.runner.Description;20import org.junit.runner.notification.RunNotifier;21import org.junit.runners.Parameterized;22import org.junit.runners.Parameterized.Parameters;23import org.junit.runners.Parameterized.UseParametersRunnerFactory;24import org.junit.runners.model.FrameworkMethod;25import org.junit.runners.model.InitializationError;26import org.junit.runners.model.Statement;27import org.junit.runners.parameterized.BlockJUnit4ClassRunnerWithParameters;28import org.junit.runners.parameterized.TestWithParameters;29/**30 * A Test Runner which is aware of Classification-related annotations and {@link Conditional @Conditional} tests,31 * for use with test {@link Parameters}.32 *33 * It ignores the test methods according to their annotations, and the policy defined34 * in {@link ClassificationConfig}.35 *36 * @see Parameterized37 * @see UseParametersRunnerFactory38 * @see ClassificationRunnerWithParametersFactory39 * @see ClassificationConfig40 * @see TestCategory41 * @see Conditional42 *43 */44public class ClassificationRunnerWithParameters extends BlockJUnit4ClassRunnerWithParameters {45 private final ClassificationRunnerImpl impl;46 public ClassificationRunnerWithParameters(TestWithParameters test) throws InitializationError {47 super(test);48 this.impl = new ClassificationRunnerImpl(new ClassificationRunnerImpl.Delegate() {49 @Override50 public void runChild(FrameworkMethod method, RunNotifier notifier) {...
Source:ParametersButNotParameterizedTest.java
...18import com.google.errorprone.CompilationTestHelper;19import org.junit.Test;20import org.junit.runner.RunWith;21import org.junit.runners.JUnit4;22/** Tests for {@link ParametersButNotParameterized}. */23@RunWith(JUnit4.class)24public final class ParametersButNotParameterizedTest {25 private final CompilationTestHelper helper =26 CompilationTestHelper.newInstance(ParametersButNotParameterized.class, getClass());27 private final BugCheckerRefactoringTestHelper refactoringHelper =28 BugCheckerRefactoringTestHelper.newInstance(ParametersButNotParameterized.class, getClass());29 @Test30 public void positive() {31 refactoringHelper32 .addInputLines(33 "Test.java",34 "import org.junit.runner.RunWith;",35 "import org.junit.runners.JUnit4;",36 "import org.junit.runners.Parameterized.Parameter;",37 "@RunWith(JUnit4.class)",38 "public class Test {",39 " @Parameter public int foo;",40 "}")41 .addOutputLines(42 "Test.java",43 "import org.junit.runner.RunWith;",44 "import org.junit.runners.JUnit4;",45 "import org.junit.runners.Parameterized;",46 "import org.junit.runners.Parameterized.Parameter;",47 "@RunWith(Parameterized.class)",48 "public class Test {",49 " @Parameter public int foo;",50 "}")51 .doTest();52 }53 @Test54 public void alreadyParameterized_noFinding() {55 helper56 .addSourceLines(57 "Test.java",58 "import org.junit.runner.RunWith;",59 "import org.junit.runners.Parameterized;",60 "import org.junit.runners.Parameterized.Parameter;",61 "@RunWith(Parameterized.class)",62 "public class Test {",63 " @Parameter public int foo;",64 "}")65 .doTest();66 }67 @Test68 public void noParameters_noFinding() {69 helper70 .addSourceLines(71 "Test.java",72 "import org.junit.runner.RunWith;",73 "import org.junit.runners.JUnit4;",74 "@RunWith(JUnit4.class)",75 "public class Test {",...
Source:PracUseParametersRunnerFactory.java
1package junit4.v4_12;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.junit.runner.Runner;5import org.junit.runners.Parameterized;6import org.junit.runners.Parameterized.Parameter;7import org.junit.runners.Parameterized.Parameters;8import org.junit.runners.Parameterized.UseParametersRunnerFactory;9import org.junit.runners.model.InitializationError;10import org.junit.runners.parameterized.BlockJUnit4ClassRunnerWithParameters;11import org.junit.runners.parameterized.ParametersRunnerFactory;12import org.junit.runners.parameterized.TestWithParameters;13import java.util.Arrays;14import java.util.List;15/**16 * {@link UseParametersRunnerFactory} ãç¡çç¢ç使ã£ã¦ã¿ãã17 *18 * @author irof19 */20@RunWith(Parameterized.class)21@UseParametersRunnerFactory(PracUseParametersRunnerFactory.FriendlyRunner.Factory.class)22public class PracUseParametersRunnerFactory {23 /**24 * ãã©ã¡ã¼ã¿ãä¸ã¤ã®æã¯åç´ãªãªã¹ãã® <code>@parameters</code> ã¨25 * åä¸ã® <code>@Parameter</code> ãã£ã¼ã«ãã§è¯ããªã£ãã26 */27 @Parameters28 public static List<String> data() {29 return Arrays.asList("A", "B", "C");30 }31 @Parameter32 public String arg;33 @Test34 public void test() throws Exception {...
Source:IsolatedParametersRunnerFactory.java
...17import org.junit.runners.parameterized.ParametersRunnerFactory;18import org.junit.runners.parameterized.TestWithParameters;19/**20 * {@link ParametersRunnerFactory} for21 * {@link org.junit.runners.Parameterized.UseParametersRunnerFactory UseParametersRunnerFactory} annotation22 * to run tests with parameters in a separate ClassLoader.23 *24 * @see Isolated25 */26public class IsolatedParametersRunnerFactory implements ParametersRunnerFactory {27 @Override28 public Runner createRunnerForTestWithParameters(TestWithParameters test) throws InitializationError {29 return new IsolatedParameterizedRunner(test);30 }31 private static class IsolatedParameterizedRunner extends BlockJUnit4ClassRunnerWithParameters {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:ClassificationRunnerWithParametersFactory.java
...14 *****************************************************************************/15package org.eclipse.papyrus.junit.framework.classification;16import org.junit.runner.RunWith;17import org.junit.runner.Runner;18import org.junit.runners.Parameterized;19import org.junit.runners.Parameterized.UseParametersRunnerFactory;20import org.junit.runners.model.InitializationError;21import org.junit.runners.parameterized.ParametersRunnerFactory;22import org.junit.runners.parameterized.TestWithParameters;23/**24 * Factory for classification-sensitive parameterized test suites.25 * Specify this factory in the {@literal @}{@link UseParametersRunnerFactory}26 * annotation on your <tt>{@literal @}{@link RunWith}({@link Parameterized}.class)</tt>27 * test class to support the classfication and condition annotations of the Papyrus28 * test framework.29 * 30 * @see Parameterized31 * @see UseParametersRunnerFactory32 * @since 1.233 */34public class ClassificationRunnerWithParametersFactory implements ParametersRunnerFactory {35 public ClassificationRunnerWithParametersFactory() {36 super();37 }38 @Override39 public Runner createRunnerForTestWithParameters(TestWithParameters test) throws InitializationError {40 return new ClassificationRunnerWithParameters(test);41 }42}...
Source:AllRunnersTests.java
2import org.junit.runner.RunWith;3import org.junit.runners.Suite;4import org.junit.runners.Suite.SuiteClasses;5import org.junit.runners.model.AllModelTests;6import org.junit.runners.parameterized.AllParameterizedTests;7@RunWith(Suite.class)8@SuiteClasses({9 AllModelTests.class,10 AllParameterizedTests.class,11 RuleContainerTest.class,12 CustomBlockJUnit4ClassRunnerTest.class13})14public class AllRunnersTests {15}...
Parameterized
Using AI Code Generation
1import static org.junit.Assert.assertEquals;2import java.util.Arrays;3import java.util.Collection;4import org.junit.Test;5import org.junit.runner.RunWith;6import org.junit.runners.Parameterized;7import org.junit.runners.Parameterized.Parameters;8@RunWith(Parameterized.class)9public class TestParameterized {10 private int input;11 private int expected;12 public TestParameterized(int input, int expected) {13 this.input = input;14 this.expected = expected;15 }16 public static Collection<Object[]> data() {17 Object[][] data = new Object[][] {{1,2}, {5,6}, {121,122}};18 return Arrays.asList(data);19 }20 public void test() {21 assertEquals(expected, new MyClass().addOne(input));22 }23}24class MyClass {25 public int addOne(int x) {26 return x+1;27 }28}
Parameterized
Using AI Code Generation
1package com.journaldev.junit;2import org.junit.Test;3import org.junit.runner.RunWith;4import org.junit.runners.Parameterized;5import org.junit.runners.Parameterized.Parameters;6import java.util.Arrays;7import java.util.Collection;8import static org.junit.Assert.assertEquals;9@RunWith(Parameterized.class)10public class TestParameterized {11 private int number1;12 private int number2;13 private int expected;14 public TestParameterized(int number1, int number2, int expected) {15 this.number1 = number1;16 this.number2 = number2;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 }, { 11, 9, 20 } };21 return Arrays.asList(data);22 }23 public void testAdd() {24 assertEquals(expected, new Calculator().add(number1, number2));25 }26}
Parameterized
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.util.Arrays;6import java.util.Collection;7@RunWith(Parameterized.class)8public class TestWithParameters {9 private int number;10 public TestWithParameters(int number) {11 this.number = number;12 }13 public static Collection<Object[]> data() {14 Object[][] data = new Object[][] { { 1 }, { 2 }, { 3 }, { 4 } };15 return Arrays.asList(data);16 }17 public void test() {18 System.out.println("Parameterized Number is : " + number);19 }20}
Parameterized
Using AI Code Generation
1@RunWith(Parameterized.class)2public class TestClass {3 private int input;4 private int expected;5 public TestClass(int input, int expected) {6 this.input = input;7 this.expected = expected;8 }9 public static Collection<Object[]> data() {10 return Arrays.asList(new Object[][] {11 { 1, 2 },12 { 2, 4 },13 { 8, 16 }14 });15 }16 public void test() {17 assertEquals(expected, new MyClass().doubleTheNumber(input));18 }19}20public class MyClass {21 public int doubleTheNumber(int number) {22 return number * 2;23 }24}25OK (1 test)
Parameterized
Using AI Code Generation
1@RunWith(Parameterized.class)2public class TestParameterized {3 private int number;4 public TestParameterized(int number) {5 this.number = number;6 }7 public static Collection<Object[]> data() {8 Object[][] data = new Object[][] { { 1 }, { 2 }, { 3 }, { 4 }, { 5 } };9 return Arrays.asList(data);10 }11 public void test() {12 assertTrue(number > 0 && number < 6);13 }14}
Parameterized
Using AI Code Generation
1@RunWith(Parameterized.class)2public class TestParameterized {3 private String expected;4 private String actual;5 public TestParameterized(String expected, String actual) {6 this.expected = expected;7 this.actual = actual;8 }9 public static Collection<String[]> getTestParameters() {10 return Arrays.asList(new String[][] {11 {"Hello", "Hello"},12 {"World", "World"}13 });14 }15 public void test() {16 assertEquals(expected, actual);17 }18}
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