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How to use AnnotationValidator class of org.junit.validator package

Best junit code snippet using org.junit.validator.AnnotationValidator

Source:AnnotationValidatorFactoryTest.java

...5import java.lang.annotation.Annotation;6import static org.hamcrest.core.Is.is;7import static org.hamcrest.core.IsInstanceOf.instanceOf;8import static org.junit.Assert.assertThat;9public class AnnotationValidatorFactoryTest {10    @Rule11    public ExpectedException exception = ExpectedException.none();12    @Test13    public void createAnnotationValidator() {14        ValidateWith validateWith = SampleTestWithValidator.class.getAnnotation(ValidateWith.class);15        AnnotationValidator annotationValidator = new AnnotationValidatorFactory().createAnnotationValidator(validateWith);16        assertThat(annotationValidator, is(instanceOf(Validator.class)));17    }18    @Test19    public void exceptionWhenAnnotationWithNullClassIsPassedIn() {20        exception.expect(IllegalArgumentException.class);21        exception.expectMessage("Can't create validator, value is null in " +22                "annotation org.junit.validator.AnnotationValidatorFactoryTest$ValidatorWithNullValue");23        new AnnotationValidatorFactory().createAnnotationValidator(new ValidatorWithNullValue());24    }25    public static class ValidatorWithNullValue implements ValidateWith {26        public Class<? extends AnnotationValidator> value() {27            return null;28        }29        public Class<? extends Annotation> annotationType() {30            return ValidateWith.class;31        }32    }33    @ValidateWith(value = Validator.class)34    public static class SampleTestWithValidator {35    }36    public static class Validator extends AnnotationValidator {37    }38    @Test39    public void exceptionWhenAnnotationValidatorCantBeCreated() {40        ValidateWith validateWith = SampleTestWithValidatorThatThrowsException.class.getAnnotation(ValidateWith.class);41        exception.expect(RuntimeException.class);42        exception.expectMessage("Exception received when creating AnnotationValidator class " +43                "org.junit.validator.AnnotationValidatorFactoryTest$ValidatorThatThrowsException");44        new AnnotationValidatorFactory().createAnnotationValidator(validateWith);45    }46    @ValidateWith(value = ValidatorThatThrowsException.class)47    public static class SampleTestWithValidatorThatThrowsException {48    }49    public static class ValidatorThatThrowsException extends AnnotationValidator {50        public ValidatorThatThrowsException() throws InstantiationException {51            throw new InstantiationException("Simulating exception in test");52        }53    }54}...

Source:PracAnnotationValidator.java

1package junit4.v4_12;2import org.junit.Test;3import org.junit.runners.model.TestClass;4import org.junit.validator.AnnotationValidator;5import org.junit.validator.ValidateWith;6import java.lang.annotation.ElementType;7import java.lang.annotation.Retention;8import java.lang.annotation.RetentionPolicy;9import java.lang.annotation.Target;10import java.util.Collections;11import java.util.List;12/**13 * {@link org.junit.validator.AnnotationValidator} ãç¡çç¢çä½¿ã£ã¦ã¿ãã14 *15 * @author irof16 */17@PracAnnotationValidator.MyAnnotation18public class PracAnnotationValidator {19    // ã³ã¡ã³ãå¤ãããAnnotationValidatorã§è¨å®ããä¾å¤ãåºã¦ãã20    // Object hoge;21    @Test22    public void hoge() throws Exception {23    }24    /**25     * ãã¹ãã¯ã©ã¹ãFieldãæã£ã¦ãããªãã¨è¨ãè¬ã®Validator26     */27    public static class NoFieldValidator extends AnnotationValidator {28        @Override29        public List<Exception> validateAnnotatedClass(TestClass testClass) {30            if (testClass.getJavaClass().getDeclaredFields().length > 0) {31                return Collections.singletonList(new Exception("ãã£ã¼ã«ãããããï¼"));32            }33            return super.validateAnnotatedClass(testClass);34        }35    }36    @Retention(RetentionPolicy.RUNTIME)37    @ValidateWith(NoFieldValidator.class)38    @Target(ElementType.TYPE)39    @interface MyAnnotation {40    }41}...

Source:AnnotationValidatorFactory.java

...4 * Creates instances of Annotation Validators.5 *6 * @since 4.127 */8public class AnnotationValidatorFactory {9    private static final ConcurrentHashMap<ValidateWith, AnnotationValidator> VALIDATORS_FOR_ANNOTATION_TYPES =10            new ConcurrentHashMap<ValidateWith, AnnotationValidator>();11    /**12     * Creates the AnnotationValidator specified by the value in13     * {@link org.junit.validator.ValidateWith}. Instances are14     * cached.15     *16     * @return An instance of the AnnotationValidator.17     *18     * @since 4.1219     */20    public AnnotationValidator createAnnotationValidator(ValidateWith validateWithAnnotation) {21        AnnotationValidator validator = VALIDATORS_FOR_ANNOTATION_TYPES.get(validateWithAnnotation);22        if (validator != null) {23            return validator;24        }25        Class<? extends AnnotationValidator> clazz = validateWithAnnotation.value();26        try {27            AnnotationValidator annotationValidator = clazz.newInstance();28            VALIDATORS_FOR_ANNOTATION_TYPES.putIfAbsent(validateWithAnnotation, annotationValidator);29            return VALIDATORS_FOR_ANNOTATION_TYPES.get(validateWithAnnotation);30        } catch (Exception e) {31            throw new RuntimeException("Exception received when creating AnnotationValidator class " + clazz.getName(), e);32        }33    }34}...

AnnotationValidator

Using AI Code Generation

1import org.junit.runner.RunWith;2import org.junit.runners.Suite;3import org.junit.runners.Suite.SuiteClasses;4import org.junit.validator.AnnotationValidator;5@RunWith(Suite.class)6@SuiteClasses({AnnotationValidator.class})7public class SuiteTest {8}9public List<Exception> validateAnnotatedMethod(AnnotatedMethod method)10public List<Exception> validateAnnotatedClass(AnnotatedClass testClass)11public List<Exception> validateAnnotatedConstructor(AnnotatedConstructor constructor)12public List<Exception> validateAnnotatedField(AnnotatedField field)

AnnotationValidator

Using AI Code Generation

1import org.junit.validator.AnnotationValidator;2import org.junit.validator.ValidateWith;3import org.junit.runners.model.FrameworkMethod;4import org.junit.runners.model.TestClass;5public class MyCustomValidator extends AnnotationValidator {6    public MyCustomValidator() {7        super(ValidateWith.class);8    }9    public void validateAnnotatedMethod(FrameworkMethod method) {10    }11    public void validateAnnotatedClass(TestClass testClass) {12    }13}14import org.junit.validator.AnnotationValidatorFactory;15import org.junit.validator.ValidateWith;16public class MyCustomValidatorFactory implements AnnotationValidatorFactory {17    public MyCustomValidatorFactory() {18        super();19    }20    public AnnotationValidator createAnnotationValidator() {21        return new MyCustomValidator();22    }23    public Class<? extends Annotation> getAnnotationType() {24        return ValidateWith.class;25    }26}27import org.junit.validator.CustomValidator;28import org.junit.validator.ValidateWith;29public class MyCustomValidator extends CustomValidator {30    public MyCustomValidator() {31        super(ValidateWith.class);32    }33    public void validateAnnotatedMethod(FrameworkMethod method) {34    }35    public void validateAnnotatedClass(TestClass testClass) {36    }37}38import org.junit.validator.CustomValidatorFactory;39import org.junit.validator.ValidateWith;40public class MyCustomValidatorFactory implements CustomValidatorFactory {41    public MyCustomValidatorFactory() {42        super();43    }44    public CustomValidator createCustomValidator() {45        return new MyCustomValidator();46    }47    public Class<? extends Annotation> getAnnotationType() {48        return ValidateWith.class;49    }50}51import org.junit.validator.TestClassValidator;52import org.junit.validator.ValidateWith;53public class MyTestClassValidator extends TestClassValidator {54    public MyTestClassValidator() {55        super(ValidateWith.class);56    }57    public void validateTestClass(TestClass testClass) {58    }59}60import org.junit.validator.TestClassValidatorFactory;61import org.junit.validator.ValidateWith;62public class MyTestClassValidatorFactory implements TestClassValidatorFactory {63    public MyTestClassValidatorFactory() {

AnnotationValidator

Using AI Code Generation

1public class AnnotationValidatorTest {2    public static void main(String[] args) {3        AnnotationValidator validator = new AnnotationValidator();4        Class clazz = TestClass.class;5        System.out.println("Annotations of " + clazz.getName() + " are valid: " + validator.validateAnnotatedClass(clazz));6    }7}

AnnotationValidator

Using AI Code Generation

1import org.junit.Test;2import org.junit.validator.AnnotationValidator;3import org.junit.validator.ValidateWith;4public class TestClass {5    public void test() {6    }7}8public class CustomAnnotationValidator extends AnnotationValidator {9    public void validateTestClass(AnnotatedElement element) {10    }11}12@ValidateWith(CustomAnnotationValidator.class)13public class TestClass {14    public void test() {15    }16}17@ValidateWith(CustomAnnotationValidator.class)18public class TestClass {19    public void test() {20    }21}22@ValidateWith(CustomAnnotationValidator.class)23public class TestClass {24    public void test() {25    }26}27@ValidateWith(CustomAnnotationValidator.class)28public class TestClass {29    public void test() {30    }31}32@ValidateWith(CustomAnnotationValidator.class)33public class TestClass {34    public void test() {35    }36}37@ValidateWith(CustomAnnotationValidator.class)38public class TestClass {39    public void test() {40    }41}42@ValidateWith(CustomAnnotationValidator.class)43public class TestClass {44    public void test() {45    }46}47@ValidateWith(CustomAnnotationValidator.class)48public class TestClass {49    public void test() {50    }51}52@ValidateWith(CustomAnnotationValidator.class)53public class TestClass {54    public void test() {55    }56}

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Importance of Unit testing - Learn why Unit testing is essential during the development phase to identify bugs and errors.
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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.