How to use ClassloaderWrapper class of org.powermock.core.classloader package

Best Powermock code snippet using org.powermock.core.classloader.ClassloaderWrapper

Source:PowerMockitoCore.java

...26import org.powermock.api.mockito.internal.mockcreation.DefaultMockCreator;27import org.powermock.api.mockito.internal.stubbing.PowerMockCallRealMethod;28import org.powermock.api.mockito.internal.verification.DefaultConstructorArgumentsVerification;29import org.powermock.core.MockRepository;30import org.powermock.core.classloader.ClassloaderWrapper;31import org.powermock.core.spi.NewInvocationControl;32import org.powermock.reflect.Whitebox;33import java.lang.reflect.Method;34import java.util.concurrent.Callable;35import static org.powermock.utils.Asserts.assertNotNull;36public class PowerMockitoCore {37    38    private static final PowerMockCallRealMethod POWER_MOCK_CALL_REAL_METHOD = new PowerMockCallRealMethod();39    40    private static final String NO_OBJECT_CREATION_ERROR_MESSAGE_TEMPLATE = "No instantiation of class %s was recorded during the test. Note that only expected object creations (e.g. those using whenNew(..)) can be verified.";41    42    public PowerMockitoStubber doAnswer(final Answer answer) {43        return doAnswer(new Callable<Stubber>() {44            @Override45            public Stubber call() throws Exception {46                return Mockito.doAnswer(answer);47            }48        });49    }50    51    public PowerMockitoStubber doThrow(final Throwable toBeThrown) {52        return doAnswer(new Callable<Stubber>() {53            @Override54            public Stubber call() throws Exception {55                return Mockito.doThrow(toBeThrown);56            }57        });58    }59    60    public PowerMockitoStubber doCallRealMethod() {61        return doAnswer(new Callable<Stubber>() {62            @Override63            public Stubber call() throws Exception {64                return Mockito.doCallRealMethod();65            }66        });67    }68    69    public PowerMockitoStubber doNothing() {70        return doAnswer(new Callable<Stubber>() {71            @Override72            public Stubber call() throws Exception {73                return Mockito.doNothing();74            }75        });76    }77    78    public PowerMockitoStubber doReturn(final Object toBeReturned) {79        return doAnswer(new Callable<Stubber>() {80            @Override81            public Stubber call() throws Exception {82                return Mockito.doReturn(toBeReturned);83            }84        });85    }86    87    public PowerMockitoStubber doAnswer(final Object toBeReturned, final Object... othersToBeReturned) {88        return doAnswer(new Callable<Stubber>() {89            @Override90            public Stubber call() throws Exception {91                return Mockito.doReturn(toBeReturned, othersToBeReturned);92            }93        });94    }95    96    public <T> DefaultConstructorArgumentsVerification<T> verifyNew(final Class<T> mock, final VerificationMode mode) {97        assertNotNull(mock, "Class to verify cannot be null");98        assertNotNull(mode, "Verify mode cannot be null");99        @SuppressWarnings("unchecked") MockitoNewInvocationControl<T> invocationControl = (MockitoNewInvocationControl<T>) MockRepository.getNewInstanceControl(mock);100    101        assertNotNull(invocationControl, String.format(NO_OBJECT_CREATION_ERROR_MESSAGE_TEMPLATE, Whitebox.getType(mock).getName()));102    103        invocationControl.verify(mode);104        //noinspection unchecked105        return new DefaultConstructorArgumentsVerification<T>((NewInvocationControl<T>) invocationControl, mock);106    }107    108    public <T> T spy(final T object) {109        MockSettings mockSettings = Mockito.withSettings()110                                           .spiedInstance(object)111                                           .defaultAnswer(POWER_MOCK_CALL_REAL_METHOD);112        //noinspection unchecked113        return DefaultMockCreator.mock((Class<T>) Whitebox.getType(object), false, true, object, mockSettings, (Method[]) null);114    }115    116    private PowerMockitoStubber doAnswer(final Callable<Stubber> callable) {117        final Stubber stubber = ClassloaderWrapper.runWithClass(callable);118        return new PowerMockitoStubberImpl(stubber);119    }120}...

Source:ClassloaderWrapper.java

...19import org.powermock.core.InvocationException;20import java.util.concurrent.Callable;21// We change the context classloader to the current CL in order for the Mockito22// framework to load it's plugins (such as MockMaker) correctly.23public class ClassloaderWrapper {24    25    public static void runWithClass(final Runnable runnable) {26        runWithClassClassLoader(ClassloaderWrapper.class.getClassLoader(), runnable);27    }28    29    public static void runWithClassClassLoader(final ClassLoader classLoader, final Runnable runnable) {30        final ClassLoader originalCL = Thread.currentThread().getContextClassLoader();31        Thread.currentThread().setContextClassLoader(classLoader);32        try {33            runnable.run();34        } finally {35            Thread.currentThread().setContextClassLoader(originalCL);36        }37    }38    39    public static <V> V runWithClass(final Callable<V> callable) {40        return runWithClassClassLoader(ClassloaderWrapper.class.getClassLoader(), callable);41    }42    43    public static <V> V runWithClassClassLoader(final ClassLoader classLoader, final Callable<V> callable) {44        final ClassLoader originalCL = Thread.currentThread().getContextClassLoader();45        Thread.currentThread().setContextClassLoader(classLoader);46        try {47            return callable.call();48        } catch (Exception e) {49            throw new InvocationException(e);50        } finally {51            Thread.currentThread().setContextClassLoader(originalCL);52        }53    }54}...

ClassloaderWrapper

Using AI Code Generation

1package com.powermock.examples;2import java.lang.reflect.Method;3import org.powermock.core.classloader.ClassLoaderWrapper;4import org.powermock.core.classloader.MockClassLoader;5{6    public static void main(String[] args) throws Exception7    {8        ClassLoaderWrapper wrapper = new ClassLoaderWrapper();9        Class<?> clazz = wrapper.loadClass("com.powermock.examples.MyClass");10        Object obj = clazz.newInstance();11        Method method = clazz.getMethod("method");12        method.invoke(obj);13    }14}15package com.powermock.examples;16import java.lang.reflect.Method;17import org.powermock.core.classloader.ClassLoaderWrapper;18import org.powermock.core.classloader.MockClassLoader;19{20    public static void main(String[] args) throws Exception21    {22        MockClassLoader mockClassLoader = new MockClassLoader();23        ClassLoaderWrapper wrapper = new ClassLoaderWrapper(mockClassLoader);24        Class<?> clazz = wrapper.loadClass("com.powermock.examples.MyClass");25        Object obj = clazz.newInstance();26        Method method = clazz.getMethod("method");27        method.invoke(obj);28    }29}30package com.powermock.examples;31import java.lang.reflect.Method;32import org.powermock.core.classloader.ClassLoaderRepository;33{34    public static void main(String[] args) throws Exception35    {36        ClassLoaderRepository repository = ClassLoaderRepository.getRepository();37        Class<?> clazz = repository.loadClass("com.powermock.examples.MyClass");38        Object obj = clazz.newInstance();39        Method method = clazz.getMethod("method");40        method.invoke(obj);41    }42}43package com.powermock.examples;44import java.lang.reflect.Method;45import org.powermock.core.classloader.ClassLoaderRepository;46{47    public static void main(String[] args) throws Exception48    {49        ClassLoaderRepository repository = ClassLoaderRepository.getRepository();50        Class<?> clazz = repository.loadClass("com.powermock.examples.MyClass");51        Object obj = clazz.newInstance();52        Method method = clazz.getMethod("method");53        method.invoke(obj);54    }55}

ClassloaderWrapper

Using AI Code Generation

1ClassloaderWrapper wrapper = new ClassloaderWrapper();2Class<?> clazz = wrapper.loadClass("com.example.ClassToTest");3Object object = clazz.newInstance();4Method method = clazz.getDeclaredMethod("methodToTest");5method.invoke(object);6ClassloaderExcluder excluder = new ClassloaderExcluder();7excluder.excludePackage("org.powermock");8Class<?> clazz = excluder.loadClass("com.example.ClassToTest");9Object object = clazz.newInstance();10Method method = clazz.getDeclaredMethod("methodToTest");11method.invoke(object);

ClassloaderWrapper

Using AI Code Generation

1Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");2Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");3Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");4Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");5Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");6Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");7Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");8Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");9Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");10Class<?> clazz = ClassloaderWrapper.loadClass("org.powermock.core.classloader.ClassloaderWrapper");

ClassloaderWrapper

Using AI Code Generation

1public class 4 {2    public static void main(String[] args) throws Exception {3        ClassLoaderWrapper wrapper = new ClassLoaderWrapper(Class.forName("4").getClassLoader());4        Class<?> clazz = wrapper.loadClass("4");5        Method method = clazz.getMethod("main", String[].class);6        method.invoke(null, new Object[]{null});7    }8}9public class 4 {10    public static void main(String[] args) {11        System.out.println("Hello World!");12    }13}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.