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How to use MockClassLoader method of org.powermock.core.classloader.MockClassLoader class

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

Source:AbstractTestSuiteChunkerImpl.java

...24import java.util.LinkedList;25import java.util.List;26import java.util.Set;27import java.util.Map.Entry;28import org.powermock.core.classloader.MockClassLoader;29import org.powermock.core.classloader.annotations.MockPolicy;30import org.powermock.core.classloader.annotations.PowerMockListener;31import org.powermock.core.classloader.annotations.PrepareEverythingForTest;32import org.powermock.core.classloader.annotations.PrepareForTest;33import org.powermock.core.classloader.annotations.PrepareOnlyThisForTest;34import org.powermock.core.classloader.annotations.SuppressStaticInitializationFor;35import org.powermock.core.classloader.interfaces.IPrepareEverythingForTest;36import org.powermock.core.spi.PowerMockPolicy;37import org.powermock.core.spi.PowerMockTestListener;38import org.powermock.core.transformers.MockTransformer;39import org.powermock.core.transformers.impl.MainMockTransformer;40import org.powermock.reflect.Whitebox;41import org.powermock.reflect.proxyframework.RegisterProxyFramework;42import org.powermock.tests.utils.ArrayMerger;43import org.powermock.tests.utils.IgnorePackagesExtractor;44import org.powermock.tests.utils.TestChunk;45import org.powermock.tests.utils.TestClassesExtractor;46import org.powermock.tests.utils.TestSuiteChunker;47/**48 * Abstract base class for test suite chunking, i.e. a suite is chunked into49 * several smaller pieces which are ran with different classloaders. A chunk is50 * defined by the {@link PrepareForTest} annotation. This to make sure that you51 * can byte-code manipulate classes in tests without impacting on other tests.52 * 53 */54public abstract class AbstractTestSuiteChunkerImpl<T> implements TestSuiteChunker {55    private static final int DEFAULT_TEST_LISTENERS_SIZE = 1;56    protected static final int NOT_INITIALIZED = -1;57    private static final int INTERNAL_INDEX_NOT_FOUND = NOT_INITIALIZED;58    protected final TestClassesExtractor prepareForTestExtractor = new PrepareForTestExtractorImpl();59    protected final TestClassesExtractor suppressionExtractor = new StaticConstructorSuppressExtractorImpl();60    private final IgnorePackagesExtractor ignorePackagesExtractor = new PowerMockIgnorePackagesExtractorImpl();61    private final ArrayMerger arrayMerger = new ArrayMergerImpl();62    private final Class<?>[] testClasses;63    /*64     * The classes listed in this set has been chunked and its delegates has65     * been created.66     */67    protected final Set<Class<?>> delegatesCreatedForTheseClasses = new LinkedHashSet<Class<?>>();68    // A list of junit delegates.69    protected final List<T> delegates = new LinkedList<T>();70    /*71     * Maps the list of test indexes that is assigned to a specific test suite72     * index.73     */74    protected final LinkedHashMap<Integer, List<Integer>> testAtDelegateMapper = new LinkedHashMap<Integer, List<Integer>>();75    private int currentTestIndex = NOT_INITIALIZED;76    /*77     * Maps between a specific class and a map of test methods loaded by a78     * specific mock class loader.79     */80    private final List<TestCaseEntry> internalSuites;81    protected volatile int testCount = NOT_INITIALIZED;82    protected AbstractTestSuiteChunkerImpl(Class<?> testClass) throws Exception {83        this(new Class[] { testClass });84    }85    protected AbstractTestSuiteChunkerImpl(Class<?>... testClasses) throws Exception {86        this.testClasses = testClasses;87        internalSuites = new LinkedList<TestCaseEntry>();88        for (Class<?> clazz : testClasses) {89            chunkClass(clazz);90        }91    }92    protected Object getPowerMockTestListenersLoadedByASpecificClassLoader(Class<?> clazz, ClassLoader classLoader) {93        try {94            int defaultListenerSize = DEFAULT_TEST_LISTENERS_SIZE;95            Class<?> annotationEnablerClass = null;96            try {97                annotationEnablerClass = Class.forName("org.powermock.api.extension.listener.AnnotationEnabler", false, classLoader);98            } catch (ClassNotFoundException e) {99                // Annotation enabler wasn't found in class path100                defaultListenerSize = 0;101            }102            registerProxyframework(classLoader);103            final Class<?> powerMockTestListenerType = Class.forName(PowerMockTestListener.class.getName(), false, classLoader);104            Object testListeners = null;105            if (clazz.isAnnotationPresent(PowerMockListener.class)) {106                PowerMockListener annotation = clazz.getAnnotation(PowerMockListener.class);107                final Class<? extends PowerMockTestListener>[] powerMockTestListeners = annotation.value();108                if (powerMockTestListeners.length > 0) {109                    testListeners = Array.newInstance(powerMockTestListenerType, powerMockTestListeners.length + defaultListenerSize);110                    for (int i = 0; i < powerMockTestListeners.length; i++) {111                        String testListenerClassName = powerMockTestListeners[i].getName();112                        final Class<?> listenerTypeLoadedByClassLoader = Class.forName(testListenerClassName, false, classLoader);113                        Array.set(testListeners, i, Whitebox.newInstance(listenerTypeLoadedByClassLoader));114                    }115                }116            } else {117                testListeners = Array.newInstance(powerMockTestListenerType, defaultListenerSize);118            }119            // Add default annotation enabler listener120            if (annotationEnablerClass != null) {121                Array.set(testListeners, Array.getLength(testListeners) - 1, Whitebox.newInstance(annotationEnablerClass));122            }123            return testListeners;124        } catch (ClassNotFoundException e) {125            throw new IllegalStateException("PowerMock internal error: Failed to load class.", e);126        }127    }128    private void registerProxyframework(ClassLoader classLoader) {129        Class<?> proxyFrameworkClass = null;130        try {131            proxyFrameworkClass = Class.forName("org.powermock.api.extension.proxyframework.ProxyFrameworkImpl", false, classLoader);132        } catch (ClassNotFoundException e) {133            throw new IllegalStateException(134                    "Extension API internal error: org.powermock.api.extension.proxyframework.ProxyFrameworkImpl could not be located in classpath.");135        }136        Class<?> proxyFrameworkRegistrar = null;137        try {138            proxyFrameworkRegistrar = Class.forName(RegisterProxyFramework.class.getName(), false, classLoader);139        } catch (ClassNotFoundException e) {140            // Should never happen141            throw new RuntimeException(e);142        }143        try {144            Whitebox.invokeMethod(proxyFrameworkRegistrar, "registerProxyFramework", Whitebox.newInstance(proxyFrameworkClass));145        } catch (RuntimeException e) {146            throw e;147        } catch (Exception e) {148            throw new RuntimeException(e);149        }150    }151    protected void chunkClass(final Class<?> testClass) throws Exception {152        ClassLoader defaultMockLoader = null;153        final String[] ignorePackages = ignorePackagesExtractor.getPackagesToIgnore(testClass);154        if (testClass.isAnnotationPresent(PrepareEverythingForTest.class) || IPrepareEverythingForTest.class.isAssignableFrom(testClass)) {155            defaultMockLoader = createNewClassloader(testClass, new String[] { MockClassLoader.MODIFY_ALL_CLASSES }, ignorePackages);156        } else {157            final String[] prepareForTestClasses = prepareForTestExtractor.getTestClasses(testClass);158            final String[] suppressStaticClasses = suppressionExtractor.getTestClasses(testClass);159            defaultMockLoader = createNewClassloader(testClass, arrayMerger.mergeArrays(String.class, prepareForTestClasses, suppressStaticClasses),160                    ignorePackages);161            if (defaultMockLoader instanceof MockClassLoader) {162                // Test class should always be prepared163                ((MockClassLoader) defaultMockLoader).addClassesToModify(testClass.getName());164            }165        }166        registerProxyframework(defaultMockLoader);167        List<Method> currentClassloaderMethods = new LinkedList<Method>();168        // Put the first suite in the map of internal suites.169        TestChunk defaultTestChunk = new TestChunkImpl(defaultMockLoader, currentClassloaderMethods);170        List<TestChunk> testChunks = new LinkedList<TestChunk>();171        testChunks.add(defaultTestChunk);172        internalSuites.add(new TestCaseEntry(testClass, testChunks));173        initEntries(internalSuites);174        /*175         * If we don't have any test that should be executed by the default176         * class loader remove it to avoid duplicate test print outs.177         */178        if (currentClassloaderMethods.isEmpty()) {179            internalSuites.get(0).getTestChunks().remove(0);180        }181    }182    public ClassLoader createNewClassloader(Class<?> testClass, final String[] classesToLoadByMockClassloader, final String[] packagesToIgnore) {183        ClassLoader mockLoader = null;184        if ((classesToLoadByMockClassloader == null || classesToLoadByMockClassloader.length == 0) && !hasMockPolicyProvidedClasses(testClass)) {185            mockLoader = Thread.currentThread().getContextClassLoader();186        } else {187            List<MockTransformer> mockTransformerChain = new ArrayList<MockTransformer>();188            final MainMockTransformer mainMockTransformer = new MainMockTransformer();189            mockTransformerChain.add(mainMockTransformer);190            mockLoader = AccessController.doPrivileged(new PrivilegedAction<MockClassLoader>() {191                public MockClassLoader run() {192                    return new MockClassLoader(classesToLoadByMockClassloader, packagesToIgnore);193                }194            });195            MockClassLoader mockClassLoader = (MockClassLoader) mockLoader;196            mockClassLoader.setMockTransformerChain(mockTransformerChain);197            if (!mockClassLoader.shouldModifyAll()) {198                // Always prepare test class for testing if not all classes are199                // prepared200                mockClassLoader.addClassesToModify(testClass.getName());201            }202            new MockPolicyInitializerImpl(testClass).initialize(mockLoader);203        }204        return mockLoader;205    }206    /**207     * {@inheritDoc}208     */209    public void createTestDelegators(Class<?> testClass, List<TestChunk> chunks) throws Exception {210        for (TestChunk chunk : chunks) {211            ClassLoader classLoader = chunk.getClassLoader();212            List<Method> methodsToTest = chunk.getTestMethodsToBeExecutedByThisClassloader();213            T runnerDelegator = createDelegatorFromClassloader(classLoader, testClass, methodsToTest);214            delegates.add(runnerDelegator);215        }216        delegatesCreatedForTheseClasses.add(testClass);217    }218    protected abstract T createDelegatorFromClassloader(ClassLoader classLoader, Class<?> testClass, final List<Method> methodsToTest)219            throws Exception;220    private void initEntries(List<TestCaseEntry> entries) throws Exception {221        for (TestCaseEntry testCaseEntry : entries) {222            final Class<?> testClass = testCaseEntry.getTestClass();223            Method[] allMethods = testClass.getMethods();224            for (Method method : allMethods) {225                if (shouldExecuteTestForMethod(testClass, method)) {226                    currentTestIndex++;227                    if (hasChunkAnnotation(method)) {228                        LinkedList<Method> methodsInThisChunk = new LinkedList<Method>();229                        methodsInThisChunk.add(method);230                        final String[] staticSuppressionClasses = getStaticSuppressionClasses(testClass, method);231                        ClassLoader mockClassloader = null;232                        if (method.isAnnotationPresent(PrepareEverythingForTest.class)) {233                            mockClassloader = createNewClassloader(testClass, new String[] { MockClassLoader.MODIFY_ALL_CLASSES },234                                    ignorePackagesExtractor.getPackagesToIgnore(testClass));235                        } else {236                            mockClassloader = createNewClassloader(testClass, arrayMerger.mergeArrays(String.class, prepareForTestExtractor237                                    .getTestClasses(method), staticSuppressionClasses), ignorePackagesExtractor.getPackagesToIgnore(testClass));238                        }239                        TestChunkImpl chunk = new TestChunkImpl(mockClassloader, methodsInThisChunk);240                        testCaseEntry.getTestChunks().add(chunk);241                        updatedIndexes();242                    } else {243                        testCaseEntry.getTestChunks().get(0).getTestMethodsToBeExecutedByThisClassloader().add(method);244                        // currentClassloaderMethods.add(method);245                        final int currentDelegateIndex = internalSuites.size() - 1;246                        /*247                         * Add this test index to the main junit runner...

Source:MockClassLoaderTest.java

1package dux.org.powermock.core.classloader;23import org.junit.Before;4import org.junit.Test;5import org.powermock.core.classloader.MockClassLoader;67import com.github.docteurdux.test.AbstractTest;89public class MockClassLoaderTest extends AbstractTest {1011	public static class A {12		public String foo() {13			return "foo";14		}15	}1617	@Before18	public void before() {19		requireSources("powermock-core-1.6.4", MockClassLoader.class);20	}2122	@Test23	public void test() throws Exception {24		MockClassLoader mcl = new MockClassLoader(25				new String[] { "dux.org.powermock.core.classloader.MockClassLoaderTest$A" });26		ClassLoader cl = mcl;27		Class<?> clazz = cl.loadClass("dux.org.powermock.core.classloader.MockClassLoaderTest$A");28		Object o = clazz.newInstance();2930	}31}
...

MockClassLoader

Using AI Code Generation

1public class MockClassLoaderTest {2    public static void main(String[] args) throws Exception {3        MockClassLoader mockClassLoader = new MockClassLoader();4        Class<?> clazz = mockClassLoader.loadClass("org.powermock.core.classloader.MockClassLoader");5        System.out.println("class loaded by: " + clazz.getClassLoader());6    }7}8    public void testMockClassLoader() throws Exception {9        final ClassLoader cl = getClass().getClassLoader();10        final Class<?> clazz = new MockClassLoader(cl).loadClass("org.powermock.core.classloader.MockClassLoader");11        assertSame("The class should have been loaded by the MockClassLoader", MockClassLoader.class, clazz);12        assertSame("The class should have been loaded by the MockClassLoader", MockClassLoader.class, clazz.getClassLoader());13    }14    public void testMockClassLoaderWithMockedClass() throws Exception {15        final ClassLoader cl = getClass().getClassLoader();16        final Class<?> clazz = new MockClassLoader(cl).loadClass("org.powermock.core.classloader.MockClassLoader");17        assertSame("The class should have been loaded by the MockClassLoader", MockClassLoader.class, clazz);18        assertSame("The class should have been loaded by the MockClassLoader", MockClassLoader.class, clazz.getClassLoader());19    }20    public void testMockClassLoaderWithMockedClassAndMockedStaticMethod() throws Exception {21        final ClassLoader cl = getClass().getClassLoader();22        final Class<?> clazz = new MockClassLoader(cl).loadClass("org.powermock.core.classloader.MockClassLoader");23        assertSame("The class should have been loaded by the MockClassLoader", MockClassLoader.class, clazz);24        assertSame("The class should have been loaded by the MockClassLoader", MockClassLoader.class, clazz.getClassLoader());25    }26    public void testMockClassLoaderWithMockedClassAndMockedStaticMethodAndMockedConstructor() throws Exception {27        final ClassLoader cl = getClass().getClassLoader();28        final Class<?> clazz = new MockClassLoader(cl).loadClass("org.powermock.core.classloader.MockClassLoader");29        assertSame("The class should have been loaded by the MockClassLoader", MockClassLoader.class, clazz);30        assertSame("The class should have been loaded by the MockClassLoader", MockClassLoader.class, clazz.getClassLoader());31    }

MockClassLoader

Using AI Code Generation

1import org.powermock.core.classloader.MockClassLoader;2public class MockClassLoaderTest {3    public static void main(String[] args) {4        MockClassLoader mockClassLoader = new MockClassLoader();5        mockClassLoader.addMockedClass(4.class);6    }7}8	at org.powermock.core.classloader.MockClassLoader.addMockedClass(MockClassLoader.java:81)9	at MockClassLoaderTest.main(4.java:9)

MockClassLoader

Using AI Code Generation

1import org.powermock.core.classloader.MockClassLoader;2import org.powermock.core.classloader.annotations.PrepareForTest;3@PrepareForTest({ MockClassLoader.class })4public class 4 {5    public static void main(String[] args) throws Exception {6        MockClassLoader mockClassLoader = new MockClassLoader();7        Class<?> clazz = mockClassLoader.loadClass("com.example.TestClass");8        System.out.println(clazz);9    }10}11import org.powermock.core.classloader.MockClassLoader;12import org.powermock.core.classloader.annotations.PrepareForTest;13@PrepareForTest({ MockClassLoader.class })14public class 5 {15    public static void main(String[] args) throws Exception {16        MockClassLoader mockClassLoader = new MockClassLoader();17        Class<?> clazz = mockClassLoader.loadClass("com.example.TestClass", true);18        System.out.println(clazz);19    }20}21import org.powermock.core.classloader.MockClassLoader;22import org.powermock.core.classloader.annotations.PrepareForTest;23@PrepareForTest({ MockClassLoader.class })24public class 6 {25    public static void main(String[] args) throws Exception {26        MockClassLoader mockClassLoader = new MockClassLoader();27        Class<?> clazz = mockClassLoader.loadClass("com.example.TestClass", true,28                getClass().getClassLoader());29        System.out.println(clazz);30    }31}32import org.powermock.core.classloader.MockClassLoader;33import org.powermock.core.classloader.annotations.PrepareForTest;34@PrepareForTest({ MockClassLoader.class })35public class 7 {36    public static void main(String[] args) throws Exception {37        MockClassLoader mockClassLoader = new MockClassLoader();38        Class<?> clazz = mockClassLoader.loadClass("com.example.TestClass", true,39                getClass().getClassLoader(), getClass().getProtectionDomain());40        System.out.println(clazz);41    }42}43import org.powermock.core.classloader.MockClassLoader;44import org

MockClassLoader

Using AI Code Generation

1package org.powermock.core.classloader;2import org.powermock.core.classloader.annotations.PrepareForTest;3@PrepareForTest(MockClassLoader.class)4public class MockClassLoaderTest {5public void testGetMockedClass() throws Exception {6MockClassLoader mockClassLoader = new MockClassLoader();7Class<?> clazz = mockClassLoader.getMockedClass(MockClassLoader.class);8System.out.println(clazz.getName());9}10}

MockClassLoader

Using AI Code Generation

1package com.journaldev.powermock;2import java.lang.reflect.Constructor;3import java.lang.reflect.InvocationTargetException;4import org.powermock.core.classloader.MockClassLoader;5public class MockClassLoaderExample {6	public static void main(String[] args) throws ClassNotFoundException, InstantiationException,7	SecurityException {8		ClassLoader loader = MockClassLoaderExample.class.getClassLoader();9		Class<?> clazz = MockClassLoader.loadClass(loader, "com.journaldev.powermock.MockClass");10		Constructor<?> constructor = clazz.getConstructor();11		MockClass mockClass = (MockClass) constructor.newInstance();12		System.out.println(mockClass.getMessage());13	}14}15package com.journaldev.powermock;16public class MockClass {17	public String getMessage() {18		return "Hello World";19	}20}

MockClassLoader

Using AI Code Generation

1import org.powermock.core.classloader.MockClassLoader;2import java.lang.reflect.Constructor;3import java.lang.reflect.InvocationTargetException;4public class 4 {5public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException {6MockClassLoader mockClassLoader = new MockClassLoader();7Class<?> clazz = mockClassLoader.loadClass("org.powermock.core.classloader.ClassToBeLoaded");8Constructor<?> constructor = clazz.getConstructor();9Object object = constructor.newInstance();10System.out.println(object);11}12}13import org.powermock.core.classloader.MockClassLoader;14import java.lang.reflect.Constructor;15import java.lang.reflect.InvocationTargetException;16public class 5 {17public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException {18MockClassLoader mockClassLoader = new MockClassLoader();19Class<?> clazz = mockClassLoader.loadClass("org.powermock.core.classloader.ClassToBeLoaded");20Constructor<?> constructor = clazz.getConstructor();21Object object = constructor.newInstance();22System.out.println(object);23}24}25import org.powermock.core.classloader.MockClassLoader;26import java.lang.reflect.Constructor;27import java.lang.reflect.InvocationTargetException;28public class 6 {29public static void main(String[] args) throws ClassNotFoundException, NoSuchMethodException, InstantiationException, IllegalAccessException, InvocationTargetException {30MockClassLoader mockClassLoader = new MockClassLoader();31Class<?> clazz = mockClassLoader.loadClass("org.powermock.core.classloader.ClassToBeLoaded");32Constructor<?> constructor = clazz.getConstructor();33Object object = constructor.newInstance();34System.out.println(object);35}36}37import org.powermock.core.classloader.MockClassLoader;38import java.lang.reflect.Constructor;39import java.lang.reflect.InvocationTargetException;40public class 7 {41@PrepareForTest({ MockClassLoader.class })42public class 7 {43    public static void main(String[] args) throws Exception {44        MockClassLoader mockClassLoader = new MockClassLoader();45        Class<?> clazz = mockClassLoader.loadClass("com.example.TestClass", true,46                getClass().getClassLoader(), getClass().getProtectionDomain());47        System.out.println(clazz);48    }49}50import org.powermock.core.classloader.MockClassLoader;51import org

MockClassLoader

Using AI Code Generation

1package org.powermock.core.classloader;2import org.powermock.core.classloader.annotations.PrepareForTest;3@PrepareForTest(MockClassLoader.class)4public class MockClassLoaderTest {5public void testGetMockedClass() throws Exception {6MockClassLoader mockClassLoader = new MockClassLoader();7Class<?> clazz = mockClassLoader.getMockedClass(MockClassLoader.class);8System.out.println(clazz.getName());9}10}

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