Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use newInstance method of org.powermock.reflect.Whitebox class

Best Powermock code snippet using org.powermock.reflect.Whitebox.newInstance

Source:PowerMockClassloaderObjectFactory.java

...51		ignorePackagesExtractor = new PowerMockIgnorePackagesExtractorImpl();52                expectedExceptionsExtractor = new PowerMockExpectedExceptionsExtractorImpl();53                staticConstructorSuppressExtractor = new StaticConstructorSuppressExtractorImpl();54	}55	public Object newInstance(@SuppressWarnings("rawtypes") Constructor constructor, Object... params) {56		/*57		 * For extra safety clear the MockitoRepository on each new58		 * instantiation of the object factory. This is good in cases where a59		 * previous test has used e.g. PowerMock#createMock(..) to create a mock60		 * without using this factory. That means that there's some state left in61		 * the MockRepository that hasn't been cleared. Currently clearing the62		 * MockRepository from any classloader will clear the previous state but63		 * it's not certain that this is always the case.64		 */65		MockRepository.clear();66		Class<?> testClass = constructor.getDeclaringClass();67		mockLoader.addIgnorePackage(ignorePackagesExtractor.getPackagesToIgnore(testClass));68                mockLoader.addIgnorePackage(expectedExceptionsExtractor.getPackagesToIgnore(testClass));69		mockLoader.addClassesToModify(testClassesExtractor.getTestClasses(testClass));70                mockLoader.addClassesToModify(staticConstructorSuppressExtractor.getClassesToModify(testClass));71		try {72			registerProxyframework(mockLoader);73			new MockPolicyInitializerImpl(testClass).initialize(mockLoader);74			final Class<?> testClassLoadedByMockedClassLoader = createTestClass(testClass);75			Constructor<?> con = testClassLoadedByMockedClassLoader.getConstructor(constructor.getParameterTypes());76			final Object testInstance = con.newInstance(params);77			if (!extendsPowerMockTestCase(testClass)) {78				setInvocationHandler(testInstance);79			}80			return testInstance;81		} catch (RuntimeException e) {82			throw e;83		} catch (Exception e) {84			throw new RuntimeException(e);85		}86	}87	private void setInvocationHandler(Object testInstance) throws Exception {88		Class<?> powerMockTestNGMethodHandlerClass = Class.forName(PowerMockTestNGMethodHandler.class.getName(), false, mockLoader);89		Object powerMockTestNGMethodHandlerInstance = powerMockTestNGMethodHandlerClass.getConstructor(Class.class).newInstance(90				testInstance.getClass());91		Whitebox.invokeMethod(testInstance, "setHandler", powerMockTestNGMethodHandlerInstance);92	}93	/**94	 * We proxy the test class in order to be able to clear state after each95	 * test method invocation. It would be much better to be able to register a96	 * testng listener programmtically but I cannot find a way to do so.97	 */98	private Class<?> createTestClass(Class<?> actualTestClass) throws Exception {99		final Class<?> testClassLoadedByMockedClassLoader = Class.forName(actualTestClass.getName(), false, mockLoader);100		if (extendsPowerMockTestCase(actualTestClass)) {101			return testClassLoadedByMockedClassLoader;102		} else {103			Class<?> proxyFactoryClass = Class.forName(ProxyFactory.class.getName(), false, mockLoader);104			final Class<?> testNGMethodFilterByMockedClassLoader = Class.forName(TestNGMethodFilter.class.getName(), false, mockLoader);105			Object f = proxyFactoryClass.newInstance();106			Object filter = testNGMethodFilterByMockedClassLoader.newInstance();107			Whitebox.invokeMethod(f, "setFilter", filter);108			Whitebox.invokeMethod(f, "setSuperclass", testClassLoadedByMockedClassLoader);109			Class<?> c = Whitebox.invokeMethod(f, "createClass");110			return c;111		}112	}113	private boolean extendsPowerMockTestCase(Class<?> actualTestClass) {114		return PowerMockTestCase.class.isAssignableFrom(actualTestClass);115	}116	private void registerProxyframework(ClassLoader classLoader) {117		Class<?> proxyFrameworkClass = null;118		try {119			proxyFrameworkClass = Class.forName("org.powermock.api.extension.proxyframework.ProxyFrameworkImpl", false, classLoader);120		} catch (ClassNotFoundException e) {121			throw new IllegalStateException(122					"Extension API internal error: org.powermock.api.extension.proxyframework.ProxyFrameworkImpl could not be located in classpath.");123		}124		Class<?> proxyFrameworkRegistrar = null;125		try {126			proxyFrameworkRegistrar = Class.forName(RegisterProxyFramework.class.getName(), false, classLoader);127		} catch (ClassNotFoundException e) {128			// Should never happen129			throw new RuntimeException(e);130		}131		try {132			Whitebox.invokeMethod(proxyFrameworkRegistrar, "registerProxyFramework", Whitebox.newInstance(proxyFrameworkClass));133		} catch (RuntimeException e) {134			throw e;135		} catch (Exception e) {136			throw new RuntimeException(e);137		}138	}139}...

Source:ClassWithNonPublicStaticInnerClassTest.java

...3import static org.hamcrest.core.IsNot.not;4import static org.junit.Assert.assertThat;5import static org.powermock.reflect.Whitebox.getInnerClassType;6import static org.powermock.reflect.Whitebox.invokeMethod;7import static org.powermock.reflect.Whitebox.newInstance;8import static org.powermock.reflect.Whitebox.setInternalState;9import com.zak.powermock.recipes.TestHelper;10import org.junit.Before;11import org.junit.Test;12import org.junit.runner.RunWith;13import org.powermock.modules.junit4.PowerMockRunner;14@RunWith(PowerMockRunner.class)15public class ClassWithNonPublicStaticInnerClassTest extends TestHelper {16    private ClassWithNonPublicStaticInnerClass sut;17    private Class sutClass;18    @Before19    public void setUp() {20        sut = new ClassWithNonPublicStaticInnerClass();21        sutClass = sut.getClass();22    }23    @Test24    public void shouldGainAccessToProtectedInnerClass() throws ClassNotFoundException {25        setInstance("ProtectedInnerClass", "protectedInnerClass");26        String description = sut.getProtectedInnerClass().getDescription();27        validateDescription(description);28    }29    @Test30    public void shouldGainAccessToPrivateInnerClass() throws Exception {31        setInstance("PrivateInnerClass", "privateInnerClass");32        String description = invokeMethod(sut.getPrivateInnerClass(), "getDescription");33        validateDescription(description);34    }35    private void validateDescription(String description) {36        assertThat(description, is(not((String)null)));37        logger.info(description);38    }39    private void setInstance(String className, String instanceName) throws ClassNotFoundException {40        Class<Object> privateInnerClass = getInnerClassType(sutClass, className);41        setInternalState(sut, instanceName, newInstance(privateInnerClass));42    }43}...

newInstance

Using AI Code Generation

1package com.automationrhapsody.powermock;2import java.lang.reflect.InvocationTargetException;3import org.powermock.reflect.Whitebox;4public class WhiteboxNewInstance {5    public static void main(String[] args) throws InstantiationException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException, SecurityException {6        String str = Whitebox.newInstance(String.class);7        System.out.println("str: " + str);8    }9}

newInstance

Using AI Code Generation

1import org.powermock.reflect.Whitebox;2import java.lang.reflect.InvocationTargetException;3public class 4 {4    public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException {5        String className = "java.util.ArrayList";6        Object o = Whitebox.newInstance(Class.forName(className));7        System.out.println(o);8    }9}10import org.powermock.reflect.Whitebox;11import java.lang.reflect.InvocationTargetException;12public class 5 {13    public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException {14        String className = "java.util.ArrayList";15        Object o = Whitebox.newInstance(Class.forName(className));16        System.out.println(o);17    }18}19import org.powermock.reflect.Whitebox;20import java.lang.reflect.InvocationTargetException;21public class 6 {22    public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException {23        String className = "java.util.ArrayList";24        Object o = Whitebox.newInstance(Class.forName(className));25        System.out.println(o);26    }27}28import org.powermock.reflect.Whitebox;29import java.lang.reflect.InvocationTargetException;30public class 7 {31    public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException {32        String className = "java.util.ArrayList";33        Object o = Whitebox.newInstance(Class.forName(className));34        System.out.println(o);35    }36}37import org.powermock.reflect.Whitebox;38import java.lang.reflect.InvocationTargetException;39public class 8 {40    public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, InvocationTargetException {41        String className = "java.util.ArrayList";42        Object o = Whitebox.newInstance(Class.forName(className));43        System.out.println(o);44    }45}

newInstance

Using AI Code Generation

1package org.powermock.api.mockito.internal.mockcreation;2import java.lang.reflect.Constructor;3import java.lang.reflect.InvocationTargetException;4import org.powermock.reflect.Whitebox;5public class NewInstanceMockCreator extends AbstractMockCreator {6    protected Object getMock(Class<?> type, Class<?>[] constructorArgTypes, Object[] constructorArgs) throws MockCreationException {7        try {8            Constructor<?> constructor = type.getDeclaredConstructor(constructorArgTypes);9            return Whitebox.newInstance(constructor, constructorArgs);10        } catch (NoSuchMethodException e) {11            throw new MockCreationException("No constructor with matching arguments found in class " + type.getName(), e);12        } catch (IllegalAccessException e) {13            throw new MockCreationException("Unable to access constructor in class " + type.getName(), e);14        } catch (InstantiationException e) {15            throw new MockCreationException("Unable to instantiate class " + type.getName(), e);16        } catch (InvocationTargetException e) {17            throw new MockCreationException("Unable to invoke constructor in class " + type.getName(), e);18        }19    }20}21package org.powermock.api.mockito.internal.mockcreation;22import java.lang.reflect.Constructor;23import java.lang.reflect.InvocationTargetException;24import org.powermock.reflect.Whitebox;25public class NewInstanceMockCreator extends AbstractMockCreator {26    protected Object getMock(Class<?> type, Class<?>[] constructorArgTypes, Object[] constructorArgs) throws MockCreationException {27        try {28            Constructor<?> constructor = type.getDeclaredConstructor(constructorArgTypes);29            return Whitebox.newInstance(constructor, constructorArgs);30        } catch (NoSuchMethodException e) {31            throw new MockCreationException("No constructor with matching arguments found in class " + type.getName(), e);32        } catch (IllegalAccessException e) {33            throw new MockCreationException("Unable to access constructor in class " + type.getName(), e);34        } catch (InstantiationException e) {35            throw new MockCreationException("Unable to instantiate class " + type.getName(), e);36        } catch (InvocationTargetException e) {37            throw new MockCreationException("Unable to invoke constructor in class " + type.getName(), e);38        }39    }40}41package org.powermock.api.mockito.internal.mockcreation;42import java

newInstance

Using AI Code Generation

1package org.powermock.examples.tutorial.partialmocking;2import org.powermock.reflect.Whitebox;3public class ClassWithStaticMethod {4    public static int add(int a, int b) {5        return a + b;6    }7}8package org.powermock.examples.tutorial.partialmocking;9import org.powermock.reflect.Whitebox;10public class ClassWithStaticMethod {11    public static int add(int a, int b) {12        return a + b;13    }14}15package org.powermock.examples.tutorial.partialmocking;16import org.powermock.reflect.Whitebox;17public class ClassWithStaticMethod {18    public static int add(int a, int b) {19        return a + b;20    }21}22package org.powermock.examples.tutorial.partialmocking;23import org.powermock.reflect.Whitebox;24public class ClassWithStaticMethod {25    public static int add(int a, int b) {26        return a + b;27    }28}29package org.powermock.examples.tutorial.partialmocking;30import org.powermock.reflect.Whitebox;31public class ClassWithStaticMethod {32    public static int add(int a, int b) {33        return a + b;34    }35}36package org.powermock.examples.tutorial.partialmocking;37import org.powermock.reflect.Whitebox;38public class ClassWithStaticMethod {39    public static int add(int a, int b) {40        return a + b;41    }42}43package org.powermock.examples.tutorial.partialmocking;44import org.powermock.reflect.Whitebox;45public class ClassWithStaticMethod {46    public static int add(int a, int b) {47        return a + b;48    }49}50package org.powermock.examples.tutorial.partialmocking;51import org.powermock

newInstance

Using AI Code Generation

1package org.powermock.examples.tutorial.partialmocking.service;2import org.powermock.reflect.Whitebox;3public class ServiceFactory {4    public static Service createService() throws Exception {5        return Whitebox.newInstance(Service.class);6    }7}8package org.powermock.examples.tutorial.partialmocking.service;9import org.powermock.reflect.Whitebox;10public class ServiceFactory {11    public static Service createService() throws Exception {12        return Whitebox.newInstance(Service.class);13    }14}15package org.powermock.examples.tutorial.partialmocking.service;16import org.powermock.reflect.Whitebox;17public class ServiceFactory {18    public static Service createService() throws Exception {19        return Whitebox.newInstance(Service.class);20    }21}22package org.powermock.examples.tutorial.partialmocking.service;23import org.powermock.reflect.Whitebox;24public class ServiceFactory {25    public static Service createService() throws Exception {26        return Whitebox.newInstance(Service.class);27    }28}29package org.powermock.examples.tutorial.partialmocking.service;30import org.powermock.reflect.Whitebox;31public class ServiceFactory {32    public static Service createService() throws Exception {33        return Whitebox.newInstance(Service.class);34    }35}36package org.powermock.examples.tutorial.partialmocking.service;37import org.powermock.reflect.Whitebox;38public class ServiceFactory {39    public static Service createService() throws Exception {40        return Whitebox.newInstance(Service.class);41    }42}43package org.powermock.examples.tutorial.partialmocking.service;44import org.powermock.reflect.Whitebox;45public class ServiceFactory {

newInstance

Using AI Code Generation

1package com.powermock.examples;2import org.powermock.reflect.Whitebox;3public class 4 {4	public static void main(String[] args) throws Exception {5		Object obj=Whitebox.newInstance("com.powermock.examples.5");6		Whitebox.invokeMethod(obj, "print");7	}8}9package com.powermock.examples;10public class 5 {11	public void print(){12		System.out.println("I am class 5");13	}14}

newInstance

Using AI Code Generation

1import java.lang.reflect.*;2import java.io.*;3import java.util.*;4import java.lang.*;5import java.util.Scanner;6import java.io.File;7import java.io.IOException;8import java.io.InputStream;9import java.io.InputStreamReader;10import java.io.BufferedReader;11import java.io.FileInputStream;12import java.io.FileNotFoundException;13import java.io.FileReader;14import java.io.FileWriter;15import java.io.BufferedWriter;16import java.io.PrintWriter;17import java.io.OutputStreamWriter;18import java.io.FileOutputStream;19import java.io.BufferedOutputStream;20import java.io.DataOutputStream;21import java.io.ByteArrayOutputStream;22import java.io.ByteArrayInputStream;23import java.io.DataInputStream;24import java.io.ObjectOutputStream;25import java.io.ObjectInputStream;26import java.io.ObjectOutput;27import java.io.ObjectInput;28import java.io.Serializable;29import java.io.Externalizable;30import java.io.ObjectStreamClass;31import java.io.ObjectStreamField;32import java.io.ObjectStreamException;33import java.io.NotSerializableException;34import java.io.ObjectStreamConstants;35import java.io.StreamCorruptedException;36import java.io.ObjectStreamClass;37import java.io.ObjectStreamField;38import java.io.ObjectStreamException;39import java.io.NotSerializableException;40import java.io.ObjectStreamConstants;41import java.io.StreamCorruptedException;42import java.io.ObjectStreamClass;43import java.io.ObjectStreamField;44import java.io.ObjectStreamException;45import java.io.NotSerializableException;46import java.io.ObjectStreamConstants;47import java.io.StreamCorruptedException;48import java.io.ObjectStreamClass;49import java.io.ObjectStreamField;50import java.io.ObjectStreamException;51import java.io.NotSerializableException;52import java.io.ObjectStreamConstants;53import java.io.StreamCorruptedException;54import java.io.ObjectStreamClass;55import java.io.ObjectStreamField;56import java.io.ObjectStreamException;57import java.io.NotSerializableException;58import java.io.ObjectStreamConstants;59import java.io.StreamCorruptedException;60import java.io.ObjectStreamClass;61import java.io.ObjectStreamField;62import java.io.ObjectStreamException;63import java.io.NotSerializableException;64import java.io.ObjectStreamConstants;65import java.io.StreamCorruptedException;66import java.io.ObjectStreamClass;67import java.io.ObjectStreamField;68import java.io.ObjectStreamException;69import java.io.NotSerializableException;70import java.io.ObjectStreamConstants;71import java.io.StreamCorruptedException;72import java.io.ObjectStreamClass;73import java.io.ObjectStreamField;74import java.io.ObjectStreamException;75import java.io.NotSerializableException;76import java.io.ObjectStream

newInstance

Using AI Code Generation

1package org.powermock.examples.tutorial.partialmocking;2import org.junit.Test;3import org.powermock.reflect.Whitebox;4import static org.junit.Assert.assertEquals;5public class UsingWhiteboxTest {6    public void testUsingWhitebox() throws Exception {7        MyClass myClass = Whitebox.newInstance(MyClass.class);8        Whitebox.setInternalState(myClass, "myPrivateField", "Hello World");9        String privateFieldValue = Whitebox.getInternalState(myClass, "myPrivateField");10        assertEquals("Hello World", privateFieldValue);11    }12}13package org.powermock.examples.tutorial.partialmocking;

newInstance

Using AI Code Generation

1import java.lang.reflect.*;2import java.io.*;3import java.util.*;4import java.lang.*;5import java.util.Scanner;6import java.io.File;7import java.io.IOException;8import java.io.InputStream;9import java.io.InputStreamReader;10import java.io.BufferedReader;11import java.io.FileInputStream;12import java.io.FileNotFoundException;13import java.io.FileReader;14import java.io.FileWriter;15import java.io.BufferedWriter;16import java.io.PrintWriter;17import java.io.OutputStreamWriter;18import java.io.FileOutputStream;19import java.io.BufferedOutputStream;20import java.io.DataOutputStream;21import java.io.ByteArrayOutputStream;22import java.io.ByteArrayInputStream;23import java.io.DataInputStream;24import java.io.ObjectOutputStream;25import java.io.ObjectInputStream;26import java.io.ObjectOutput;27import java.io.ObjectInput;28import java.io.Serializable;29import java.io.Externalizable;30import java.io.ObjectStreamClass;31import java.io.ObjectStreamField;32import java.io.ObjectStreamException;33import java.io.NotSerializableException;34import java.io.ObjectStreamConstants;35import java.io.StreamCorruptedException;36import java.io.ObjectStreamClass;37import java.io.ObjectStreamField;38import java.io.ObjectStreamException;39import java.io.NotSerializableException;40import java.io.ObjectStreamConstants;41import java.io.StreamCorruptedException;42import java.io.ObjectStreamClass;43import java.io.ObjectStreamField;44import java.io.ObjectStreamException;45import java.io.NotSerializableException;46import java.io.ObjectStreamConstants;47import java.io.StreamCorruptedException;48import java.io.ObjectStreamClass;49import java.io.ObjectStreamField;50import java.io.ObjectStreamException;51import java.io.NotSerializableException;52import java.io.ObjectStreamConstants;53import java.io.StreamCorruptedException;54import java.io.ObjectStreamClass;55import java.io.ObjectStreamField;56import java.io.ObjectStreamException;57import java.io.NotSerializableException;58import java.io.ObjectStreamConstants;59import java.io.StreamCorruptedException;60import java.io.ObjectStreamClass;61import java.io.ObjectStreamField;62import java.io.ObjectStreamException;63import java.io.NotSerializableException;64import java.io.ObjectStreamConstants;65import java.io.StreamCorruptedException;66import java.io.ObjectStreamClass;67import java.io.ObjectStreamField;68import java.io.ObjectStreamException;69import java.io.NotSerializableException;70import java.io.ObjectStreamConstants;71import java.io.StreamCorruptedException;72import java.io.ObjectStreamClass;73import java.io.ObjectStreamField;74import java.io.ObjectStreamException;75import java.io.NotSerializableException;76import java.io.ObjectStream

newInstance

Using AI Code Generation

1package org.powermock.examples.tutorial.partialmocking;2import org.junit.Test;3import org.powermock.reflect.Whitebox;4import static org.junit.Assert.assertEquals;5public class UsingWhiteboxTest {6    public void testUsingWhitebox() throws Exception {7        MyClass myClass = Whitebox.newInstance(MyClass.class);8        Whitebox.setInternalState(myClass, "myPrivateField", "Hello World");9        String privateFieldValue = Whitebox.getInternalState(myClass, "myPrivateField");10        assertEquals("Hello World", privateFieldValue);11    }12}13package org.powermock.examples.tutorial.partialmocking;

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.