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How to use invoke method of org.powermock.reflect.internal.WhiteboxImpl class

Best Powermock code snippet using org.powermock.reflect.internal.WhiteboxImpl.invoke

Source:Whitebox.java

...346	}347	/**348	 * Invoke a private or inner class method without the need to specify the349	 * method name. This is thus a more refactor friendly version of the350	 * {@link #invokeMethod(Object, String, Object...)} method and is recommend351	 * over this method for that reason. This method might be useful to test352	 * private methods.353	 * 354	 * @throws Throwable355	 */356	public static synchronized <T> T invokeMethod(Object instance, Object... arguments) throws Exception {357		return WhiteboxImpl.<T> invokeMethod(instance, arguments);358	}359	/**360	 * Invoke a private or inner class static method without the need to specify361	 * the method name. This is thus a more refactor friendly version of the362	 * {@link #invokeMethod(Class, String, Object...)} method and is recommend363	 * over this method for that reason. This method might be useful to test364	 * private methods.365	 * 366	 */367	public static synchronized <T> T invokeMethod(Class<?> klass, Object... arguments) throws Exception {368		return WhiteboxImpl.<T> invokeMethod(klass, arguments);369	}370	/**371	 * Invoke a private or inner class method. This might be useful to test372	 * private methods.373	 */374	public static synchronized <T> T invokeMethod(Object instance, String methodToExecute, Object... arguments)375			throws Exception {376		return WhiteboxImpl.<T> invokeMethod(instance, methodToExecute, arguments);377	}378	/**379	 * Invoke a private or inner class method in cases where PowerMock cannot380	 * automatically determine the type of the parameters, for example when381	 * mixing primitive types and wrapper types in the same method. For most382	 * situations use {@link #invokeMethod(Object, Object...)} instead.383	 * 384	 * @throws Exception385	 *             Exception that may occur when invoking this method.386	 */387	public static synchronized <T> T invokeMethod(Object instance, String methodToExecute, Class<?>[] argumentTypes,388			Object... arguments) throws Exception {389		return WhiteboxImpl.<T> invokeMethod(instance, methodToExecute, argumentTypes, arguments);390	}391	/**392	 * Invoke a private or inner class method in a subclass (defined by393	 * <code>definedIn</code>) in cases where PowerMock cannot automatically394	 * determine the type of the parameters, for example when mixing primitive395	 * types and wrapper types in the same method. For most situations use396	 * {@link #invokeMethod(Object, Object...)} instead.397	 * 398	 * @throws Exception399	 *             Exception that may occur when invoking this method.400	 */401	public static synchronized <T> T invokeMethod(Object instance, String methodToExecute, Class<?> definedIn,402			Class<?>[] argumentTypes, Object... arguments) throws Exception {403		return WhiteboxImpl.<T> invokeMethod(instance, methodToExecute, definedIn, argumentTypes, arguments);404	}405	/**406	 * Invoke a private or inner class method in that is located in a subclass407	 * of the instance. This might be useful to test private methods.408	 * 409	 * @throws Exception410	 *             Exception that may occur when invoking this method.411	 */412	public static synchronized <T> T invokeMethod(Object instance, Class<?> declaringClass, String methodToExecute,413			Object... arguments) throws Exception {414		return WhiteboxImpl.<T> invokeMethod(instance, declaringClass, methodToExecute, arguments);415	}416	/**417	 * Invoke a private or inner class method in that is located in a subclass418	 * of the instance. This might be useful to test private methods.419	 * <p>420	 * Use this for overloaded methods.421	 * 422	 * @throws Exception423	 *             Exception that may occur when invoking this method.424	 */425	public static synchronized <T> T invokeMethod(Object object, Class<?> declaringClass, String methodToExecute,426			Class<?>[] parameterTypes, Object... arguments) throws Exception {427		return WhiteboxImpl.<T> invokeMethod(object, declaringClass, methodToExecute, parameterTypes, arguments);428	}429	/**430	 * Invoke a static private or inner class method. This may be useful to test431	 * private methods.432	 * 433	 */434	public static synchronized <T> T invokeMethod(Class<?> clazz, String methodToExecute, Object... arguments)435			throws Exception {436		return WhiteboxImpl.<T> invokeMethod(clazz, methodToExecute, arguments);437	}438	/**439	 * Invoke a constructor. Useful for testing classes with a private440	 * constructor when PowerMock cannot determine which constructor to invoke.441	 * This only happens if you have two constructors with the same number of442	 * arguments where one is using primitive data types and the other is using443	 * the wrapped counter part. For example:444	 * 445	 * <pre>446	 * public class MyClass {447	 *     private MyClass(Integer i) {448	 *         ...449	 *     } 450	 * 451	 *     private MyClass(int i) {452	 *         ...453	 *     }454	 * </pre>455	 * 456	 * This ought to be a really rare case. So for most situation, use457	 * {@link #invokeConstructor(Class, Object...)} instead.458	 * 459	 * 460	 * @return The object created after the constructor has been invoked.461	 * @throws Exception462	 *             If an exception occur when invoking the constructor.463	 */464	public static <T> T invokeConstructor(Class<T> classThatContainsTheConstructorToTest, Class<?>[] parameterTypes,465			Object[] arguments) throws Exception {466		return WhiteboxImpl.invokeConstructor(classThatContainsTheConstructorToTest, parameterTypes, arguments);467	}468	/**469	 * Invoke a constructor. Useful for testing classes with a private470	 * constructor.471	 * 472	 * 473	 * @return The object created after the constructor has been invoked.474	 * @throws Exception475	 *             If an exception occur when invoking the constructor.476	 */477	public static <T> T invokeConstructor(Class<T> classThatContainsTheConstructorToTest, Object... arguments)478			throws Exception {479		return WhiteboxImpl.invokeConstructor(classThatContainsTheConstructorToTest, arguments);480	}481	/**482	 * Get the first parent constructor defined in a super class of483	 * <code>klass</code>.484	 * 485	 * @param klass486	 *            The class where the constructor is located. <code>null</code>487	 *            ).488	 * @return A <code>java.lang.reflect.Constructor</code>.489	 */490	public static Constructor<?> getFirstParentConstructor(Class<?> klass) {491		return WhiteboxImpl.getFirstParentConstructor(klass);492	}493	/**...

Source:package-info.java

1/**2 * Regression: MethodNotFoundException3 * https://github.com/powermock/powermock/issues/7174 *5 * org.powermock.reflect.exceptions.MethodNotFoundException: No methods matching the name(s) accept were found in the class hierarchy of class java.lang.Object.6 at org.powermock.reflect.internal.WhiteboxImpl.getMethods(WhiteboxImpl.java:1720)7 at org.powermock.reflect.internal.WhiteboxImpl.getMethods(WhiteboxImpl.java:1745)8 at org.powermock.reflect.internal.WhiteboxImpl.getBestMethodCandidate(WhiteboxImpl.java:983)9 at org.powermock.core.MockGateway$MockInvocation.findMethodToInvoke(MockGateway.java:317)10 at org.powermock.core.MockGateway$MockInvocation.init(MockGateway.java:356)11 at org.powermock.core.MockGateway$MockInvocation.<init>(MockGateway.java:307)12 at org.powermock.core.MockGateway.doMethodCall(MockGateway.java:142)13 at org.powermock.core.MockGateway.methodCall(MockGateway.java:125)14 at InstanceFacadeImplTest.pendingInstanceStatusProcessorShouldDoNothing(InstanceFacadeI15 *16 */...

invoke

Using AI Code Generation

1import org.powermock.reflect.internal.WhiteboxImpl;2import org.powermock.reflect.exceptions.FieldNotFoundException;3import org.powermock.reflect.exceptions.MethodNotFoundException;4import org.powermock.reflect.exceptions.TooManyMethodsFoundException;5import org.powermock.reflect.exceptions.TooManyFieldsFoundException;6import org.powermock.reflect.exceptions.TooManyConstructorsFoundException;7import org.powermock.reflect.exceptions.ConstructorNotFoundException;8public class Test{9	public static void main(String[] args) throws Exception{10		WhiteboxImpl obj = new WhiteboxImpl();11		Object[] object = new Object[1];12		object[0] = "hello";13		obj.invoke(Test.class, "main", object);14	}15}16import org.powermock.reflect.internal.WhiteboxImpl;17import org.powermock.reflect.exceptions.FieldNotFoundException;18import org.powermock.reflect.exceptions.MethodNotFoundException;19import org.powermock.reflect.exceptions.TooManyMethodsFoundException;20import org.powermock.reflect.exceptions.TooManyFieldsFoundException;21import org.powermock.reflect.exceptions.TooManyConstructorsFoundException;22import org.powermock.reflect.exceptions.ConstructorNotFoundException;23public class Test{24	public static void main(String[] args) throws Exception{25		WhiteboxImpl obj = new WhiteboxImpl();26		Object[] object = new Object[1];27		object[0] = "hello";28		obj.invokeConstructor(Test.class, object);29	}30}31import org.powermock.reflect.internal.WhiteboxImpl;32import org.powermock.reflect.exceptions.FieldNotFoundException;33import org.powermock.reflect.exceptions.MethodNotFoundException;34import org.powermock.reflect.exceptions.TooManyMethodsFoundException;35import org.powermock.reflect.exceptions.TooManyFieldsFoundException;36import org.powermock.reflect.exceptions.TooManyConstructorsFoundException;37import org.powermock.reflect.exceptions.ConstructorNotFoundException;38public class Test{39	public static void main(String[] args) throws Exception{40		WhiteboxImpl obj = new WhiteboxImpl();41		obj.setInternalState(Test.class, "name", "hello");42	}43}44import org.powermock.reflect.internal.WhiteboxImpl;45import org.powermock.reflect.exceptions.FieldNotFoundException;46import org.powermock.reflect.exceptions

invoke

Using AI Code Generation

1package com.powermock;2import java.lang.reflect.InvocationTargetException;3import java.lang.reflect.Method;4import org.powermock.reflect.internal.WhiteboxImpl;5public class WhiteboxInvokeMethod {6	public static void main(String[] args) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException, SecurityException {7		WhiteboxImpl whitebox = new WhiteboxImpl();8		Class<?>[] parameterTypes = new Class<?>[1];9		parameterTypes[0] = String.class;10		Method method = whitebox.getClass().getDeclaredMethod("invokeMethod", Object.class, String.class, Object[].class, Class[].class);11		method.setAccessible(true);12		method.invoke(whitebox, new Object(), "method", new Object[] {"param1"}, parameterTypes);13	}14}15package com.powermock;16import java.lang.reflect.InvocationTargetException;17import java.lang.reflect.Method;18import org.powermock.reflect.internal.WhiteboxImpl;19public class WhiteboxInvokeMethod {20	public static void main(String[] args) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException, SecurityException {21		WhiteboxImpl whitebox = new WhiteboxImpl();22		Class<?>[] parameterTypes = new Class<?>[1];23		parameterTypes[0] = String.class;24		Method method = whitebox.getClass().getDeclaredMethod("invokeMethod", Object.class, String.class, Object[].class, Class[].class);25		method.setAccessible(true);26		method.invoke(whitebox, new Object(), "method", new Object[] {"param1"}, parameterTypes);27	}28}29package com.powermock;30import java.lang.reflect.InvocationTargetException;31import java.lang.reflect.Method;32import org.powermock.reflect.internal.WhiteboxImpl;33public class WhiteboxInvokeMethod {34	public static void main(String[] args) throws IllegalAccessException, IllegalArgumentException, InvocationTargetException, NoSuchMethodException, SecurityException {35		WhiteboxImpl whitebox = new WhiteboxImpl();36		Class<?>[] parameterTypes = new Class<?>[1];37		parameterTypes[0] = String.class;38		Method method = whitebox.getClass().getDeclaredMethod("invoke

invoke

Using AI Code Generation

1package org.powermock.reflect.internal;2import java.lang.reflect.InvocationTargetException;3import java.lang.reflect.Method;4public class WhiteboxImpl {5    public static Object invokeMethod(Object target, String methodName, Object... params) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {6        Class<?>[] paramTypes = new Class<?>[params.length];7        for (int i = 0; i < params.length; i++) {8            paramTypes[i] = params[i].getClass();9        }10        Method method = target.getClass().getMethod(methodName, paramTypes);11        return method.invoke(target, params);12    }13}14package org.powermock.reflect.internal;15public class WhiteboxImpl {16    public static void main(String[] args) throws Exception {17        WhiteboxImpl.invokeMethod(new A(), "m", new B());18    }19}20package org.powermock.reflect.internal;21public class A {22    public void m(B b) {23        System.out.println("Hello");24    }25}26package org.powermock.reflect.internal;27public class B {28}29package org.powermock.reflect.internal;30public class C {31}32package org.powermock.reflect.internal;33public class D {34}35package org.powermock.reflect.internal;36public class E {37}38package org.powermock.reflect.internal;39public class F {40}41package org.powermock.reflect.internal;42public class G {43}44package org.powermock.reflect.internal;45public class H {46}47package org.powermock.reflect.internal;48public class I {49}50package org.powermock.reflect.internal;51public class J {52}53package org.powermock.reflect.internal;54public class K {55}56package org.powermock.reflect.internal;57public class L {58}59package org.powermock.reflect.internal;60public class M {61}62package org.powermock.reflect.internal;63public class N {64}65package org.powermock.reflect.internal;66public class O {67}68package org.powermock.reflect.internal;69public class P {70}

invoke

Using AI Code Generation

1import org.powermock.reflect.internal.WhiteboxImpl;2import java.lang.reflect.InvocationTargetException;3import java.lang.reflect.Method;4{5    public static void main(String[] args) throws InvocationTargetException, IllegalAccessException6    {7        Test obj = new Test();8        Method method = WhiteboxImpl.getMethod(Test.class, "print");9        method.invoke(obj);10    }11    private void print()12    {13        System.out.println("Hello");14    }15}

invoke

Using AI Code Generation

1import org.powermock.reflect.internal.WhiteboxImpl;2public class 4 {3    public static void main(String[] args) throws Exception {4        WhiteboxImpl w = new WhiteboxImpl();5        System.out.println(w.invokeMethod(new A(), "foo", "bar"));6    }7}8class A {9    private String foo(String s) {10        return "foo " + s;11    }12}

invoke

Using AI Code Generation

1package com.powermock;2import org.powermock.reflect.Whitebox;3public class PowerMockTest {4public static void main(String[] args) throws Exception {5Whitebox.invokeMethod(Whitebox.newInstance(Class.forName("com.powermock.Test")), "test");6}7}8package com.powermock;9public class Test {10public void test() {11System.out.println("Test");12}13}

invoke

Using AI Code Generation

1import org.powermock.reflect.internal.WhiteboxImpl;2import java.lang.reflect.Method;3import java.lang.reflect.InvocationTargetException;4import java.lang.reflect.Field;5import java.lang.reflect.Constructor;6import java.lang.reflect.Modifier;7public class Test {8    public static void main(String[] args) throws Exception {9        Class c = Class.forName("Test");10        Method m = c.getDeclaredMethod("privateMethod", int.class);11        WhiteboxImpl.invokeMethod(c.newInstance(), m, 5);12    }13    private void privateMethod(int i) {14        System.out.println("This is a private method");15    }16}17Method Description public static Object invokeMethod(Object target, Method method, Object... args) Invokes a method on a target object. public static Object invokeMethod(Object target, String methodName, Object... args) Invokes a method on a target object. public static Object invokeMethod(Object target, String methodName, Class<?>[] parameterTypes, Object... args) Invokes a method on a target object. public static Object invokeConstructor(Class<?> clazz, Object... args) Invokes a constructor on a class. public static Object invokeConstructor(Class<?> clazz, Class<?>[] parameterTypes, Object... args) Invokes a constructor on a class. public static Object getStaticField(Class<?> clazz, String fieldName) Get the value of a static field. public static Object getStaticField(Class<?> clazz, String fieldName, boolean suppressException) Get the value of a static field. public static void setStaticField(Class<?> clazz, String fieldName, Object value) Set the value of a static field. public static void setStaticField(Class<?> clazz, String fieldName, Object value, boolean suppressException) Set the value of a static field. public static Object getInternalState(Object target, String fieldName) Get the value of a field on a target object. public static Object getInternalState(Object

invoke

Using AI Code Generation

1import org.powermock.reflect.internal.WhiteboxImpl;2import java.lang.reflect.InvocationTargetException;3import java.lang.reflect.Method;4public class InvokePrivateMethod {5    public InvokePrivateMethod() {6    }7    public static void main(String[] args) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {8        InvokePrivateMethod obj = new InvokePrivateMethod();9        Method method = obj.getClass().getDeclaredMethod("display", null);10        method.setAccessible(true);11        method.invoke(obj, null);12    }13    private void display() {14        System.out.println("Hello World!");15    }16}

invoke

Using AI Code Generation

1import org.junit.Assert;2import org.junit.Test;3import org.powermock.reflect.internal.WhiteboxImpl;4public class A {5    private String privateMethod(String s, Integer i) {6        return s + i;7    }8    public void test() throws Exception {9        String s = (String) WhiteboxImpl.invokeMethod(new A(), "privateMethod", "hello", 2);10        Assert.assertEquals("hello2", s);11    }12}

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