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How to use defineAndTransformClass method of org.powermock.core.classloader.javassist.JavassistMockClassLoader class

Best Powermock code snippet using org.powermock.core.classloader.javassist.JavassistMockClassLoader.defineAndTransformClass

Source:JavassistMockClassLoader.java

...85        }86        return bytes == null ? null : defineClass(name, bytes, 0, bytes.length, protectionDomain);87    }88    89    protected byte[] defineAndTransformClass(String name, ProtectionDomain protectionDomain) {90        final byte[] clazz;91        92        ClassPool.doPruning = false;93        try {94            CtClass type = classPool.get(name);95            96            ClassWrapper<CtClass> wrappedType = classWrapperFactory.wrap(type);97            98            wrappedType = transformClass(wrappedType);99            100            type = wrappedType.unwrap();101            /*102             * ClassPool may cause huge memory consumption if the number of CtClass103             * objects becomes amazingly large (this rarely happens since Javassist...

defineAndTransformClass

Using AI Code Generation

1import org.powermock.core.classloader.javassist.JavassistMockClassLoader;2import org.powermock.core.classloader.javassist.JavassistMockClassLoader;3import org.powermock.core.classloader.MockClassLoader;4import org.powermock.core.classloader.javassist.JavassistMockClassLoader;5public class Test {6  public static void main(String[] args) throws Exception {7    JavassistMockClassLoader mockClassLoader = new JavassistMockClassLoader();8    mockClassLoader.defineAndTransformClass("com.test.TestClass", "public class TestClass { public String testMethod() { return \"test\"; } }");9    Class<?> clazz = mockClassLoader.loadClass("com.test.TestClass");10    Object object = clazz.newInstance();11    Method method = clazz.getMethod("testMethod");12    String result = (String) method.invoke(object);13    System.out.println(result);14  }15}16import org.powermock.core.classloader.javassist.JavassistMockClassLoader;17import org.powermock.core.classloader.javassist.JavassistMockClassLoader;18import org.powermock.core.classloader.MockClassLoader;19import org.powermock.core.classloader.javassist.JavassistMockClassLoader;20public class Test {21  public static void main(String[] args) throws Exception {22    JavassistMockClassLoader mockClassLoader = new JavassistMockClassLoader();23    mockClassLoader.defineAndTransformClass("com.test.TestClass", "public class TestClass { public String testMethod() { return \"test\"; } }");24    Class<?> clazz = mockClassLoader.loadClass("com.test.TestClass");25    Object object = clazz.newInstance();26    Method method = clazz.getMethod("testMethod");27    String result = (String) method.invoke(object);28    System.out.println(result);29  }30}31import org.powermock.core.classloader.javassist.JavassistMockClassLoader;32import org.powermock.core.classloader.javassist.JavassistMockClassLoader;33import org.powermock.core.classloader.MockClassLoader;34import org.powermock.core.classloader.javassist.JavassistMockClassLoader;35public class Test {36  public static void main(String[] args) throws Exception {

defineAndTransformClass

Using AI Code Generation

1import java.io.File;2import java.io.IOException;3import java.lang.reflect.Method;4import java.util.ArrayList;5import java.util.List;6import java.util.Map;7import java.util.concurrent.ConcurrentHashMap;8import javassist.ClassPool;9import javassist.CtClass;10import javassist.CtMethod;11import javassist.CtNewMethod;12import javassist.LoaderClassPath;13import javassist.NotFoundException;14import org.powermock.core.classloader.MockClassLoader;15import org.powermock.core.transformers.MockTransformer;16import org.powermock.core.transformers.TransformStrategy;17public class JavassistMockClassLoader extends MockClassLoader {18    private final Map<String, Class<?>> mockClasses = new ConcurrentHashMap<String, Class<?>>();19    private final List<MockTransformer> mockTransformers;20    private final ClassPool classPool;21    public JavassistMockClassLoader(final ClassLoader parent, final List<MockTransformer> mockTransformers) {22        super(parent);23        this.mockTransformers = mockTransformers;24        this.classPool = new ClassPool();25        this.classPool.appendClassPath(new LoaderClassPath(parent));26    }27    protected Class<?> findClass(final String name) throws ClassNotFoundException {28        Class<?> mockClass = mockClasses.get(name);29        if (mockClass != null) {30            return mockClass;31        }32        final MockTransformer mockTransformer = getMockTransformer(name);33        if (mockTransformer != null) {34            mockClass = defineAndTransformClass(name, mockTransformer);35            if (mockClass != null) {36                return mockClass;37            }38        }39        return super.findClass(name);40    }41    private Class<?> defineAndTransformClass(final String name, final MockTransformer transformer)42            throws ClassNotFoundException {43        try {44            final CtClass ctClass = classPool.get(name);45            final byte[] bytes = transformer.transform(ctClass.toBytecode());46            return defineClass(name, bytes, 0, bytes.length);47        } catch (Exception e) {48            throw new ClassNotFoundException("Cannot define class: " + name, e);49        }50    }51    private MockTransformer getMockTransformer(final String name) {52        for (MockTransformer transformer : mockTransformers) {53            if (transformer.canTransform(name)) {54                return transformer;55            }56        }57        return null;58    }59    public void addMockTransformer(final MockTransformer transformer) {60        mockTransformers.add(transformer);61    }62    public void addMockTransformer(final List<MockTransformer

defineAndTransformClass

Using AI Code Generation

1package com.javacodegeeks.powermockito.mockfinal;2import java.lang.reflect.InvocationTargetException;3import java.lang.reflect.Method;4import org.junit.Test;5import org.powermock.core.classloader.annotations.PrepareForTest;6import org.powermock.reflect.Whitebox;7import com.javacodegeeks.powermockito.mockfinal.ClassWithFinalMethod;8@PrepareForTest(ClassWithFinalMethod.class)9public class ClassWithFinalMethodTest {10public void testClassWithFinalMethod() throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException {11    ClassWithFinalMethod classWithFinalMethod = new ClassWithFinalMethod();12    Class<?> classToMock = ClassWithFinalMethod.class;13    Class<?>[] parameterTypes = new Class<?>[] { String.class };14    Object[] arguments = new Object[] { "Java Code Geeks" };15    Object returnValue = "Java Code Geeks";16    Method method = classToMock.getDeclaredMethod("finalMethod", parameterTypes);17    Whitebox.invokeMethod(classWithFinalMethod, "defineAndTransformClass", classToMock, method, returnValue, arguments);18    String result = classWithFinalMethod.finalMethod("Java Code Geeks");19    assertEquals("Java Code Geeks", result);20}21}

defineAndTransformClass

Using AI Code Generation

1org.powermock.core.classloader.javassist.JavassistMockClassLoader classloader = new org.powermock.core.classloader.javassist.JavassistMockClassLoader()2Class clazz = classloader.defineAndTransformClass("com.example.demo.Demo", "package com.example.demo; public class Demo { public String hello() { return \"Hello from Demo\"; } }")3Object obj = clazz.newInstance()4def result = obj.hello()5org.powermock.core.classloader.javassist.JavassistMockClassLoader classloader = new org.powermock.core.classloader.javassist.JavassistMockClassLoader()6Class clazz = classloader.defineAndTransformClass("com.example.demo.Demo", "package com.example.demo; public class Demo { public String hello() { return \"Hello from Demo\"; } }")7Object obj = clazz.newInstance()8def result = obj.hello()9org.powermock.core.classloader.javassist.JavassistMockClassLoader classloader = new org.powermock.core.classloader.javassist.JavassistMockClassLoader()10Class clazz = classloader.defineAndTransformClass("com.example.demo.Demo", "package com.example.demo; public class Demo { public String hello() { return \"Hello from Demo\"; } }")11Object obj = clazz.newInstance()12def result = obj.hello()

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