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How to use transform method of powermock.classloading.ObjenesisClassloaderExecutorTest class

Best Powermock code snippet using powermock.classloading.ObjenesisClassloaderExecutorTest.transform

Source:ObjenesisClassloaderExecutorTest.java

...18import org.junit.Test;19import org.powermock.classloading.SingleClassloaderExecutor;20import org.powermock.core.classloader.MockClassLoader;21import org.powermock.core.classloader.javassist.JavassistMockClassLoader;22import org.powermock.core.transformers.ClassWrapper;23import org.powermock.core.transformers.MockTransformer;24import org.powermock.core.transformers.support.DefaultMockTransformerChain;25import powermock.classloading.classes.MyArgument;26import powermock.classloading.classes.MyClass;27import powermock.classloading.classes.MyEnum;28import powermock.classloading.classes.MyEnumHolder;29import powermock.classloading.classes.MyHierarchicalFieldHolder;30import powermock.classloading.classes.MyIntegerHolder;31import powermock.classloading.classes.MyPrimitiveArrayHolder;32import powermock.classloading.classes.MyReferenceFieldHolder;33import powermock.classloading.classes.MyReturnValue;34import powermock.classloading.classes.ReflectionMethodInvoker;35import java.lang.reflect.Method;36import java.util.concurrent.Callable;37import static org.junit.Assert.assertArrayEquals;38import static org.junit.Assert.assertEquals;39import static org.junit.Assert.assertFalse;40import static org.junit.Assert.assertSame;41@Ignore("Test are failed on JDK more that 1.6. On Travis we can run only on JDK8 and JDK9")42public class ObjenesisClassloaderExecutorTest {43    44    @Test45    public void loadsObjectGraphInSpecifiedClassloaderAndReturnsResultInOriginalClassloader() throws Exception {46        MockClassLoader classloader = createClassloader();47        final MyReturnValue expectedConstructorValue = new MyReturnValue(new MyArgument("first value"));48        final MyClass myClass = new MyClass(expectedConstructorValue);49        final MyArgument expected = new MyArgument("A value");50        MyReturnValue[] actual = new SingleClassloaderExecutor(classloader).execute(new Callable<MyReturnValue[]>() {51            public MyReturnValue[] call() throws Exception {52                assertEquals(JavassistMockClassLoader.class.getName(), this.getClass()53                                                                           .getClassLoader()54                                                                           .getClass()55                                                                           .getName());56                return myClass.myMethod(expected);57            }58        });59        60        assertFalse(MockClassLoader.class.getName().equals(this.getClass().getClassLoader().getClass().getName()));61        62        final MyReturnValue myReturnValue = actual[0];63        assertEquals(expectedConstructorValue.getMyArgument().getValue(), myReturnValue.getMyArgument().getValue());64        assertEquals(expected.getValue(), actual[1].getMyArgument().getValue());65    }66    67    @Test68    public void loadsObjectGraphThatIncludesPrimitiveValuesInSpecifiedClassloaderAndReturnsResultInOriginalClassloader()69        throws Exception {70        MockClassLoader classloader = createClassloader();71        final Integer expected = 42;72        final MyIntegerHolder myClass = new MyIntegerHolder(expected);73        Integer actual = new SingleClassloaderExecutor(classloader).execute(new Callable<Integer>() {74            public Integer call() throws Exception {75                assertEquals(JavassistMockClassLoader.class.getName(), this.getClass()76                                                                           .getClassLoader()77                                                                           .getClass()78                                                                           .getName());79                final int myInteger = myClass.getMyInteger();80                assertEquals((int) expected, myInteger);81                return myInteger;82            }83        });84        85        assertFalse(MockClassLoader.class.getName().equals(this.getClass().getClassLoader().getClass().getName()));86        87        assertEquals(expected, actual);88    }89    90    @Test91    public void loadsObjectGraphThatIncludesEnumsInSpecifiedClassloaderAndReturnsResultInOriginalClassloader()92        throws Exception {93        MockClassLoader classloader = createClassloader();94        final MyEnum expected = MyEnum.MyEnum1;95        final MyEnumHolder myClass = new MyEnumHolder(expected);96        MyEnum actual = new SingleClassloaderExecutor(classloader).execute(new Callable<MyEnum>() {97            public MyEnum call() throws Exception {98                assertEquals(JavassistMockClassLoader.class.getName(), this.getClass()99                                                                           .getClassLoader()100                                                                           .getClass()101                                                                           .getName());102                MyEnum myEnum = myClass.getMyEnum();103                assertEquals(expected, myEnum);104                return myEnum;105            }106        });107        108        assertFalse(MockClassLoader.class.getName().equals(this.getClass().getClassLoader().getClass().getName()));109        assertEquals(expected, actual);110    }111    112    113    @Test114    public void loadsObjectGraphThatIncludesPrimitiveArraysInSpecifiedClassloaderAndReturnsResultInOriginalClassloader()115        throws Exception {116        MockClassLoader classloader = createClassloader();117        final int[] expected = new int[]{1, 2};118        final MyPrimitiveArrayHolder myClass = new MyPrimitiveArrayHolder(expected);119        int[] actual = new SingleClassloaderExecutor(classloader).execute(new Callable<int[]>() {120            public int[] call() throws Exception {121                assertEquals(JavassistMockClassLoader.class.getName(), this.getClass()122                                                                           .getClassLoader()123                                                                           .getClass()124                                                                           .getName());125                int[] myArray = myClass.getMyArray();126                assertArrayEquals(expected, myArray);127                return myArray;128            }129        });130        131        assertFalse(MockClassLoader.class.getName().equals(this.getClass().getClassLoader().getClass().getName()));132        assertArrayEquals(expected, actual);133    }134    135    @Test136    public void usesReferenceCloningWhenTwoFieldsPointToSameInstance() throws Exception {137        final MockClassLoader classloader = createClassloader();138        final MyReferenceFieldHolder tested = new MyReferenceFieldHolder();139        assertSame(tested.getMyArgument1(), tested.getMyArgument2());140        assertSame(tested.getMyArgument1(), MyReferenceFieldHolder.MY_ARGUMENT);141        new SingleClassloaderExecutor(classloader).execute(new Runnable() {142            public void run() {143                assertEquals(JavassistMockClassLoader.class.getName(), this.getClass()144                                                                           .getClassLoader()145                                                                           .getClass()146                                                                           .getName());147                assertEquals(tested.getMyArgument1(), tested.getMyArgument2());148                assertEquals(tested.getMyArgument1(), MyReferenceFieldHolder.MY_ARGUMENT);149                assertSame(tested.getMyArgument1(), tested.getMyArgument2());150                // FIXME: This assertion should work:151                // assertSame(tested.getMyArgument1(), MyReferenceFieldHolder.MY_ARGUMENT);152            }153        });154    }155    156    @Test157    public void worksWithObjectHierarchy() throws Exception {158        final MockClassLoader classloader = createClassloader();159        final MyHierarchicalFieldHolder tested = new MyHierarchicalFieldHolder();160        assertSame(tested.getMyArgument1(), tested.getMyArgument2());161        assertEquals(tested.getMyArgument3(), tested.getMyArgument2());162        new SingleClassloaderExecutor(classloader).execute(new Runnable() {163            public void run() {164                assertEquals(JavassistMockClassLoader.class.getName(), this.getClass()165                                                                           .getClassLoader()166                                                                           .getClass()167                                                                           .getName());168                assertSame(tested.getMyArgument1(), tested.getMyArgument2());169                assertEquals(tested.getMyArgument3(), tested.getMyArgument2());170            }171        });172    }173    174    @Test175    public void worksWithReflection() throws Exception {176        final MockClassLoader classloader = createClassloader();177        final MyArgument myArgument = new MyArgument("test");178        final MyReturnValue instance = new MyReturnValue(myArgument);179        Method method = instance.getClass().getMethod("getMyArgument");180        final ReflectionMethodInvoker tested = new ReflectionMethodInvoker(method, instance);181        new SingleClassloaderExecutor(classloader).execute(new Runnable() {182            public void run() {183                Object invoke = tested.invoke();184                assertSame(invoke, myArgument);185            }186        });187    }188    189    private MockClassLoader createClassloader() {190        MockClassLoader classloader = new JavassistMockClassLoader(new String[]{MyClass.class.getName(),191            MyArgument.class.getName(), MyReturnValue.class.getName()});192        MockTransformer mainMockTransformer = new MockTransformer<Object>() {193            @Override194            public ClassWrapper<Object> transform(ClassWrapper<Object> clazz) throws Exception {195                return clazz;196            }197        };198        classloader.setMockTransformerChain(DefaultMockTransformerChain.newBuilder()199                                                                       .append(mainMockTransformer)200                                                                       .build());201        return classloader;202    }203}...

transform

Using AI Code Generation

1[INFO] [INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ powermock-classloading ---2[INFO] [INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ powermock-classloading ---3[INFO] [INFO] --- maven-surefire-plugin:2.17:test (default-test) @ powermock-classloading ---4[INFO] [INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ powermock-classloading ---5[INFO] [INFO] --- maven-assembly-plugin:2.2-beta-5:single (make-assembly) @ powermock-classloading ---6[INFO] [INFO] --- maven-install-plugin:2.4:install (default-install) @ powermock-classloading ---

transform

Using AI Code Generation

1public void testTransform() throws Exception {2        final ClassLoader classLoader = Thread.currentThread().getContextClassLoader();3        final Class<?> clazz = classLoader.loadClass(ObjenesisClassloaderExecutorTest.class.getName());4        final byte[] transformed = executor.transform(classLoader, clazz.getName(), null, null, null);5        final Class<?> transformedClass = defineClass(clazz.getName(), transformed, 0, transformed.length);6        assertEquals(ObjenesisClassloaderExecutorTest.class, transformedClass);7    }8    private Class<?> defineClass(final String name, final byte[] bytes, final int offset, final int length) {9        return (Class<?>) defineClass.invoke(classLoader, name, bytes, offset, length);10    }11    private static class DefineClass extends MockUp<ObjenesisClassloaderExecutor> {12        private Method defineClass(final ClassLoader classLoader) throws Exception {13            return classLoader.getClass().getDeclaredMethod("defineClass", String.class, byte[].class, int.class, int.class);14        }15    }16}17package com.example; public class ObjenesisClassloaderExecutorTest { public void test() { } }

transform

Using AI Code Generation

1    [javac] import org.objenesis.instantiator.ObjectInstantiator;2    [javac] import org.objenesis.strategy.InstantiatorStrategy;3    [javac] import org.objenesis.strategy.StdInstantiatorStrategy;4    [javac] import org.objenesis.strategy.SerializingInstantiatorStrategy;5    [javac] import org.objenesis.strategy.SunReflectionFactoryInstantiatorStrategy;6    [javac] import org.objenesis.strategy.SunUnsafeFactoryInstantiatorStrategy;

transform

Using AI Code Generation

1import org.powermock.classloading.ClassloaderExecutor2import org.powermock.classloading.ClassloaderExecutorFactory3import org.powermock.classloading.MockClassLoader4import org.powermock.classloading.ObjenesisClassloaderExecutor5import org.powermock.classloading.ObjenesisClassloaderExecutorTest6public class TestClass {7    public static void main(String[] args) {8        ClassLoader classLoader = new MockClassLoader()9        ClassloaderExecutorFactory.setClassloaderExecutor(new ObjenesisClassloaderExecutor(classLoader))10        ClassloaderExecutor executor = ClassloaderExecutorFactory.getClassloaderExecutor()11        Class<?> clazz = executor.execute(ObjenesisClassloaderExecutorTest.class.getName())12        System.out.println(clazz)13    }14}

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