Unlock 30% off on Manual Testing Annual Plans this Holiday Season. 
Use Code: LCMYEARENDEXCL30
Use Code: LCMYEARENDEXCL30Check icon
Copied to Clipboard!
How to use AbstractJavaAssistMockTransformer class of org.powermock.core.transformers.javassist package
Best Powermock code snippet using org.powermock.core.transformers.javassist.AbstractJavaAssistMockTransformer
Source:MockTransformerTestHelper.java 
...18package org.powermock.core.transformers;19import org.powermock.core.MockGateway;20import org.powermock.core.classloader.javassist.JavassistMockClassLoader;21import org.powermock.core.test.MockClassLoaderFactory;22import org.powermock.core.transformers.javassist.AbstractJavaAssistMockTransformer;23import org.powermock.core.transformers.support.DefaultMockTransformerChain;24import org.powermock.reflect.internal.WhiteboxImpl;25import java.lang.reflect.Constructor;26import java.lang.reflect.Field;27import java.util.ArrayList;28import java.util.Collection;29import java.util.List;30class MockTransformerTestHelper {31 32 static Collection<Object[]> createTransformerTestData(final Class<?>... transformerClass) {33 return createTransformerTestDataWithMockGateway(MockGateway.class, transformerClass);34 }35 36 static Collection<Object[]> createTransformerTestDataWithMockGateway(final Class<?> mockGateway, final Class<?>... transformerClass) {37 List<Object[]> data = new ArrayList<Object[]>();38 39 for (TransformStrategy strategy : TransformStrategy.values()) {40 List<MockTransformerChain> transformerChains = createTransformers(mockGateway, strategy, transformerClass);41 42 for (MockTransformerChain mockTransformer : transformerChains) {43 data.add(new Object[]{44 strategy,45 mockTransformer,46 createClassLoaderFactory(transformerClass[0])47 });48 }49 }50 51 return data;52 }53 54 static Collection<Object[]> createOneTransformerTestData(final Class<?> transformerClass) {55 return createOneTransformerTestData(MockGateway.class, transformerClass);56 }57 58 static Collection<Object[]> createOneTransformerTestData(final Class<?> mockGateway, final Class<?> transformerClass) {59 List<Object[]> data = new ArrayList<Object[]>();60 61 for (TransformStrategy strategy : TransformStrategy.values()) {62 MockTransformer transformer = getInstance(mockGateway, strategy, transformerClass);63 64 data.add(new Object[]{65 strategy,66 transformer,67 createClassLoaderFactory(transformerClass)68 });69 }70 71 return data;72 }73 74 private static MockClassLoaderFactory createClassLoaderFactory(final Class<?> transformerClass) {75 if (AbstractJavaAssistMockTransformer.class.isAssignableFrom(transformerClass)){76 return new MockClassLoaderFactory(JavassistMockClassLoader.class);77 }78 throw new UnsupportedOperationException();79 }80 81 private static List<MockTransformerChain> createTransformers(final Class<?> mockGateway, final TransformStrategy strategy, final Class<?>... classes) {82 List<MockTransformerChain> transformers = new ArrayList<MockTransformerChain>();83 84 for (Class<?> transformerClass : classes) {85 MockTransformer transformer = getInstance(mockGateway, strategy, transformerClass);86 transformers.add(createChainFrom(transformer));87 }88 89 return transformers;...
Source:AbstractJavaAssistMockTransformer.java
...19import javassist.CtClass;20import org.powermock.core.transformers.ClassWrapper;21import org.powermock.core.transformers.MockTransformer;22import org.powermock.core.transformers.TransformStrategy;23public abstract class AbstractJavaAssistMockTransformer implements MockTransformer<CtClass> {24 25 private final TransformStrategy strategy;26 27 public AbstractJavaAssistMockTransformer(TransformStrategy strategy) {28 this.strategy = strategy;29 }30 31 @Override32 public ClassWrapper<CtClass> transform(final ClassWrapper<CtClass> clazz) throws Exception {33 if (clazz.unwrap() instanceof CtClass) {34 CtClass classImpl = clazz.unwrap();35 36 if (classImpl != null) {37 transform(classImpl);38 }39 }40 41 return clazz;...
AbstractJavaAssistMockTransformer
Using AI Code Generation
1import org.powermock.core.transformers.javassist.AbstractJavaAssistMockTransformer;2import org.powermock.core.transformers.javassist.JavaAssistMockTransformer;3import org.powermock.core.transformers.javassist.MockTransformer;4import org.powermock.reflect.Whitebox;5import org.powermock.reflect.internal.WhiteboxImpl;6import org.powermock.tests.utils.impl.MockTransformerChain;7import org.powermock.tests.utils.impl.MockTransformerChainFactory;8import org.powermock.tests.utils.impl.MockTransformerChainFactoryImpl;9import org.pow
AbstractJavaAssistMockTransformer
Using AI Code Generation
1public class TransformerTest {2 public static void main(String[] args) {3 AbstractJavaAssistMockTransformer transformer = new AbstractJavaAssistMockTransformer() {4 public void transform(ClassPool classPool, ClassLoader classLoader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException {5 System.out.println("Class name: " + className);6 }7 };8 transformer.transform(null, null, "org.example.Test", null, null, null);9 }10}
AbstractJavaAssistMockTransformer
Using AI Code Generation
1public class AbstractJavaAssistMockTransformerTest {2 public void testAbstractJavaAssistMockTransformer() throws Exception {3 AbstractJavaAssistMockTransformer mockTransformer = new AbstractJavaAssistMockTransformer();4 Class<?> clazz = mockTransformer.transform(Class.forName("org.powermock.core.transformers.javassist.ClassWithStaticMethods"));5 ClassWithStaticMethods classWithStaticMethods = (ClassWithStaticMethods) clazz.newInstance();6 classWithStaticMethods.callStaticMethod();7 classWithStaticMethods.callStaticMethodWithArguments(1, 2);8 }9}10public class AbstractJavaAssistMockTransformerTest {11 public void testAbstractJavaAssistMockTransformer() throws Exception {12 AbstractJavaAssistMockTransformer mockTransformer = new AbstractJavaAssistMockTransformer();13 Class<?> clazz = mockTransformer.transform(Class.forName("org.powermock.core.transformers.javassist.ClassWithStaticMethods"));14 ClassWithStaticMethods classWithStaticMethods = (ClassWithStaticMethods) clazz.newInstance();15 classWithStaticMethods.callStaticMethod();16 classWithStaticMethods.callStaticMethodWithArguments(1, 2);17 }18}19public class AbstractJavaAssistMockTransformerTest {20 public void testAbstractJavaAssistMockTransformer() throws Exception {21 AbstractJavaAssistMockTransformer mockTransformer = new AbstractJavaAssistMockTransformer();22 Class<?> clazz = mockTransformer.transform(Class.forName("org.powermock.core.transformers.javassist.ClassWithStaticMethods"));23 ClassWithStaticMethods classWithStaticMethods = (ClassWithStaticMethods) clazz.newInstance();24 classWithStaticMethods.callStaticMethod();25 classWithStaticMethods.callStaticMethodWithArguments(1, 2);26 }27}28public class AbstractJavaAssistMockTransformerTest {29 public void testAbstractJavaAssistMockTransformer() throws Exception {
AbstractJavaAssistMockTransformer
Using AI Code Generation
1import org.powermock.core.transformers.javassist.AbstractJavaAssistMockTransformer;2public class 4 extends AbstractJavaAssistMockTransformer {3 public 4() {4 super("org.powermock.core.transformers.javassist.AbstractJavaAssistMockTransformer");5 }6 public void transform(ClassPool classPool, String className, ClassLoader classLoader, ProtectionDomain protectionDomain) throws Exception {7 CtClass ctClass = classPool.get(className);8 if (ctClass.isFrozen()) {9 ctClass.defrost();10 }11 }12}13import org.junit.After;14import org.junit.Before;15import org.junit.Test;16import org.powermock.api.mockito.PowerMockito;17import org.powermock.core.transformers.javassist.AbstractJavaAssistMockTransformer;18import org.powermock.modules.junit4.PowerMockRunner;19import org.powermock.modules.junit4.PowerMockRunnerDelegate;20import org.powermock.reflect.Whitebox;21import org.powermock.reflect.exceptions.FieldNotFoundException;22import org.powermock.reflect.exceptions.MethodNotFoundException;23import org.powermock.reflect.exceptions.TooManyMethodsFoundException;24import org.powermock.reflect.internal.WhiteboxImpl;25import org.powermock.reflect.internal.WhiteboxImpl.FieldHolder;26import org.powermock.reflect.internal.WhiteboxImpl.MethodHolder;27import org.powermock.utils.ReflectException;28import org.powermock.utils.SmartStackTraceParser;29import org.powermock.utils.SmartStackTraceParser.StackTraceElementHolder;30import org.powermock.utils.SmartStackTraceParserTest;31import org.powermock.utils.SmartStackTraceParserTest.StackTraceElementHolderForTest;32import org.powermock.utils.impl.SmartStackTraceParserImpl;33import org.powermock.utils.impl.SmartStackTraceParserImplTest;34import org.powermock.utils.impl.SmartStackTraceParserImplTest.StackTraceElementHolderForTestImpl;35import org.powermock.utils.impl.StackTraceFilterImpl;36import org.powermock.utils.impl.StackTraceFilterImplTest;37import org.powermock.utils.impl.StackTraceFilter
AbstractJavaAssistMockTransformer
Using AI Code Generation
1package com.powermock;2import java.util.List;3import java.util.Map;4import org.powermock.core.transformers.javassist.AbstractJavaAssistMockTransformer;5public class MockTransformer extends AbstractJavaAssistMockTransformer {6 public MockTransformer() {7 super("com.powermock");8 }9 protected void transformClass(Class<?> classToTransform, ClassPool classPool,10 CtClass ctClass) throws Exception {11 if (classToTransform.equals(Map.class)) {12 CtMethod method = ctClass.getDeclaredMethod("put");13 method.insertBefore("System.out.println(\"Before method\");");14 method.insertAfter("System.out.println(\"After method\");");15 }16 }17 protected boolean canTransform(Class<?> classToTransform) {18 return classToTransform.equals(Map.class) || classToTransform.equals(List.class);19 }20}21package com.powermock;22import java.util.Map;23import org.powermock.core.transformers.javassist.PowerMockAgent;24public class MockTransformer {25 public static void main(String[] args) {26 try {27 PowerMockAgent.initializeIfNeeded();28 Map<String, String> map = new HashMap<String, String>();29 map.put("1", "one");30 } catch (Exception e) {31 e.printStackTrace();32 }33 }34}35package com.powermock;36import java.util.Map;37import org.powermock.core.transformers.javassist.PowerMockAgent;38public class MockTransformer {39 public static void main(String[] args) {40 try {41 PowerMockAgent.initializeIfNeeded();42 Map<String, String> map = new HashMap<String, String>();43 map.put("1", "one");44 } catch (Exception e) {45 e.printStackTrace();46 }47 }48}49package com.powermock;50import java.util.Map;51import org.powermock.core.transformers.javassist.PowerMockAgent;52public class MockTransformer {53 public static void main(String[] args) {54 try {
AbstractJavaAssistMockTransformer
Using AI Code Generation
1public class MockStaticMethods {2 public static void main(String[] args) {3 AbstractJavaAssistMockTransformer transformer = new AbstractJavaAssistMockTransformer();4 transformer.setClassToTransform(StaticMethods.class);5 transformer.setMockTransformer(new MockTransformer() {6 public void transform(ClassPool classPool, CtClass ctClass) throws Exception {7 CtMethod method = ctClass.getDeclaredMethod("staticMethod");8 method.insertBefore("return \"Hello World!\";");9 }10 });11 transformer.transform();12 System.out.println(StaticMethods.staticMethod());13 }14}15public class MockStaticMethods {16 public static void main(String[] args) {17 AbstractJavaAssistMockTransformer transformer = new AbstractJavaAssistMockTransformer();18 transformer.setClassToTransform(StaticMethods.class);19 transformer.setMockTransformer(new MockTransformer() {20 public void transform(ClassPool classPool, CtClass ctClass) throws Exception {21 CtMethod method = ctClass.getDeclaredMethod("staticMethod");22 method.insertBefore("return \"Hello World!\";");23 }24 });25 transformer.transform();26 System.out.println(StaticMethods.staticMethod("Hello World!"));27 }28}29public class MockStaticMethods {30 public static void main(String[] args) {31 AbstractJavaAssistMockTransformer transformer = new AbstractJavaAssistMockTransformer();32 transformer.setClassToTransform(StaticMethods.class);33 transformer.setMockTransformer(new MockTransformer() {34 public void transform(ClassPool classPool, CtClass ctClass) throws Exception {35 CtMethod method = ctClass.getDeclaredMethod("staticMethod");36 method.insertBefore("return \"Hello World!\";");37 }38 });39 transformer.transform();40 System.out.println(StaticMethods.staticMethod("Hello World!", 100));41 }42}43public class MockStaticMethods {
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.
LambdaTest Learning Hubs:
- JUnit Tutorial
- TestNG Tutorial
- Webdriver Tutorial
- WebDriverIO Tutorial
- Protractor Tutorial
- Selenium 4 Tutorial
- Jenkins Tutorial
- NUnit Tutorial
- Jest Tutorial
- Playwright Tutorial
- Cypress Tutorial
- PyTest Tutorial
YouTube
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Run Powermock automation tests on LambdaTest cloud grid
Perform automation testing on 3000+ real desktop and mobile devices online.
Most used methods in AbstractJavaAssistMockTransformer
Try LambdaTest Now !!
Get 100 minutes of automation test minutes FREE!!
Was this article helpful?
