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How to use TransformerHelper class of org.powermock.core.transformers.javassist.support package

Best Powermock code snippet using org.powermock.core.transformers.javassist.support.TransformerHelper

Source:PowerMockExpressionEditor.java

...33import org.powermock.core.IndicateReloadClass;34import org.powermock.core.MockGateway;35import org.powermock.core.transformers.TransformStrategy;36import static org.powermock.core.transformers.TransformStrategy.INST_REDEFINE;37import static org.powermock.core.transformers.javassist.support.TransformerHelper.VOID;38import static org.powermock.core.transformers.javassist.support.TransformerHelper.getCorrectReturnValueType;39import static org.powermock.core.transformers.javassist.support.TransformerHelper.getReturnTypeAsString;40import static org.powermock.core.transformers.javassist.support.TransformerHelper.isNotSyntheticField;41public final class PowerMockExpressionEditor extends ExprEditor {42    43    private final CtClass clazz;44    private final Class<?> mockGetawayClass;45    private final TransformStrategy strategy;46    47    public PowerMockExpressionEditor(final TransformStrategy strategy, final CtClass clazz, final Class<?> mockGetawayClass) {48        this.strategy = strategy;49        this.clazz = clazz;50        this.mockGetawayClass = mockGetawayClass;51    }52    53    @Override54    public void edit(NewExpr e) throws CannotCompileException {55        String code = "Object instance =" +56                          MockGateway.class.getName() +57                          ".newInstanceCall($type,$args,$sig);" +58                          "if(instance != " + MockGateway.class.getName() + ".PROCEED) {" +59                          "	if(instance instanceof java.lang.reflect.Constructor) {"60                          +61                          "		$_ = ($r) sun.reflect.ReflectionFactory.getReflectionFactory().newConstructorForSerialization($type, java.lang.Object.class.getDeclaredConstructor(null)).newInstance(null);" +62                          "	} else {" +63                          "		$_ = ($r) instance;" +64                          "	}" +65                          "} else {" +66                          "	$_ = $proceed($$);" +67                          "}";68        // TODO Change to objenisis instead69        e.replace(code);70    }71    72    @Override73    public void edit(MethodCall m) throws CannotCompileException {74        try {75            final CtMethod method = m.getMethod();76            final CtClass declaringClass = method.getDeclaringClass();77            78            if (declaringClass != null) {79                if (TransformerHelper.shouldTreatAsSystemClassCall(declaringClass)) {80                    StringBuilder code = new StringBuilder();81                    code.append("{Object classOrInstance = null; if($0!=null){classOrInstance = $0;} else { classOrInstance = $class;}");82                    code.append("Object value =  ")83                        .append(MockGateway.class.getName())84                        .append(".methodCall(")85                        .append("classOrInstance,\"")86                        .append(m.getMethodName())87                        .append("\",$args, $sig,\"")88                        .append(getReturnTypeAsString(method))89                        .append("\");");90                    code.append("if(value == ").append(MockGateway.class.getName()).append(".PROCEED) {");91                    code.append("	$_ = $proceed($$);");92                    code.append("} else {");93                    final String correctReturnValueType = getCorrectReturnValueType(method.getReturnType());...

Source:MethodMockTransformer.java

...22import javassist.Modifier;23import javassist.NotFoundException;24import org.powermock.core.MockGateway;25import org.powermock.core.transformers.TransformStrategy;26import static org.powermock.core.transformers.javassist.support.TransformerHelper.VOID;27import static org.powermock.core.transformers.javassist.support.TransformerHelper.getCorrectReturnValueType;28import static org.powermock.core.transformers.javassist.support.TransformerHelper.getReturnTypeAsString;29import static org.powermock.core.transformers.javassist.support.TransformerHelper.shouldSkipMethod;30abstract class MethodMockTransformer extends AbstractJavaAssistMockTransformer {31    32    private Class<?> mockGetawayClass;33    34    MethodMockTransformer(final TransformStrategy strategy) {35        super(strategy);36        this.mockGetawayClass = MockGateway.class;37    }38    39    void modifyMethod(final CtMethod method) throws NotFoundException, CannotCompileException {40        41        if (!shouldSkipMethod(method)) {42            43            // Lookup the method return type...

TransformerHelper

Using AI Code Generation

1package org.powermock.core.transformers.javassist.support;2import org.powermock.core.transformers.javassist.JavassistMockTransformer;3import org.powermock.core.transformers.javassist.JavassistMockTransformerFactory;4import org.powermock.core.transformers.javassist.JavassistMockTransformerFactoryImpl;5import org.powermock.core.transformers.javassist.support.internal.JavassistMockTransformerImpl;6import org.powermock.core.transformers.javassist.support.internal.JavassistMockTransformerImplFactory;7import org.powermock.core.transformers.support.MockTransformer;8import java.io.IOException;9import java.lang.instrument.IllegalClassFormatException;10import java.security.ProtectionDomain;11public class TransformerHelper {12    private static final JavassistMockTransformerFactory JAVASSIST_MOCK_TRANSFORMER_FACTORY = new JavassistMockTransformerFactoryImpl();13    private static final JavassistMockTransformerImplFactory JAVASSIST_MOCK_TRANSFORMER_IMPL_FACTORY = new JavassistMockTransformerImplFactory();14    public static byte[] transform(ClassLoader loader, String className, Class<?> classBeingRedefined, ProtectionDomain protectionDomain, byte[] classfileBuffer) throws IllegalClassFormatException, IOException {15        if (classBeingRedefined == null) {16            return classfileBuffer;17        }18        final JavassistMockTransformer transformer = JAVASSIST_MOCK_TRANSFORMER_FACTORY.create(loader, classBeingRedefined);19        final MockTransformer transformerImpl = JAVASSIST_MOCK_TRANSFORMER_IMPL_FACTORY.create(transformer);20        return transformerImpl.transform(loader, className, classBeingRedefined, protectionDomain, classfileBuffer);21    }22}23package org.powermock.core.transformers.javassist.support;24import org.powermock.core.transformers.javassist.JavassistMockTransformer;25import org.powermock.core.transformers.javassist.JavassistMockTransformerFactory;26import org.powermock.core.transformers.javassist.JavassistMockTransformerFactoryImpl;27import org.powermock.core.transformers.javassist.support.internal.JavassistMockTransformerImpl;28import org.powermock.core.transformers.javassist.support.internal.JavassistMockTransformerImplFactory;29import org.powermock.core.transformers.support.MockTransformer;30import java.io.IOException;31import java.lang.instrument.IllegalClassFormatException;32import java.security.ProtectionDomain;33public class TransformerHelper {

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