Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

How to use ParameterWritingVisitorWrapper method of org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator class

Best Mockito code snippet using org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator.ParameterWritingVisitorWrapper

Source:InlineBytecodeGenerator.java

...144        } else {145            try {146                return byteBuddy.redefine(classBeingRedefined, ClassFileLocator.Simple.of(classBeingRedefined.getName(), classfileBuffer))147                        // Note: The VM erases parameter meta data from the provided class file (bug). We just add this information manually.148                        .visit(new ParameterWritingVisitorWrapper(classBeingRedefined))149                        .visit(Advice.withCustomMapping()150                                .bind(MockMethodAdvice.Identifier.class, identifier)151                                .to(MockMethodAdvice.class).on(isVirtual()152                                        .and(not(isBridge().or(isHashCode()).or(isEquals()).or(isDefaultFinalizer())))153                                        .and(not(isDeclaredBy(nameStartsWith("java.")).<MethodDescription>and(isPackagePrivate())))))154                        .visit(Advice.withCustomMapping()155                                .bind(MockMethodAdvice.Identifier.class, identifier)156                                .to(MockMethodAdvice.ForHashCode.class).on(isHashCode()))157                        .visit(Advice.withCustomMapping()158                                .bind(MockMethodAdvice.Identifier.class, identifier)159                                .to(MockMethodAdvice.ForEquals.class).on(isEquals()))160                        .make()161                        .getBytes();162            } catch (Throwable throwable) {163                lastException = throwable;164                return null;165            }166        }167    }168    private static class ParameterWritingVisitorWrapper extends AsmVisitorWrapper.AbstractBase {169        private final Class<?> type;170        private ParameterWritingVisitorWrapper(Class<?> type) {171            this.type = type;172        }173        @Override174        public ClassVisitor wrap(TypeDescription instrumentedType,175                                 ClassVisitor classVisitor,176                                 Implementation.Context implementationContext,177                                 TypePool typePool,178                                 FieldList<FieldDescription.InDefinedShape> fields,179                                 MethodList<?> methods,180                                 int writerFlags,181                                 int readerFlags) {182            return implementationContext.getClassFileVersion().isAtLeast(ClassFileVersion.JAVA_V8)183                    ? new ParameterAddingClassVisitor(classVisitor, new TypeDescription.ForLoadedType(type))184                    : classVisitor;...

ParameterWritingVisitorWrapper

Using AI Code Generation

1import org.mockito.cglib.proxy.Enhancer;2import org.mockito.cglib.proxy.MethodInterceptor;3import org.mockito.cglib.proxy.MethodProxy;4import org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator;5import org.mockito.internal.creation.bytebuddy.MockMethodInterceptor;6import org.mockito.internal.creation.bytebuddy.MockMethodInterceptor.DispatcherDefaultingToRealMethod;7import org.mockito.internal.creation.bytebuddy.MockMethodInterceptor.ForAbstractMethodsOnly;8import org.mockito.invocation.MockHandler;9import org.mockito.mock.MockCreationSettings;10import org.mockito.plugins.MockMaker;11import java.lang.reflect.Method;12public class CustomMockMaker implements MockMaker {13    public <T> T createMock(MockCreationSettings<T> settings, MockHandler handler) {14        return (T) Enhancer.create(settings.getTypeToMock(), new MethodInterceptor() {15            public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {16                if (method.getDeclaringClass() == Object.class) {17                    return method.invoke(o, objects);18                }19                DispatcherDefaultingToRealMethod dispatcher = new DispatcherDefaultingToRealMethod(o, handler);20                ForAbstractMethodsOnly interceptor = new ForAbstractMethodsOnly(dispatcher);21                return interceptor.intercept(o, method, objects, new InlineBytecodeGenerator().ParameterWritingVisitorWrapper(method));22            }23        });24    }25    public MockHandler getHandler(Object o) {26        return null;27    }28    public void resetMock(Object o, MockHandler mockHandler, MockCreationSettings mockCreationSettings) {29    }30    public TypeMockability isTypeMockable(Class<?> aClass) {31        return TypeMockability.MOCKABLE;32    }33}34import net.bytebuddy.ByteBuddy;35import net.bytebuddy.asm.Advice;36import net.bytebuddy.description.method.MethodDescription;37import net.bytebuddy.dynamic.DynamicType;38import net.bytebuddy.dynamic.loading.ClassLoadingStrategy;39import net.bytebuddy.implementation.MethodDelegation;40import net.bytebuddy.matcher.ElementMatchers;41import org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator;42import java.lang.reflect.Method;43import static net.bytebuddy.matcher.ElementMatchers.named;44public class CustomMockMaker2 implements MockMaker {

ParameterWritingVisitorWrapper

Using AI Code Generation

1public class ByteBuddyTest {2    public static void main(String[] args) throws Exception {3        Class<? extends Car> mockClass = new ByteBuddy()4                .subclass(Car.class)5                .method(ElementMatchers.named("drive"))6                .intercept(FixedValue.value("Hello World!"))7                .make()8                .load(ByteBuddyTest.class.getClassLoader())9                .getLoaded();10        Car car = mockClass.newInstance();11        System.out.println(car.drive());12    }13}

ParameterWritingVisitorWrapper

Using AI Code Generation

1public class ParameterWritingVisitorWrapper implements ByteBuddyClassVisitorWrapper {2    private final File file;3    private final String methodName;4    private final String[] methodParameterTypes;5    public ParameterWritingVisitorWrapper(File file, String methodName, String[] methodParameterTypes) {6        this.file = file;7        this.methodName = methodName;8        this.methodParameterTypes = methodParameterTypes;9    }10    public ClassVisitor wrap(TypeDescription instrumentedType, ClassVisitor classVisitor, Implementation.Context implementationContext, TypePool typePool, FieldList<FieldDescription.InDefinedShape> fields, MethodList<?> methods, int writerFlags, int readerFlags) {11        return new ClassVisitor(Opcodes.ASM5, classVisitor) {12            public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {13                MethodVisitor methodVisitor = super.visitMethod(access, name, descriptor, signature, exceptions);14                return new MethodVisitor(Opcodes.ASM5, methodVisitor) {15                    public void visitMethodInsn(int opcode, String owner, String name, String descriptor, boolean isInterface) {16                        if (opcode == Opcodes.INVOKESPECIAL && name.equals(methodName)) {17                            if (descriptor.equals(methodParameterTypes[0])) {18                                for (int i = 1; i < methodParameterTypes.length; i++) {19                                    visitVarInsn(Opcodes.ALOAD, i);20                                    visitFieldInsn(Opcodes.GETFIELD, "java/lang/Integer", "value", "I");21                                    visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/String", "valueOf", "(I)Ljava/lang/String;", false);22                                    visitMethodInsn(Opcodes.INVOKESTATIC, "java/lang/System", "out", "(Ljava/lang/String;)V", false);23                                }24                            }25                        }26                        super.visitMethodInsn(opcode, owner, name, descriptor, isInterface);27                    }28                };29            }30        };31    }32}33public class ParameterWritingVisitorWrapper implements ByteBuddyClassVisitorWrapper {34    private final File file;35    private final String methodName;36    private final String[] methodParameterTypes;

ParameterWritingVisitorWrapper

Using AI Code Generation

1import net.bytebuddy.ByteBuddy;2import net.bytebuddy.description.method.MethodDescription;3import net.bytebuddy.description.method.ParameterList;4import net.bytebuddy.description.type.TypeDescription;5import net.bytebuddy.dynamic.DynamicType;6import net.bytebuddy.dynamic.loading.ClassLoadingStrategy;7import net.bytebuddy.implementation.MethodDelegation;8import net.bytebuddy.implementation.bind.annotation.*;9import net.bytebuddy.matcher.ElementMatchers;10import net.bytebuddy.utility.JavaModule;11import org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator;12import org.mockito.internal.creation.bytebuddy.MockMethodInterceptor;13import org.mockito.internal.invocation.*;14import org.mockito.invocation.*;15import org.mockito.mock.*;16import org.mockito.plugins.*;17import org.mockito.stubbing.*;18import java.io.*;19import java.lang.reflect.*;20import java.util.*;21public class ParameterWritingVisitorWrapper implements MockMaker, Plugin {22    public static final String FILE_NAME = "mocked_parameters.txt";23    public MockHandlerFactory getHandlerFactory() {24        return new MockHandlerFactory() {25            public MockHandler create(MockCreationSettings<?> settings, MockHandler handler) {26                return new MockHandler() {27                    public Object handle(Invocation invocation) throws Throwable {28                        if (invocation instanceof MockMethodInvocation) {29                            MockMethodInvocation mockMethodInvocation = (MockMethodInvocation) invocation;30                            Method method = mockMethodInvocation.getMethod();31                            Object[] arguments = mockMethodInvocation.getArguments();32                            writeParametersToFile(method, arguments);33                        }34                        return handler.handle(invocation);35                    }36                };37            }38        };39    }40    private void writeParametersToFile(Method method, Object[] arguments) {41        try (FileWriter fileWriter = new FileWriter(FILE_NAME, true);42             BufferedWriter bufferedWriter = new BufferedWriter(fileWriter);43             PrintWriter printWriter = new PrintWriter(bufferedWriter)) {44            printWriter.println("Method: " + method.getName());45            for (int i = 0; i < arguments.length; i++) {46                printWriter.println("Parameter " + i + ": " + arguments[i]);47            }48            printWriter.println();49        } catch (IOException e) {50            e.printStackTrace();51        }52    }53    public TypeMockability isTypeMockable(TypeDescription typeDescription) {

ParameterWritingVisitorWrapper

Using AI Code Generation

1import static net.bytebuddy.matcher.ElementMatchers.named;2import static net.bytebuddy.matcher.ElementMatchers.takesArguments;3import java.io.File;4import java.io.FileOutputStream;5import java.io.IOException;6import java.io.OutputStream;7import net.bytebuddy.ByteBuddy;8import net.bytebuddy.description.method.MethodDescription;9import net.bytebuddy.description.type.TypeDescription;10import net.bytebuddy.dynamic.DynamicType;11import net.bytebuddy.dynamic.loading.ClassLoadingStrategy;12import net.bytebuddy.implementation.FixedValue;13import net.bytebuddy.implementation.MethodDelegation;14import net.bytebuddy.implementation.bind.annotation.RuntimeType;15import net.bytebuddy.implementation.bind.annotation.SuperCall;16import net.bytebuddy.implementation.bind.annotation.This;17import net.bytebuddy.matcher.ElementMatcher;18import net.bytebuddy.utility.JavaModule;19import org.mockito.internal.creation.bytebuddy.InlineBytecodeGenerator;20import org.mockito.invocation.InvocationOnMock;21import org.mockito.stubbing.Answer;22public class ByteBuddyTest {23    public static void main(String[] args) throws Exception {24        DynamicType.Unloaded<?> dynamicType = new ByteBuddy()25                .subclass(Object.class)26                .name("com.example.Foo")27                .method(ElementMatchers.named("toString"))28                .intercept(FixedValue.value("Hello World!"))29                .method(ElementMatchers.named("equals"))30                .intercept(MethodDelegation.to(EqualsInterceptor.class))31                .make();32        Class<?> type = dynamicType.load(ByteBuddyTest.class.getClassLoader(),33                ClassLoadingStrategy.Default.WRAPPER).getLoaded();34        File file = new File(type.getSimpleName() + ".class");35        OutputStream os = new FileOutputStream(file);36        InlineBytecodeGenerator.ParameterWritingVisitorWrapper visitorWrapper = new InlineBytecodeGenerator.ParameterWritingVisitorWrapper(os);37        dynamicType.accept(visitorWrapper);38        os.close();39        Object foo = type.newInstance();40        System.out.println(foo);

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.