How to use MaxLocalsExtractor class of org.powermock.core.bytebuddy package

Best Powermock code snippet using org.powermock.core.bytebuddy.MaxLocalsExtractor

Source:MaxLocalsExtractor.java

...19import net.bytebuddy.description.method.MethodDescription;20import net.bytebuddy.jar.asm.ClassVisitor;21import net.bytebuddy.jar.asm.MethodVisitor;22import net.bytebuddy.jar.asm.Opcodes;23public class MaxLocalsExtractor extends ClassVisitor {24    25    private MethodMaxLocals methodMaxLocals;26    27    public MaxLocalsExtractor() {28        super(Opcodes.ASM5);29    }30    31    @Override32    public MethodVisitor visitMethod(final int access, final String name, final String desc, final String signature,33                                     final String[] exceptions) {34        if (MethodDescription.CONSTRUCTOR_INTERNAL_NAME.equals(name)) {35            methodMaxLocals = new MethodMaxLocals();36            return new MaxLocalsMethodVisitor(name, desc, methodMaxLocals);37        }38        return super.visitMethod(access, name, desc, signature, exceptions);39    }40    41    public MethodMaxLocals getMethods() {...

MaxLocalsExtractor

Using AI Code Generation

1import net.bytebuddy.description.method.MethodDescription;2import net.bytebuddy.description.type.TypeDescription;3import net.bytebuddy.matcher.ElementMatcher;4import net.bytebuddy.pool.TypePool;5import net.bytebuddy.utility.JavaModule;6import org.powermock.core.bytebuddy.MaxLocalsExtractor;7import static net.bytebuddy.matcher.ElementMatchers.isDeclaredBy;8import static net.bytebuddy.matcher.ElementMatchers.isOverriddenFrom;9public class MaxLocalsExtractorTest {10    public static void main(String[] args) {11        MaxLocalsExtractor maxLocalsExtractor = new MaxLocalsExtractor();12        TypeDescription typeDescription = new TypePool.Default().describe("org.powermock.core.bytebuddy.MaxLocalsExtractorTest$Foo").resolve();13        ElementMatcher.Junction<MethodDescription> matcher = isOverriddenFrom(Foo.class)14                .and(isDeclaredBy(Foo.class));15        int maxLocals = maxLocalsExtractor.extractMaxLocals(typeDescription, matcher, JavaModule.UNSUPPORTED);16        System.out.println("Max locals: " + maxLocals);17    }18    static class Foo {

MaxLocalsExtractor

Using AI Code Generation

1private MaxLocalsExtractor maxLocalsExtractor;2private MethodDescription methodDescription;3private MethodDescription.InDefinedShape inDefinedShape;4private TypeDescription typeDescription;5public void setUp() throws Exception {6    when(methodDescription.asDefined()).thenReturn(inDefinedShape);7    when(inDefinedShape.getDeclaringType()).thenReturn(typeDescription);8    when(typeDescription.getName()).thenReturn("com.foo.Bar");9}10public void testExtractMaxLocals() throws Exception {11    when(maxLocalsExtractor.extract(any())).thenReturn(10);12    int maxLocals = maxLocalsExtractor.extract(methodDescription);13    assertThat(maxLocals, is(10));14}15public class MaxLocalsExtractorTest {16    private MaxLocalsExtractor maxLocalsExtractor;17    private MethodDescription methodDescription;18    private MethodDescription.InDefinedShape inDefinedShape;19    private TypeDescription typeDescription;20    public void setUp() throws Exception {21        maxLocalsExtractor = new MaxLocalsExtractor();22        when(methodDescription.asDefined()).thenReturn(inDefinedShape);23        when(inDefinedShape.getDeclaringType()).thenReturn(typeDescription);24        when(typeDescription.getName()).thenReturn("com.foo.Bar");25    }26    public void testExtractMaxLocals() throws Exception {27        int maxLocals = maxLocalsExtractor.extract(methodDescription);28        assertThat(maxLocals, is(10));29    }30}31public class MaxLocalsExtractorTest {32    private MaxLocalsExtractor maxLocalsExtractor;33    private MethodDescription methodDescription;34    private MethodDescription.InDefinedShape inDefinedShape;35    private TypeDescription typeDescription;36    public void setUp() throws Exception {37        maxLocalsExtractor = new MaxLocalsExtractor();38        when(methodDescription.asDefined()).thenReturn(inDefinedShape);39        when(inDefinedShape.getDeclaringType()).thenReturn(typeDescription);40        when(typeDescription.getName()).thenReturn("com.foo.Bar");41    }42    public void testExtractMaxLocals() throws Exception {43        int maxLocals = maxLocalsExtractor.extract(methodDescription);44        assertThat(maxLocals, is(10));45    }46}47public class MaxLocalsExtractorTest {48    private MaxLocalsExtractor maxLocalsExtractor;

MaxLocalsExtractor

Using AI Code Generation

1public class MaxLocalsExtractorTest {2    public void testGetMaxLocals() throws Exception {3        MethodDescription methodDescription = new MethodDescription.ForLoadedMethod(Example.class.getDeclaredMethod("foo"));4        ClassFileLocator classFileLocator = ClassFileLocator.ForClassLoader.of(Example.class.getClassLoader());5        ClassFileLocator.Resolution resolution = classFileLocator.locate(Example.class.getName());6        ClassFileLocator.Resolution.FieldAccess fieldAccess = resolution.resolve();7        byte[] classFile = fieldAccess.resolve();8        ClassFileLocator.Resolution.MethodLookup methodLookup = resolution.resolve();9        byte[] method = methodLookup.resolve(methodDescription);10        assertThat(MaxLocalsExtractor.getMaxLocals(classFile, method), is(2));11    }12}13The following code is the output of the testGetMaxLocals() method:14public class MaxLocalsExtractorTest {15    public void testGetMaxLocals() throws Exception {16        MethodDescription methodDescription = new MethodDescription.ForLoadedMethod(Example.class.getDeclaredMethod("foo"));17        ClassFileLocator classFileLocator = ClassFileLocator.ForClassLoader.of(Example.class.getClassLoader());18        ClassFileLocator.Resolution resolution = classFileLocator.locate(Example.class.getName());19        ClassFileLocator.Resolution.FieldAccess fieldAccess = resolution.resolve();20        byte[] classFile = fieldAccess.resolve();21        ClassFileLocator.Resolution.MethodLookup methodLookup = resolution.resolve();22        byte[] method = methodLookup.resolve(methodDescription);23        assertThat(MaxLocalsExtractor.getMaxLocals(classFile, method), is(3));24    }25}26The following code is the output of the testGetMaxLocals() method:

MaxLocalsExtractor

Using AI Code Generation

1package org.powermock.core.bytebuddy;2import net.bytebuddy.ByteBuddy;3import net.bytebuddy.description.method.MethodDescription;4import net.bytebuddy.dynamic.DynamicType;5import net.bytebuddy.dynamic.loading.ClassLoadingStrategy;6import net.bytebuddy.implementation.FixedValue;7import net.bytebuddy.matcher.ElementMatchers;8import org.junit.Test;9import java.lang.reflect.Method;10import static org.junit.Assert.assertEquals;11public class MaxLocalsExtractorTest {12    public void test() throws Exception {13        DynamicType.Unloaded<?> dynamicType = new ByteBuddy()14                .subclass(Object.class)15                .name("org.powermock.core.bytebuddy.TestClass")16                .method(ElementMatchers.named("test"))17                .intercept(FixedValue.value("Hello World!"))18                .make();19        Class<?> clazz = dynamicType.load(ClassLoadingStrategy.Default.WRAPPER).getLoaded();20        Method method = clazz.getMethod("test");21        int maxLocals = MaxLocalsExtractor.getMaxLocals(method);22        assertEquals(10, maxLocals);23    }24}25package org.powermock.core.bytebuddy;26import org.junit.Test;27import org.junit.runner.RunWith;28import org.junit.runners.Parameterized;29import org.junit.runners.Parameterized.Parameter;30import org.junit.runners.Parameterized.Parameters;31import org.powermock.core.bytebuddy.support.MethodDescriptionForLoadedMethod;32import java.lang.reflect.Method;33import java.util.Arrays;34import java.util.Collection;35import static org.junit.Assert.assertEquals;36@RunWith(Parameterized.class)37public class MaxLocalsExtractorTest {38    @Parameters(name = "{0}")39    public static Collection<Object[]> data() {40        return Arrays.asList(new Object[][]{41                {"

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