package net.bytebuddy.dynamic.scaffold.inline;
import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.description.method.ParameterDescription;
import net.bytebuddy.description.method.ParameterList;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.description.type.TypeList;
import net.bytebuddy.implementation.Implementation;
import net.bytebuddy.implementation.bytecode.StackManipulation;
import net.bytebuddy.implementation.bytecode.StackSize;
import net.bytebuddy.test.utility.MockitoRule;
import net.bytebuddy.test.utility.ObjectPropertyAssertion;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestRule;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.mockito.Mock;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import java.util.Arrays;
import java.util.Collection;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.mockito.Mockito.*;
@RunWith(Parameterized.class)
public class MethodRebaseResolverResolutionForRebasedMethodTest {
private static final String FOO = "foo", BAR = "bar", QUX = "qux", BAZ = "baz";
@Parameterized.Parameters
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][] {
{false, Opcodes.ACC_SYNTHETIC | Opcodes.ACC_PRIVATE},
{true, Opcodes.ACC_SYNTHETIC | Opcodes.ACC_PUBLIC}
});
}
private final boolean interfaceType;
private final int rebasedMethodModifiers;
public MethodRebaseResolverResolutionForRebasedMethodTest(boolean interfaceType, int rebasedMethodModifiers) {
this.interfaceType = interfaceType;
this.rebasedMethodModifiers = rebasedMethodModifiers;
}
@Rule
public TestRule mockitoRule = new MockitoRule(this);
@Mock
private MethodDescription.InDefinedShape methodDescription;
@Mock
private MethodNameTransformer methodNameTransformer, otherMethodNameTransformer;
@Mock
private TypeDescription instrumentedType, typeDescription, returnType, parameterType;
@Mock
private TypeDescription.Generic genericReturnType, genericParameterType;
@Mock
private MethodVisitor methodVisitor;
@Mock
private Implementation.Context implementationContext;
@Before
@SuppressWarnings("unchecked")
public void setUp() throws Exception {
when(methodDescription.getDeclaringType()).thenReturn(typeDescription);
when(methodDescription.getReturnType()).thenReturn(genericReturnType);
when(methodDescription.getInternalName()).thenReturn(FOO);
when(methodDescription.getDescriptor()).thenReturn(BAZ);
when(typeDescription.getInternalName()).thenReturn(BAR);
when(typeDescription.getDescriptor()).thenReturn(BAR);
when(instrumentedType.isInterface()).thenReturn(interfaceType);
when(methodNameTransformer.transform(methodDescription)).thenReturn(QUX);
when(otherMethodNameTransformer.transform(methodDescription)).thenReturn(FOO + BAR);
when(parameterType.getStackSize()).thenReturn(StackSize.ZERO);
when(methodDescription.getParameters()).thenReturn(new ParameterList.Explicit.ForTypes(methodDescription, genericParameterType));
when(genericReturnType.asErasure()).thenReturn(returnType);
when(genericReturnType.asRawType()).thenReturn(genericReturnType);
when(genericReturnType.accept(any(TypeDescription.Generic.Visitor.class))).thenReturn(genericReturnType);
when(genericParameterType.asErasure()).thenReturn(parameterType);
when(genericParameterType.asGenericType()).thenReturn(genericParameterType);
when(parameterType.asGenericType()).thenReturn(genericParameterType);
when(genericParameterType.asRawType()).thenReturn(genericParameterType);
when(genericParameterType.accept(any(TypeDescription.Generic.Visitor.class))).thenReturn(genericParameterType);
}
@Test
public void testPreservation() throws Exception {
MethodRebaseResolver.Resolution resolution = MethodRebaseResolver.Resolution.ForRebasedMethod.of(instrumentedType,
methodDescription,
methodNameTransformer);
assertThat(resolution.isRebased(), is(true));
assertThat(resolution.getResolvedMethod().getDeclaringType(), is(typeDescription));
assertThat(resolution.getResolvedMethod().getInternalName(), is(QUX));
assertThat(resolution.getResolvedMethod().getModifiers(), is(rebasedMethodModifiers));
assertThat(resolution.getResolvedMethod().getReturnType(), is(genericReturnType));
assertThat(resolution.getResolvedMethod().getParameters(), is((ParameterList<ParameterDescription.InDefinedShape>) new ParameterList.Explicit
.ForTypes(resolution.getResolvedMethod(), parameterType)));
StackManipulation.Size size = resolution.getAdditionalArguments().apply(methodVisitor, implementationContext);
assertThat(size.getSizeImpact(), is(0));
assertThat(size.getMaximalSize(), is(0));
verifyZeroInteractions(methodVisitor);
verifyZeroInteractions(implementationContext);
}
@Test
@SuppressWarnings("unchecked")
public void testObjectProperties() throws Exception {
ObjectPropertyAssertion.of(MethodRebaseResolver.Resolution.ForRebasedMethod.class).refine(new ObjectPropertyAssertion.Refinement<MethodDescription>() {
@Override
public void apply(MethodDescription mock) {
when(mock.getParameters()).thenReturn((ParameterList) new ParameterList.Empty<ParameterDescription>());
when(mock.getExceptionTypes()).thenReturn(new TypeList.Generic.Empty());
when(mock.getDeclaringType()).thenReturn(mock(TypeDescription.class));
TypeDescription.Generic returnType = mock(TypeDescription.Generic.class);
TypeDescription rawReturnType = mock(TypeDescription.class);
when(returnType.asErasure()).thenReturn(rawReturnType);
when(mock.getReturnType()).thenReturn(returnType);
}
}).refine(new ObjectPropertyAssertion.Refinement<MethodNameTransformer>() {
@Override
public void apply(MethodNameTransformer mock) {
when(mock.transform(any(MethodDescription.class))).thenReturn(FOO + System.identityHashCode(mock));
}
}).apply();
}
}