package net.bytebuddy.implementation.bind.annotation;
import net.bytebuddy.description.annotation.AnnotationList;
import net.bytebuddy.description.field.FieldDescription;
import net.bytebuddy.description.field.FieldList;
import net.bytebuddy.description.method.ParameterDescription;
import net.bytebuddy.description.method.ParameterList;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.implementation.bind.MethodDelegationBinder;
import net.bytebuddy.implementation.bytecode.assign.Assigner;
import net.bytebuddy.test.utility.ObjectPropertyAssertion;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.mockito.Mockito.doReturn;
import static org.mockito.Mockito.when;
public class FieldValueBinderTest extends AbstractAnnotationBinderTest<FieldValue> {
private static final String FOO = "foo", BAR = "bar";
@Mock
private FieldDescription.InDefinedShape fieldDescription;
@Mock
private TypeDescription.Generic fieldType, targetType;
@Mock
private TypeDescription rawFieldType;
public FieldValueBinderTest() {
super(FieldValue.class);
}
@Override
@Before
public void setUp() throws Exception {
super.setUp();
when(fieldDescription.asDefined()).thenReturn(fieldDescription);
when(fieldDescription.getType()).thenReturn(fieldType);
when(target.getType()).thenReturn(targetType);
when(fieldType.asErasure()).thenReturn(rawFieldType);
}
@Override
protected TargetMethodAnnotationDrivenBinder.ParameterBinder<FieldValue> getSimpleBinder() {
return FieldValue.Binder.INSTANCE;
}
@Test(expected = IllegalStateException.class)
public void testFieldOfArrayThrowsException() throws Exception {
doReturn(Object[].class).when(annotation).declaringType();
FieldValue.Binder.INSTANCE.bind(annotationDescription, source, target, implementationTarget, assigner, Assigner.Typing.STATIC);
}
@Test(expected = IllegalStateException.class)
public void testFieldOfPrimitiveThrowsException() throws Exception {
doReturn(int.class).when(annotation).declaringType();
FieldValue.Binder.INSTANCE.bind(annotationDescription, source, target, implementationTarget, assigner, Assigner.Typing.STATIC);
}
@Test
public void testLegalAssignment() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(instrumentedType.getDeclaredFields()).thenReturn(new FieldList.Explicit<FieldDescription.InDefinedShape>(fieldDescription));
when(fieldDescription.getActualName()).thenReturn(FOO);
when(fieldDescription.isVisibleTo(instrumentedType)).thenReturn(true);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(true));
}
@Test
public void testIllegalAssignmentNonAssignable() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(instrumentedType.getDeclaredFields()).thenReturn(new FieldList.Explicit<FieldDescription.InDefinedShape>(fieldDescription));
when(fieldDescription.getActualName()).thenReturn(FOO);
when(fieldDescription.isVisibleTo(instrumentedType)).thenReturn(true);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(false);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(false));
}
@Test
public void testIllegalAssignmentStaticMethod() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(instrumentedType.getDeclaredFields()).thenReturn(new FieldList.Explicit<FieldDescription.InDefinedShape>(fieldDescription));
when(fieldDescription.getActualName()).thenReturn(FOO);
when(fieldDescription.isVisibleTo(instrumentedType)).thenReturn(true);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(source.isStatic()).thenReturn(true);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(false));
}
@Test
public void testLegalAssignmentStaticMethodStaticField() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(instrumentedType.getDeclaredFields()).thenReturn(new FieldList.Explicit<FieldDescription.InDefinedShape>(fieldDescription));
when(fieldDescription.getActualName()).thenReturn(FOO);
when(fieldDescription.isVisibleTo(instrumentedType)).thenReturn(true);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(source.isStatic()).thenReturn(true);
when(fieldDescription.isStatic()).thenReturn(true);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(true));
}
@Test
public void testIllegalAssignmentNoField() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(instrumentedType.getDeclaredFields()).thenReturn(new FieldList.Empty<FieldDescription.InDefinedShape>());
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(false));
}
@Test
@SuppressWarnings("unchecked")
public void testIllegalAssignmentNonVisible() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(instrumentedType.getDeclaredFields()).thenReturn((FieldList) new FieldList.Explicit<FieldDescription>(fieldDescription));
when(fieldDescription.getActualName()).thenReturn(FOO);
when(fieldDescription.isVisibleTo(instrumentedType)).thenReturn(false);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(false));
}
@Test
public void testLegalAssignmentExplicitType() throws Exception {
doReturn(Foo.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(instrumentedType.isAssignableTo(new TypeDescription.ForLoadedType(Foo.class))).thenReturn(true);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(true));
}
@Test
public void testIllegalAssignmentExplicitTypeNonAssignable() throws Exception {
doReturn(Foo.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(instrumentedType.isAssignableTo(new TypeDescription.ForLoadedType(Foo.class))).thenReturn(false);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(false));
}
@Test
public void testIllegalAssignmentExplicitTypeNonAssignableFieldType() throws Exception {
doReturn(Foo.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(instrumentedType.isAssignableTo(new TypeDescription.ForLoadedType(Foo.class))).thenReturn(false);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(false));
}
@Test
public void testIllegalAssignmentExplicitTypeStaticMethod() throws Exception {
doReturn(Foo.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(source.isStatic()).thenReturn(true);
when(stackManipulation.isValid()).thenReturn(true);
when(instrumentedType.isAssignableTo(new TypeDescription.ForLoadedType(Foo.class))).thenReturn(true);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(false));
}
@Test
public void testLegalAssignmentExplicitTypeStaticMethodStaticField() throws Exception {
doReturn(FooStatic.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FOO);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(source.isStatic()).thenReturn(true);
when(stackManipulation.isValid()).thenReturn(true);
when(instrumentedType.isAssignableTo(new TypeDescription.ForLoadedType(FooStatic.class))).thenReturn(true);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(true));
}
@Test
public void testIllegalAssignmentExplicitTypeNoField() throws Exception {
doReturn(Foo.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(BAR);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(instrumentedType.isAssignableTo(new TypeDescription.ForLoadedType(Foo.class))).thenReturn(true);
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(false));
}
@Test
public void testGetterNameDiscovery() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FieldValue.Binder.Delegate.BEAN_PROPERTY);
when(instrumentedType.getDeclaredFields()).thenReturn(new FieldList.Explicit<FieldDescription.InDefinedShape>(fieldDescription));
when(fieldDescription.getActualName()).thenReturn(FOO);
when(fieldDescription.isVisibleTo(instrumentedType)).thenReturn(true);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(source.getInternalName()).thenReturn("getFoo");
when(source.getActualName()).thenReturn("getFoo");
when(source.getReturnType()).thenReturn(TypeDescription.Generic.OBJECT);
when(source.getParameters()).thenReturn(new ParameterList.Empty<ParameterDescription.InDefinedShape>());
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(true));
}
@Test
public void testGetterNameDiscoveryBoolean() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FieldValue.Binder.Delegate.BEAN_PROPERTY);
when(instrumentedType.getDeclaredFields()).thenReturn(new FieldList.Explicit<FieldDescription.InDefinedShape>(fieldDescription));
when(fieldDescription.getActualName()).thenReturn(FOO);
when(fieldDescription.isVisibleTo(instrumentedType)).thenReturn(true);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(source.getInternalName()).thenReturn("isFoo");
when(source.getActualName()).thenReturn("isFoo");
when(source.getReturnType()).thenReturn(new TypeDescription.Generic.OfNonGenericType.ForLoadedType(boolean.class));
when(source.getParameters()).thenReturn(new ParameterList.Empty<ParameterDescription.InDefinedShape>());
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(true));
}
@Test
public void testSetterNameDiscovery() throws Exception {
doReturn(void.class).when(annotation).declaringType();
when(annotation.value()).thenReturn(FieldValue.Binder.Delegate.BEAN_PROPERTY);
when(instrumentedType.getDeclaredFields()).thenReturn(new FieldList.Explicit<FieldDescription.InDefinedShape>(fieldDescription));
when(fieldDescription.getActualName()).thenReturn(FOO);
when(fieldDescription.isVisibleTo(instrumentedType)).thenReturn(true);
when(target.getDeclaredAnnotations()).thenReturn(new AnnotationList.Empty());
when(stackManipulation.isValid()).thenReturn(true);
when(source.getInternalName()).thenReturn("setFoo");
when(source.getActualName()).thenReturn("setFoo");
when(source.getReturnType()).thenReturn(TypeDescription.Generic.VOID);
when(source.getParameters()).thenReturn(new ParameterList.Explicit.ForTypes(source, TypeDescription.Generic.OBJECT));
MethodDelegationBinder.ParameterBinding<?> binding = FieldValue.Binder.INSTANCE.bind(annotationDescription,
source,
target,
implementationTarget,
assigner,
Assigner.Typing.STATIC);
assertThat(binding.isValid(), is(true));
}
@Test
public void testObjectProperties() throws Exception {
ObjectPropertyAssertion.of(FieldValue.Binder.class).apply();
}
public static class Foo {
public String foo;
}
public static class FooStatic {
public static String foo;
}
}