@Test(expected = IllegalStateException.class)
public void testTargetToSourceAssignable() throws Exception {
defineAssignability(false, true);
StackManipulation stackManipulation =
ReferenceTypeAwareAssigner.INSTANCE.assign(
sourceTypeDescription, targetTypeDescription, false);
assertThat(stackManipulation.isValid(), is(false));
stackManipulation.apply(methodVisitor, implementationContext);
}
@Test(expected = IllegalStateException.class)
public void testPrimitiveAssignabilityWhenNotEqual() throws Exception {
TypeDescription primitiveType =
new TypeDescription.ForLoadedType(int.class); // Note: cannot mock equals
TypeDescription otherPrimitiveType =
new TypeDescription.ForLoadedType(long.class); // Note: cannot mock equals
StackManipulation stackManipulation =
ReferenceTypeAwareAssigner.INSTANCE.assign(primitiveType, otherPrimitiveType, true);
assertThat(stackManipulation.isValid(), is(false));
stackManipulation.apply(methodVisitor, implementationContext);
}
@Test
public void testPrimitiveAssignabilityWhenEqual() throws Exception {
TypeDescription primitiveType =
new TypeDescription.ForLoadedType(int.class); // Note: cannot mock equals
StackManipulation stackManipulation =
ReferenceTypeAwareAssigner.INSTANCE.assign(primitiveType, primitiveType, true);
assertThat(stackManipulation.isValid(), is(true));
StackManipulation.Size size = stackManipulation.apply(methodVisitor, implementationContext);
assertThat(size.getSizeImpact(), is(0));
assertThat(size.getMaximalSize(), is(0));
verifyZeroInteractions(methodVisitor);
}
@Test
public void testSourceToTargetAssignable() throws Exception {
defineAssignability(true, false);
StackManipulation stackManipulation =
ReferenceTypeAwareAssigner.INSTANCE.assign(
sourceTypeDescription, targetTypeDescription, false);
assertThat(stackManipulation.isValid(), is(true));
StackManipulation.Size size = stackManipulation.apply(methodVisitor, implementationContext);
assertThat(size.getSizeImpact(), is(0));
assertThat(size.getMaximalSize(), is(0));
verifyZeroInteractions(methodVisitor);
}
@Test
public void testTargetToSourceAssignableRuntimeType() throws Exception {
defineAssignability(false, false);
when(targetTypeDescription.getInternalName()).thenReturn(FOO);
StackManipulation stackManipulation =
ReferenceTypeAwareAssigner.INSTANCE.assign(
sourceTypeDescription, targetTypeDescription, true);
assertThat(stackManipulation.isValid(), is(true));
StackManipulation.Size size = stackManipulation.apply(methodVisitor, implementationContext);
assertThat(size.getSizeImpact(), is(0));
assertThat(size.getMaximalSize(), is(0));
verify(methodVisitor).visitTypeInsn(Opcodes.CHECKCAST, FOO);
verifyNoMoreInteractions(methodVisitor);
}
