public void test_isMoreSpecificThan_typeArguments_self() {
TypeParameterElementImpl element = new TypeParameterElementImpl(identifier("E"));
TypeParameterTypeImpl type = new TypeParameterTypeImpl(element);
// E << E
assertTrue(type.isMoreSpecificThan(type));
}
public void test_isMoreSpecificThan_typeArguments_object() {
TypeParameterElementImpl element = new TypeParameterElementImpl(identifier("E"));
TypeParameterTypeImpl type = new TypeParameterTypeImpl(element);
// E << Object
assertTrue(type.isMoreSpecificThan(getObject().getType()));
}
public void test_isMoreSpecificThan_typeArguments_dynamic() {
TypeParameterElementImpl element = new TypeParameterElementImpl(identifier("E"));
TypeParameterTypeImpl type = new TypeParameterTypeImpl(element);
// E << dynamic
assertTrue(type.isMoreSpecificThan(DynamicTypeImpl.getInstance()));
}
public void test_isMoreSpecificThan_typeArguments_upperBound() {
ClassElementImpl classS = classElement("A");
TypeParameterElementImpl typeParameterT = new TypeParameterElementImpl(identifier("T"));
typeParameterT.setBound(classS.getType());
TypeParameterTypeImpl typeParameterTypeT = new TypeParameterTypeImpl(typeParameterT);
// <T extends S>
// T << S
assertTrue(typeParameterTypeT.isMoreSpecificThan(classS.getType()));
}
public void test_isMoreSpecificThan_typeArguments_transitivity_typeParameters() {
ClassElementImpl classS = classElement("A");
TypeParameterElementImpl typeParameterU = new TypeParameterElementImpl(identifier("U"));
typeParameterU.setBound(classS.getType());
TypeParameterTypeImpl typeParameterTypeU = new TypeParameterTypeImpl(typeParameterU);
TypeParameterElementImpl typeParameterT = new TypeParameterElementImpl(identifier("T"));
typeParameterT.setBound(typeParameterTypeU);
TypeParameterTypeImpl typeParameterTypeT = new TypeParameterTypeImpl(typeParameterT);
// <T extends U> and <U extends S>
// T << S
assertTrue(typeParameterTypeT.isMoreSpecificThan(classS.getType()));
}
public void test_isMoreSpecificThan_typeArguments_transitivity_interfaceTypes() {
// class A {}
// class B extends A {}
//
ClassElement classA = classElement("A");
ClassElement classB = classElement("B", classA.getType());
InterfaceType typeA = classA.getType();
InterfaceType typeB = classB.getType();
TypeParameterElementImpl typeParameterT = new TypeParameterElementImpl(identifier("T"));
typeParameterT.setBound(typeB);
TypeParameterTypeImpl typeParameterTypeT = new TypeParameterTypeImpl(typeParameterT);
// <T extends B>
// T << A
assertTrue(typeParameterTypeT.isMoreSpecificThan(typeA));
}