@Test
public void getTypeVariableTypeMirror() {
List<? extends TypeParameterElement> typeVariables =
getElement(Parameterized.class).getTypeParameters();
// Members of converted types use ClassName and not Class<?>.
ClassName number = ClassName.get(Number.class);
ClassName runnable = ClassName.get(Runnable.class);
ClassName serializable = ClassName.get(Serializable.class);
assertThat(TypeName.get(typeVariables.get(0).asType()))
.isEqualTo(TypeVariableName.get("Simple"));
assertThat(TypeName.get(typeVariables.get(1).asType()))
.isEqualTo(TypeVariableName.get("ExtendsClass", number));
assertThat(TypeName.get(typeVariables.get(2).asType()))
.isEqualTo(TypeVariableName.get("ExtendsInterface", runnable));
assertThat(TypeName.get(typeVariables.get(3).asType()))
.isEqualTo(TypeVariableName.get("ExtendsTypeVariable", TypeVariableName.get("Simple")));
assertThat(TypeName.get(typeVariables.get(4).asType()))
.isEqualTo(TypeVariableName.get("Intersection", number, runnable));
assertThat(TypeName.get(typeVariables.get(5).asType()))
.isEqualTo(TypeVariableName.get("IntersectionOfInterfaces", runnable, serializable));
assertThat(((TypeVariableName) TypeName.get(typeVariables.get(4).asType())).bounds)
.containsExactly(number, runnable);
}
@Test
public void getTypeVariableTypeMirrorRecursive() {
TypeMirror typeMirror = getElement(Recursive.class).asType();
ParameterizedTypeName typeName = (ParameterizedTypeName) TypeName.get(typeMirror);
String className = Recursive.class.getCanonicalName();
assertThat(typeName.toString()).isEqualTo(className + "<T>");
TypeVariableName typeVariableName = (TypeVariableName) typeName.typeArguments.get(0);
try {
typeVariableName.bounds.set(0, null);
fail("Expected UnsupportedOperationException");
} catch (UnsupportedOperationException expected) {
}
assertThat(typeVariableName.toString()).isEqualTo("T");
assertThat(typeVariableName.bounds.toString())
.isEqualTo("[java.util.Map<java.util.List<T>, java.util.Set<T[]>>]");
}
@Test
public void typeVariable() throws Exception {
TypeVariableName type = TypeVariableName.get("T", CharSequence.class);
assertThat(type.toString()).isEqualTo("T"); // (Bounds are only emitted in declaration.)
}
