@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.) }