@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 getBasicTypeMirror() {
assertThat(TypeName.get(getMirror(Object.class))).isEqualTo(ClassName.get(Object.class));
assertThat(TypeName.get(getMirror(Charset.class))).isEqualTo(ClassName.get(Charset.class));
assertThat(TypeName.get(getMirror(AbstractTypesTest.class)))
.isEqualTo(ClassName.get(AbstractTypesTest.class));
}
@Test
public void getParameterizedTypeMirror() {
DeclaredType setType =
getTypes().getDeclaredType(getElement(Set.class), getMirror(Object.class));
assertThat(TypeName.get(setType))
.isEqualTo(ParameterizedTypeName.get(ClassName.get(Set.class), ClassName.OBJECT));
}
@Test
public void box() throws Exception {
assertThat(TypeName.INT.box()).isEqualTo(ClassName.get(Integer.class));
assertThat(TypeName.VOID.box()).isEqualTo(ClassName.get(Void.class));
assertThat(ClassName.get(Integer.class).box()).isEqualTo(ClassName.get(Integer.class));
assertThat(ClassName.get(Void.class).box()).isEqualTo(ClassName.get(Void.class));
assertThat(TypeName.OBJECT.box()).isEqualTo(TypeName.OBJECT);
assertThat(ClassName.get(String.class).box()).isEqualTo(ClassName.get(String.class));
}
@Test
public void unbox() throws Exception {
assertThat(TypeName.INT).isEqualTo(TypeName.INT.unbox());
assertThat(TypeName.VOID).isEqualTo(TypeName.VOID.unbox());
assertThat(ClassName.get(Integer.class).unbox()).isEqualTo(TypeName.INT.unbox());
assertThat(ClassName.get(Void.class).unbox()).isEqualTo(TypeName.VOID.unbox());
try {
TypeName.OBJECT.unbox();
fail();
} catch (UnsupportedOperationException expected) {
}
try {
ClassName.get(String.class).unbox();
fail();
} catch (UnsupportedOperationException expected) {
}
}
@Test
public void getErrorType() {
ErrorType errorType =
new DeclaredTypeAsErrorType(getTypes().getDeclaredType(getElement(Set.class)));
assertThat(TypeName.get(errorType)).isEqualTo(ClassName.get(Set.class));
}