blob: a934dc1e97fa2a693b7e8238b53d71c8ed5dfe24 [file] [log] [blame]
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
// Dart test program for the "is" type test operator.
import "package:expect/expect.dart";
abstract class I {}
abstract class AI implements I {}
class A implements AI {
const A();
class B implements I {
const B();
class C extends A {
const C() : super();
class IsOperatorTest {
static testMain() {
var a = new A();
var b = new B();
var c = new C();
var n = null;
Expect.equals(true, a is A);
Expect.equals(false, a is! A);
Expect.equals(true, b is B);
Expect.equals(false, b is! B);
Expect.equals(true, c is C);
Expect.equals(false, c is! C);
Expect.equals(true, c is A);
Expect.equals(false, c is! A);
Expect.equals(true, a is AI);
Expect.equals(false, a is! AI);
Expect.equals(true, a is I);
Expect.equals(false, a is! I);
Expect.equals(false, b is AI);
Expect.equals(true, b is! AI);
Expect.equals(true, b is I);
Expect.equals(false, b is! I);
Expect.equals(true, c is AI);
Expect.equals(false, c is! AI);
Expect.equals(true, c is I);
Expect.equals(false, c is! I);
Expect.equals(false, n is AI);
Expect.equals(true, n is! AI);
Expect.equals(false, n is I);
Expect.equals(true, n is! I);
Expect.equals(false, a is B);
Expect.equals(true, a is! B);
Expect.equals(false, a is C);
Expect.equals(true, a is! C);
Expect.equals(false, b is A);
Expect.equals(true, b is! A);
Expect.equals(false, b is C);
Expect.equals(true, b is! C);
Expect.equals(false, c is B);
Expect.equals(true, c is! B);
Expect.equals(false, n is A);
Expect.equals(true, n is! A);
Expect.equals(false, null is A);
Expect.equals(false, null is B);
Expect.equals(false, null is C);
Expect.equals(false, null is AI);
Expect.equals(false, null is I);
Expect.equals(true, null is! A);
Expect.equals(true, null is! B);
Expect.equals(true, null is! C);
Expect.equals(true, null is! AI);
Expect.equals(true, null is! I);
main() {