blob: 112fc2391a2b72f74e8357ce4c7f504a6506cb80 [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";
check(args) {
var list = args[0];
var string = args[1];
var nullObject = args[2];
Expect.isTrue(list is Object);
Expect.isTrue(list is List);
Expect.isTrue(list is Iterable);
Expect.isFalse(list is Comparable);
Expect.isFalse(list is Pattern);
Expect.isFalse(list is String);
Expect.isFalse(list is! Object);
Expect.isFalse(list is! List);
Expect.isFalse(list is! Iterable);
Expect.isTrue(list is! Comparable);
Expect.isTrue(list is! Pattern);
Expect.isTrue(list is! String);
Expect.isTrue(string is Object);
Expect.isFalse(string is List);
Expect.isFalse(string is Iterable);
Expect.isTrue(string is Comparable);
Expect.isTrue(string is Pattern);
Expect.isTrue(string is String);
Expect.isFalse(string is! Object);
Expect.isTrue(string is! List);
Expect.isTrue(string is! Iterable);
Expect.isFalse(string is! Comparable);
Expect.isFalse(string is! Pattern);
Expect.isFalse(string is! String);
Expect.isFalse(nullObject is Object);
Expect.isFalse(nullObject is List);
Expect.isFalse(nullObject is Iterable);
Expect.isFalse(nullObject is Comparable);
Expect.isFalse(nullObject is Pattern);
Expect.isFalse(nullObject is String);
Expect.isTrue(nullObject is! Object);
Expect.isTrue(nullObject is! List);
Expect.isTrue(nullObject is! Iterable);
Expect.isTrue(nullObject is! Comparable);
Expect.isTrue(nullObject is! Pattern);
Expect.isTrue(nullObject is! String);
main() {
// Try to make it hard for an optimizing compiler to inline the
// tests.
check([[], 'string', null]);
// Try to make it even harder.
var string = new String.fromCharCodes([new % 100 + 1]);
check([string.codeUnits, string, null]);