|  | // Copyright (c) 2011, 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. | 
|  | // Test number types. | 
|  |  | 
|  | library NumbersTest.dart; | 
|  |  | 
|  | import "package:expect/expect.dart"; | 
|  | import 'package:expect/variations.dart' as v; | 
|  |  | 
|  | class NumbersTest { | 
|  | static double testMain() { | 
|  | var one = 1; | 
|  | Expect.equals(true, one is Object); | 
|  | Expect.equals(true, one is num); | 
|  | Expect.equals(true, one is int); | 
|  | Expect.equals(v.jsNumbers, one is double); | 
|  |  | 
|  | var two = 2.0; | 
|  | Expect.equals(true, two is Object); | 
|  | Expect.equals(true, two is num); | 
|  | Expect.equals(v.jsNumbers, two is int); | 
|  | Expect.equals(true, two is double); | 
|  |  | 
|  | var result = one + two; | 
|  | Expect.equals(true, result is Object); | 
|  | Expect.equals(true, result is num); | 
|  | Expect.equals(v.jsNumbers, result is int); | 
|  | Expect.equals(true, result is double); | 
|  |  | 
|  | Expect.equals(3.0, result); | 
|  | return result; | 
|  | } | 
|  | } | 
|  |  | 
|  | main() { | 
|  | NumbersTest.testMain(); | 
|  | } |