| // 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. |
| // Test num.clamp. |
| |
| // @dart = 2.9 |
| |
| import "package:expect/expect.dart"; |
| |
| testIntClamp() { |
| Expect.equals(2, 2.clamp(1, 3)); |
| Expect.equals(1, 0.clamp(1, 3)); |
| Expect.equals(3, 4.clamp(1, 3)); |
| Expect.equals(-2, (-2).clamp(-3, -1)); |
| Expect.equals(-1, 0.clamp(-3, -1)); |
| Expect.equals(-3, (-4).clamp(-3, -1)); |
| Expect.equals(0, 1.clamp(0, 0)); |
| Expect.equals(0, (-1).clamp(0, 0)); |
| Expect.equals(0, 0.clamp(0, 0)); |
| Expect.throwsArgumentError(() => 0.clamp(0, -1)); |
| } |
| |
| testDoubleClamp() { |
| Expect.equals(2.0, 2.clamp(1.0, 3.0)); |
| Expect.equals(1.0, 0.clamp(1.0, 3.0)); |
| Expect.equals(3.0, 4.clamp(1.0, 3.0)); |
| Expect.equals(-2.0, (-2.0).clamp(-3.0, -1.0)); |
| Expect.equals(-1.0, 0.0.clamp(-3.0, -1.0)); |
| Expect.equals(-3.0, (-4.0).clamp(-3.0, -1.0)); |
| Expect.equals(0.0, 1.0.clamp(0.0, 0.0)); |
| Expect.equals(0.0, (-1.0).clamp(0.0, 0.0)); |
| Expect.equals(0.0, 0.0.clamp(0.0, 0.0)); |
| Expect.throwsArgumentError(() => 0.0.clamp(0.0, -1.0)); |
| } |
| |
| testDoubleClampInt() { |
| Expect.equals(2.0, 2.0.clamp(1, 3)); |
| Expect.equals(1, 0.0.clamp(1, 3)); |
| Expect.isTrue(0.0.clamp(1, 3) is int); |
| Expect.equals(3, 4.0.clamp(1, 3)); |
| Expect.isTrue(4.0.clamp(1, 3) is int); |
| Expect.equals(-2.0, (-2.0).clamp(-3, -1)); |
| Expect.equals(-1, 0.0.clamp(-3, -1)); |
| Expect.isTrue(0.0.clamp(-3, -1) is int); |
| Expect.equals(-3, (-4.0).clamp(-3, -1)); |
| Expect.isTrue((-4.0).clamp(-3, -1) is int); |
| Expect.equals(0, 1.0.clamp(0, 0)); |
| Expect.isTrue(1.0.clamp(0, 0) is int); |
| Expect.equals(0, (-1.0).clamp(0, 0)); |
| Expect.isTrue((-1.0).clamp(0, 0) is int); |
| Expect.equals(0.0, 0.0.clamp(0, 0)); |
| Expect.isTrue(0.0.clamp(0, 0) is double); |
| Expect.throwsArgumentError(() => 0.0.clamp(0, -1)); |
| } |
| |
| testDoubleClampExtremes() { |
| Expect.equals(2.0, 2.0.clamp(-double.infinity, double.infinity)); |
| Expect.equals(2.0, 2.0.clamp(-double.infinity, double.nan)); |
| Expect.equals(double.infinity, 2.0.clamp(double.infinity, double.nan)); |
| Expect.isTrue(2.0.clamp(double.nan, double.nan).isNaN); |
| Expect.throwsArgumentError(() => 0.0.clamp(double.nan, double.infinity)); |
| } |
| |
| main() { |
| testIntClamp(); |
| testDoubleClamp(); |
| testDoubleClampInt(); |
| testDoubleClampExtremes(); |
| } |