| /* |
| * 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. |
| */ |
| /** |
| * @assertion static void approxEquals(num expected, num actual, [num tolerance = null, String reason = null]) |
| * Failure if the difference between expected and actual is greater than the |
| * given tolerance. |
| * @description Checks that no exception is thrown when the difference between |
| * arguments is equal to specified non-negative, non-NAN tolerance, regardless |
| * of reason (the last argument). Also checks the case when the specified |
| * tolerance is negative zero (0.0 == -0.0). |
| * @author rodionov |
| */ |
| import "../../../Utils/expect.dart"; |
| import "dart:math" as Math; |
| |
| main() { |
| final double MIN_DOUBLE = Math.pow(2.0, -1074) as double; |
| final double NEG_MIN_DOUBLE = -1 * MIN_DOUBLE; |
| final double MAX_DOUBLE = (2 - Math.pow(2.0, -52)) * Math.pow(2.0, 1023) as double; |
| final double NEG_MAX_DOUBLE = -1 * MAX_DOUBLE; |
| |
| Expect.approxEquals(100.0, 101, 1); |
| Expect.approxEquals(100.0, 101, 1, ""); |
| Expect.approxEquals(100.0, 101, 1, "not empty"); |
| |
| Expect.approxEquals(101, 100.0, 1); |
| Expect.approxEquals(101, 100.0, 1, ""); |
| Expect.approxEquals(101, 100.0, 1, "not empty"); |
| |
| Expect.approxEquals(100, 100.0, 0); |
| Expect.approxEquals(100, 100.0, 0, ""); |
| Expect.approxEquals(100, 100.0, 0, "not empty"); |
| |
| Expect.approxEquals(100, -100.0, 200); |
| Expect.approxEquals(100, -100.0, 200, ""); |
| Expect.approxEquals(100, -100.0, 200, "not empty"); |
| |
| Expect.approxEquals(-100, 100.0, 200); |
| Expect.approxEquals(-100, 100.0, 200, ""); |
| Expect.approxEquals(-100, 100.0, 200, "not empty"); |
| |
| Expect.approxEquals(100, 100, -0.0); |
| Expect.approxEquals(100, 100, -0.0, ""); |
| Expect.approxEquals(100, 100, -0.0, "not empty"); |
| |
| Expect.approxEquals(double.infinity, 0, double.infinity); |
| Expect.approxEquals(double.infinity, 0, double.infinity, ""); |
| Expect.approxEquals(double.infinity, 0, double.infinity, "not empty"); |
| |
| Expect.approxEquals(double.negativeInfinity, 0, double.infinity); |
| Expect.approxEquals(double.negativeInfinity, 0, double.infinity, ""); |
| Expect.approxEquals(double.negativeInfinity, 0, double.infinity, "not empty"); |
| |
| Expect.approxEquals(double.infinity, MAX_DOUBLE, double.infinity); |
| Expect.approxEquals(double.infinity, MAX_DOUBLE, double.infinity, ""); |
| Expect.approxEquals(double.infinity, MAX_DOUBLE, double.infinity, "not empty"); |
| |
| Expect.approxEquals(double.negativeInfinity, MAX_DOUBLE, double.infinity); |
| Expect.approxEquals(double.negativeInfinity, MAX_DOUBLE, double.infinity, ""); |
| Expect.approxEquals(double.negativeInfinity, MAX_DOUBLE, double.infinity, "not empty"); |
| |
| Expect.approxEquals(double.infinity, NEG_MAX_DOUBLE, double.infinity); |
| Expect.approxEquals(double.infinity, NEG_MAX_DOUBLE, double.infinity, ""); |
| Expect.approxEquals(double.infinity, NEG_MAX_DOUBLE, double.infinity, "not empty"); |
| |
| Expect.approxEquals(double.negativeInfinity, NEG_MAX_DOUBLE, double.infinity); |
| Expect.approxEquals(double.negativeInfinity, NEG_MAX_DOUBLE, double.infinity, ""); |
| Expect.approxEquals(double.negativeInfinity, NEG_MAX_DOUBLE, double.infinity, "not empty"); |
| } |