| /* |
| * Copyright 2014 Google Inc. All rights reserved. |
| * |
| * Use of this source code is governed by a BSD-style |
| * license that can be found in the LICENSE file or at |
| * https://developers.google.com/open-source/licenses/bsd |
| */ |
| |
| part of charted.test.core; |
| |
| testMath() { |
| test('toRadius() correctly converts degrees to radians', () { |
| expect(toRadians(0), equals(0)); |
| expect(toRadians(180), equals(math.PI)); |
| expect(toRadians(360), equals(math.PI * 2)); |
| expect(toRadians(90), equals(math.PI / 2)); |
| expect(toRadians(30), equals(math.PI / 6)); |
| expect(toRadians(45), equals(math.PI / 4)); |
| }); |
| |
| test('toDegrees() correctly converts radians to degrees', () { |
| expect(toDegrees(0), closeTo(0, EPSILON)); |
| expect(toDegrees(math.PI), closeTo(180, EPSILON)); |
| expect(toDegrees(math.PI * 2), closeTo(360, EPSILON)); |
| expect(toDegrees(math.PI / 2), closeTo(90, EPSILON)); |
| expect(toDegrees(math.PI / 6), closeTo(30, EPSILON)); |
| expect(toDegrees(math.PI / 4), closeTo(45, EPSILON)); |
| }); |
| |
| test('sinh() correctly calculates sinh', () { |
| expect(sinh(0), equals(0)); |
| expect(sinh(0.5), closeTo(0.5210953054937474, EPSILON)); |
| expect(sinh(1), closeTo(1.1752011936438014, EPSILON)); |
| expect(sinh(-0.5), closeTo(-0.5210953054937474, EPSILON)); |
| expect(sinh(-1), closeTo(-1.1752011936438014, EPSILON)); |
| }); |
| |
| test('cosh() correctly calculates cosh', () { |
| expect(cosh(0), equals(1)); |
| expect(cosh(0.5), closeTo(1.1276259652063807, EPSILON)); |
| expect(cosh(1), closeTo(1.5430806348152437, EPSILON)); |
| expect(cosh(-0.5), closeTo(1.1276259652063807, EPSILON)); |
| expect(cosh(-1), closeTo(1.5430806348152437, EPSILON)); |
| }); |
| |
| test('tanh() correctly calculates cosh', () { |
| expect(tanh(0), equals(0)); |
| expect(tanh(0.5), closeTo(0.46211715726000974, EPSILON)); |
| expect(tanh(1), closeTo(0.7615941559557649, EPSILON)); |
| expect(tanh(-0.5), closeTo(-0.46211715726000974, EPSILON)); |
| expect(tanh(-1), closeTo(-0.7615941559557649, EPSILON)); |
| }); |
| } |