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| 1 // Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file |
| 2 // for details. All rights reserved. Use of this source code is governed by a |
| 3 // BSD-style license that can be found in the LICENSE file. |
| 4 |
| 5 import "package:expect/expect.dart"; |
| 6 |
| 7 // Dart test program for testing 'compare' on doubles. |
| 8 |
| 9 void main() { |
| 10 Expect.equals(0, (0.0).compareTo(0.0)); |
| 11 Expect.equals(0, (1.0).compareTo(1.0)); |
| 12 Expect.equals(0, (-2.0).compareTo(-2.0)); |
| 13 Expect.equals(0, (1e-50).compareTo(1e-50)); |
| 14 Expect.equals(0, (-2e50).compareTo(-2e50)); |
| 15 Expect.equals(0, double.NAN.compareTo(double.NAN)); |
| 16 Expect.equals(0, double.INFINITY.compareTo(double.INFINITY)); |
| 17 Expect.equals(0, |
| 18 double.NEGATIVE_INFINITY.compareTo(double.NEGATIVE_INFINITY)); |
| 19 Expect.equals(0, (-0.0).compareTo(-0.0)); |
| 20 Expect.isTrue((0.0).compareTo(1.0) < 0); |
| 21 Expect.isTrue((1.0).compareTo(0.0) > 0); |
| 22 Expect.isTrue((0.0).compareTo(-1.0) > 0); |
| 23 Expect.isTrue((-1.0).compareTo(0.0) < 0); |
| 24 Expect.isTrue((0.0).compareTo(1234e11) < 0); |
| 25 Expect.isTrue((123e-112).compareTo(0.0) > 0); |
| 26 Expect.isTrue((0.0).compareTo(-123.0e12) > 0); |
| 27 Expect.isTrue((-1.0e8).compareTo(0.0) < 0); |
| 28 |
| 29 double maxDouble = 1.7976931348623157e308; |
| 30 Expect.equals(0, maxDouble.compareTo(maxDouble)); |
| 31 Expect.isTrue(maxDouble.compareTo(double.INFINITY) < 0); |
| 32 Expect.isTrue(double.INFINITY.compareTo(maxDouble) > 0); |
| 33 |
| 34 double negMaxDouble = -maxDouble; |
| 35 Expect.equals(0, negMaxDouble.compareTo(negMaxDouble)); |
| 36 Expect.isTrue(double.NEGATIVE_INFINITY.compareTo(negMaxDouble) < 0); |
| 37 Expect.isTrue(negMaxDouble.compareTo(double.NEGATIVE_INFINITY) > 0); |
| 38 |
| 39 Expect.isTrue((-0.0).compareTo(0.0) < 0); |
| 40 Expect.isTrue((0.0).compareTo(-0.0) > 0); |
| 41 Expect.isTrue(double.NAN.compareTo(double.INFINITY) > 0); |
| 42 Expect.isTrue(double.NAN.compareTo(double.NEGATIVE_INFINITY) > 0); |
| 43 Expect.isTrue(double.INFINITY.compareTo(double.NAN) < 0); |
| 44 Expect.isTrue(double.NEGATIVE_INFINITY.compareTo(double.NAN) < 0); |
| 45 Expect.isTrue(maxDouble.compareTo(double.NAN) < 0); |
| 46 Expect.isTrue(negMaxDouble.compareTo(double.NAN) < 0); |
| 47 Expect.isTrue(double.NAN.compareTo(maxDouble) > 0); |
| 48 Expect.isTrue(double.NAN.compareTo(negMaxDouble) > 0); |
| 49 } |
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