tests/corelib/src/DoubleCompareTest.dart - Issue 10244009: test rename overhaul: step 7 - corelib tests

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Side by Side Diff: tests/corelib/src/DoubleCompareTest.dart

Issue 10244009: test rename overhaul: step 7 - corelib tests (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Created 8 years, 7 months ago

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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 // Dart test program for testing 'compare' on doubles.

6

7 void main() {

8 Expect.equals(0, (0.0).compareTo(0.0));

9 Expect.equals(0, (1.0).compareTo(1.0));

10 Expect.equals(0, (-2.0).compareTo(-2.0));

11 Expect.equals(0, (1e-50).compareTo(1e-50));

12 Expect.equals(0, (-2e50).compareTo(-2e50));

13 Expect.equals(0, double.NAN.compareTo(double.NAN));

14 Expect.equals(0, double.INFINITY.compareTo(double.INFINITY));

15 Expect.equals(0,

16 double.NEGATIVE_INFINITY.compareTo(double.NEGATIVE_INFINITY));

17 Expect.equals(0, (-0.0).compareTo(-0.0));

18 Expect.isTrue((0.0).compareTo(1.0) < 0);

19 Expect.isTrue((1.0).compareTo(0.0) > 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(1234e11) < 0);

23 Expect.isTrue((123e-112).compareTo(0.0) > 0);

24 Expect.isTrue((0.0).compareTo(-123.0e12) > 0);

25 Expect.isTrue((-1.0e8).compareTo(0.0) < 0);

26

27 double maxDouble = 1.7976931348623157e308;

28 Expect.equals(0, maxDouble.compareTo(maxDouble));

29 Expect.isTrue(maxDouble.compareTo(double.INFINITY) < 0);

30 Expect.isTrue(double.INFINITY.compareTo(maxDouble) > 0);

31

32 double negMaxDouble = -maxDouble;

33 Expect.equals(0, negMaxDouble.compareTo(negMaxDouble));

34 Expect.isTrue(double.NEGATIVE_INFINITY.compareTo(negMaxDouble) < 0);

35 Expect.isTrue(negMaxDouble.compareTo(double.NEGATIVE_INFINITY) > 0);

36

37 Expect.isTrue((-0.0).compareTo(0.0) < 0);

38 Expect.isTrue((0.0).compareTo(-0.0) > 0);

39 Expect.isTrue(double.NAN.compareTo(double.INFINITY) > 0);

40 Expect.isTrue(double.NAN.compareTo(double.NEGATIVE_INFINITY) > 0);

41 Expect.isTrue(double.INFINITY.compareTo(double.NAN) < 0);

42 Expect.isTrue(double.NEGATIVE_INFINITY.compareTo(double.NAN) < 0);

43 Expect.isTrue(maxDouble.compareTo(double.NAN) < 0);

44 Expect.isTrue(negMaxDouble.compareTo(double.NAN) < 0);

45 Expect.isTrue(double.NAN.compareTo(maxDouble) > 0);

46 Expect.isTrue(double.NAN.compareTo(negMaxDouble) > 0);

47 }

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