tests/language/double_to_string_as_precision_test.dart - Issue 12743005: Revert "Remove Expect from core library."

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Issue 12743005: Revert "Remove Expect from core library." (Closed) Base URL: https://dart.googlecode.com/svn/branches/bleeding_edge/dart

Patch Set: Reupload (first upload failed). Created 7 years, 9 months ago

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1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file	1 // Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file

2 // for details. All rights reserved. Use of this source code is governed by a	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.	3 // BSD-style license that can be found in the LICENSE file.

4 // Test basic integer operations.	4 // Test basic integer operations.

5	5

6 import "package:expect/expect.dart";

7

8 main() {	6 main() {

9 Expect.equals("NaN", (double.NAN).toStringAsPrecision(1));	7 Expect.equals("NaN", (double.NAN).toStringAsPrecision(1));

10 Expect.equals("Infinity", (double.INFINITY).toStringAsPrecision(2));	8 Expect.equals("Infinity", (double.INFINITY).toStringAsPrecision(2));

11 Expect.equals("-Infinity", (-double.INFINITY).toStringAsPrecision(2));	9 Expect.equals("-Infinity", (-double.INFINITY).toStringAsPrecision(2));

12 Expect.equals("0.000555000000000000", (0.000555).toStringAsPrecision(15));	10 Expect.equals("0.000555000000000000", (0.000555).toStringAsPrecision(15));

13 Expect.equals("5.55000000000000e-7", (0.000000555).toStringAsPrecision(15));	11 Expect.equals("5.55000000000000e-7", (0.000000555).toStringAsPrecision(15));

14 Expect.equals("-5.55000000000000e-7", (-0.000000555).toStringAsPrecision(15));	12 Expect.equals("-5.55000000000000e-7", (-0.000000555).toStringAsPrecision(15));

15 Expect.equals("1e+8", (123456789.0).toStringAsPrecision(1));	13 Expect.equals("1e+8", (123456789.0).toStringAsPrecision(1));

16 Expect.equals("123456789", (123456789.0).toStringAsPrecision(9));	14 Expect.equals("123456789", (123456789.0).toStringAsPrecision(9));

17 Expect.equals("1.2345679e+8", (123456789.0).toStringAsPrecision(8));	15 Expect.equals("1.2345679e+8", (123456789.0).toStringAsPrecision(8));

(...skipping 15 matching lines...) Expand all Loading...
33 Expect.equals("-1.2e+4", (-12345.0).toStringAsPrecision(2));	31 Expect.equals("-1.2e+4", (-12345.0).toStringAsPrecision(2));

34 Expect.equals("-1.235e+4", (-12345.67).toStringAsPrecision(4));	32 Expect.equals("-1.235e+4", (-12345.67).toStringAsPrecision(4));

35 Expect.equals("-1.234e+4", (-12344.67).toStringAsPrecision(4));	33 Expect.equals("-1.234e+4", (-12344.67).toStringAsPrecision(4));

36 Expect.equals("-0.0", (-0.0).toStringAsPrecision(2));	34 Expect.equals("-0.0", (-0.0).toStringAsPrecision(2));

37 Expect.equals("-0", (-0.0).toStringAsPrecision(1));	35 Expect.equals("-0", (-0.0).toStringAsPrecision(1));

38 // Test that we round up even when the last digit generated is even.	36 // Test that we round up even when the last digit generated is even.

39 // dtoa does not do this in its original form.	37 // dtoa does not do this in its original form.

40 Expect.equals("1.3", 1.25.toStringAsPrecision(2));	38 Expect.equals("1.3", 1.25.toStringAsPrecision(2));

41 Expect.equals("1.4", 1.35.toStringAsPrecision(2));	39 Expect.equals("1.4", 1.35.toStringAsPrecision(2));

42 }	40 }

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