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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 main() { |
| 8 testLowerUpper(); |
| 9 testSpecialCases(); |
| 10 } |
| 11 |
| 12 void testLowerUpper() { |
| 13 var a = "Stop! Smell the Roses."; |
| 14 var allLower = "stop! smell the roses."; |
| 15 var allUpper = "STOP! SMELL THE ROSES."; |
| 16 Expect.equals(allUpper, a.toUpperCase()); |
| 17 Expect.equals(allLower, a.toLowerCase()); |
| 18 } |
| 19 |
| 20 void testSpecialCases() { |
| 21 // Letters in Latin-1 where the upper case is not in Latin-1. |
| 22 |
| 23 // German sharp s. Upper case variant is "SS". |
| 24 Expect.equals("SS", "\xdf".toUpperCase()); /// 01: ok |
| 25 Expect.equals("\xdf", "\xdf".toLowerCase()); |
| 26 Expect.equals("ss", "\xdf".toUpperCase().toLowerCase()); /// 01: continued |
| 27 // Micro sign (not same as lower-case Greek letter mu, U+03BC). |
| 28 Expect.equals("\u039c", "\xb5".toUpperCase()); /// 02: ok |
| 29 Expect.equals("\xb5", "\xb5".toLowerCase()); |
| 30 Expect.equals("\u03Bc", /// 02: continued |
| 31 "\xb5".toUpperCase().toLowerCase()); /// 02: continued |
| 32 // Small letter y diaresis. |
| 33 Expect.equals("\u0178", "\xff".toUpperCase()); /// 03: ok |
| 34 Expect.equals("\xff", "\xff".toLowerCase()); |
| 35 Expect.equals("\xff", "\xff".toUpperCase().toLowerCase()); /// 03: continued |
| 36 // Zero. |
| 37 Expect.equals("\x00", "\x00".toLowerCase()); |
| 38 Expect.equals("\x00", "\x00".toUpperCase()); |
| 39 |
| 40 // Test all combinations of ordering of lower-case, upper-case and |
| 41 // special-when-upper-cased characters. |
| 42 Expect.equals("AA\u0178", "Aa\xff".toUpperCase()); /// 03: continued |
| 43 Expect.equals("AA\u0178", "aA\xff".toUpperCase()); /// 03: continued |
| 44 Expect.equals("A\u0178A", "A\xffa".toUpperCase()); /// 03: continued |
| 45 Expect.equals("A\u0178A", "a\xffA".toUpperCase()); /// 03: continued |
| 46 Expect.equals("\u0178AA", "\xffAa".toUpperCase()); /// 03: continued |
| 47 Expect.equals("\u0178AA", "\xffaA".toUpperCase()); /// 03: continued |
| 48 |
| 49 Expect.equals("aa\xff", "Aa\xff".toLowerCase()); |
| 50 Expect.equals("aa\xff", "aA\xff".toLowerCase()); |
| 51 Expect.equals("a\xffa", "A\xffa".toLowerCase()); |
| 52 Expect.equals("a\xffa", "a\xffA".toLowerCase()); |
| 53 Expect.equals("\xffaa", "\xffAa".toLowerCase()); |
| 54 Expect.equals("\xffaa", "\xffaA".toLowerCase()); |
| 55 } |
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