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// Copyright (c) 2011, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import "package:expect/expect.dart";
main() {
testLowerUpper();
testSpecialCases();
}
void testLowerUpper() {
var a = "Stop! Smell the Roses.";
var allLower = "stop! smell the roses.";
var allUpper = "STOP! SMELL THE ROSES.";
Expect.equals(allUpper, a.toUpperCase());
Expect.equals(allLower, a.toLowerCase());
}
void testSpecialCases() {
// Letters in Latin-1 where the upper case is not in Latin-1.
// German sharp s. Upper case variant is "SS".
Expect.equals("SS", "\xdf".toUpperCase()); /// 01: ok
Expect.equals("\xdf", "\xdf".toLowerCase());
Expect.equals("ss", "\xdf".toUpperCase().toLowerCase()); /// 01: continued
// Micro sign (not same as lower-case Greek letter mu, U+03BC).
Expect.equals("\u039c", "\xb5".toUpperCase()); /// 02: ok
Expect.equals("\xb5", "\xb5".toLowerCase());
Expect.equals("\u03Bc", /// 02: continued
"\xb5".toUpperCase().toLowerCase()); /// 02: continued
// Small letter y diaresis.
Expect.equals("\u0178", "\xff".toUpperCase()); /// 03: ok
Expect.equals("\xff", "\xff".toLowerCase());
Expect.equals("\xff", "\xff".toUpperCase().toLowerCase()); /// 03: continued
// Zero.
Expect.equals("\x00", "\x00".toLowerCase());
Expect.equals("\x00", "\x00".toUpperCase());
// Test all combinations of ordering of lower-case, upper-case and
// special-when-upper-cased characters.
Expect.equals("AA\u0178", "Aa\xff".toUpperCase()); /// 03: continued
Expect.equals("AA\u0178", "aA\xff".toUpperCase()); /// 03: continued
Expect.equals("A\u0178A", "A\xffa".toUpperCase()); /// 03: continued
Expect.equals("A\u0178A", "a\xffA".toUpperCase()); /// 03: continued
Expect.equals("\u0178AA", "\xffAa".toUpperCase()); /// 03: continued
Expect.equals("\u0178AA", "\xffaA".toUpperCase()); /// 03: continued
Expect.equals("aa\xff", "Aa\xff".toLowerCase());
Expect.equals("aa\xff", "aA\xff".toLowerCase());
Expect.equals("a\xffa", "A\xffa".toLowerCase());
Expect.equals("a\xffa", "a\xffA".toLowerCase());
Expect.equals("\xffaa", "\xffAa".toLowerCase());
Expect.equals("\xffaa", "\xffaA".toLowerCase());
}