diff options
Diffstat (limited to 'js/src/jit-test/tests/warp/string-tolowercase-latin1.js')
-rw-r--r-- | js/src/jit-test/tests/warp/string-tolowercase-latin1.js | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/warp/string-tolowercase-latin1.js b/js/src/jit-test/tests/warp/string-tolowercase-latin1.js new file mode 100644 index 0000000000..2d94850445 --- /dev/null +++ b/js/src/jit-test/tests/warp/string-tolowercase-latin1.js @@ -0,0 +1,85 @@ +// Test inline lower case conversion of ASCII / Latin-1 strings. + +function* characters(...ranges) { + for (let [start, end] of ranges) { + for (let i = start; i <= end; ++i) { + yield i; + } + } +} + +const ascii_upper = [...characters( + [0x41, 0x5A], // A..Z + [0x30, 0x39], // 0..9 +)]; + +const ascii_lower = [...characters( + [0x61, 0x7A], // a..z + [0x30, 0x39], // 0..9 +)]; + +const latin1_upper = [...characters( + [0xC0, 0xDE], // À..Þ + [0x30, 0x39], // 0..9 +)]; + +const latin1_lower = [...characters( + [0xDF, 0xFF], // ß..ÿ +)]; + +for (let upper of [ascii_upper, latin1_upper]) { + let s = String.fromCodePoint(...upper); + assertEq(isLatin1(s), true); + assertEq(s, s.toUpperCase()); +} + +for (let lower of [ascii_lower, latin1_lower]) { + let s = String.fromCodePoint(...lower); + assertEq(isLatin1(s), true); + assertEq(s, s.toLowerCase()); +} + +function toRope(s) { + try { + return newRope(s[0], s.substring(1)); + } catch {} + // newRope can fail when |s| fits into an inline string. In that case simply + // return the input. + return s; +} + +for (let i = 0; i <= 32; ++i) { + let strings = [ascii_upper, ascii_lower, latin1_upper, latin1_lower].flatMap(codePoints => [ + String.fromCodePoint(...codePoints.slice(0, i)), + + // Trailing ASCII upper case character. + String.fromCodePoint(...codePoints.slice(0, i)) + "A", + + // Trailing ASCII lower case character. + String.fromCodePoint(...codePoints.slice(0, i)) + "a", + + // Trailing Latin-1 upper case character. + String.fromCodePoint(...codePoints.slice(0, i)) + "À", + + // Trailing Latin-1 lower case character. + String.fromCodePoint(...codePoints.slice(0, i)) + "ß", + ]).flatMap(x => [ + x, + toRope(x), + newString(x, {twoByte: true}), + ]); + + const expected = strings.map(x => { + // Prevent Warp compilation when computing the expected results. + with ({}) ; + return x.toLowerCase(); + }); + + for (let i = 0; i < 1000; ++i) { + let idx = i % strings.length; + let str = strings[idx]; + + let actual = str.toLowerCase(); + if (actual !== expected[idx]) throw new Error(); + } +} |