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Diffstat (limited to 'deps/v8/test/mjsunit/es6/string-codepointat.js')
-rw-r--r-- | deps/v8/test/mjsunit/es6/string-codepointat.js | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/deps/v8/test/mjsunit/es6/string-codepointat.js b/deps/v8/test/mjsunit/es6/string-codepointat.js new file mode 100644 index 0000000000..976d5be6af --- /dev/null +++ b/deps/v8/test/mjsunit/es6/string-codepointat.js @@ -0,0 +1,89 @@ +// Copyright 2014 the V8 project authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Tests taken from: +// https://github.com/mathiasbynens/String.prototype.codePointAt + +assertEquals(String.prototype.codePointAt.length, 1); +assertEquals(String.prototype.propertyIsEnumerable("codePointAt"), false); + +// String that starts with a BMP symbol +assertEquals("abc\uD834\uDF06def".codePointAt(""), 0x61); +assertEquals("abc\uD834\uDF06def".codePointAt("_"), 0x61); +assertEquals("abc\uD834\uDF06def".codePointAt(), 0x61); +assertEquals("abc\uD834\uDF06def".codePointAt(-Infinity), undefined); +assertEquals("abc\uD834\uDF06def".codePointAt(-1), undefined); +assertEquals("abc\uD834\uDF06def".codePointAt(-0), 0x61); +assertEquals("abc\uD834\uDF06def".codePointAt(0), 0x61); +assertEquals("abc\uD834\uDF06def".codePointAt(3), 0x1D306); +assertEquals("abc\uD834\uDF06def".codePointAt(4), 0xDF06); +assertEquals("abc\uD834\uDF06def".codePointAt(5), 0x64); +assertEquals("abc\uD834\uDF06def".codePointAt(42), undefined); +assertEquals("abc\uD834\uDF06def".codePointAt(Infinity), undefined); +assertEquals("abc\uD834\uDF06def".codePointAt(Infinity), undefined); +assertEquals("abc\uD834\uDF06def".codePointAt(NaN), 0x61); +assertEquals("abc\uD834\uDF06def".codePointAt(false), 0x61); +assertEquals("abc\uD834\uDF06def".codePointAt(null), 0x61); +assertEquals("abc\uD834\uDF06def".codePointAt(undefined), 0x61); + +// String that starts with an astral symbol +assertEquals("\uD834\uDF06def".codePointAt(""), 0x1D306); +assertEquals("\uD834\uDF06def".codePointAt("1"), 0xDF06); +assertEquals("\uD834\uDF06def".codePointAt("_"), 0x1D306); +assertEquals("\uD834\uDF06def".codePointAt(), 0x1D306); +assertEquals("\uD834\uDF06def".codePointAt(-1), undefined); +assertEquals("\uD834\uDF06def".codePointAt(-0), 0x1D306); +assertEquals("\uD834\uDF06def".codePointAt(0), 0x1D306); +assertEquals("\uD834\uDF06def".codePointAt(1), 0xDF06); +assertEquals("\uD834\uDF06def".codePointAt(42), undefined); +assertEquals("\uD834\uDF06def".codePointAt(false), 0x1D306); +assertEquals("\uD834\uDF06def".codePointAt(null), 0x1D306); +assertEquals("\uD834\uDF06def".codePointAt(undefined), 0x1D306); + +// Lone high surrogates +assertEquals("\uD834abc".codePointAt(""), 0xD834); +assertEquals("\uD834abc".codePointAt("_"), 0xD834); +assertEquals("\uD834abc".codePointAt(), 0xD834); +assertEquals("\uD834abc".codePointAt(-1), undefined); +assertEquals("\uD834abc".codePointAt(-0), 0xD834); +assertEquals("\uD834abc".codePointAt(0), 0xD834); +assertEquals("\uD834abc".codePointAt(false), 0xD834); +assertEquals("\uD834abc".codePointAt(NaN), 0xD834); +assertEquals("\uD834abc".codePointAt(null), 0xD834); +assertEquals("\uD834abc".codePointAt(undefined), 0xD834); + +// Lone low surrogates +assertEquals("\uDF06abc".codePointAt(""), 0xDF06); +assertEquals("\uDF06abc".codePointAt("_"), 0xDF06); +assertEquals("\uDF06abc".codePointAt(), 0xDF06); +assertEquals("\uDF06abc".codePointAt(-1), undefined); +assertEquals("\uDF06abc".codePointAt(-0), 0xDF06); +assertEquals("\uDF06abc".codePointAt(0), 0xDF06); +assertEquals("\uDF06abc".codePointAt(false), 0xDF06); +assertEquals("\uDF06abc".codePointAt(NaN), 0xDF06); +assertEquals("\uDF06abc".codePointAt(null), 0xDF06); +assertEquals("\uDF06abc".codePointAt(undefined), 0xDF06); + +assertThrows(function() { + String.prototype.codePointAt.call(undefined); +}, TypeError); +assertThrows(function() { + String.prototype.codePointAt.call(undefined, 4); +}, TypeError); +assertThrows(function() { + String.prototype.codePointAt.call(null); +}, TypeError); +assertThrows(function() { + String.prototype.codePointAt.call(null, 4); +}, TypeError); +assertEquals(String.prototype.codePointAt.call(42, 0), 0x34); +assertEquals(String.prototype.codePointAt.call(42, 1), 0x32); +assertEquals(String.prototype.codePointAt.call({ + toString: function() { return "abc"; } +}, 2), 0x63); +var tmp = 0; +assertEquals(String.prototype.codePointAt.call({ + toString: function() { ++tmp; return String(tmp); } +}, 0), 0x31); +assertEquals(tmp, 1); |