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Diffstat (limited to 'src/3rdparty/v8/test/mjsunit/string-charcodeat.js')
-rw-r--r-- | src/3rdparty/v8/test/mjsunit/string-charcodeat.js | 233 |
1 files changed, 233 insertions, 0 deletions
diff --git a/src/3rdparty/v8/test/mjsunit/string-charcodeat.js b/src/3rdparty/v8/test/mjsunit/string-charcodeat.js new file mode 100644 index 0000000..8be6a09 --- /dev/null +++ b/src/3rdparty/v8/test/mjsunit/string-charcodeat.js @@ -0,0 +1,233 @@ +// Copyright 2008 the V8 project authors. All rights reserved. +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following +// disclaimer in the documentation and/or other materials provided +// with the distribution. +// * Neither the name of Google Inc. nor the names of its +// contributors may be used to endorse or promote products derived +// from this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +// Flags: --allow-natives-syntax + +/** + * @fileoverview Check all sorts of borderline cases for charCodeAt. + */ + +function Cons() { + return "Te" + "st testing 123"; +} + + +function Deep() { + var a = "T"; + a += "e"; + a += "s"; + a += "ting testing 123"; + return a; +} + + +function Slice() { + return "testing Testing testing 123456789012345".substring(8, 22); +} + + +function Flat() { + return "Testing testing 123"; +} + +function Cons16() { + return "Te" + "\u1234t testing 123"; +} + + +function Deep16() { + var a = "T"; + a += "e"; + a += "\u1234"; + a += "ting testing 123"; + return a; +} + + +function Slice16Beginning() { + return "Te\u1234t testing testing 123".substring(0, 14); +} + + +function Slice16Middle() { + return "test Te\u1234t testing testing 123".substring(5, 19); +} + + +function Slice16End() { + return "test Te\u1234t".substring(5, 9); +} + + +function Flat16() { + return "Te\u1234ting testing 123"; +} + + +function Thing() { +} + + +function NotAString() { + var n = new Thing(); + n.toString = function() { return "Test"; }; + n.charCodeAt = String.prototype.charCodeAt; + return n; +} + + +function NotAString16() { + var n = new Thing(); + n.toString = function() { return "Te\u1234t"; }; + n.charCodeAt = String.prototype.charCodeAt; + return n; +} + + +function TestStringType(generator, sixteen) { + var g = generator; + var len = g().toString().length; + var t = sixteen ? "t" : "f" + t += generator.name; + assertTrue(isNaN(g().charCodeAt(-1e19)), 1 + t); + assertTrue(isNaN(g().charCodeAt(-0x80000001)), 2 + t); + assertTrue(isNaN(g().charCodeAt(-0x80000000)), 3 + t); + assertTrue(isNaN(g().charCodeAt(-0x40000000)), 4 + t); + assertTrue(isNaN(g().charCodeAt(-1)), 5 + t); + assertTrue(isNaN(g().charCodeAt(len)), 6 + t); + assertTrue(isNaN(g().charCodeAt(len + 1)), 7 + t); + assertTrue(isNaN(g().charCodeAt(0x3fffffff)), 8 + t); + assertTrue(isNaN(g().charCodeAt(0x7fffffff)), 9 + t); + assertTrue(isNaN(g().charCodeAt(0x80000000)), 10 + t); + assertTrue(isNaN(g().charCodeAt(1e9)), 11 + t); + assertEquals(84, g().charCodeAt(0), 12 + t); + assertEquals(84, g().charCodeAt("test"), 13 + t); + assertEquals(84, g().charCodeAt(""), 14 + t); + assertEquals(84, g().charCodeAt(null), 15 + t); + assertEquals(84, g().charCodeAt(undefined), 16 + t); + assertEquals(84, g().charCodeAt(), 17 + t); + assertEquals(84, g().charCodeAt(void 0), 18 + t); + assertEquals(84, g().charCodeAt(false), 19 + t); + assertEquals(101, g().charCodeAt(true), 20 + t); + assertEquals(101, g().charCodeAt(1), 21 + t); + assertEquals(sixteen ? 0x1234 : 115, g().charCodeAt(2), 22 + t); + assertEquals(116, g().charCodeAt(3), 23 + t); + assertEquals(101, g().charCodeAt(1.1), 24 + t); + assertEquals(sixteen ? 0x1234 : 115, g().charCodeAt(2.1718), 25 + t); + assertEquals(116, g().charCodeAt(3.14159), 26 + t); +} + + +TestStringType(Cons, false); +TestStringType(Deep, false); +TestStringType(Slice, false); +TestStringType(Flat, false); +TestStringType(NotAString, false); +TestStringType(Cons16, true); +TestStringType(Deep16, true); +TestStringType(Slice16Beginning, true); +TestStringType(Slice16Middle, true); +TestStringType(Slice16End, true); +TestStringType(Flat16, true); +TestStringType(NotAString16, true); + + +function ConsNotSmiIndex() { + var str = Cons(); + assertTrue(isNaN(str.charCodeAt(0x7fffffff))); +} + +for (var i = 0; i < 5; i++) { + ConsNotSmiIndex(); +} +%OptimizeFunctionOnNextCall(ConsNotSmiIndex); +ConsNotSmiIndex(); + + +for (var i = 0; i != 10; i++) { + assertEquals(101, Cons16().charCodeAt(1.1)); + assertEquals('e', Cons16().charAt(1.1)); +} + +function StupidThing() { + // Doesn't return a string from toString! + this.toString = function() { return 42; } + this.charCodeAt = String.prototype.charCodeAt; +} + +assertEquals(52, new StupidThing().charCodeAt(0), 27); +assertEquals(50, new StupidThing().charCodeAt(1), 28); +assertTrue(isNaN(new StupidThing().charCodeAt(2)), 29); +assertTrue(isNaN(new StupidThing().charCodeAt(-1)), 30); + + +// Medium (>255) and long (>65535) strings. + +var medium = "12345678"; +medium += medium; // 16. +medium += medium; // 32. +medium += medium; // 64. +medium += medium; // 128. +medium += medium; // 256. + +var long = medium; +long += long + long + long; // 1024. +long += long + long + long; // 4096. +long += long + long + long; // 16384. +long += long + long + long; // 65536. + +assertTrue(isNaN(medium.charCodeAt(-1)), 31); +assertEquals(49, medium.charCodeAt(0), 32); +assertEquals(56, medium.charCodeAt(255), 33); +assertTrue(isNaN(medium.charCodeAt(256)), 34); + +assertTrue(isNaN(long.charCodeAt(-1)), 35); +assertEquals(49, long.charCodeAt(0), 36); +assertEquals(56, long.charCodeAt(65535), 37); +assertTrue(isNaN(long.charCodeAt(65536)), 38); + + +// Test crankshaft code when the function is set directly on the +// string prototype object instead of the hidden prototype object. +// See http://code.google.com/p/v8/issues/detail?id=1070 + +String.prototype.x = String.prototype.charCodeAt; + +function directlyOnPrototype() { + assertEquals(97, "a".x(0)); + assertEquals(98, "b".x(0)); + assertEquals(99, "c".x(0)); + assertEquals(97, "a".x(0)); + assertEquals(98, "b".x(0)); + assertEquals(99, "c".x(0)); +} + +for (var i = 0; i < 5; i++) { + directlyOnPrototype(); +} +%OptimizeFunctionOnNextCall(directlyOnPrototype); +directlyOnPrototype(); |