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Diffstat (limited to 'src/3rdparty/v8/test/mjsunit/double-equals.js')
-rw-r--r-- | src/3rdparty/v8/test/mjsunit/double-equals.js | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/src/3rdparty/v8/test/mjsunit/double-equals.js b/src/3rdparty/v8/test/mjsunit/double-equals.js deleted file mode 100644 index 5ebf92c..0000000 --- a/src/3rdparty/v8/test/mjsunit/double-equals.js +++ /dev/null @@ -1,236 +0,0 @@ -// 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. - -/** - * This test uses assert{True,False}(... == ...) instead of - * assertEquals(..., ...) to not rely on the details of the - * implementation of assertEquals. - */ - -function testEqual(a, b) { - assertTrue(a == b); - assertTrue(b == a); - assertFalse(a != b); - assertFalse(b != a); -} - -function testNotEqual(a, b) { - assertFalse(a == b); - assertFalse(b == a); - assertTrue(a != b); - assertTrue(b != a); -} - -// Object where ToPrimitive returns value. -function Wrapper(value) { - this.value = value; - this.valueOf = function () { return this.value; }; -} - -// Object where ToPrimitive returns value by failover to toString when -// valueOf isn't a function. -function Wrapper2(value) { - this.value = value; - this.valueOf = null; - this.toString = function () { return this.value; }; -} - - -// Compare values of same type. - -// Numbers are equal if same, unless NaN, which isn't equal to anything, and -// +/-0 being equal. - -testNotEqual(NaN, NaN); -testNotEqual(NaN, 0); -testNotEqual(NaN, Infinity); - -testEqual(Number.MAX_VALUE, Number.MAX_VALUE); -testEqual(Number.MIN_VALUE, Number.MIN_VALUE); -testEqual(Infinity, Infinity); -testEqual(-Infinity, -Infinity); - -testEqual(0, 0); -testEqual(0, -0); -testEqual(-0, -0); - -testNotEqual(0.9, 1); -testNotEqual(0.999999, 1); -testNotEqual(0.9999999999, 1); -testNotEqual(0.9999999999999, 1); - -// Strings are equal if containing the same code points. - -testEqual('hello', 'hello'); -testEqual('hello', 'hel' + 'lo'); -testEqual('', ''); -testEqual('\u0020\x20', ' '); // Escapes are not part of the value. - -// Booleans are equal if they are the same. - -testEqual(true, true); -testEqual(false, false); -testNotEqual(true, false); - -// Null and undefined are equal to themselves. - -testEqual(null, null); -testEqual(undefined, undefined); - -// Objects are equal if they are the same object only. - -testEqual(Math, Math); -testEqual(Object.prototype, Object.prototype); - - -(function () { - var x = new Wrapper(null); - var y = x, z = x; - testEqual(y, x); -})(); - -(function () { - var x = new Boolean(true); - var y = x, z = x; - testEqual(y, x); -})(); - -(function () { - var x = new Boolean(false); - var y = x, z = x; - testEqual(y, x); -})(); - -// Test comparing values of different types. - -// Null and undefined are equal to each-other, and to nothing else. -testEqual(null, undefined); -testEqual(undefined, null); - -testNotEqual(null, new Wrapper(null)); -testNotEqual(null, 0); -testNotEqual(null, false); -testNotEqual(null, ""); -testNotEqual(null, new Object()); -testNotEqual(undefined, new Wrapper(undefined)); -testNotEqual(undefined, 0); -testNotEqual(undefined, false); -testNotEqual(undefined, ""); -testNotEqual(undefined, new Object()); - -// Numbers compared to Strings will convert the string to a number using -// the internal ToNumber conversion. - -testEqual(1, '1'); -testEqual(255, '0xff'); -testEqual(0, '\r'); // ToNumber ignores tailing and trailing whitespace. -testEqual(1e19, '1e19'); -testEqual(Infinity, "Infinity"); - -// Booleans compared to anything else will be converted to numbers. -testEqual(false, 0); -testEqual(true, 1); -testEqual(false, "0"); // String also converted to number. -testEqual(true, "1"); - -// Objects compared to Number or String (or Boolean, since that's converted -// to Number too) is converted to primitive using ToPrimitive with NO HINT. -// Having no hint means Date gets a string hint, and everything else gets -// a number hint. - -testEqual(new Boolean(true), true); -testEqual(new Boolean(true), 1); // First to primtive boolean, then to number. -testEqual(new Boolean(false), false); -testEqual(new Boolean(false), 0); - -testEqual(new Wrapper(true), true); -testEqual(new Wrapper(true), 1); -testEqual(new Wrapper(false), false); -testEqual(new Wrapper(false), 0); - -testEqual(new Wrapper2(true), true); -testEqual(new Wrapper2(true), 1); -testEqual(new Wrapper2(false), false); -testEqual(new Wrapper2(false), 0); - -testEqual(new Number(1), true); -testEqual(new Number(1), 1); -testEqual(new Number(0), false); -testEqual(new Number(0), 0); - -// Date objects convert to string, not number (and the string does not -// convert to the number). -testEqual(new Date(42), String(new Date(42))); -testNotEqual(new Date(42), Number(new Date(42))); -var dnow = new Date(); -testEqual(dnow, dnow); -testEqual(dnow, String(dnow)); -testNotEqual(dnow, Number(dnow)); - -// Doesn't just call toString, but uses ToPrimitive which tries toString first -// and valueOf second. -dnow.toString = null; -testEqual(dnow, Number(dnow)); -dnow.valueOf = function () { return "42"; }; -testEqual(dnow, 42); -dnow.toString = function () { return "1"; }; -testEqual(dnow, true); - - -// Objects compared to other objects, or to null and undefined, are not -// converted to primitive. -testNotEqual(new Wrapper(null), new Wrapper(null)); -testNotEqual(new Boolean(true), new Boolean(true)); -testNotEqual(new Boolean(false), new Boolean(false)); -testNotEqual(new String("a"), new String("a")); -testNotEqual(new Number(42), new Number(42)); -testNotEqual(new Date(42), new Date(42)); -testNotEqual(new Array(42), new Array(42)); -testNotEqual(new Object(), new Object()); - -// Object that can't be converted to primitive. -var badObject = { - valueOf: null, - toString: function() { - return this; // Not primitive. - } -}; - -testEqual(badObject, badObject); -testNotEqual(badObject, {}); -testNotEqual(badObject, null); -testNotEqual(badObject, undefined); -// Forcing conversion will throw. -function testBadConversion(value) { - assertThrows(function() { return badObject == value; }); - assertThrows(function() { return badObject != value; }); - assertThrows(function() { return value == badObject; }); - assertThrows(function() { return value != badObject; }); -} -testBadConversion(0); -testBadConversion("string"); -testBadConversion(true); |