1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/js/src/tests/ecma_5/misc/builtin-methods-reject-null-undefined-this.js Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,153 @@
1.4 +/*
1.5 + * Any copyright is dedicated to the Public Domain.
1.6 + * http://creativecommons.org/licenses/publicdomain/
1.7 + */
1.8 +
1.9 +//-----------------------------------------------------------------------------
1.10 +var BUGNUMBER = 619283;
1.11 +var summary =
1.12 + "ECMAScript built-in methods that immediately throw when |this| is " +
1.13 + "|undefined| or |null| (due to CheckObjectCoercible, ToObject, or ToString)";
1.14 +
1.15 +print(BUGNUMBER + ": " + summary);
1.16 +
1.17 +/**************
1.18 + * BEGIN TEST *
1.19 + **************/
1.20 +
1.21 +// We can't just exhaustively loop over everything because 1) method properties
1.22 +// might be extensions with special |this| handling, and 2) some methods don't
1.23 +// *quite* immediately throw a TypeError, first thing, if |this| is |undefined|
1.24 +// or |null|, or their algorithms are very slightly ambiguous about whether they
1.25 +// do. Why? Ipse-dixitism. *shrug*
1.26 +
1.27 +var ClassToMethodMap =
1.28 + {
1.29 + Object: [/* "toString" has special |this| handling */
1.30 + "toLocaleString", "valueOf", "hasOwnProperty",
1.31 + /*
1.32 + * "isPrototypeOf" has special |this| handling already tested in
1.33 + * ecma_5/Object/isPrototypeOf.js.
1.34 + */
1.35 + /*
1.36 + * "isPrototypeOf" has special |this| handling already tested in
1.37 + * ecma_5/Object/propertyIsEnumerable.js.
1.38 + */],
1.39 + // Function methods often don't ToObject(this) as their very first step,
1.40 + // and they're already stepwise well-tested such that manual tests here
1.41 + // would be redundant.
1.42 + Array: ["toString", "toLocaleString", "concat", "join", "pop", "push",
1.43 + "reverse", "shift", "slice", "sort", "splice", "unshift",
1.44 + "indexOf", "lastIndexOf", "every", "some", "forEach", "map",
1.45 + "filter", "reduce", "reduceRight"],
1.46 + String: ["toString", "valueOf", "charAt", "charCodeAt", "concat",
1.47 + "indexOf", "lastIndexOf", "localeCompare", "match", "replace",
1.48 + "search", "slice", "split", "substring", "toLowerCase",
1.49 + "toLocaleLowerCase", "toUpperCase", "toLocaleUpperCase", "trim",
1.50 + /*
1.51 + * "trimLeft" and "trimRight" are non-standard and thus are tested
1.52 + * in ecma_5/extensions/trim-extensions.js.
1.53 + */
1.54 + ],
1.55 + Boolean: ["toString", "valueOf"],
1.56 + Number: ["toString", "toLocaleString", "valueOf",
1.57 + /*
1.58 + * toFixed doesn't *immediately* test |this| for number or
1.59 + * Number-ness, but because the ToInteger(void 0) which arguably
1.60 + * precedes it in the toFixed algorithm won't throw in this test,
1.61 + * we don't need to specially test it.
1.62 + */
1.63 + "toFixed",
1.64 + "toExponential", "toPrecision"],
1.65 + Date: ["toString", "toDateString", "toTimeString", "toLocaleString",
1.66 + "toLocaleDateString", "toLocaleTimeString", "valueOf", "getTime",
1.67 + "getFullYear", "getUTCFullYear", "getMonth", "getUTCMonth",
1.68 + "getDate", "getUTCDate", "getDay", "getUTCDay", "getHours",
1.69 + "getUTCHours", "getMinutes", "getUTCMinutes", "getSeconds",
1.70 + "getUTCSeconds", "getMilliseconds", "getUTCMilliseconds",
1.71 + /*
1.72 + * toFixed doesn't *immediately* test |this| for number or
1.73 + * Number-ness, but because the TimeClip(ToNumber(void 0)) which
1.74 + * arguably precedes it in the setTime algorithm won't throw in
1.75 + * this test, we don't need to specially test it.
1.76 + */
1.77 + "setTime",
1.78 + "getTimezoneOffset", "setMilliseconds", "setUTCMilliseconds",
1.79 + "setSeconds", "setUTCSeconds", "setMinutes", "setUTCMinutes",
1.80 + "setHours", "setUTCHours", "setDate", "setUTCDate", "setMonth",
1.81 + "setUTCMonth", "setFullYear", "setUTCFullYear", "toUTCString",
1.82 + "toISOString", "toJSON"],
1.83 + RegExp: ["exec", "test", "toString"],
1.84 + Error: ["toString"],
1.85 + };
1.86 +
1.87 +var badThisValues = [null, undefined];
1.88 +
1.89 +function testMethod(Class, className, method)
1.90 +{
1.91 + var expr;
1.92 +
1.93 + // Try out explicit this values
1.94 + for (var i = 0, sz = badThisValues.length; i < sz; i++)
1.95 + {
1.96 + var badThis = badThisValues[i];
1.97 +
1.98 + expr = className + ".prototype." + method + ".call(" + badThis + ")";
1.99 + try
1.100 + {
1.101 + Class.prototype[method].call(badThis);
1.102 + throw new Error(expr + " didn't throw a TypeError");
1.103 + }
1.104 + catch (e)
1.105 + {
1.106 + assertEq(e instanceof TypeError, true,
1.107 + "wrong error for " + expr + ", instead threw " + e);
1.108 + }
1.109 +
1.110 + expr = className + ".prototype." + method + ".apply(" + badThis + ")";
1.111 + try
1.112 + {
1.113 + Class.prototype[method].apply(badThis);
1.114 + throw new Error(expr + " didn't throw a TypeError");
1.115 + }
1.116 + catch (e)
1.117 + {
1.118 + assertEq(e instanceof TypeError, true,
1.119 + "wrong error for " + expr + ", instead threw " + e);
1.120 + }
1.121 + }
1.122 +
1.123 + // ..and for good measure..
1.124 +
1.125 + expr = "(0, " + className + ".prototype." + method + ")()"
1.126 + try
1.127 + {
1.128 + // comma operator to call GetValue() on the method and de-Reference it
1.129 + (0, Class.prototype[method])();
1.130 + throw new Error(expr + " didn't throw a TypeError");
1.131 + }
1.132 + catch (e)
1.133 + {
1.134 + assertEq(e instanceof TypeError, true,
1.135 + "wrong error for " + expr + ", instead threw " + e);
1.136 + }
1.137 +}
1.138 +
1.139 +for (var className in ClassToMethodMap)
1.140 +{
1.141 + var Class = this[className];
1.142 +
1.143 + var methodNames = ClassToMethodMap[className];
1.144 + for (var i = 0, sz = methodNames.length; i < sz; i++)
1.145 + {
1.146 + var method = methodNames[i];
1.147 + testMethod(Class, className, method);
1.148 + }
1.149 +}
1.150 +
1.151 +/******************************************************************************/
1.152 +
1.153 +if (typeof reportCompare === "function")
1.154 + reportCompare(true, true);
1.155 +
1.156 +print("All tests passed!");
