97 lines
7.1 KiB
JavaScript
97 lines
7.1 KiB
JavaScript
description("Test to ensure correct behaviour of Object.getOwnPropertyDescriptor");
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function descriptorShouldBe(object, property, expected) {
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var test = 'Object.getOwnPropertyDescriptor('+object+", "+property+')';
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if ("writable" in expected) {
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// shouldBe(test+'.writable', '' + expected.writable);
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shouldBe(test+'.value', '' + expected.value);
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shouldBeFalse(test+".hasOwnProperty('get')");
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shouldBeFalse(test+".hasOwnProperty('set')");
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} else {
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shouldBe(test+'.get', '' + expected.get);
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shouldBe(test+'.set', '' + expected.set);
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shouldBeFalse(test+".hasOwnProperty('value')");
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shouldBeFalse(test+".hasOwnProperty('writable')");
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}
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shouldBe(test+'.enumerable', '' + expected.enumerable);
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shouldBe(test+'.configurable', '' + expected.configurable);
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}
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shouldBeUndefined("Object.getOwnPropertyDescriptor({}, 'undefinedProperty')");
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descriptorShouldBe("{definedProperty:'defined'}", "'definedProperty'", {writable: true, enumerable: true, configurable: true, value:'"defined"'});
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descriptorShouldBe("Array.prototype", "'concat'", {writable: true, enumerable: false, configurable: true, value:"Array.prototype.concat"});
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descriptorShouldBe("Date.prototype", "'toISOString'", {writable: true, enumerable: false, configurable: true, value: "Date.prototype.toISOString"});
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descriptorShouldBe("String.prototype", "'concat'", {writable: true, enumerable: false, configurable: true, value:"String.prototype.concat"});
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descriptorShouldBe("RegExp.prototype", "'exec'", {writable: true, enumerable: false, configurable: true, value:"RegExp.prototype.exec"});
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descriptorShouldBe("document.__proto__.__proto__", "'createElement'", {writable: true, enumerable: true, configurable: true, value:"document.createElement"});
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descriptorShouldBe("Number", "'NEGATIVE_INFINITY'", {writable: false, enumerable: false, configurable: false, value:"Number.NEGATIVE_INFINITY"});
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var RegExp$_Getter = Object.getOwnPropertyDescriptor(RegExp, '$_').get;
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var RegExp$_Setter = Object.getOwnPropertyDescriptor(RegExp, '$_').set;
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descriptorShouldBe("RegExp", "'$_'", {get: "RegExp$_Getter", set: "RegExp$_Setter", enumerable: false, configurable: true,});
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descriptorShouldBe("Node", "'DOCUMENT_POSITION_DISCONNECTED'", {writable: false, enumerable: true, configurable: false, value:"Node.DOCUMENT_POSITION_DISCONNECTED"});
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descriptorShouldBe("Math", "'sin'", {writable: true, enumerable: false, configurable: true, value:"Math.sin"});
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descriptorShouldBe("[1,2,3]", "0", {writable: true, enumerable: true, configurable: true, value:"1"});
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descriptorShouldBe("[1,2,3]", "'length'", {writable: true, enumerable: false, configurable: false, value:"3"});
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descriptorShouldBe("[1,2,3]", "'length'", {writable: true, enumerable: false, configurable: false, value:"3"});
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descriptorShouldBe("/(a)*/g.exec('a')", "0", {writable: true, enumerable: true, configurable: true, value:"'a'"});
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descriptorShouldBe("/(a)*/g.exec('a')", "'length'", {writable: true, enumerable: false, configurable: false, value:2});
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descriptorShouldBe("function(){}", "'length'", {writable: false, enumerable: false, configurable: true, value:0});
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descriptorShouldBe("Math.sin", "'length'", {writable: false, enumerable: false, configurable: true, value:1});
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descriptorShouldBe("Math.sin", "'name'", {writable: false, enumerable: false, configurable: true, value:"'sin'"});
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var global = this;
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descriptorShouldBe("global", "'global'", {writable: true, enumerable: true, configurable: false, value:"global"});
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descriptorShouldBe("global", "'undefined'", {writable: false, enumerable: false, configurable: false, value:"undefined"});
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descriptorShouldBe("global", "'NaN'", {writable: false, enumerable: false, configurable: false, value:"NaN"});
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descriptorShouldBe("global", "'Infinity'", {writable: false, enumerable: false, configurable: false, value:"Infinity"});
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var globalWindowGetter = Object.getOwnPropertyDescriptor(global, 'window').get;
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descriptorShouldBe("global", "'window'", {get: 'globalWindowGetter', set: undefined, enumerable: true, configurable: false});
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descriptorShouldBe("global", "'XMLHttpRequest'", {writable: true, enumerable: false, configurable: true, value:"XMLHttpRequest"});
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descriptorShouldBe("global", "0", {writable: true, enumerable: true, configurable: true, value:"global[0]"});
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descriptorShouldBe("document.getElementsByTagName('div')", "0", {writable: false, enumerable: true, configurable: true, value:"document.getElementsByTagName('div')[0]"});
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descriptorShouldBe("document.getElementsByClassName('pass')", "0", {writable: false, enumerable: true, configurable: true, value:"document.getElementsByClassName('pass')[0]"});
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var canvas = document.createElement("canvas");
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var canvasPixelArray = canvas.getContext("2d").createImageData(10,10).data;
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descriptorShouldBe("canvasPixelArray", "0", {writable: true, enumerable: true, configurable: true, value:"canvasPixelArray[0]"});
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var select = document.createElement("select");
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select.innerHTML = "<option>foo</option>";
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descriptorShouldBe("select", "0", {writable: true, enumerable: true, configurable: true, value:"select[0]"});
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var objectWithGetter = {};
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function getterFunc(){};
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objectWithGetter.__defineGetter__("getter", getterFunc);
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descriptorShouldBe("objectWithGetter", "'getter'", {"get": "getterFunc", "set": undefined, enumerable: true, configurable: true});
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var objectWithSetter = {};
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function setterFunc(){};
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objectWithSetter.__defineSetter__("setter", setterFunc);
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descriptorShouldBe("objectWithSetter", "'setter'", {"set": "setterFunc", "get": undefined, enumerable: true, configurable: true});
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var objectWithAccessor = {};
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objectWithAccessor.__defineSetter__("accessor", setterFunc);
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objectWithAccessor.__defineGetter__("accessor", getterFunc);
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descriptorShouldBe("objectWithAccessor", "'accessor'", {"set": "setterFunc", "get": "getterFunc", enumerable: true, configurable: true});
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shouldThrow("Object.getOwnPropertyDescriptor(null)");
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shouldThrow("Object.getOwnPropertyDescriptor(undefined)");
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shouldBe("Object.getOwnPropertyDescriptor(1)", "undefined");
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shouldBe("Object.getOwnPropertyDescriptor('')", "undefined");
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shouldBe("Object.getOwnPropertyDescriptor(true)", "undefined");
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shouldBe("Object.getOwnPropertyDescriptor(false)", "undefined");
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debug("Checking property ordering");
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var normalOrder = ["'value'", "'writable'", "'enumerable'", "'configurable'"];
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var accessorOrder = ["'get'", "'set'", "'enumerable'", "'configurable'"];
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var i = 0;
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for (var property in Object.getOwnPropertyDescriptor(Math, "sin"))
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shouldBe('property', normalOrder[i++]);
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i = 0;
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for (var property in Object.getOwnPropertyDescriptor(objectWithGetter, "getter"))
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shouldBe('property', accessorOrder[i++]);
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i = 0;
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for (var property in Object.getOwnPropertyDescriptor(objectWithSetter, "setter"))
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shouldBe('property', accessorOrder[i++]);
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i = 0;
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for (var property in Object.getOwnPropertyDescriptor(objectWithAccessor, "accessor"))
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shouldBe('property', accessorOrder[i++]);
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var regexpPrototypeGlobalGetter = Object.getOwnPropertyDescriptor(RegExp.prototype, 'global').get;
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descriptorShouldBe("RegExp.prototype", "'global'", {get: 'regexpPrototypeGlobalGetter', set: undefined, enumerable: false, configurable: true});
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