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							260 lines
						
					
					
						
							8.3 KiB
						
					
					
				
			
		
		
	
	
							260 lines
						
					
					
						
							8.3 KiB
						
					
					
				'use strict'; | 
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 | 
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var GetIntrinsic = require('../'); | 
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 | 
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var test = require('tape'); | 
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var forEach = require('foreach'); | 
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var debug = require('object-inspect'); | 
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var generatorFns = require('make-generator-function')(); | 
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var asyncFns = require('make-async-function').list(); | 
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var asyncGenFns = require('make-async-generator-function')(); | 
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 | 
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var callBound = require('call-bind/callBound'); | 
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var v = require('es-value-fixtures'); | 
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var $gOPD = require('es-abstract/helpers/getOwnPropertyDescriptor'); | 
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var defineProperty = require('es-abstract/test/helpers/defineProperty'); | 
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 | 
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var $isProto = callBound('%Object.prototype.isPrototypeOf%'); | 
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 | 
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test('export', function (t) { | 
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	t.equal(typeof GetIntrinsic, 'function', 'it is a function'); | 
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	t.equal(GetIntrinsic.length, 2, 'function has length of 2'); | 
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 | 
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	t.end(); | 
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}); | 
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 | 
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test('throws', function (t) { | 
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	t['throws']( | 
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		function () { GetIntrinsic('not an intrinsic'); }, | 
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		SyntaxError, | 
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		'nonexistent intrinsic throws a syntax error' | 
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	); | 
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 | 
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	t['throws']( | 
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		function () { GetIntrinsic(''); }, | 
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		TypeError, | 
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		'empty string intrinsic throws a type error' | 
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	); | 
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 | 
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	t['throws']( | 
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		function () { GetIntrinsic('.'); }, | 
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		SyntaxError, | 
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		'"just a dot" intrinsic throws a syntax error' | 
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	); | 
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 | 
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	t['throws']( | 
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		function () { GetIntrinsic('%String'); }, | 
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		SyntaxError, | 
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		'Leading % without trailing % throws a syntax error' | 
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	); | 
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 | 
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	t['throws']( | 
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		function () { GetIntrinsic('String%'); }, | 
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		SyntaxError, | 
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		'Trailing % without leading % throws a syntax error' | 
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	); | 
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 | 
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	t['throws']( | 
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		function () { GetIntrinsic("String['prototype]"); }, | 
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		SyntaxError, | 
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		'Dynamic property access is disallowed for intrinsics (unterminated string)' | 
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	); | 
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 | 
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	t['throws']( | 
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		function () { GetIntrinsic('%Proxy.prototype.undefined%'); }, | 
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		TypeError, | 
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		"Throws when middle part doesn't exist (%Proxy.prototype.undefined%)" | 
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	); | 
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 | 
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	forEach(v.nonStrings, function (nonString) { | 
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		t['throws']( | 
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			function () { GetIntrinsic(nonString); }, | 
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			TypeError, | 
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			debug(nonString) + ' is not a String' | 
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		); | 
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	}); | 
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 | 
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	forEach(v.nonBooleans, function (nonBoolean) { | 
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		t['throws']( | 
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			function () { GetIntrinsic('%', nonBoolean); }, | 
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			TypeError, | 
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			debug(nonBoolean) + ' is not a Boolean' | 
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		); | 
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	}); | 
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 | 
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	forEach([ | 
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		'toString', | 
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		'propertyIsEnumerable', | 
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		'hasOwnProperty' | 
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	], function (objectProtoMember) { | 
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		t['throws']( | 
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			function () { GetIntrinsic(objectProtoMember); }, | 
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			SyntaxError, | 
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			debug(objectProtoMember) + ' is not an intrinsic' | 
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		); | 
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	}); | 
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 | 
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	t.end(); | 
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}); | 
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 | 
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test('base intrinsics', function (t) { | 
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	t.equal(GetIntrinsic('%Object%'), Object, '%Object% yields Object'); | 
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	t.equal(GetIntrinsic('Object'), Object, 'Object yields Object'); | 
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	t.equal(GetIntrinsic('%Array%'), Array, '%Array% yields Array'); | 
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	t.equal(GetIntrinsic('Array'), Array, 'Array yields Array'); | 
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 | 
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	t.end(); | 
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}); | 
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 | 
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test('dotted paths', function (t) { | 
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	t.equal(GetIntrinsic('%Object.prototype.toString%'), Object.prototype.toString, '%Object.prototype.toString% yields Object.prototype.toString'); | 
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	t.equal(GetIntrinsic('Object.prototype.toString'), Object.prototype.toString, 'Object.prototype.toString yields Object.prototype.toString'); | 
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	t.equal(GetIntrinsic('%Array.prototype.push%'), Array.prototype.push, '%Array.prototype.push% yields Array.prototype.push'); | 
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	t.equal(GetIntrinsic('Array.prototype.push'), Array.prototype.push, 'Array.prototype.push yields Array.prototype.push'); | 
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 | 
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	test('underscore paths are aliases for dotted paths', { skip: !Object.isFrozen || Object.isFrozen(Object.prototype) }, function (st) { | 
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		var original = GetIntrinsic('%ObjProto_toString%'); | 
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 | 
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		forEach([ | 
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			'%Object.prototype.toString%', | 
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			'Object.prototype.toString', | 
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			'%ObjectPrototype.toString%', | 
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			'ObjectPrototype.toString', | 
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			'%ObjProto_toString%', | 
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			'ObjProto_toString' | 
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		], function (name) { | 
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			defineProperty(Object.prototype, 'toString', { | 
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				value: function toString() { | 
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					return original.apply(this, arguments); | 
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				} | 
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			}); | 
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			st.equal(GetIntrinsic(name), original, name + ' yields original Object.prototype.toString'); | 
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		}); | 
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 | 
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		defineProperty(Object.prototype, 'toString', { value: original }); | 
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		st.end(); | 
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	}); | 
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 | 
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	test('dotted paths cache', { skip: !Object.isFrozen || Object.isFrozen(Object.prototype) }, function (st) { | 
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		var original = GetIntrinsic('%Object.prototype.propertyIsEnumerable%'); | 
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 | 
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		forEach([ | 
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			'%Object.prototype.propertyIsEnumerable%', | 
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			'Object.prototype.propertyIsEnumerable', | 
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			'%ObjectPrototype.propertyIsEnumerable%', | 
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			'ObjectPrototype.propertyIsEnumerable' | 
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		], function (name) { | 
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			// eslint-disable-next-line no-extend-native | 
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			Object.prototype.propertyIsEnumerable = function propertyIsEnumerable() { | 
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				return original.apply(this, arguments); | 
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			}; | 
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			st.equal(GetIntrinsic(name), original, name + ' yields cached Object.prototype.propertyIsEnumerable'); | 
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		}); | 
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 | 
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		// eslint-disable-next-line no-extend-native | 
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		Object.prototype.propertyIsEnumerable = original; | 
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		st.end(); | 
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	}); | 
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 | 
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	test('dotted path reports correct error', function (st) { | 
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		st['throws'](function () { | 
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			GetIntrinsic('%NonExistentIntrinsic.prototype.property%'); | 
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		}, /%NonExistentIntrinsic%/, 'The base intrinsic of %NonExistentIntrinsic.prototype.property% is %NonExistentIntrinsic%'); | 
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		st['throws'](function () { | 
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			GetIntrinsic('%NonExistentIntrinsicPrototype.property%'); | 
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		}, /%NonExistentIntrinsicPrototype%/, 'The base intrinsic of %NonExistentIntrinsicPrototype.property% is %NonExistentIntrinsicPrototype%'); | 
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		st.end(); | 
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	}); | 
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 | 
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	t.end(); | 
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}); | 
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 | 
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test('accessors', { skip: !$gOPD || typeof Map !== 'function' }, function (t) { | 
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	var actual = $gOPD(Map.prototype, 'size'); | 
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	t.ok(actual, 'Map.prototype.size has a descriptor'); | 
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	t.equal(typeof actual.get, 'function', 'Map.prototype.size has a getter function'); | 
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	t.equal(GetIntrinsic('%Map.prototype.size%'), actual.get, '%Map.prototype.size% yields the getter for it'); | 
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	t.equal(GetIntrinsic('Map.prototype.size'), actual.get, 'Map.prototype.size yields the getter for it'); | 
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 | 
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	t.end(); | 
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}); | 
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test('generator functions', { skip: !generatorFns.length }, function (t) { | 
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	var $GeneratorFunction = GetIntrinsic('%GeneratorFunction%'); | 
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	var $GeneratorFunctionPrototype = GetIntrinsic('%Generator%'); | 
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	var $GeneratorPrototype = GetIntrinsic('%GeneratorPrototype%'); | 
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 | 
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	forEach(generatorFns, function (genFn) { | 
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		var fnName = genFn.name; | 
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		fnName = fnName ? "'" + fnName + "'" : 'genFn'; | 
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 | 
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		t.ok(genFn instanceof $GeneratorFunction, fnName + ' instanceof %GeneratorFunction%'); | 
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		t.ok($isProto($GeneratorFunctionPrototype, genFn), '%Generator% is prototype of ' + fnName); | 
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		t.ok($isProto($GeneratorPrototype, genFn.prototype), '%GeneratorPrototype% is prototype of ' + fnName + '.prototype'); | 
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	}); | 
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 | 
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	t.end(); | 
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}); | 
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 | 
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test('async functions', { skip: !asyncFns.length }, function (t) { | 
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	var $AsyncFunction = GetIntrinsic('%AsyncFunction%'); | 
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	var $AsyncFunctionPrototype = GetIntrinsic('%AsyncFunctionPrototype%'); | 
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 | 
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	forEach(asyncFns, function (asyncFn) { | 
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		var fnName = asyncFn.name; | 
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		fnName = fnName ? "'" + fnName + "'" : 'asyncFn'; | 
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 | 
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		t.ok(asyncFn instanceof $AsyncFunction, fnName + ' instanceof %AsyncFunction%'); | 
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		t.ok($isProto($AsyncFunctionPrototype, asyncFn), '%AsyncFunctionPrototype% is prototype of ' + fnName); | 
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	}); | 
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 | 
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	t.end(); | 
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}); | 
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 | 
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test('async generator functions', { skip: asyncGenFns.length === 0 }, function (t) { | 
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	var $AsyncGeneratorFunction = GetIntrinsic('%AsyncGeneratorFunction%'); | 
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	var $AsyncGeneratorFunctionPrototype = GetIntrinsic('%AsyncGenerator%'); | 
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	var $AsyncGeneratorPrototype = GetIntrinsic('%AsyncGeneratorPrototype%'); | 
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 | 
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	forEach(asyncGenFns, function (asyncGenFn) { | 
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		var fnName = asyncGenFn.name; | 
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		fnName = fnName ? "'" + fnName + "'" : 'asyncGenFn'; | 
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 | 
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		t.ok(asyncGenFn instanceof $AsyncGeneratorFunction, fnName + ' instanceof %AsyncGeneratorFunction%'); | 
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		t.ok($isProto($AsyncGeneratorFunctionPrototype, asyncGenFn), '%AsyncGenerator% is prototype of ' + fnName); | 
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		t.ok($isProto($AsyncGeneratorPrototype, asyncGenFn.prototype), '%AsyncGeneratorPrototype% is prototype of ' + fnName + '.prototype'); | 
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	}); | 
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 | 
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	t.end(); | 
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}); | 
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 | 
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test('%ThrowTypeError%', function (t) { | 
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	var $ThrowTypeError = GetIntrinsic('%ThrowTypeError%'); | 
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 | 
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	t.equal(typeof $ThrowTypeError, 'function', 'is a function'); | 
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	t['throws']( | 
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		$ThrowTypeError, | 
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		TypeError, | 
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		'%ThrowTypeError% throws a TypeError' | 
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	); | 
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 | 
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	t.end(); | 
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}); | 
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 | 
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test('allowMissing', { skip: asyncGenFns.length > 0 }, function (t) { | 
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	t['throws']( | 
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		function () { GetIntrinsic('%AsyncGeneratorPrototype%'); }, | 
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		TypeError, | 
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		'throws when missing' | 
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	); | 
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 | 
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	t.equal( | 
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		GetIntrinsic('%AsyncGeneratorPrototype%', true), | 
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		undefined, | 
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		'does not throw when allowMissing' | 
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	); | 
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 | 
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	t.end(); | 
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});
 | 
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 |