95 lines
2.8 KiB
JavaScript
95 lines
2.8 KiB
JavaScript
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'use strict';
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var GetIntrinsic = require('../GetIntrinsic');
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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 v = require('./helpers/values');
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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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t.end();
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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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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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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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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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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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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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t.end();
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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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t.end();
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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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t.end();
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});
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test('accessors', { skip: !Object.getOwnPropertyDescriptor || typeof Map !== 'function' }, function (t) {
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var actual = Object.getOwnPropertyDescriptor(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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t.end();
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});
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