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30 lines
830 B
30 lines
830 B
'use strict'; |
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require('es5-shim'); |
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var numberIsNaN = require('../'); |
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numberIsNaN.shim(); |
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var test = require('tape'); |
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var defineProperties = require('define-properties'); |
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var isEnumerable = Object.prototype.propertyIsEnumerable; |
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var functionsHaveNames = require('functions-have-names')(); |
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var runTests = require('./tests'); |
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test('shimmed', function (t) { |
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t.equal(Number.isNaN.length, 1, 'Number.isNaN has a length of 1'); |
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t.test('Function name', { skip: !functionsHaveNames }, function (st) { |
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st.equal(Number.isNaN.name, 'isNaN', 'Number.isNaN has name "isNaN"'); |
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st.end(); |
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}); |
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t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) { |
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et.equal(false, isEnumerable.call(Number, 'isNaN'), 'Number.isNaN is not enumerable'); |
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et.end(); |
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}); |
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runTests(Number.isNaN, t); |
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t.end(); |
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});
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