securityos/node_modules/object-is/test/shimmed.js

29 lines
802 B
JavaScript

'use strict';
require('../auto');
var runTests = require('./tests');
var test = require('tape');
var defineProperties = require('define-properties');
var callBind = require('call-bind');
var isEnumerable = Object.prototype.propertyIsEnumerable;
var functionsHaveNames = require('functions-have-names')();
test('shimmed', function (t) {
t.equal(Object.is.length, 2, 'Object.is has a length of 2');
t.test('Function name', { skip: !functionsHaveNames }, function (st) {
st.equal(Object.is.name, 'is', 'Object.is has name "is"');
st.end();
});
t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) {
et.equal(false, isEnumerable.call(Object, 'is'), 'Object.is is not enumerable');
et.end();
});
runTests(callBind(Object.is, Object), t);
t.end();
});