odin-js-fundamentals-part-4/node_modules/object.entries/test/shimmed.js

36 lines
1.1 KiB
JavaScript

'use strict';
require('../auto');
var test = require('tape');
var defineProperties = require('define-properties');
var isEnumerable = Object.prototype.propertyIsEnumerable;
var functionsHaveNames = require('functions-have-names');
var runTests = require('./tests');
test('shimmed', function (t) {
t.equal(Object.entries.length, 1, 'Object.entries has a length of 1');
t.test('Function name', { skip: !functionsHaveNames }, function (st) {
st.equal(Object.entries.name, 'entries', 'Object.entries has name "entries"');
st.end();
});
t.test('enumerability', { skip: !defineProperties.supportsDescriptors }, function (et) {
et.equal(false, isEnumerable.call(Object, 'entries'), 'Object.entries is not enumerable');
et.end();
});
var supportsStrictMode = (function () { return typeof this === 'undefined'; }());
t.test('bad object value', { skip: !supportsStrictMode }, function (st) {
st['throws'](function () { return Object.entries(undefined); }, TypeError, 'undefined is not an object');
st['throws'](function () { return Object.entries(null); }, TypeError, 'null is not an object');
st.end();
});
runTests(Object.entries, t);
t.end();
});