hexo/node_modules/has-proto/test/index.js

20 lines
496 B
JavaScript

'use strict';
var test = require('tape');
var hasProto = require('../');
test('hasProto', function (t) {
var result = hasProto();
t.equal(typeof result, 'boolean', 'returns a boolean (' + result + ')');
var obj = { __proto__: null };
if (result) {
t.notOk('toString' in obj, 'null object lacks toString');
} else {
t.ok('toString' in obj, 'without proto, null object has toString');
t.equal(obj.__proto__, null); // eslint-disable-line no-proto
}
t.end();
});