internet-programming/lab2/node_modules/has/test/index.js

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2023-10-23 13:48:44 +04:00
'use strict';
var test = require('tape');
var has = require('../');
test('has', function (t) {
t.equal(has({}, 'hasOwnProperty'), false, 'object literal does not have own property "hasOwnProperty"');
t.equal(has(Object.prototype, 'hasOwnProperty'), true, 'Object.prototype has own property "hasOwnProperty"');
t['throws'](function () {
has(null, 'throws');
}, TypeError, 'calling has on null throws TypeError');
t['throws'](function () {
has(void 0, 'throws');
}, TypeError, 'calling has on undefined throws TypeError');
t.end();
});