3 /* eslint no-proto: 0 */
4 var assert = require('assert')
5 var setPrototypeOf = require('..')
7 describe('setProtoOf(obj, proto)', function () {
8 it('should merge objects', function () {
9 var obj = { a: 1, b: 2 }
10 var proto = { b: 3, c: 4 }
11 var mergeObj = setPrototypeOf(obj, proto)
13 if (Object.getPrototypeOf) {
14 assert.strictEqual(Object.getPrototypeOf(obj), proto)
15 } else if ({ __proto__: [] } instanceof Array) {
16 assert.strictEqual(obj.__proto__, proto)
18 assert.strictEqual(obj.a, 1)
19 assert.strictEqual(obj.b, 2)
20 assert.strictEqual(obj.c, 4)
22 assert.strictEqual(mergeObj, obj)