refactor: export SimpleMap

src/SimpleMap.js

@@ -0,0 +1,21 @@
+export default class {
+ constructor () {
+ this.size = 0;
+ this.keys = [];
+ this.values = [];
+ }
+
+ get (key) {
+ const index = this.keys.indexOf(key);
+
+ return this.values[index];
+ }
+
+ set (key, value) {
+ this.keys.push(key);
+ this.values.push(value);
+ this.size = this.keys.length;
+
+ return value;
+ }
+}

tests/SimpleMap.js

@@ -0,0 +1,38 @@
+import {
+ expect
+} from 'chai';
+import SimpleMap from './../src/SimpleMap';
+
+describe('SimpleMap', () => {
+ context('simple map with primitive or object as keys', () => {
+ const values = [
+ [1, 'something'],
+ ['1', 'somethingElse'],
+ [{}, []],
+ [null, null]
+ ];
+
+ let map;
+
+ beforeEach(() => {
+ map = new SimpleMap();
+ });
+
+ it('should set', () => {
+ values.forEach(([key, value]) => {
+ map.set(key, value);
+ });
+ expect(map.size).to.equal(values.length);
+ });
+
+ it('should get', () => {
+ values.forEach(([key, value]) => {
+ map.set(key, value);
+ });
+
+ values.forEach(([key, value]) => {
+ expect(map.get(key)).to.equal(value);
+ });
+ });
+ });
+});