Add tests

src/index.js

@@ -0,0 +1,3 @@
+module.exports = function reverse (n) {
+
+}

test.js

@@ -1,5 +1,104 @@
 const assert = require('assert');
 
-it('true should be true', () => {
-  assert.equal(true, true);
+const reverse = require('./src');
+
+it('Should return 261 when 162 given', () => {
+  const reversed = reverse(162);
+
+  assert.equal(reversed, 261);
+});
+it('Should return 291 when -192 given', () => {
+  const reversed = reverse(-192);
+
+  assert.equal(reversed, 291);
+});
+it('Should return 252 when -252 given', () => {
+  const reversed = reverse(-252);
+
+  assert.equal(reversed, 252);
+});
+it('Should return 71 when 170 given', () => {
+  const reversed = reverse(170);
+
+  assert.equal(reversed, 71);
+});
+it('Should return 605 when 506 given', () => {
+  const reversed = reverse(506);
+
+  assert.equal(reversed, 605);
+});
+it('Should return 835 when -538 given', () => {
+  const reversed = reverse(-538);
+
+  assert.equal(reversed, 835);
+});
+it('Should return 465 when 564 given', () => {
+  const reversed = reverse(564);
+
+  assert.equal(reversed, 465);
+});
+it('Should return 891 when -198 given', () => {
+  const reversed = reverse(-198);
+
+  assert.equal(reversed, 891);
+});
+it('Should return 715 when -517 given', () => {
+  const reversed = reverse(-517);
+
+  assert.equal(reversed, 715);
+});
+it('Should return 601 when -106 given', () => {
+  const reversed = reverse(-106);
+
+  assert.equal(reversed, 601);
+});
+it('Should return 462 when -264 given', () => {
+  const reversed = reverse(-264);
+
+  assert.equal(reversed, 462);
+});
+it('Should return 332 when 233 given', () => {
+  const reversed = reverse(233);
+
+  assert.equal(reversed, 332);
+});
+it('Should return 763 when -367 given', () => {
+  const reversed = reverse(-367);
+
+  assert.equal(reversed, 763);
+});
+it('Should return 25 when 520 given', () => {
+  const reversed = reverse(520);
+
+  assert.equal(reversed, 25);
+});
+it('Should return 822 when 228 given', () => {
+  const reversed = reverse(228);
+
+  assert.equal(reversed, 822);
+});
+it('Should return 231 when -132 given', () => {
+  const reversed = reverse(-132);
+
+  assert.equal(reversed, 231);
+});
+it('Should return 152 when -251 given', () => {
+  const reversed = reverse(-251);
+
+  assert.equal(reversed, 152);
+});
+it('Should return 561 when 165 given', () => {
+  const reversed = reverse(165);
+
+  assert.equal(reversed, 561);
+});
+it('Should return 524 when -425 given', () => {
+  const reversed = reverse(-425);
+
+  assert.equal(reversed, 524);
+});
+it('Should return 535 when 535 given', () => {
+  const reversed = reverse(535);
+
+  assert.equal(reversed, 535);
 });