Add async logic with unit test example

index.js

@@ -0,0 +1,8 @@
+const { fetchQuote, fetchZen } = require("./lib/utils");
+const https = require("https");
+
+(async () => {
+  console.log("Fetching remote message... please wait.");
+  const msg = await fetchZen();
+  console.log(msg);
+})().catch(err => console.log("Oh noes!", err));

lib/utils.js

@@ -1,3 +1,5 @@
+const fetch = require("node-fetch");
+
 const utils = {
   greetings: to => {
     if (!to) {
@@ -7,7 +9,21 @@ const utils = {
     return `Hello ${to} 👋👋`;
   },
 
-  makeHeading: text => (text ? `<h1>${String(text).trim()}</h1>` : "")
+  makeHeading: text => (text ? `<h1>${String(text).trim()}</h1>` : ""),
+
+  fetchQuote: async function() {
+    let promise = new Promise((resolve, reject) => {
+      setTimeout(() => resolve("Hey there bud"), 500);
+    });
+    let result = await promise;
+    return result;
+  },
+
+  fetchZen: async function() {
+    let response = await fetch("https://api.github.com/octocat");
+    let quote = await response.text();
+    return quote;
+  }
 };
 
 module.exports = utils;

package.json

@@ -14,8 +14,8 @@
   "dependencies": {
     "codecov": "^3.1.0",
     "mocha": "^5.2.0",
-    "nyc": "^13.1.0",
-    "request": "2.46.0"
+    "node-fetch": "^2.5.0",
+    "nyc": "^13.1.0"
   },
   "devDependencies": {
     "eslint": "5.5.0",

test/utils.test.js

@@ -1,6 +1,14 @@
 var assert = require("assert");
 var utils = require("../lib/utils");
 
+var mochaAsync = fn => {
+  return done => {
+    fn.call().then(done, err => {
+      done(err);
+    });
+  };
+};
+
 describe("Utils", function() {
   describe("greetings", function() {
     it("Says Hello World", function() {
@@ -40,4 +48,14 @@ describe("Utils", function() {
     //   assert.equal(utils.makeHeading(), "");
     // });
   });
+
+  describe("fetchQuote", function() {
+    it(
+      "returns a nice msg",
+      mochaAsync(async () => {
+        const msg = await utils.fetchQuote();
+        assert.equal(msg, "Hey there bud");
+      })
+    );
+  });
 });