Adds Heroku deploy unit testing thanks to @bmatusiak (#1244)

* Add Heroku deploy unit testing thanks to @bmatusiak

1243.js is a reference to PR #1243

* Update 1243.js

Corrected some indentation, removed unnecessary require

test/bug/1243.js

@@ -0,0 +1,118 @@
+/**
+ * Heroku CLI REQUIRED!
+ * 
+ * NOTE: Does not work with npm installed heroku-cli
+ *  - Uninstall with: npm uninstall heroku -g
+ *  - Install Heroku with: curl https://cli-assets.heroku.com/install.sh | sh
+ * 
+ * 1. Login Heroku with: heroku login
+ * 2. After login you can run test
+ *    like: $ mocha test/bug/1243.js 
+ * 
+*/
+
+const expect = require('../expect');
+const path = require('path');
+const http = require("https");
+
+const outputData = false;
+
+function request(hostname, done){
+  http.get('https://'+hostname+'/',{
+    timeout: 1000 * 60 * 5
+  }, (res) => {
+    done(res.statusCode);
+  });
+}
+ 
+function spawn(cmd, done) {
+
+  const spawn = require('child_process').spawn;
+  let args = cmd.split(" ");
+  cmd = args.shift();
+
+  const s = spawn(cmd, args);
+  let stderrOUT = "";
+
+  s.stdout.on('data', (data) => {
+    saveData(data.toString());
+  });
+
+  s.stderr.on('data', (data) => {
+    saveData(data.toString());
+  });
+
+  function saveData(out){
+    stderrOUT += out.toString();
+    if(outputData) console.log(out.toString());
+  }
+
+  s.on('exit', (code) => {
+    done(stderrOUT);
+  });
+}
+  
+ function makeid(length) {
+   let result = '';
+   let characters = 'abcdefghijklmnopqrstuvwxyz';
+   let charactersLength = characters.length;
+   for (let i = 0; i < length; i++) {
+    result += characters.charAt(Math.floor(Math.random() *
+      charactersLength));
+   }
+   return result;
+ }
+ 
+ describe('Heroku deploy', function() {
+   const heroku_name = 'test-gun-' + makeid(5);
+   const dir_cwd = path.join(__dirname, "../..");
+
+  it('create herokuapp '+ heroku_name, function(done) {
+    this.timeout(15 * 1000);
+    let c = 'heroku create ' + heroku_name;
+    spawn(c, (stdout) => {
+      if (stdout.indexOf("done") > -1) {
+        done();
+    }
+    })
+  })
+ 
+  it('add git remote', function(done) {
+    this.timeout(15 * 1000);
+    let c = 'heroku git:remote -a '+ heroku_name;
+    spawn(c, (stdout) => {            
+      if (stdout.indexOf("set git") > -1) {
+          done();
+      }
+    })
+  })
+ 
+  it('git push heroku', function(done) {
+    this.timeout(1000 * 60 * 2); // 2 min
+    let c = 'git push heroku master --force';
+    spawn(c, (stdout) => {
+      if (stdout.indexOf("deployed to Heroku") > -1) {
+        done();
+      }
+    })
+  })  
+
+  it('fetch heroku app https', function(done) {
+    this.timeout(1000 * 60 * 5); // 2 min
+    request(heroku_name+".herokuapp.com",( statusCode )=>{
+      expect(statusCode).to.be(200);
+      done();
+    })
+  })  
+ 
+   it('destroy herokuapp ' + heroku_name, function(done) {
+    this.timeout(15 * 1000);
+
+    let c = 'heroku apps:destroy ' + heroku_name + ' --confirm=' + heroku_name;
+    spawn(c, (stdout) => {
+      if (stdout.indexOf("done") > -1) {
+        done();
+      }
+    })
+   })
+ })