testing circle install firefox

test/frontend/driver.js

@@ -0,0 +1,22 @@
+var webdriver = require('selenium-webdriver'),
+    By = webdriver.By,
+    until = webdriver.until;
+
+var driver = new webdriver.Builder()
+  .forBrowser('firefox')
+  .build();
+
+driver.get('file:///' + __dirname + '/frontend.test.html');
+driver.wait(until.titleIs('Mocha Tests'), 1000);
+driver.wait(until.titleMatches(/^[0-1]$/), 10000);
+
+driver.getTitle().then(title => {
+  driver.quit().then(() => {
+    if (title === "0") {
+      process.exit(0);
+    } else {
+      throw new Error(`Frontend tests are failing. ` + 
+                `Please open the frontend.test.html file in a browser.`);
+    }
+  })
+})

test/frontend/frontend.test.html

@@ -16,7 +16,12 @@
   <script>
     mocha.checkLeaks();
     mocha.globals(['jQuery']);
-    mocha.run();
+    mocha.run(function(err) {
+      document.title = err;
+    });
+  </script>
+
+  <script>
   </script>
   </body>
 </html>