use the @cloudron/superagent module

src/test/server-test.js

@@ -10,7 +10,7 @@ const constants = require('../constants.js'),
     expect = require('expect.js'),
     safe = require('safetydance'),
     server = require('../server.js'),
-    superagent = require('../superagent.js');
+    superagent = require('@cloudron/superagent');
 
 const SERVER_URL = 'http://localhost:' + constants.PORT;
 

src/test/superagent-test.js

@@ -5,7 +5,7 @@
 
 const expect = require('expect.js'),
     safe = require('safetydance'),
-    superagent = require('../superagent.js');
+    superagent = require('@cloudron/superagent');
 
 describe('Superagent', function () {
     it('can get URL', async function () {