Make database cleansing reliable

+ fix duplicate error
+ fix destroyed topology error

Author: roschaefer

features/env/database.js

@@ -1,21 +1,26 @@
 const {Before, AfterAll, BeforeAll} = require('cucumber');
 const mongoose = require('mongoose');
 const sinon = require('sinon');
+const userSchema = require('../../human-connection-api/server/models/users.model.js');
 
-let db;
+mongoose.connect("mongodb://localhost/hc_api_test");
+const db = mongoose.connection;
+
+let app = sinon.stub();
+sinon.stub(app, 'get').callsFake(function() {
+  return mongoose;
+});
+
+let User;
+db.on('error', console.error.bind(console, 'connection error:'));
+db.once('open', function() {
+  User = userSchema(app); // initialize User model
 
-BeforeAll(function (callback) {
-  mongoose.connect("mongodb://localhost/hc_api_test");
-  db = mongoose.connection;
-  db.on('error', console.error.bind(console, 'connection error:'));
-  db.once('open', function() {
-    callback();
-  });
 });
 
 // Asynchronous Promise
 Before(function () {
-  db.dropDatabase()
+  User.remove();
 });
 
 AfterAll(function() {

features/env/getModel.js

@@ -1,7 +1,5 @@
 const { Given, When, Then } = require('cucumber');
-const userSchema = require('../../human-connection-api/server/models/users.model.js');
-const getModel = require('../env/getModel.js');
-const User = getModel(userSchema);
+const mongoose = require('mongoose');
 
 Given('the Human Connection API is up and running', function () {
   // Just documentation
@@ -12,9 +10,9 @@ Given("there is a 3rd party application running, e.g. 'Democracy'", function ()
 });
 
 Given('there is an organization in Human Connection with these credentials:', function (dataTable) {
-  // Write code here that turns the phrase above into concrete actions
   const table = dataTable.hashes()
   dataTable.hashes().forEach((row) => {
+    const User = mongoose.model('users');
     const aUser = new User(row);
     aUser.save(function (err, user) {
       if(err) throw(err);