Use mongodb in memory for unit tests

api/config/config.js

@@ -15,9 +15,14 @@ module.exports = {
   },
 
   test: {
-    port: 3001,
     db: 'cc-test',
-    env: 'test',
+    dredd: {
+      env: 'dreddTest',
+      port: 3001
     },
-
+    unit: {
+      env: 'unitTest',
+      port: 3010
+    }
+  }
 };

api/dredd.yml

@@ -2,7 +2,7 @@ dry-run: null
 hookfiles: null
 language: nodejs
 sandbox: false
-server: npm run start-test
+server: npm run start-api-test
 server-wait: 3
 init: false
 custom: {}

api/package.json

@@ -11,7 +11,8 @@
     "eslint": "$(npm bin)/eslint",
     "lint": "eslint '**/*.js'",
     "test": "mocha --require ./test/config/spec_helper.js",
-    "start-test": "DEBUG='cc:*' NODE_ENV=test node server.js",
+    "start-test": "DEBUG='cc:*' NODE_ENV=unitTest node server.js",
+    "start-api-test": "DEBUG='cc:*' NODE_ENV=dreddTest node server.js",
     "api:compile-docs": "$(npm bin)/hercule apib/dev-doc.apib -o apib/documentation.apib",
     "api:publish-docs": "$(npm bin)/aglio --theme-variables slate -i ./apib/documentation.apib -o ../public/api-docs.html",
     "api:test-docs": "npm run api:docs && ./apib/dredd/populate-data.sh && $(npm bin)/dredd",
@@ -48,6 +49,7 @@
     "eslint-config-google": "^0.9.1",
     "hercule": "^4.1.1",
     "mocha": "^3.5.3",
+    "mongodb-memory-server": "^1.7.3",
     "nodemon": "^1.14.12"
   }
 }

api/server.js

@@ -73,7 +73,7 @@ app.use(urls.signatures, signatureRouter);
 if (process.env.NODE_ENV === config.dev.env) {
   // development logging
   app.use(requestLogger('dev'));
-} else if (process.env.NODE_ENV !== config.test.env) {
+} else if (process.env.NODE_ENV !== config.test.dredd.env && process.env.NODE_ENV !== config.test.unit.env) {
   // production logging, apache style
   app.use(requestLogger(':date[clf] :method :url :response-time ms :status'));
 }
@@ -102,7 +102,45 @@ app.use((req, res) => {
 errorResponseWare(app);
 
 // Start the server
-if (process.env.NODE_ENV !== config.test.env) {
+
+switch (process.env.NODE_ENV) {
+  case config.test.dredd.env: {
+    const mongoosePromise = mongoose.connect(config.database.uri + config.test.db);
+    mongoosePromise.then((db) => {
+      app.listen(config.test.dredd.port);
+      logger('Listening on port ' + config.test.dredd.port);
+    });
+    break;
+  }
+  case config.test.unit.env: {
+    const MongodbMemoryServer = require('mongodb-memory-server').default;
+    const mongoServer = new MongodbMemoryServer();
+    mongoose.Promise = Promise;
+    mongoServer.getConnectionString().then((mongoUri) => {
+      const mongooseOpts = { // options for mongoose 4.11.3 and above
+        autoReconnect: true,
+        reconnectTries: Number.MAX_VALUE,
+        reconnectInterval: 1000,
+        useMongoClient: true, // remove this line if you use mongoose 5 and above
+      };
+
+      mongoose.connect(mongoUri, mongooseOpts);
+
+      mongoose.connection.on('error', (e) => {
+        if (e.message.code === 'ETIMEDOUT') {
+          console.log(e);
+          mongoose.connect(mongoUri, mongooseOpts);
+        }
+        console.log(e);
+      });
+
+      mongoose.connection.once('open', () => {
+        console.log(`MongoDB successfully connected to ${mongoUri}`);
+      });
+    });
+    break;
+  }
+  default: {
     const mongoosePromise = mongoose.connect(config.database.uri + config.database.db);
     mongoosePromise.then((db) => {
       app.listen(config.port, (err) => {
@@ -115,12 +153,8 @@ if (process.env.NODE_ENV !== config.test.env) {
         }
       });
     });
-} else {
-  const mongoosePromise = mongoose.connect(config.database.uri + config.test.db);
-  mongoosePromise.then((db) => {
-    app.listen(config.test.port);
-    logger('Listening on port ' + config.test.port);
-  });
+    break;
+  }
 }
 
 module.exports = app;

api/test/config/spec_helper.js

@@ -1,3 +1,3 @@
 const config = require('../../config/config');
 
-process.env.NODE_ENV = config.test.env;
+process.env.NODE_ENV = config.test.unit.env;