Adds ability to skip reconfiguration between tests

Author: flovilmart

spec/helper.js

@@ -116,14 +116,31 @@ if (process.env.PARSE_SERVER_TEST_CACHE === 'redis') {
 const openConnections = {};
 // Set up a default API server for testing with default configuration.
 let server;
+let reconfigured = false;
 
 // Allows testing specific configurations of Parse Server
-const reconfigureServer = changedConfiguration => {
-  return new Promise((resolve, reject) => {
+const reconfigureServer = (changedConfiguration, isBeforeEach) => {
+  // A new configuration was passed by a test
+  if (changedConfiguration) {
+    reconfigured = true;
+  }
+  // Trying to reconfigure while the spec didn't change the setup
+  // Do nothing...
+  if (isBeforeEach && !reconfigured) {
+    return;
+  }
+
+  if (isBeforeEach) {
+    reconfigured = false;
+  }
+  return new Promise((_resolve, reject) => {
+    const resolve = function(result)  {
+      _resolve(result);
+    }
     if (server) {
       return server.close(() => {
         server = undefined;
-        reconfigureServer(changedConfiguration).then(resolve, reject);
+        reconfigureServer(changedConfiguration, isBeforeEach).then(resolve, reject);
       });
     }
     try {
@@ -182,7 +199,7 @@ beforeEach(done => {
         return;
       }
     })
-    .then(reconfigureServer)
+    .then(() => reconfigureServer(undefined, true))
     .then(() => {
       Parse.initialize('test', 'test', 'test');
       Parse.serverURL = 'http://localhost:' + port + '/1';