Merge pull request #776 from lzhan/develop-perf

update app starting command so that args are dynamically added

tests/run.js

@@ -329,7 +329,15 @@ function runMojitoApp (cliOptions, basePath, path, port, params, callback) {
     }
     params = params || '';
     console.log('Starting ' + path + ' at port ' + port + ' with params ' + (params || 'empty'));
-    p = runCommand(basePath + '/' + path, cwd + "/../bin/mojito", ["start", port, "--context", params], function () {});
+    var cmdArgs = ['start'];
+    if (port) {
+        cmdArgs.push(port);
+    }
+    if (params) {
+        cmdArgs.push('--context');
+        cmdArgs.push(params);
+    }
+    p = runCommand(basePath + '/' + path, cwd + "/../bin/mojito", cmdArgs, function () {});
     pids.push(p.pid);
     pidNames[p.pid] = libpath.basename(path) + ':' + port + (params ? '?' + params : '');
     p.stdout.on('data', listener);