Enable promise long stack trace when testing or debugging

lib/utils/promise.js

@@ -1,6 +1,11 @@
 var Q = require('q');
 var Immutable = require('immutable');
 
+// Debugging for long stack traces
+if (global.__DEV__ || process.env.DEBUG) {
+    Q.longStackSupport = true;
+}
+
 /**
     Reduce an array to a promise
 

package.json

@@ -98,6 +98,9 @@
   ],
   "jest": {
     "automock": false,
-    "setupTestFrameworkScriptFile": "<rootDir>/jest/customMatchers.js"
+    "setupTestFrameworkScriptFile": "<rootDir>/jest/customMatchers.js",
+    "globals": {
+      "__DEV__": true
+    }
   }
 }