Adds mongo e2e spec (#207)

* Adds mongo e2e spec

* Adds mongo connection string

* Constantize sql spec

* Use shared login function

* Remove comment

* Remove login lines from cassandra

* Adds frame return tyoe

* test updates

* format

* adds unique name

* remove trivial type annotation

.eslintrc.js

@@ -27,7 +27,7 @@ module.exports = {
       plugins: ["react"]
     },
     {
-      files: ["**/*.test.{ts,tsx}"],
+      files: ["**/*.{test,spec}.{ts,tsx}"],
       env: {
         jest: true
       },