Update tests to assert against translation strings

test/helpers/api.helper.js

@@ -7,6 +7,9 @@ import {
 import {MongoClient as mongo} from 'mongodb';
 import {v4 as generateUUID} from 'uuid';
 import superagent from 'superagent';
+import i18n from '../../common/script/src/i18n';
+require('coffee-script');
+i18n.translations = require('../../website/src/i18n.js').translations;
 
 const API_TEST_SERVER_PORT = 3003;
 
@@ -22,6 +25,22 @@ export function requester(user={}) {
   }
 };
 
+// Use this to verify error messages returned by the server
+// That way, if the translated string changes, the test
+// will not break. NOTE: it checks agains errors with string as well.
+export function translate(key, variables) {
+  const STRING_ERROR_MSG = 'Error processing the string. Please see Help > Report a Bug.';
+  const STRING_DOES_NOT_EXIST_MSG = /^String '.*' not found.$/;
+
+  let translatedString = i18n.t(key, variables);
+
+  expect(translatedString).to.not.be.empty;
+  expect(translatedString).to.not.eql(STRING_ERROR_MSG);
+  expect(translatedString).to.not.match(STRING_DOES_NOT_EXIST_MSG);
+
+  return translatedString;
+};
+
 // Creates a new user and returns it
 // If you need the user to have specific requirements,
 // such as a balance > 0, just pass in the adjustment