Problem: I can´t test "/send" mapping in the MainControllerTest

Due to the difficult way the view and the controller was implemented, I wasn´t able to test it because I don´t have the knowledges to do it. I think it´s better changing the implementation in the future because it can be done in a better way in order to facilitate the tests.

Start by reading MainControllerTest and the current view and controller implementation around the "/send" mapping. Determine how the mapping can be exercised in the test, and consider the reported implementation change complete when MainControllerTest can test "/send" reliably.

Written by the indexing model from the issue text.