Turbux is designed to speed up your TDD cycle by using a single key mapping to run the most relevant test based on the current file in vim. It uses tmux's scriptability to send commands to a chosen pane in your tmux session, by way of tslime.vim.

https://github.com/jgdavey/vim-turbux

http://joshuadavey.com/post/15619414829/faster-tdd-feedback-with-tmux-tslime-vim-and