Configure Vim Test to Work With Docker

Recently I started to work with Docker in a project, and I ever use vim-test to run test using vim, now to integrate in current docker workflow we need to configure vim-test.

For example to configure to run rspec test inside app:

let test#ruby#rspec#executable = 'docker-compose exec -e RAILS_ENV=test app rspec'

to run inside to already running app docker container.

It is very important to add -e RAILS_ENV=test to send envinroment variables and set test env inside the rails app.