Watch file changes with nodemon and run rspec for the test file or specified line number test. Use spring with rspec optionally.

watch_files.md

Watch files with Nodemon and RSpec

Watch file changes with nodemon and run rspec for the test file or specified line number test. Use spring with rspec optionally.

We need to install Nodemon

$ npm install -g nodemon

Add this in your default bash:

• ~/.bash_profile
• ~/.zshrc

How to use it?

Run spec for user_spec.rb when file changed.

$ wr spec/models/user_spec.rb

Run spec for user_spec.rb:80 (only spec in line 80) when file changed.

$ wr spec/models/user_spec.rb 80

Use wsr if you want to run spring rspec to speed up. For instance:

$ wsr spec/models/user_spec.rb 80

function run_after_save {
  prefix=$1
  file=$2
  line=$3
  if [ -z "$line" ]; then
    nodemon -x "$prefix $file" -w "$file"
  else
    nodemon -x "$prefix $file:$line" -w "$file"
  fi
}

Create alias to make files easy ;)

alias wsr='run_after_save "bundle exec spring rspec"'
alias wr='run_after_save "bundle exec rspec"'