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It has something to do with running the a TestUnit file i.e. it switches out of vim and runs the file.
:map ,t :w\|:!ruby test_spec.rb<cr>
Can someone break this command out with some explanation?
saves the file
Let’s you input multiple commands, e.g.
:foo|:bar, is the same as:foo, hitting return,:bar. The\is to escape it in the map.Runs the shell command specified, in this case
ruby test_spec.rb.Carriage return (e.g. the enter or return key).
So when you hit ,t, it saves your file, and runs the command
ruby test_spec.rb.