sonic-pi

https://github.com/sonic-pi-net/sonic-pi

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Minitest::Assertions#assert_output

Fails if stdout or stderr do not output the expected results.
Pass in nil if you don't care about that streams output. Pass in
"" if you require it to be silent. Pass in a regexp if you want
to pattern match.

NOTE: this uses #capture_io, not #capture_subprocess_io.

See also: #assert_silent

Source | Google | Stack overflow

Edit

git clone [email protected]:sonic-pi-net/sonic-pi.git

cd sonic-pi

open app/server/ruby/vendor/minitest-5.18.1/lib/minitest/assertions.rb

Contribute

# Make a new branch

git checkout -b -your-name--update-docs-Minitest--Assertions-assert_output-for-pr

# Commit to git

git add app/server/ruby/vendor/minitest-5.18.1/lib/minitest/assertions.rbgit commit -m "better docs for Minitest::Assertions#assert_output"

# Open pull request

gem install hub # on a mac you can `brew install hub`

hub fork

git push <your name> -your-name--update-docs-Minitest--Assertions-assert_output-for-pr

hub pull-request

# Celebrate!