Test files that have changed since a given commit.

• Git

Add this line to your application's Gemfile:

gem 'test_changes', require: false

And then execute:

$ bundle

Or install it yourself as:

$ gem install test_changes

Add a .test-changes.yml configuration file to your repo. Example:

---
rspec:
  finding_patterns:
    ^lib/(.+)\.rb: spec/\1_spec.rb
    ^spec/(.+)_spec.rb: spec/\1_spec.rb
  exclude:
    - spec/fixtures/**/*
rubocop:
  finding_patterns:
    ^(.+)\.rb: \1.rb

At the root of the file, we have the commands for running the tests. Examples: rspec, zeus rspec, rubocop.

These are the options under each command:

• finding_patterns - If the name of a changed file matches the regular expression, test_changes will test the file's matching tests. Can accept an array of tests:

  rspec:
    finding_patterns:
      ^lib/test_changes\.rb:
      - spec/test_changes_spec.rb
      - spec/test_changes/*_spec.rb

  The values can also be glob patterns.

• exclude - Patterns of files that should be excluded from the run.

test-changes -c [commit] -- [test_tool_arguments]

• test_tool_arguments - Arguments that can be passed to the test tool.

• commit - Test change from this commit. Defaults to HEAD.

See test-changes -h for more options.

Examples:

test-changes
test-changes -c master
test-changes -r rspec -c HEAD^ -- --format=documentation

• Ruby 3.1.2
• Git 2.34.1

After checking out the repo, run bundle install to install dependencies. Then, run bundle console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release to create a git tag for the version, push git commits and tags, and push the .gem file to rubygems.org.

IMPORTANT: Please use RuboCop and Overcommit when submitting pull requests.

1. Fork it ( https://github.com/gsmendoza/test_changes/fork )
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create a new Pull Request