minitest-rerun-failed

Easy rerun of failed tests with minitest. Prints a list of failed tests and seed at the end of the test run to console and file. Re-run the failed tests with bin/rerun_failed_tests.

• Outputs all failed tests in short summary at end of test run.
  • To console and / or to file
  • Optionally includes line numbers
• Lists seed for re-running with same seed.
• Executable for re-running only failed tests

bundle add "minitest-rerun-failed" --group test

# installs executable bin/rerun_failed_tests
bundle binstubs minitest-rerun-failed

Use it like any Minitest::Reporters like such:

Minitest::Reporters.use! [
  Minitest::Reporters::ProgressReporter.new, # This is just my preferred reporter. Use the one(s) you like.
  Minitest::Reporters::FailedTestsReporter.new
]

Now failed tests and seed will be printed at the end of the test report.

If you have installed the binstub, you can rerun the failed tests with

bin/rerun_failed_tests

If you have not installed the binstub, you can rerun the failed tests with something like:

# Ruby:
ruby $(cat .minitest_failed_tests.txt)

# Rails:
bundle exec rails test $(cat .minitest_failed_tests.txt)

• include_line_numbers: Include line numbers in outputs. Defaults to true
• verbose: Output to stdout. Defaults to true
• file_output: Output to file. Defaults to true
• output_path: Path to place output files in. Defaults to '.'
  • Note: If you use the output_path option, you need to have ENV["MINITEST_FAILED_TESTS_REPORT_DIR"] set to use the executable

Line numbers were much easier to implement. If you find a good way to output test names instead, please open a PR with tests to add it as an option.

As for if line numbers change, the most likely outcome is that the whole file will simply be run instead of a single test. You can also use the option include_line_numbers: false to always output whole files for greater safety.

After checking out the repo, run bin/setup to install dependencies. Then, run rake test to run the tests. You can also run bin/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, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Bug reports and pull requests are welcome on GitHub at https://github.com/houen/minitest_rerun_failed.

The gem is available as open source under the terms of the MIT License.

https://stackoverflow.com/questions/19910533/minitest-rerun-only-failed-tests