CONTRIBUTING.md

Testing guide

Ensure the test passes before submitting a Pull Request,

Currently this gem supports ActiveRecord 4.1, 5.0, 6.0 and 7.0, ensure the test works across these ActiveRecord version.

1. Run bundle exec appraisal to generate gemfiles required to support different Active Record version
2. Run bundle exec appraisal rspec to run test across different Active Record version
3. Ensure all of them passes

Thanks!