The goal is to be a series of matchers, that bring minitest-matchers into a state where it is as useful as shoulda-matchers, instead of having to build own matchers custom.

For simple validations see valid_attribute.

• Add to your Gemfile
• Include the helpers in your TestCase class, like below:

class ActiveSupport::TestCase
  include MinitestMatcherLibrary::TestHelpers
end

Date Validations:

Assert that only valid dates passed are accepted.

object = Object.new
assert_must validate_datetime(:start_date), object

Relationships

Assert that the relationship for the given class is setup.

assert_must belong_to(:yolo), Swag
assert_must have_many(:fomos), Swag
assert_must have_one(:yolo), Swag
assert_must have_and_belong_to_many(:yolos), Swag

This gem is very much a work in progress. Needs major cleanup, and tests. Also feel free to add additional useful matchers into this library that help you in your project.