Forg/test/test_helper.rb

ENV["RAILS_ENV"] ||= "test"
require_relative "../config/environment"
require "rails/test_help"

module ActiveSupport
  class TestCase
    # Run tests in parallel with specified workers
    parallelize(workers: :number_of_processors)

    # Setup all fixtures in test/fixtures/*.yml for all tests in alphabetical order.
    fixtures :all

    def assert_must_exist(record, field)
      assert record.valid?
      record.attributes = { "#{field}": nil }
      assert_not record.valid?
      assert_includes record.errors[field.to_sym], "can't be blank"
      assert_raises { record.save(validate: false) }
    end
  end
end