Class ActiveRecord::PredicateBuilderTest < ActiveRecord::TestCase

# File activerecord/test/cases/relation/predicate_builder_test.rb, line 6
def test_registering_new_handlers
  Topic.predicate_builder.register_handler(Regexp, proc do |column, value|
    Arel::Nodes::InfixOperation.new('~', column, Arel.sql(value.source))
  end)

  assert_match %r{["`]topics["`]\.["`]title["`] ~ rails}i, Topic.where(title: /rails/).to_sql
ensure
  Topic.reset_column_information
end