path: root/activerecord/test/cases/adapters/postgresql/statement_pool_test.rb

require 'cases/helper'

module ActiveRecord
  module ConnectionAdapters
    class PostgreSQLAdapter < AbstractAdapter
      class InactivePGconn
        def query(*args)
          raise PGError
        end

        def status
          PGconn::CONNECTION_BAD
        end
      end

      class StatementPoolTest < ActiveRecord::TestCase
        def test_cache_is_per_pid
          return skip('must support fork') unless Process.respond_to?(:fork)

          cache = StatementPool.new nil, 10
          cache['foo'] = 'bar'
          assert_equal 'bar', cache['foo']

          pid = fork {
            lookup = cache['foo'];
            exit!(!lookup)
          }

          Process.waitpid pid
          assert $?.success?, 'process should exit successfully'
        end

        def test_dealloc_does_not_raise_on_inactive_connection
          cache = StatementPool.new InactivePGconn.new, 10
          cache['foo'] = 'bar'
          assert_nothing_raised { cache.clear }
        end
      end
    end
  end
end