require File.join(File.dirname(__FILE__), '..', '..', '..', 'spec_helper')

module Arel
  describe In do
    before do
      @relation = Table.new(:users)
      @attribute = @relation[:id]
    end

    describe '#to_sql' do
      describe 'when relating to an array' do
        describe 'when the array\'s elements are the same type as the attribute' do
          before do
            @array = [1, 2, 3]
          end

          it 'manufactures sql with a comma separated list' do
            sql = In.new(@attribute, @array).to_sql

            adapter_is :mysql do
              sql.should be_like(%Q{`users`.`id` IN (1, 2, 3)})
            end

            adapter_is_not :mysql do
              sql.should be_like(%Q{"users"."id" IN (1, 2, 3)})
            end
          end
        end

        describe 'when the array\'s elements are not same type as the attribute' do
          before do
            @array = ['1-asdf', 2, 3]
          end

          it 'formats values in the array as the type of the attribute' do
            sql = In.new(@attribute, @array).to_sql

            adapter_is :mysql do
              sql.should be_like(%Q{`users`.`id` IN (1, 2, 3)})
            end

            adapter_is_not :mysql do
              sql.should be_like(%Q{"users"."id" IN (1, 2, 3)})
            end
          end
        end
      end

      describe 'when relating to a range' do
        before do
          @range = 1..2
        end

        it 'manufactures sql with a between' do
          sql = In.new(@attribute, @range).to_sql

          adapter_is :mysql do
            sql.should be_like(%Q{`users`.`id` BETWEEN 1 AND 2})
          end

          adapter_is_not :mysql do
            sql.should be_like(%Q{"users"."id" BETWEEN 1 AND 2})
          end
        end
      end

      describe 'when relating to a relation' do
        it 'manufactures sql with a subselect' do
          sql = In.new(@attribute, @relation).to_sql

          adapter_is :mysql do
            sql.should be_like(%Q{
              `users`.`id` IN (SELECT `users`.`id`, `users`.`name` FROM `users`)
            })
          end

          adapter_is_not :mysql do
            sql.should be_like(%Q{
              "users"."id" IN (SELECT "users"."id", "users"."name" FROM "users")
            })
          end
        end
      end
    end
  end
end