schema_test.rb

require "cases/helper"
require 'models/post'
require 'models/comment'

module ActiveRecord
  module ConnectionAdapters
    class Mysql2SchemaTest < ActiveRecord::TestCase
      fixtures :posts

      def setup
        @connection = ActiveRecord::Base.connection
        db          = Post.connection_pool.spec.config[:database]
        table       = Post.table_name
        @db_name    = db

        @omgpost = Class.new(Post) do
          set_table_name "#{db}.#{table}"
          def self.name; 'Post'; end
        end
      end

      def test_schema
        assert @omgpost.find(:first)
      end

      def test_table_exists?
        name = @omgpost.table_name
        assert @connection.table_exists?(name), "#{name} table should exist"
      end

      def test_table_exists_wrong_schema
        assert(!@connection.table_exists?("#{@db_name}.zomg"), "table should not exist")
      end
    end
  end
end