require 'spec_helper' module Arel describe Table do before do @relation = Table.new(:users) end describe '[]' do describe 'when given a', Symbol do it "manufactures an attribute if the symbol names an attribute within the relation" do column = @relation[:id] #.should == Attributes::Integer.new(@relation, :id) end end #describe 'when given an', Attribute do # it "returns the attribute if the attribute is within the relation" do # @relation[@relation[:id]].should == @relation[:id] # end # it "returns nil if the attribtue is not within the relation" do # another_relation = Table.new(:photos) # @relation[another_relation[:id]].should be_nil # end #end #describe 'when given an', Expression do # before do # @expression = @relation[:id].count # end # it "returns the Expression if the Expression is within the relation" do # @relation[@expression].should be_nil # end #end end end end