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require 'spec_helper'
module Arel
describe Join do
before do
@relation1 = Table.new(:users)
@relation2 = Table.new(:photos)
@predicate = @relation1[:id].eq(@relation2[:user_id])
end
describe 'hashing' do
it 'implements hash equality' do
InnerJoin.new(@relation1, @relation2, @predicate) \
.should hash_the_same_as(InnerJoin.new(@relation1, @relation2, @predicate))
end
end
describe '#attributes' do
it 'combines the attributes of the two relations' do
join = InnerJoin.new(@relation1, @relation2, @predicate)
join.attributes.should ==
(@relation1.attributes + @relation2.attributes).collect { |a| a.bind(join) }
end
end
end
end
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