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require 'helper'
module Arel
module Visitors
describe 'the join_sql visitor' do
before do
@visitor = ToSql.new Table.engine.connection
@visitor.extend(JoinSql)
end
it 'should visit string join' do
sql = @visitor.accept Nodes::StringJoin.new(Nodes.build_quoted('omg'))
sql.must_be_like "'omg'"
end
describe 'inner join' do
it 'should visit left if left is a join' do
t = Table.new :users
sm = t.select_manager
sm.join(t).on(t[:id]).join(t).on(t[:id])
sm.join_sql.must_be_like %{
INNER JOIN "users" ON "users"."id"
INNER JOIN "users" ON "users"."id"
}
end
end
describe 'FULL outer join' do
it 'should visit left if left is a join' do
t = Table.new :users
sm = t.select_manager
sm.join(t, Nodes::FullOuterJoin).on(t[:id]).join(
t, Nodes::FullOuterJoin).on(t[:id])
sm.join_sql.must_be_like %{
FULL OUTER JOIN "users" ON "users"."id"
FULL OUTER JOIN "users" ON "users"."id"
}
end
end
describe 'outer join' do
it 'should visit left if left is a join' do
t = Table.new :users
sm = t.select_manager
sm.join(t, Nodes::OuterJoin).on(t[:id]).join(
t, Nodes::OuterJoin).on(t[:id])
sm.join_sql.must_be_like %{
LEFT OUTER JOIN "users" ON "users"."id"
LEFT OUTER JOIN "users" ON "users"."id"
}
end
end
describe 'right outer join' do
it 'should visit left if left is a join' do
t = Table.new :users
sm = t.select_manager
sm.join(t, Nodes::RightOuterJoin).on(t[:id]).join(
t, Nodes::RightOuterJoin).on(t[:id])
sm.join_sql.must_be_like %{
RIGHT OUTER JOIN "users" ON "users"."id"
RIGHT OUTER JOIN "users" ON "users"."id"
}
end
end
end
end
end
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