JoinSql visitor will visit left side if left is a join

1 files changed, 35 insertions, 0 deletions

diff --git a/spec/arel/visitors/join_sql_spec.rb b/spec/arel/visitors/join_sql_spec.rb
new file mode 100644
index 0000000000..9064dae852
--- /dev/null
+++ b/spec/arel/visitors/join_sql_spec.rb
@@ -0,0 +1,35 @@
+require 'spec_helper'
+
+module Arel
+  module Visitors
+    describe 'the join_sql visitor' do
+      before do
+        @visitor = JoinSql.new Table.engine
+      end
+
+      describe 'inner join' do
+        it 'should visit left if left is a join' do
+          t    = Table.new :users
+          join = Nodes::InnerJoin.new t, t, Nodes::On.new(t[:id])
+          j2   = Nodes::InnerJoin.new join, t, Nodes::On.new(t[:id])
+          @visitor.accept(j2).should be_like %{
+            INNER JOIN "users" ON "users"."id"
+            INNER 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
+          join = Nodes::OuterJoin.new t, t, Nodes::On.new(t[:id])
+          j2   = Nodes::OuterJoin.new join, t, Nodes::On.new(t[:id])
+          @visitor.accept(j2).should be_like %{
+            LEFT OUTER JOIN "users" ON "users"."id"
+            LEFT OUTER JOIN "users" ON "users"."id"
+          }
+        end
+      end
+    end
+  end
+end