add locking support for postgres

1 files changed, 17 insertions, 0 deletions

diff --git a/spec/visitors/postgres_spec.rb b/spec/visitors/postgres_spec.rb
new file mode 100644
index 0000000000..b5174a4c04
--- /dev/null
+++ b/spec/visitors/postgres_spec.rb
@@ -0,0 +1,17 @@
+require 'spec_helper'
+
+module Arel
+  module Visitors
+    describe 'the postgres visitor' do
+      before do
+        @visitor = PostgreSQL.new Table.engine
+      end
+
+      it 'should produce a lock value' do
+        @visitor.accept(Nodes::Lock.new).should be_like %{
+          FOR UPDATE
+        }
+      end
+    end
+  end
+end