1 files changed, 28 insertions, 0 deletions
diff --git a/spec/engines/sql/unit/primitives/expression_spec.rb b/spec/engines/sql/unit/primitives/expression_spec.rb
new file mode 100644
index 0000000000..3b6a7314a2
--- /dev/null
+++ b/spec/engines/sql/unit/primitives/expression_spec.rb
@@ -0,0 +1,28 @@
+require 'spec_helper'
+
+module Arel
+  describe Expression do
+    before do
+      @relation = Table.new(:users)
+      @attribute = @relation[:id]
+    end
+
+    describe '#to_sql' do
+      it "manufactures sql with the expression and alias" do
+        sql = Count.new(@attribute, :alias).to_sql
+
+        adapter_is :mysql do
+          sql.should be_like(%Q{COUNT(`users`.`id`) AS `alias`})
+        end
+
+        adapter_is :oracle do
+          sql.should be_like(%Q{COUNT("USERS"."ID") AS "ALIAS"})
+        end
+
+        adapter_is_not :mysql, :oracle do
+          sql.should be_like(%Q{COUNT("users"."id") AS "alias"})
+        end
+      end
+    end
+  end
+end