1 files changed, 55 insertions, 0 deletions
diff --git a/spec/engines/sql/unit/primitives/attribute_spec.rb b/spec/engines/sql/unit/primitives/attribute_spec.rb
new file mode 100644
index 0000000000..c467d902ad
--- /dev/null
+++ b/spec/engines/sql/unit/primitives/attribute_spec.rb
@@ -0,0 +1,55 @@
+require 'spec_helper'
+
+module Arel
+  describe Attribute do
+    before do
+      @relation = Table.new(:users)
+      @attribute = @relation[:id]
+    end
+
+    describe '#column' do
+      it "returns the corresponding column in the relation" do
+        @attribute.column.should == @relation.column_for(@attribute)
+      end
+    end
+
+    describe '#to_sql' do
+      describe 'for a simple attribute' do
+        it "manufactures sql with an alias" do
+          sql = @attribute.to_sql
+
+          adapter_is :mysql do
+            sql.should be_like(%Q{`users`.`id`})
+          end
+
+          adapter_is :oracle do
+            sql.should be_like(%Q{"USERS"."ID"})
+          end
+
+          adapter_is_not :mysql, :oracle do
+            sql.should be_like(%Q{"users"."id"})
+          end
+        end
+      end
+
+      describe 'for an inexistent attribute' do
+        it "manufactures sql" do
+          sql = @relation[:does_not_exist].to_sql
+
+          adapter_is :mysql do
+            sql.should be_like(%Q{`users`.`does_not_exist`})
+          end
+
+          adapter_is :oracle do
+            sql.should be_like(%Q{"USERS"."DOEST_NOT_EXIST"})
+          end
+
+          adapter_is_not :mysql, :oracle do
+            sql.should be_like(%Q{"users"."does_not_exist"})
+          end
+        end
+      end
+
+    end
+  end
+end