Revisited the persistence layer.

Simplified schema to focus on user and node.
Now possible to have sqlite via ODBC and/or mysql support, and select using configuration file.
Updated demo example.

library/persistence/implementation/mysql/tests/util/abstract_db_test.e

@@ -1,7 +1,7 @@
 note
 	description: "Summary description for {ABSTRACT_DB_TEST}."
-	date: "$Date$"
-	revision: "$Revision$"
+	date: "$Date: 2015-01-27 19:15:02 +0100 (mar., 27 janv. 2015) $"
+	revision: "$Revision: 96542 $"
 
 class
 	ABSTRACT_DB_TEST
@@ -14,4 +14,35 @@ feature -- Database connection
 		once
 			create Result.login_with_schema ("cms_dev", "root", "")
 		end
+
+	storage: CMS_STORAGE_MYSQL
+		once
+			create Result.make (connection)
+		end
+
+feature {NONE} -- Fixture Factory: Users
+
+	default_user: CMS_USER
+		do
+			Result := custom_user ("test", "password", "test@test.com")
+		end
+
+	custom_user (a_name, a_password: READABLE_STRING_32; a_email: READABLE_STRING_8): CMS_USER
+		do
+			create Result.make (a_name)
+			Result.set_password (a_password)
+			Result.set_email (a_email)
+		end
+
+feature {NONE} -- Fixture Factories: Nodes
+
+	default_node: CMS_NODE
+		do
+			Result := custom_node ("Default content", "default summary", "Default")
+		end
+
+	custom_node (a_content, a_summary, a_title: READABLE_STRING_32): CMS_NODE
+		do
+			create Result.make (a_content, a_summary, a_title)
+		end
 end