> I'll make the connection object a parameter rather than have the method set up the connection itself Parameter (Dependency) Injection. > I might make the co

> I'll make the connection object a parameter rather than have the method set up the connection itself Parameter (Dependency) Injection. > I might make the connection object a parameter to the constructor Constructor (Dependency) Injection. > construct it in a helper method that I can override for testing purposes. Not DI. http://martinfowler.com/articles/injection.html http://martinfowler.com/articles/injection.html Edit: For languages such as Java and C#, wiring up these objects is quite a pain. For duck typed languages such as Python and Ruby, it isn't that big of a pain. So we just do it. Just because you don't have an IoC framework doesn't mean you aren't practicing DI :)