config for merging master to test branch

Hello:

Here's my workflow...

testing directory (test branch)
    [set origin to server repository]
    git pull
    git branch test
    git checkout test
    [edit settings files]
    git commit ...

working directory (master branch)
    [set origin to server repository]
    [make changes]
    git commit ...
    git push origin master

Now, here's the question. I want to go back into the testing directory and do a "git pull" and have the changes from master automatically merged into my test branch in one step, without having to do an explicit set of checkouts and merges. I get the impression there are configuration settings that allow such to be done. Is my impression correct? If so, what are the explicit configuration commands, please? Or is there some command other than "pull" I should be using to do this?

Thanks,

--Dan