How to pull a pull request quickly locally

Before I merge a pull request I want to quickly pull the request locally and run tests and test out a few stuffs. I don't want to hit the gihub merge pull request yet.

I thought pulley would help http://ejohn.org/blog/pulley/ . But I am getting error

$ node pulley.js 76

node.js:116
        throw e; // process.nextTick error, or 'error' event on first tick
        ^

Is there any other tool that will help me quickly pull a "pull request"?

Click the (i) on the left side of the "merge pull request" bar, it will give you the commands you need.

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Why not just use the following?

git remote add -f <test_repo_name> <test_repo_url>
git checkout -b <branch> <test_repo_name>/master
...test as needed
...merge if you like it

Taken from the official github page (in July 2013, but this may change):

Step 1: Check out a new branch to test the changes — run this from your project directory

git checkout -b otherrepo-develop develop

Step 2: Bring in otherrepos's (where the commits comes from) changes and test

git pull git://github.com/otherrepoauthor/otherrepo.git develop

Step 3: AFTER SUCCESSFUL TESTING ! Merge the changes and update the server

git checkout develop
git merge otherrepo-develop
git push origin develop

Just a quick idea, why not create a local branch, then perform the pull on the original (remotely tracked) branch?