How to test PR locally when recieve a Pull Request?
To fetch a remote PR into your local repo,
git fetch origin pull/$ID/head:$BRANCHNAME
where $ID is the pull request id and $BRANCHNAME is the name of the new branch that you want to create. Once you have created the branch, then simply
git checkout $BRANCHNAME
For instance, let’s imagine you want to checkout pull request #2 from the origin main branch:
git fetch origin pull/2/head:MASTER
See the official GitHub documentation for more.