Add some regression tests for search a file.

This adds some regression tests for finding a file and the infrastructure
for uploading files and making sure they are up to date.

One search for a file currently doesn't work so it is commented out with
its associated bug number.

Change-Id: I5a5f33df500b2b5e73cb67d61f1d93fc69785aaf
Merge "Add some regression tests for search a file."