Page Comparison

Prerequisites: A least 2 different files are are present in the collection. 

...

1. Put a new file to a single pillar
2. Request listing of all files.
   
   1. Verify that the pillar containing the new file lists this file, and that the rest of the pillars only lists the original set of files.
3. Delete the new file.
   
   1. Verify that the all the pillars only list the original files.

Bad arguments

1. Try getting all file ids from a non-existing collection
   
   1. Should fail with an appropriate error
2. Try getting the file ids from a non-existing pillar
   1. Should fail with an appropriate error