Automated test on PDF or SVG output

[Paolo Prete]

Hello,

I need to execute the following automated test:
given a .ly file, I would like to check if the produced output is what I
expect it to be.
Then I was thinking about a way to compare the output (doesn't matter if
PDF or SVG) with an expected image of the same file type, and check if the
two images are the same.
There are several ways to do that: for example a Python script with a
graphic library such as Pillow, which compares two images.
However, I wonder if this test task is already done somewhere in LP with
some embedded or suggested tool or procedure. Any hint?

Thanks!
Paolo