The output from running the test script is:
```
'rootdir/bar'
[13/Apr/2022 09:20:36] "POST /app/file-test/ HTTP/1.1" 200 2
'rootdir/bar'
[13/Apr/2022 09:20:36] "POST /app/file-test/ HTTP/1.1" 200 2
'rootdir/foo%2fbar'
[13/Apr/2022 09:20:36] "POST /app/file-test/ HTTP/1.1" 200 2
'rootdir/%2e%2e%2fbar'
[13/Apr/2022 09:20:36] "POST /app/file-test/ HTTP/1.1" 200 2
'rootdir/foo%c0%afbar'
[13/Apr/2022 09:20:36] "POST /app/file-test/ HTTP/1.1" 200 2
```
I didn't add a `.py` extension, so it wasn't extracted, since we don't
actually care about what we model in that file.
This required quite some changes in the expected output. I think it's much more
clear what the selected nodes are now 👍 (but it was a bit boring work to fix
this up)
