The ASCII art over the topology must be surrounded by .... and
is codeblock in ASCIIdoc. Since this is only used for ASCII arts
to help describe tests, border and background are white.
This can fail on two ways:
* Generate topology files
Unfortunatly the python-graphwiz has no way of detect faults
it just show 'Warning' on stderr, catch it and if != empty, exit 1
* Generate pdf
Here the default error level was FATAL, but for example a file
that is included does not exist it just show an error on stdout.
the error level is now INFO, it should always be silent.
The test specifcation is written in Asciidoc and is autogenerated from the content
in the test scripts.
Fonts imported from https://github.com/adobe-fonts/source-code-pro/
To generate the test script:
$ make test-spec
Mattias Walström