Write unittest for style method isInUse

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

Hi people,

There is a test can I can look to understand how to create a test with
macros?

I want to write a unittest to
https://bugs.freedesktop.org/show_bug.cgi?id=70807, so I just need a
code pointer to write this test.

Thanks since now!

Regards,
    Marcos
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
Comment: Using GnuPG with Thunderbird - http://www.enigmail.net/

iQEcBAEBAgAGBQJSzfOxAAoJEIqCNZtY966qK7cIAIbMcdMnjG/k/q3OlT0R2OqI
U+w7sfstZ9o9ar89A2CGL/4y+a0RwhH66E0ILqdyQKug3yC9cn+9CqDbCjoimWLu
+y6UgN9TaEbdtc9Txf4GPIAl3U9G8FZlHOn60NzJMBWp1ALL//BQEH71PhezLbs0
y1rbBj1hM1Qa6X0nnHnBRayhhZ34/Uv/GsdxUMAuvdvDP1kLxMI5Vub2Yuhrzkgs
PhfAjC5tpRhiaCWkkLh7TBlyZUvRLqLpPOVrIH29KQ+N4i7645d4GBn64OLJKYBH
9VF2fkS+wQhqReDI4ppZ8pLbnlmklpxBfgxj7S4IqwAtKOTOapIomWmAon+edm8=
=2PEG
-----END PGP SIGNATURE-----