[libvirt] [PATCH 1/1] tests: xmconfigtest: Add test for os.cmdline

[Jim Fehlig]

On 05/21/2018 05:57 AM, Filip Alac wrote:
> Add test case for the os cmdline.
> Check if:
> 656151bf5dd299322dcf37d06d20534e667a1963
> work as expected.

Thanks for taking up Cole's suggestion! I had added it to my todo list.

To test the code you fixed in 656151bf, we need to check the following

1. no 'extra=' or 'root=' in xm.cfg
2. 'extra=' but no 'root=' in xm.cfg
3. 'root=' but no 'extra=' in xm.cfg
4. both 'root=' and 'extra=' in xm.cfg

Since all of the existing xmconfig tests have no 'extra=' or 'root=', we've got 
1 covered :-). We could be evil and test 2 by adding 'extra=' to an existing 
paravirt test, e.g. test-paravirt-vcpu. Perhaps less evil would be to add 
'extra=' to all the existing paravirt tests, along with <cmdline> in associated 
.xml file.

3 and 4 need handled a bit differently since the roundtrip xm.cfg to xml to 
xm.cfg tests will not pass when xm.cfg contains 'root='. The xm.cfg to xml 
conversion maps 'root=' to <cmdline>, but the reverse maps <cmdline> to 
'extra='. The easy solution is to only test the xm.cfg to xml conversion using 
the DO_TEST_FORMAT macro. E.g attached is a patch that tests xm.cfg to xml 
conversion of xm.cfg containing both 'extra=' and 'root='. We'd need a similar 
change for testing only 'root='.

Do you have time to tweak the patch to test all conditions and submit a V2? If 
not I'll get to it.

Regards,
Jim
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