[ovirt-devel] Automation CI for imgbased

[Fabian Deutsch]

On Tue, Dec 22, 2015 at 6:14 PM, Nir Soffer <nsoffer at redhat.com> wrote:
> Intersting, we are working on this:
> https://github.com/oVirt/vdsm/blob/master/tests/storagefakelib.py
>
> But it fakes vdsm module, not the underlying lvm commands.

Interesting as well.

Looks like our lvm requirements are not as fine grained.

- fabian

> בתאריך 22 בדצמ׳ 2015 6:50 אחה״צ,‏ "Fabian Deutsch" <fdeutsch at redhat.com>
> כתב:
>
>> On Tue, Dec 22, 2015 at 5:35 PM, Nir Soffer <nsoffer at redhat.com> wrote:
>> > What is fakelvm?
>> >
>> > We are interested in this for storage tests.
>>
>> It's actually a small class which mimics  teh LVM behavior.
>>
>> It was written from scratch - and is still rough. But the idea works out.
>> It is intended to be used with python-mock.
>>
>> The module is here:
>>
>> https://gerrit.ovirt.org/gitweb?p=imgbased.git;a=blob;f=tests/fakelvm.py;hb=HEAD
>>
>> One consumer of this is:
>>
>> https://gerrit.ovirt.org/gitweb?p=imgbased.git;a=blob;f=tests/testSanity.py;hb=HEAD
>>
>> The biggest gap is to document it and get the API straight.
>>
>> I.e. currently I tried to follow the following pattern:
>>
>> lv = LV()  # To instantiate a LV
>> lv = VG().create(…)  # To create a mocked VG
>>
>> - fabian
>>
>> > בתאריך 22 בדצמ׳ 2015 6:24 אחה״צ,‏ "Fabian Deutsch" <fdeutsch at redhat.com>
>> > כתב:
>> >>
>> >> Hey,
>> >>
>> >> imgbased [1] is the layer management component in Node Next, leveraging
>> >> lvm.
>> >> In the last days I've added unittests for this component.
>> >>
>> >> After Ryan ramped up the jobs, I spent some time to fix the unit tests.
>> >> Previously imgbased was tested inside VMs to run the unit tests.
>> >> Now I moved to a fake LVM which is modeling the real LVm behavior, to
>> >> run the unit tests.
>> >>
>> >> This is _much_ quicker, and much easier to handle.
>> >>
>> >> To try it yourself, just clone [1] and run
>> >>
>> >> $ make check
>> >>
>> >> - fabian
>> >>
>> >>
>> >> --
>> >> [1] https://gerrit.ovirt.org/gitweb?p=imgbased.git
>> >>
>> >> --
>> >> Fabian Deutsch <fdeutsch at redhat.com>
>> >> RHEV Hypervisor
>> >> Red Hat
>> >> _______________________________________________
>> >> Devel mailing list
>> >> Devel at ovirt.org
>> >> http://lists.ovirt.org/mailman/listinfo/devel
>>
>>
>>
>> --
>> Fabian Deutsch <fdeutsch at redhat.com>
>> RHEV Hypervisor
>> Red Hat



-- 
Fabian Deutsch <fdeutsch at redhat.com>
RHEV Hypervisor
Red Hat