Re: [Qemu-devel] [PATCH v5 15/15] test: add image streaming test cases

[Stefan Hajnoczi]

On Tue, Jan 17, 2012 at 7:07 PM, Lucas Meneghel Rodrigues
<address@hidden> wrote:
> On 01/13/2012 02:49 PM, Stefan Hajnoczi wrote:
>>
>> Hi Lucas,
>> The Python script below verifies the image streaming feature.  It's
>> built on the standard library "unittest" module, as well as QEMU's
>> qmp.py module.  It spawns a qemu process and creates necessary disk
>> image files.  The tests themselves issue QMP commands and check their
>> result or wait for QMP events to be raised.
>>
>> I think this sort of test could be done with kvm-autotest but I don't
>> see much usage of cmd_qmp() in client/tests/kvm/tests/.  I'm curious
>> how you would approach this.  The high-level steps are:
>>
>> 1. Create a backing file.
>> 2. Create a test QED image file using the backing file.
>> 3. Issue "block_stream device=drive0" to the running VM.  This should
>> return no value.
>> 4. Wait for the BLOCK_JOB_COMPLETED QMP event and check its fields -
>> they must contain expected values.
>> 5. Ensure "query-block-job" does not show any active jobs anymore.
>> 6. Use qemu-io's map command to verify that the image stays compact
>> and isn't bloated with actual zero bytes (this is kind of unrelated to
>> the rest of the test).
>>
>> The other test cases share much of the same building blocks as
>> TestSingleDrive, so they are less interesting.
>>
>> Would it be possible to look at TestSingleDrive below and give a
>> kvm-autotest equivalent?
>
>
> Yes Stefan, sorry for the late reply. I was in FUDCon, therefore taking care
> of some Fedora related autotest stuff, but I'm putting on my todo list to
> create a KVM autotest equivalent of it.

Great, thank you!

Stefan