[Avocado-devel] Multiplex and avocado-vt

[Olav Philipp Henschel]

I've just noticed the parameter "test", which is passed to the method 
"run" in avocado-vt is an instance of class VirtTest.
So there's no need for that function that I've written. I just need to 
use the command you mentioned replacing "self" with "test".

sleep_length = test.avocado_params.get('sleep_length', default=1)

On 20-11-2015 11:24, Olav Philipp Henschel wrote:
> I believe the syntax you've given is for an avocado-virt test, which 
> inherits from the class VirtTest, right?
> The way I use them, avocado-vt tests don't have a class, they are 
> defined just by a "run" method.
> Based on the code you pointed to, in VirtTest __init__, I've written a 
> simple function to get the avocado params:
>
> from avocado.core import multiplexer
> def get_avocado_params(params):
>     avocado_params_raw = params.get('avocado_params', None)
>     if avocado_params_raw is not None:
>         params_list, mux_path = avocado_params_raw[0], 
> avocado_params_raw[1]
>     else:
>         params_list, mux_path = [], []
>     return multiplexer.AvocadoParams(params_list, "", "", mux_path, {})
>
> This way, I've been able to use them in an avocado-vt test like this:
>
> avocado_params = get_avocado_params(params)
> param = avocado_params.get("param_name")
>
> If there's a simpler way, please tell me.
>
> I'm eager to move to avocado-virt, it seems much nicer than 
> avocado-vt, but we need the unattended_install test, which I believe 
> is not yet supported.
> I might even give a try in porting it eventually.
>
>
> Thank you for helping me with this,
> Olav
>
>
> On 19-11-2015 19:42, Cleber Rosa wrote:
>> Hi Olav,
>>
>> Avocado-vt tests, by default, do not use the parameters from the 
>> multiplex. By default, is parameters come from the precursor of the 
>> multiplexer (known as the cartesian config file).
>>
>> But, Avocado actually sends the parameters over, and there's a way to 
>> actually use them from within avocado-vt tests. The syntax (from 
>> within a test) is:
>>
>>     sleep_length = self.avocado_params.get('sleep_length', default=1)
>>
>> The parameter 'sleep_length' is a parameter that should come from the 
>> multiplexer.
>>
>> About Avocado-virt: this is where a more native (and pleasant) 
>> experience should be found. Unfortunately, it's still far from the 
>> same level of features and tests as Avocado-vt. But, Avocado-virt 
>> should receive most of our development energy from now on.
>>
>> If you feel that Avocado-virt better suits your needs, great! Let's 
>> work together on that!
>>
>> BTW, a few pointers on Avocado-vt + multiplexer:
>>
>>   - 
>> https://github.com/avocado-framework/avocado-vt/blob/master/avocado/core/plugins/vt.py#L254
>>   - 
>> https://github.com/avocado-framework/avocado-vt/blob/master/avocado/core/plugins/vt.py#L321
>>
>>
>> Thanks,
>> CR.
>>
>> ----- Original Message -----
>>> From: "Olav Philipp Henschel" <olavph at linux.vnet.ibm.com>
>>> To: avocado-devel at redhat.com
>>> Sent: Thursday, November 19, 2015 4:09:06 PM
>>> Subject: [Avocado-devel] Multiplex and avocado-vt
>>>
>>> Now that I got multiplexing to work, I've tried to use it with
>>> avocado-vt and didn't get the expected results.
>>> It prints the "Multiplex tree representation" and executes the tests
>>> once for each variant, but the tests didn't get the param values.
>>> I've noticed the params in new tests are an attribute of the Test 
>>> class,
>>> which is not used in avocado-vt.
>>>
>>> Is it even possible to multiplex avocado-vt tests?
>>> If not, what's the current status on avocado-virt? Can we port other
>>> distros as guests already?
>>>
>>> Any information is appreciated,
>>> Olav P. Henschel
>>>
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>>> Avocado-devel at redhat.com
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>
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