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Re: [Qemu-devel] [PATCH 05/18] Acceptance tests: introduce arch paramete


From: Cleber Rosa
Subject: Re: [Qemu-devel] [PATCH 05/18] Acceptance tests: introduce arch parameter and attribute
Date: Thu, 31 Jan 2019 14:01:32 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0


On 1/31/19 8:55 AM, Wainer dos Santos Moschetta wrote:
> Hi Cleber,
> 
> On 01/17/2019 04:56 PM, Cleber Rosa wrote:
>> It's useful to define the architecture that should be used in
>> situations such as:
>>   * the intended target of the QEMU binary to be used on tests
>>   * the architecture of code to be run within the QEMU binary, such
>>     as a kernel image or a full blown guest OS image
>>
>> This commit introduces both a test parameter and a test instance
>> attribute, that will contain such a value.
>>
>> Now, when the "arch" test parameter is given, it will influence the
>> selection of the default QEMU binary, if one is not given explicitly
>> by means of the "qemu_img" parameter.
>>
>> Signed-off-by: Cleber Rosa <address@hidden>
>> ---
>>   docs/devel/testing.rst                    | 18 ++++++++++++++++++
>>   tests/acceptance/avocado_qemu/__init__.py | 13 ++++++++++---
>>   2 files changed, 28 insertions(+), 3 deletions(-)
>>
>> diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst
>> index 44c9b3ae74..60a16c5834 100644
>> --- a/docs/devel/testing.rst
>> +++ b/docs/devel/testing.rst
>> @@ -689,6 +689,17 @@ vm
>>   A QEMUMachine instance, initially configured according to the given
>>   ``qemu_bin`` parameter.
>>   +arch
>> +~~~~
>> +
>> +The architecture that will be used on a number of different
>> +scenarios.  For instance, when a QEMU binary is not explicitly given,
>> +the one selected will depend on this attribute.
>> +
>> +The ``arch`` attribute will be set to the test parameter of the same
>> +name, and if one is not given explicitly, it will default to the
>> +system architecture (as given by ``uname``).
> 
> Unless I'm missing something, the arch attribute will be None if I don't
> pass the arch parameter nor set the arch tag.
> 

I think you're not missing anything, but I was.  Thanks for catching that.

- Cleber.

> ------
> address@hidden qemu]# cat tests/acceptance/arch.py
> from avocado_qemu import Test
> 
> class Arch(Test):
>     """
>     :avocado: enable
>     """
>     def test(self):
>         self.assertEqual(self.arch, "x86_64")
> address@hidden qemu]# ./tests/venv/bin/avocado run tests/acceptance/arch.py
> JOB ID     : 032aabb8ec2364944d0e29df3b61931b42f4587c
> JOB LOG    : /root/avocado/job-results/job-2019-01-31T08.42-032aabb/job.log
>  (1/1) tests/acceptance/arch.py:Arch.test: FAIL: None != 'x86_64' (0.03 s)
> RESULTS    : PASS 0 | ERROR 0 | FAIL 1 | SKIP 0 | WARN 0 | INTERRUPT 0 |
> CANCEL 0
> JOB TIME   : 0.20 s
> address@hidden qemu]# ./tests/venv/bin/avocado run -p arch=x86_64
> tests/acceptance/arch.py
> JOB ID     : 1913a73510cab4b6b118bd7e94e2746011368628
> JOB LOG    : /root/avocado/job-results/job-2019-01-31T08.42-1913a73/job.log
>  (1/1) tests/acceptance/arch.py:Arch.test: PASS (0.01 s)
> RESULTS    : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 |
> CANCEL 0
> JOB TIME   : 0.19 s
> address@hidden qemu]# cat tests/acceptance/arch_tag.py
> from avocado_qemu import Test
> 
> class Arch(Test):
>     """
>     :avocado: enable
>     :avocado: tags=arch:x86_64
>     """
>     def test(self):
>         self.assertEqual(self.arch, "x86_64")
> address@hidden qemu]# ./tests/venv/bin/avocado run 
> tests/acceptance/arch_tag.py
> JOB ID     : bc85be065586b8e9cf371489e1801489910e41b0
> JOB LOG    : /root/avocado/job-results/job-2019-01-31T08.43-bc85be0/job.log
>  (1/1) tests/acceptance/arch_tag.py:Arch.test: PASS (0.01 s)
> RESULTS    : PASS 1 | ERROR 0 | FAIL 0 | SKIP 0 | WARN 0 | INTERRUPT 0 |
> CANCEL 0
> JOB TIME   : 0.19 s
> ------
> 
> - Wainer
> 
>> +
>>   qemu_bin
>>   ~~~~~~~~
>>   @@ -711,6 +722,13 @@ like the following:
>>       PARAMS (key=qemu_bin, path=*,
>> default=x86_64-softmmu/qemu-system-x86_64) =>
>> 'x86_64-softmmu/qemu-system-x86_64
>>   +arch
>> +~~~~
>> +
>> +The architecture that will be used on a number of different scenarios.
>> +This parameter has a direct relation with the ``arch`` attribute.  If
>> +not given, it will default to None.
>> +
>>   qemu_bin
>>   ~~~~~~~~
>>   diff --git a/tests/acceptance/avocado_qemu/__init__.py
>> b/tests/acceptance/avocado_qemu/__init__.py
>> index d8d5b48dac..7a38851753 100644
>> --- a/tests/acceptance/avocado_qemu/__init__.py
>> +++ b/tests/acceptance/avocado_qemu/__init__.py
>> @@ -23,16 +23,22 @@ def is_readable_executable_file(path):
>>       return os.path.isfile(path) and os.access(path, os.R_OK | os.X_OK)
>>     -def pick_default_qemu_bin():
>> +def pick_default_qemu_bin(arch=None):
>>       """
>>       Picks the path of a QEMU binary, starting either in the current
>> working
>>       directory or in the source tree root directory.
>>   +    :param arch: the arch to use when looking for a QEMU binary
>> (the target
>> +                 will match the arch given).  If None (the default) arch
>> +                 will be the current host system arch (as given by
>> +                 :func:`os.uname`).
>> +    :type arch: str
>>       :returns: the path to the default QEMU binary or None if one
>> could not
>>                 be found
>>       :rtype: str or None
>>       """
>> -    arch = os.uname()[4]
>> +    if arch is None:
>> +        arch = os.uname()[4]
>>       qemu_bin_relative_path = os.path.join("%s-softmmu" % arch,
>>                                             "qemu-system-%s" % arch)
>>       if is_readable_executable_file(qemu_bin_relative_path):
>> @@ -47,8 +53,9 @@ def pick_default_qemu_bin():
>>   class Test(avocado.Test):
>>       def setUp(self):
>>           self.vm = None
>> +        self.arch = self.params.get('arch')
>>           self.qemu_bin = self.params.get('qemu_bin',
>> -                                        default=pick_default_qemu_bin())
>> +                                       
>> default=pick_default_qemu_bin(self.arch))
>>           if self.qemu_bin is None:
>>               self.cancel("No QEMU binary defined or found in the
>> source tree")
>>           self.vm = QEMUMachine(self.qemu_bin)
> 

-- 
Cleber Rosa
[ Sr Software Engineer - Virtualization Team - Red Hat ]
[ Avocado Test Framework - avocado-framework.github.io ]
[  7ABB 96EB 8B46 B94D 5E0F  E9BB 657E 8D33 A5F2 09F3  ]



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