Re: [PATCH 1/3] tests/acceptance: Automatic set -cpu to the test vm

[Cleber Rosa <crosa@redhat.com>]

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On Wed, Feb 24, 2021 at 06:26:52PM -0300, Wainer dos Santos Moschetta wrote:
> This introduces a new feature to the functional tests: automatic setting of
> the '-cpu VALUE' option to the created vm if the test is tagged with
> 'cpu:VALUE'. The 'cpu' property is made available to the test object as well.
> 
> For example, for a simple test as:
> 
>     def test(self):
>         """
>         :avocado: tags=cpu:host
>         """
>         self.assertEqual(self.cpu, "host")
>         self.vm.launch()
> 
> The resulted QEMU evocation will be like:
>

Maybe you meant "resulting" ?

>     qemu-system-x86_64 -display none -vga none -chardev socket,id=mon,path=/var/tmp/avo_qemu_sock_pdgzbgd_/qemu-1135557-monitor.sock -mon chardev=mon,mode=control -cpu host
> 
> Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
> ---
>  docs/devel/testing.rst                    | 8 ++++++++
>  tests/acceptance/avocado_qemu/__init__.py | 4 ++++
>  2 files changed, 12 insertions(+)
> 
> diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst
> index 00ce16de48..40478672c0 100644
> --- a/docs/devel/testing.rst
> +++ b/docs/devel/testing.rst
> @@ -844,6 +844,14 @@ name.  If one is not given explicitly, it will either be set to
>  ``None``, or, if the test is tagged with one (and only one)
>  ``:avocado: tags=arch:VALUE`` tag, it will be set to ``VALUE``.
>  
> +cpu
> +~~~
> +
> +If the test is tagged with one (and only one) ``:avocado: tags=cpu:VALUE`` tag
> +then the ``cpu`` attribute will be set to ``VALUE``, and the ``-cpu`` argument
> +will be set to all QEMUMachine instances created by the test. Otherwise the
> +attribute will be set to ``None``.
> +
>  machine
>  ~~~~~~~
>  
> diff --git a/tests/acceptance/avocado_qemu/__init__.py b/tests/acceptance/avocado_qemu/__init__.py
> index df167b142c..0f4649b173 100644
> --- a/tests/acceptance/avocado_qemu/__init__.py
> +++ b/tests/acceptance/avocado_qemu/__init__.py
> @@ -193,6 +193,8 @@ def setUp(self):
>          self.arch = self.params.get('arch',
>                                      default=self._get_unique_tag_val('arch'))
>  
> +        self.cpu = self._get_unique_tag_val('cpu')
> +
>          self.machine = self.params.get('machine',
>                                         default=self._get_unique_tag_val('machine'))
>  
> @@ -218,6 +220,8 @@ def get_vm(self, *args, name=None):
>              name = str(uuid.uuid4())
>          if self._vms.get(name) is None:
>              self._vms[name] = self._new_vm(*args)
> +            if self.cpu is not None:
> +                self._vms[name].add_args('-cpu', self.cpu)
>              if self.machine is not None:
>                  self._vms[name].set_machine(self.machine)
>          return self._vms[name]
> -- 
> 2.29.2
> 

Did you omit the support for the "cpu" parameter on purpose?  Unless
there's a good argument against it, I'd say we should try to keep
those tags/parameters/attributes consistently available.

Cheers,
- Cleber.

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