Re: [PATCH 4/8] tests/acceptance/migration.py: cancel test if migration is not supported

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 4/15/21 11:51 PM, Cleber Rosa wrote:
> FIXME: check if there's a way to query migration support before
> actually requesting migration.
> 
> Some targets/machines contain devices that do not support migration.
> Let's acknowledge that and cancel the test as early as possible.
> 
> Signed-off-by: Cleber Rosa <crosa@redhat.com>
> ---
>  tests/acceptance/migration.py | 6 +++++-
>  1 file changed, 5 insertions(+), 1 deletion(-)
> 
> diff --git a/tests/acceptance/migration.py b/tests/acceptance/migration.py
> index 792639cb69..25ee55f36a 100644
> --- a/tests/acceptance/migration.py
> +++ b/tests/acceptance/migration.py
> @@ -53,7 +53,11 @@ def do_migrate(self, dest_uri, src_uri=None):
>          source_vm = self.get_vm()
>          source_vm.add_args('-nodefaults')
>          source_vm.launch()
> -        source_vm.qmp('migrate', uri=src_uri)
> +        response = source_vm.qmp('migrate', uri=src_uri)
> +        if 'error' in response:
> +            if 'desc' in response['error']:
> +                msg = response['error']['desc']
> +            self.cancel('Migration does not seem to be supported: %s' % msg)
>          self.assert_migration(source_vm, dest_vm)

It would be better to have this done as a generic check_requisites()
method. First because we could reuse it (also at the class level),
second because we could account the time spent for checking separately
from the time spent for the actual testing.