Re: [PATCH v2 09/29] tests/acceptance: Use 'machine' tag to check if available in QEMU binary

[Liam Merwick <liam.merwick@oracle.com>]

On 29/01/2020 21:23, Philippe Mathieu-Daudé wrote:
> We already use the 'machine' tag in Avocado tests.
> If the requested machine is not available in the QEMU binary,
> the tests will be cancelled (skipped):
> 
>    $ python -m avocado --show=app run tests/acceptance/x86_cpu_model_versions.py
>     ...
>     (04/11) CascadelakeArchCapabilities.test_4_1: CANCEL: Test expects machine 'pc-i440fx-4.1' which is missing from QEMU binary (0.10 s)
>     (05/11) CascadelakeArchCapabilities.test_4_0: CANCEL: Test expects machine 'pc-i440fx-4.0' which is missing from QEMU binary (0.11 s)
>     ...
> 
> Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
> ---
>   tests/acceptance/avocado_qemu/__init__.py | 13 ++++++++++---
>   1 file changed, 10 insertions(+), 3 deletions(-)
> 
> diff --git a/tests/acceptance/avocado_qemu/__init__.py b/tests/acceptance/avocado_qemu/__init__.py
> index e7d5affe24..53ec8512d1 100644
> --- a/tests/acceptance/avocado_qemu/__init__.py
> +++ b/tests/acceptance/avocado_qemu/__init__.py
> @@ -20,6 +20,7 @@ SRC_ROOT_DIR = os.path.join(os.path.dirname(__file__), '..', '..', '..')
>   sys.path.append(os.path.join(SRC_ROOT_DIR, 'python'))
>   
>   from qemu.binutils import binary_get_arch
> +from qemu.binutils import binary_get_machines
>   from qemu.binutils import binary_get_version
>   from qemu.machine import QEMUMachine
>   
> @@ -118,9 +119,6 @@ class Test(avocado.Test):
>           self.arch = self.params.get('arch',
>                                       default=self._get_unique_tag_val('arch'))
>   
> -        self.machine = self.params.get('machine',
> -                                       default=self._get_unique_tag_val('machine'))
> -
>           # Verify qemu_bin
>           default_qemu_bin = pick_default_qemu_bin(arch=self.arch)
>           self.qemu_bin = self.params.get('qemu_bin',
> @@ -151,6 +149,15 @@ class Test(avocado.Test):
>               if bin_arch != self.arch:
>                   self.cancel(fmt.format(self.arch, bin_arch))
>   
> +        # Verify machine
> +        self.machine = self.params.get('machine',
> +                                       default=self._get_unique_tag_val('machine'))
> +        logger.debug('machine: {}'.format(self.machine))
> +        if self.machine:
> +            fmt = "Test expects machine '{}' which is missing from QEMU binary"
> +            if self.machine not in binary_get_machines(self.qemu_bin):
> +                self.cancel(fmt.format(self.machine))
> +

Starting with this patch:

$ avocado run --filter-by-tags arch:x86_64 tests/acceptance
...
/boot_linux_console.py:BootLinuxConsole.test_x86_64_pc: CANCEL: Test 
expects machine 'pc' which is missing from QEMU binary (0.05 s)
...

$ x86_64-softmmu/qemu-system-x86_64 -machine help
Supported machines are:
microvm              microvm (i386)
pc                   Standard PC (i440FX + PIIX, 1996) (alias of 
pc-i440fx-5.0)
...

but checking via QMP, 'pc' (and 'q35') is listed as 'alias'
...
         {
             "hotpluggable-cpus": true,
             "name": "pc-i440fx-5.0",
             "numa-mem-supported": true,
             "default-cpu-type": "qemu64-x86_64-cpu",
             "is-default": true,
             "cpu-max": 255,
             "deprecated": false,
             "alias": "pc"
         },
...

Does 'alias' need to be checked by binary_get_machines() in Patch8 as 
well as 'name'?

Regards,
Liam