On Fri, Mar 01, 2019 at 11:37:19AM +0100, Cornelia Huck wrote: > On Wed, 20 Feb 2019 19:57:40 -0500 > Cleber Rosa <[email protected]> wrote: > > > A test can, optionally, be tagged for one or many architectures. If a > > test has been tagged for a single architecture, there's a high chance > > that the test won't run on other architectures. This changes the > > default order of choosing a default target architecture to use based > > on the 'arch' tag value first. > > > > The precedence order is for choosing a QEMU binary to use for a test > > is now: > > > > * qemu_bin parameter > > * arch parameter > > * arch tag value (for example, x86_64 if ":avocado: tags=arch:x86_64 > > is used) > > > > This means that if one runs: > > > > $ avocado run -p qemu_bin=/usr/bin/qemu-system-x86_64 test.py > > > > No arch parameter or tag will influence the selection of the QEMU > > target binary. If one runs: > > > > $ avocado run -p arch=ppc64 test.py > > > > The target binary selection mechanism will attempt to find a binary > > such as "ppc64-softmmu/qemu-system-ppc64". And finally, if one runs > > a test that is tagged (in its docstring) with "arch:aarch64": > > > > $ avocado run aarch64.py > > > > The target binary selection mechanism will attempt to find a binary > > such as "aarch64-softmmu/qemu-system-aarch64". > > > > At this time, no provision is made to cancel the execution of tests if > > the arch parameter given (manually) does not match the test "arch" > > tag, but it may be a useful default behavior to be added in the > > future. > > Would it be useful as well to cancel a test if the passed-in qemu_bin > parameter clashed with the tagged architecture? >
It would... in fact, a much older version of this proposal did that. I'm waiting for the most basic things to get in, before adding yet another "special" behavior. Thanks for the review and suggestion. - Cleber. > > > > Signed-off-by: Cleber Rosa <[email protected]> > > --- > > docs/devel/testing.rst | 4 +++- > > tests/acceptance/avocado_qemu/__init__.py | 7 ++++++- > > 2 files changed, 9 insertions(+), 2 deletions(-) > > > > diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst > > index 6035db1b44..87bcf8ef43 100644 > > --- a/docs/devel/testing.rst > > +++ b/docs/devel/testing.rst > > @@ -702,7 +702,9 @@ A test may, for instance, use the same value when > > selecting the > > architecture of a kernel or disk image to boot a VM with. > > > > The ``arch`` attribute will be set to the test parameter of the same > > -name, and if one is not given explicitly, it will be set to ``None``. > > +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``. > > > > qemu_bin > > ~~~~~~~~ > > diff --git a/tests/acceptance/avocado_qemu/__init__.py > > b/tests/acceptance/avocado_qemu/__init__.py > > index f580582602..9e98d113cb 100644 > > --- a/tests/acceptance/avocado_qemu/__init__.py > > +++ b/tests/acceptance/avocado_qemu/__init__.py > > @@ -53,7 +53,12 @@ def pick_default_qemu_bin(arch=None): > > class Test(avocado.Test): > > def setUp(self): > > self.vm = None > > - self.arch = self.params.get('arch') > > + arches = self.tags.get('arch', []) > > + if len(arches) == 1: > > + arch = arches.pop() > > + else: > > + arch = None > > + self.arch = self.params.get('arch', default=arch) > > default_qemu_bin = pick_default_qemu_bin(arch=self.arch) > > self.qemu_bin = self.params.get('qemu_bin', > > default=default_qemu_bin) > > Reviewed-by: Cornelia Huck <[email protected]>
