From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([209.51.188.92]:35419) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1gte57-00040O-Jh for qemu-devel@nongnu.org; Tue, 12 Feb 2019 14:51:03 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1gte27-00071F-Uw for qemu-devel@nongnu.org; Tue, 12 Feb 2019 14:47:56 -0500 Received: from mx1.redhat.com ([209.132.183.28]:47078) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1gte27-0006u0-Mt for qemu-devel@nongnu.org; Tue, 12 Feb 2019 14:47:55 -0500 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.phx2.redhat.com [10.5.11.16]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 80309E6A67 for ; Tue, 12 Feb 2019 19:39:03 +0000 (UTC) From: Caio Carrara Date: Tue, 12 Feb 2019 17:38:54 -0200 Message-Id: <20190212193855.13223-2-ccarrara@redhat.com> In-Reply-To: <20190212193855.13223-1-ccarrara@redhat.com> References: <20190212193855.13223-1-ccarrara@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v3 1/2] tests.acceptance: adds multi vm capability for acceptance tests List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Caio Carrara This change adds the possibility to write acceptance tests with multi virtual machine support. It's done keeping the virtual machines objects stored in a test attribute (dictionary). This dictionary shouldn't be accessed directly but through the new method added `get_vm`. This new method accept a list of args (that will be added as virtual machine arguments) and an optional name argument. The name is the key that identify a single virtual machine along the test machines available. If a name without a machine is informed a new machine will be instantiated. The current usage of vm in tests will not be broken by this change since it keeps a property called vm in the base test class. This property only calls the new method `get_vm` with default parameters (no args and 'default' as machine name). Signed-off-by: Caio Carrara --- docs/devel/testing.rst | 41 ++++++++++++++++++++++- tests/acceptance/avocado_qemu/__init__.py | 25 +++++++++++--- 2 files changed, 61 insertions(+), 5 deletions(-) diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst index 135743a2bf..9f86569b30 100644 --- a/docs/devel/testing.rst +++ b/docs/devel/testing.rst @@ -634,7 +634,46 @@ instance, available at ``self.vm``. Because many te= sts will tweak the QEMU command line, launching the QEMUMachine (by using ``self.vm.launch(= )``) is left to the test writer. =20 -At test "tear down", ``avocado_qemu.Test`` handles the QEMUMachine +The base test class has also support for tests with more than one +QEMUMachine. The way to get machines is through the ``self.get_vm()`` +method which will return a QEMUMachine instance. The ``self.get_vm()`` +method accepts arguments that will be passed to the QEMUMachine creation +and also an optional `name` attribute so you can identify a specific +machine and get it more than once through the tests methods. A simple +and hypothetical example follows: + +.. code:: + + from avocado_qemu import Test + + + class MultipleMachines(Test): + """ + :avocado: enable + """ + def test_multiple_machines(self): + first_machine =3D self.get_vm() + second_machine =3D self.get_vm() + self.get_vm(name=3D'third_machine').launch() + + first_machine.launch() + second_machine.launch() + + first_res =3D first_machine.command( + 'human-monitor-command', + command_line=3D'info version') + + second_res =3D second_machine.command( + 'human-monitor-command', + command_line=3D'info version') + + third_res =3D self.get_vm(name=3D'third_machine').command( + 'human-monitor-command', + command_line=3D'info version') + + self.assertEquals(first_res, second_res, third_res) + +At test "tear down", ``avocado_qemu.Test`` handles all the QEMUMachines shutdown. =20 QEMUMachine diff --git a/tests/acceptance/avocado_qemu/__init__.py b/tests/acceptance= /avocado_qemu/__init__.py index 1e54fd5932..4c9e27feda 100644 --- a/tests/acceptance/avocado_qemu/__init__.py +++ b/tests/acceptance/avocado_qemu/__init__.py @@ -10,6 +10,7 @@ =20 import os import sys +import uuid =20 import avocado =20 @@ -42,13 +43,29 @@ def pick_default_qemu_bin(): =20 class Test(avocado.Test): def setUp(self): - self.vm =3D None + self._vms =3D {} self.qemu_bin =3D self.params.get('qemu_bin', default=3Dpick_default_qemu_bin(= )) if self.qemu_bin is None: self.cancel("No QEMU binary defined or found in the source t= ree") - self.vm =3D QEMUMachine(self.qemu_bin) + + def _new_vm(self, *args): + vm =3D QEMUMachine(self.qemu_bin) + if args: + vm.add_args(*args) + return vm + + @property + def vm(self): + return self.get_vm(name=3D'default') + + def get_vm(self, *args, name=3DNone): + if not name: + name =3D str(uuid.uuid4()) + if self._vms.get(name) is None: + self._vms[name] =3D self._new_vm(*args) + return self._vms[name] =20 def tearDown(self): - if self.vm is not None: - self.vm.shutdown() + for vm in self._vms.values(): + vm.shutdown() --=20 2.20.1