diff --git a/docs/devel/testing.rst b/docs/devel/testing.rst index 3ce171829d..60f897d915 100644 --- a/docs/devel/testing.rst +++ b/docs/devel/testing.rst @@ -633,7 +633,46 @@ instance, available at ``self.vm``. Because many tests will tweak the QEMU command line, launching the QEMUMachine (by using ``self.vm.launch()``) is left to the test writer. -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 = self.get_vm() + second_machine = self.get_vm() + self.get_vm(name='third_machine').launch() + + first_machine.launch() + second_machine.launch() + + first_res = first_machine.command( + 'human-monitor-command', + command_line='info version') + + second_res = second_machine.command( + 'human-monitor-command', + command_line='info version') + + third_res = self.get_vm(name='third_machine').command( + 'human-monitor-command', + command_line='info version') + + self.assertEquals(first_res, second_res, third_res) + +At test "tear down", ``avocado_qemu.Test`` handles all the QEMUMachines shutdown. QEMUMachine diff --git a/tests/acceptance/avocado_qemu/__init__.py b/tests/acceptance/avocado_qemu/__init__.py index 28bfb8e9d3..a66ec72daa 100644 --- a/tests/acceptance/avocado_qemu/__init__.py +++ b/tests/acceptance/avocado_qemu/__init__.py @@ -10,6 +10,7 @@ import os import sys +import uuid import avocado @@ -41,13 +42,29 @@ def pick_default_qemu_bin(): class Test(avocado.Test): def setUp(self): - self.vm = None + self._vms = {} self.qemu_bin = self.params.get('qemu_bin', default=pick_default_qemu_bin()) if self.qemu_bin is None: self.cancel("No QEMU binary defined or found in the source tree") - self.vm = QEMUMachine(self.qemu_bin) + + def _new_vm(self, *args): + vm = QEMUMachine(self.qemu_bin) + if args: + vm.add_args(*args) + return vm + + @property + def vm(self): + return self.get_vm(name='default') + + def get_vm(self, *args, name=None): + if not name: + name = str(uuid.uuid4()) + if self._vms.get(name) is None: + self._vms[name] = self._new_vm(*args) + return self._vms[name] def tearDown(self): - if self.vm is not None: - self.vm.shutdown() + for vm in self._vms.values(): + vm.shutdown()