Re: [Qemu-devel] [PATCH V3 3/3] qemu-iotests: add tests for runtime fd passing via SCM rights

[Stefan Hajnoczi <stefanha@gmail.com>]

On Mon, Sep 02, 2013 at 05:18:13PM +0800, Wenchao Xia wrote:
> @@ -125,5 +125,39 @@ class TestFdSets(iotests.QMPTestCase):
>                  'No file descriptor supplied via SCM_RIGHTS')
>          self.vm.shutdown()
>  
> +#Add fd at runtime, there are two ways: monitor related or fdset related
> +class TestSCMFd(iotests.QMPTestCase):
> +    def setUp(self):
> +        self.vm = iotests.VM()
> +        qemu_img('create', '-f', iotests.imgfmt, image0, '128K')
> +        #Add a unused monitor, to verify it works fine when two minitor present
> +        self.vm.add_monitor_telnet("0",4445)

Sorry to be picky: please use the same whitespace style as the existing
code in these patches.

# Comments have a space after the hash
function(args, have, space)

> +        self.vm.launch()
> +
> +    def tearDown(self):
> +        self.vm.shutdown()
> +        os.remove(image0)
> +
> +    def _send_fd_by_SCM(self):
> +        ret = self.vm.send_fd_scm(image0)
> +        self.assertEqual(ret, 0, 'Failed to send fd with UNIX SCM')
> +
> +    def test_add_fd(self):
> +        self._send_fd_by_SCM()
> +        result = self.vm.qmp('add-fd', fdset_id=2, opaque='image0:r')
> +        self.assert_qmp(result, 'return/fdset-id', 2)
> +
> +    def test_getfd(self):
> +        self._send_fd_by_SCM()
> +        result = self.vm.qmp('getfd', fdname='image0:r')
> +        self.assert_qmp(result, 'return', {})
> +
> +    def test_closefd(self):
> +        self._send_fd_by_SCM()
> +        result = self.vm.qmp('getfd', fdname='image0:r')
> +        self.assert_qmp(result, 'return', {})
> +        result = self.vm.qmp('closefd', fdname='image0:r')
> +        self.assert_qmp(result, 'return', {})

It would be good to also check the error cases like the existing tests
do (e.g. getfd fdname=asdf -> error).