iotests: Add virtio-scsi device helper

Seems that it comes up enough.

Signed-off-by: John Snow <jsnow@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-id: 20190709232550.10724-17-jsnow@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>

5 files changed, 10 insertions, 18 deletions

diff --git a/tests/qemu-iotests/040 b/tests/qemu-iotests/040
index aa0b1847e3..6db9abf8e6 100755
--- a/tests/qemu-iotests/040
+++ b/tests/qemu-iotests/040
@@ -85,11 +85,7 @@ class TestSingleDrive(ImageCommitTestCase):
         qemu_io('-f', 'raw', '-c', 'write -P 0xab 0 524288', backing_img)
         qemu_io('-f', iotests.imgfmt, '-c', 'write -P 0xef 524288 524288', mid_img)
         self.vm = iotests.VM().add_drive(test_img, "node-name=top,backing.node-name=mid,backing.backing.node-name=base", interface="none")
-        if iotests.qemu_default_machine == 's390-ccw-virtio':
-            self.vm.add_device("virtio-scsi-ccw")
-        else:
-            self.vm.add_device("virtio-scsi-pci")
-
+        self.vm.add_device(iotests.get_virtio_scsi_device())
         self.vm.add_device("scsi-hd,id=scsi0,drive=drive0")
         self.vm.launch()
         self.has_quit = False
diff --git a/tests/qemu-iotests/093 b/tests/qemu-iotests/093
index 4b2cac1d0c..3c4f5173ce 100755
--- a/tests/qemu-iotests/093
+++ b/tests/qemu-iotests/093
@@ -367,10 +367,8 @@ class ThrottleTestGroupNames(iotests.QMPTestCase):
 class ThrottleTestRemovableMedia(iotests.QMPTestCase):
     def setUp(self):
         self.vm = iotests.VM()
-        if iotests.qemu_default_machine == 's390-ccw-virtio':
-            self.vm.add_device("virtio-scsi-ccw,id=virtio-scsi")
-        else:
-            self.vm.add_device("virtio-scsi-pci,id=virtio-scsi")
+        self.vm.add_device("{},id=virtio-scsi".format(
+            iotests.get_virtio_scsi_device()))
         self.vm.launch()
 
     def tearDown(self):
diff --git a/tests/qemu-iotests/139 b/tests/qemu-iotests/139
index 933b45121a..2176ea51ba 100755
--- a/tests/qemu-iotests/139
+++ b/tests/qemu-iotests/139
@@ -35,11 +35,8 @@ class TestBlockdevDel(iotests.QMPTestCase):
     def setUp(self):
         iotests.qemu_img('create', '-f', iotests.imgfmt, base_img, '1M')
         self.vm = iotests.VM()
-        if iotests.qemu_default_machine == 's390-ccw-virtio':
-            self.vm.add_device("virtio-scsi-ccw,id=virtio-scsi")
-        else:
-            self.vm.add_device("virtio-scsi-pci,id=virtio-scsi")
-
+        self.vm.add_device("{},id=virtio-scsi".format(
+            iotests.get_virtio_scsi_device()))
         self.vm.launch()
 
     def tearDown(self):
diff --git a/tests/qemu-iotests/238 b/tests/qemu-iotests/238
index 08bc7e6b4b..e5ac2b2ff8 100755
--- a/tests/qemu-iotests/238
+++ b/tests/qemu-iotests/238
@@ -23,10 +23,7 @@ import os
 import iotests
 from iotests import log
 
-if iotests.qemu_default_machine == 's390-ccw-virtio':
-    virtio_scsi_device = 'virtio-scsi-ccw'
-else:
-    virtio_scsi_device = 'virtio-scsi-pci'
+virtio_scsi_device = iotests.get_virtio_scsi_device()
 
 vm = iotests.VM()
 vm.launch()
diff --git a/tests/qemu-iotests/iotests.py b/tests/qemu-iotests/iotests.py
index 385dbad16a..84438e837c 100644
--- a/tests/qemu-iotests/iotests.py
+++ b/tests/qemu-iotests/iotests.py
@@ -164,6 +164,10 @@ def qemu_io_silent(*args):
                          (-exitcode, ' '.join(args)))
     return exitcode
 
+def get_virtio_scsi_device():
+    if qemu_default_machine == 's390-ccw-virtio':
+        return 'virtio-scsi-ccw'
+    return 'virtio-scsi-pci'
 
 class QemuIoInteractive:
     def __init__(self, *args):