add DragonFlyBSD support (#904)

- Mostly based on FreeBSD, the main exception is that
  `find_devs_with_on_freebsd` does not work.
- Since we cannot get the CDROM or the partition labels,
  `find_devs_with_on_dragonflybsd()` has a more naive approach and
  returns all the block devices.

1 files changed, 18 insertions, 0 deletions

diff --git a/tests/unittests/test_util.py b/tests/unittests/test_util.py
index e5292001..2290cab7 100644
--- a/tests/unittests/test_util.py
+++ b/tests/unittests/test_util.py
@@ -999,4 +999,22 @@ class TestFindDevs:
         devlist = util.find_devs_with_netbsd(criteria=criteria)
         assert devlist == expected_devlist
 
+    @pytest.mark.parametrize(
+        'criteria,expected_devlist', (
+            (None, ['/dev/vbd0', '/dev/cd0', '/dev/acd0']),
+            ('TYPE=iso9660', ['/dev/cd0', '/dev/acd0']),
+            ('TYPE=vfat', ['/dev/vbd0']),
+            ('LABEL_FATBOOT=A_LABEL',  # lp: #1841466
+             ['/dev/vbd0', '/dev/cd0', '/dev/acd0']),
+        )
+    )
+    @mock.patch("cloudinit.subp.subp")
+    def test_find_devs_with_dragonflybsd(self, m_subp, criteria,
+                                         expected_devlist):
+        m_subp.return_value = (
+            'md2 md1 cd0 vbd0 acd0 vn3 vn2 vn1 vn0 md0', ''
+        )
+        devlist = util.find_devs_with_dragonflybsd(criteria=criteria)
+        assert devlist == expected_devlist
+
 # vi: ts=4 expandtab