ceph-volume: add two unit tests

This adds two unit tests in order to cover `test_get_mapper_from_lv_path()`
and `test_get_lv_path_from_mapper()` functions from `api.lvm`

Signed-off-by: Guillaume Abrioux <gabrioux@ibm.com>
(cherry picked from commit a485883f62df388ed19bd91a996ec543c0a9a30f)

diff --git a/src/ceph-volume/ceph_volume/tests/api/test_lvm.py b/src/ceph-volume/ceph_volume/tests/api/test_lvm.py
index 0bfc34075c31c41b8569f5be57d357e4b906f044..1c62c329cd1a718d3ab58e22a6361c107b73b50d 100644 (file)
--- a/src/ceph-volume/ceph_volume/tests/api/test_lvm.py
+++ b/src/ceph-volume/ceph_volume/tests/api/test_lvm.py
@@ -883,3 +883,15 @@ class TestGetSingleLV(object):
 
         assert isinstance(lv_, api.Volume)
         assert lv_.name == 'lv1'
+
+
+class TestHelpers:
+    def test_get_lv_path_from_mapper(self):
+        mapper = '/dev/mapper/ceph--c1a97e46--234c--46aa--a549--3ca1d1f356a9-osd--block--32e8e896--172e--4a38--a06a--3702598510ec'
+        lv_path = api.get_lv_path_from_mapper(mapper)
+        assert lv_path == '/dev/ceph-c1a97e46-234c-46aa-a549-3ca1d1f356a9/osd-block-32e8e896-172e-4a38-a06a-3702598510ec'
+
+    def test_get_mapper_from_lv_path(self):
+        lv_path = '/dev/ceph-c1a97e46-234c-46aa-a549-3ca1d1f356a9/osd-block-32e8e896-172e-4a38-a06a-3702598510ec'
+        mapper = api.get_mapper_from_lv_path(lv_path)
+        assert mapper == '/dev/mapper/ceph--c1a97e46--234c--46aa--a549--3ca1d1f356a9/osd--block--32e8e896--172e--4a38--a06a/3702598510ec'