Default to empty strings if FS type or FS version are undefined.

Author: Katherine Black

houndigrade/cli.py

@@ -587,9 +587,9 @@ def is_lvm(partitions):
         partition_info[partition] = properties
 
     for partition, properties in partition_info.items():
-        if properties.get("ID_FS_TYPE") == "LVM2_member":
+        if properties.get("ID_FS_TYPE", "") == "LVM2_member":
             lvm_partitions.add(partition)
-        if "LVM2" in properties.get("ID_FS_VERSION"):
+        if "LVM2" in properties.get("ID_FS_VERSION", ""):
             lvm_partitions.add(partition)
 
     return lvm_partitions

houndigrade/tests/test_cli.py

@@ -1029,9 +1029,10 @@ def test_rhel_found_via_release_file_on_lvm(
 PTUUID=98a48d3a
 PTTYPE=dos
 """
-        mock_udevadm.return_value = """ID_FS_TYPE=LVM2_member
-ID_FS_VERSION=LVM2 001
-"""
+        mock_udevadm_output1 = """ID_FS_VERSION=LVM2 001\n"""
+        mock_udevadm_output2 = """ID_FS_TYPE=LVM2_member\n"""
+
+        mock_udevadm.side_effect = [mock_udevadm_output1, mock_udevadm_output2]
         lv_path = "./dev/mapper/rhel_vg-rhel_lv"
         mock_tail.return_value = [lv_path]
         mock_subprocess_check_output.return_value = RPM_RESULT_NONE