Add a test for the device factory.

Create an lvm-over-md layout across the two virtio scratch disks, then
test blivet's ability to populate and print the devicetree with that
setup.

Also, remove the task to copy out logs as it doesn't work.

tests/.fmf/version

@@ -0,0 +1 @@
+1

tests/lvm_factory.py

@@ -0,0 +1,42 @@
+#!/usr/bin/python3
+
+import argparse
+import sys
+
+import blivet
+
+
+POOL_NAME = "blivet_test"
+
+parser = argparse.ArgumentParser()
+parser.add_argument('-d', '--disks', default='')
+args = parser.parse_args()
+
+b = blivet.Blivet()
+b.reset()
+
+disks = list()
+for disk_id in args.disks.split(','):
+    disk = b.devicetree.resolve_device(disk_id)
+    if not disk.is_disk:
+        sys.stderr.write("specified disk '%s' is not a disk\n" % disk_id)
+        sys.exit(1)
+
+    disks.append(disk)
+    b.initialize_disk(disk)
+
+if len(disks) > 1:
+    container_raid_level = "raid1"
+    total_size = min(d.size for d in disks)
+else:
+    container_raid_level = None
+    total_size = sum(d.size for d in disks)
+
+lv1 = b.factory_device(size=total_size*0.8, disks=disks,
+                       name="lv1", container_name=POOL_NAME,
+                       fstype='xfs', device_type=blivet.devicefactory.DEVICE_TYPE_LVM)
+lv2 = b.factory_device(disks=disks, name="lv2",
+                       container_name=POOL_NAME, container_raid_level='raid1',
+                       fstype='ext4', device_type=blivet.devicefactory.DEVICE_TYPE_LVM)
+
+b.do_it()

tests/provision.fmf

@@ -0,0 +1,8 @@
+---
+
+standard-inventory-qcow2:
+  qemu:
+    m: 1G
+    drive:
+      - size: 10737418240
+      - size: 10737418240

tests/tests.yml

@@ -5,14 +5,12 @@
       tags:
         - classic
       tests:
-        - list-devices:
+        - list-devices-1:
+            dir: .
+            run: python3 /usr/share/doc/python3-blivet/examples/list_devices.py
+        - lvm-factory:
+            dir: .
+            run: python3 ./lvm_factory.py --disks=vda,vdb
+        - list-devices-2:
             dir: .
             run: python3 /usr/share/doc/python3-blivet/examples/list_devices.py
-
-  tasks:
-    - name: copy out blivet logs
-      fetch:
-        dest: "{{ artifacts }}"
-        src: "{{ item }}"
-        flat: yes
-      loop: ["/tmp/blivet.log", "/tmp/program.log"]