check for thinlv name before assigning to thinlv_params (#276)

Only set the thinlv_param name if thinlv has 'name'

Author: richm

library/blivet.py

@@ -1375,7 +1375,7 @@ def get_vol_size(volume):
 
             thinlv_params = dict(thin_pool=True, size=tlv_size, parents=[pool_device])
 
-            if thinlv is not None:
+            if thinlv['name'] is not None:
                 thinlv_params.update(dict(name=thinlv['name']))
 
             try:

tests/tests_create_thinp_then_remove_nvme_generated.yml

@@ -0,0 +1,13 @@
+---
+# This file was generated by generate_tests.py
+- hosts: all
+  tags:
+    - tests::nvme
+  tasks:
+    - name: set disk interface for test
+      set_fact:
+        storage_test_use_interface: "nvme"
+
+- import_playbook: tests_create_thinp_then_remove.yml
+  tags:
+    - tests::nvme

tests/tests_create_thinp_then_remove_scsi_generated.yml

@@ -0,0 +1,13 @@
+---
+# This file was generated by generate_tests.py
+- hosts: all
+  tags:
+    - tests::scsi
+  tasks:
+    - name: set disk interface for test
+      set_fact:
+        storage_test_use_interface: "scsi"
+
+- import_playbook: tests_create_thinp_then_remove.yml
+  tags:
+    - tests::scsi