Add grow-disk tests in QA

Signed-off-by: Iustin Pop <iustin@google.com>
Reviewed-by: Michael Hanselmann <hansmi@google.com>

qa/ganeti-qa.py

@@ -252,7 +252,7 @@ def RunCommonInstanceTests(instance):
   RunTestIf(["instance-console", "rapi"],
             qa_rapi.TestRapiInstanceConsole, instance)
 
-  DOWN_TESTS = ["instance-reinstall", "instance-rename"]
+  DOWN_TESTS = ["instance-reinstall", "instance-rename", "instance-grow-disk"]
   # shutdown instance for any 'down' tests
   RunTestIf(DOWN_TESTS, qa_instance.TestInstanceShutdown, instance)
 
@@ -280,6 +280,8 @@ def RunCommonInstanceTests(instance):
       RunTestIf("rapi", qa_rapi.TestRapiInstanceRenameAndBack,
                 rename_source, rename_target)
 
+  RunTestIf(["instance-grow-disk"], qa_instance.TestInstanceGrowDisk, instance)
+
   # and now start the instance again
   RunTestIf(DOWN_TESTS, qa_instance.TestInstanceStartup, instance)
 

qa/qa-sample.json

@@ -106,6 +106,7 @@
 
     "instance-export": true,
     "instance-failover": true,
+    "instance-grow-disk": true,
     "instance-import": true,
     "instance-info": true,
     "instance-list": true,

qa/qa_instance.py

@@ -279,6 +279,28 @@ def TestInstanceConvertDisk(instance, snode):
                  "-n", snode["primary"], name])
 
 
+def TestInstanceGrowDisk(instance):
+  """gnt-instance grow-disk"""
+  name = instance["name"]
+  all_size = qa_config.get("disk")
+  all_grow = qa_config.get("disk-growth")
+  if not all_grow:
+    # missing disk sizes but instance grow disk has been enabled,
+    # let's set fixed/nomimal growth
+    all_grow = ["128M" for _ in all_size]
+  for idx, (size, grow) in enumerate(zip(all_size, all_grow)):
+    # succeed in grow by amount
+    AssertCommand(["gnt-instance", "grow-disk", name, str(idx), grow])
+    # fail in grow to the old size
+    AssertCommand(["gnt-instance", "grow-disk", "--absolute", name, str(idx),
+                   size], fail=True)
+    # succeed to grow to old size + 2 * growth
+    int_size = utils.ParseUnit(size)
+    int_grow = utils.ParseUnit(grow)
+    AssertCommand(["gnt-instance", "grow-disk", "--absolute", name, str(idx),
+                   str(int_size + 2 * int_grow)])
+
+
 def TestInstanceList():
   """gnt-instance list"""
   qa_utils.GenericQueryTest("gnt-instance", query.INSTANCE_FIELDS.keys())