qemu.tests: Add new case of live snapshot during installation.

Signed-off-by: NCong Li <coli@redhat.com>

qemu/tests/cfg/live_snapshot.cfg

@@ -36,6 +36,23 @@
             filesize = 2000
             transfer_timeout = 1200
             tmp_dir = /var/tmp/
+        - with_installation:
+            subcommand = installation
+            need_install = yes
+            start_vm = no
+            images = "stg"
+            image_name_stg = "images/live_snapshot_base"
+            image_size_stg = 20G
+            boot_drive_stg = yes
+            medium = cdrom
+            installation = cdrom
+            kernel = vmlinuz
+            initrd = initrd.img
+            force_create_image_stg = yes
+            image_aio = threads
+            unattended_delivery_method = cdrom
+            cdroms += " unattended"
+            index_enable = no
         - base:
             type = live_snapshot_base
             backup_image_before_testing = yes

qemu/tests/live_snapshot.py

@@ -2,6 +2,7 @@ import time
 import logging
 
 from autotest.client.shared import error
+from autotest.client.shared import utils
 
 from virttest import utils_test
 
@@ -43,11 +44,12 @@ def run(test, params, env):
             logging.error(snapshot_info)
             raise error.TestFail("Snapshot doesn't exist")
 
-    vm = env.get_vm(params["main_vm"])
-    vm.verify_alive()
     timeout = int(params.get("login_timeout", 360))
     dd_timeout = int(params.get("dd_timeout", 900))
-    session = vm.wait_for_login(timeout=timeout)
+    vm = env.get_vm(params["main_vm"])
+    if params.get("need_install", "no") == "no":
+        vm.verify_alive()
+        session = vm.wait_for_login(timeout=timeout)
 
     def runtime_test():
         try:
@@ -102,5 +104,21 @@ def run(test, params, env):
                     raise
         finally:
             session.close()
+
+    def installation_test():
+        args = (test, params, env)
+        bg = utils.InterruptedThread(
+            utils_test.run_virt_sub_test, args,
+            {"sub_type": "unattended_install"})
+        bg.start()
+        if bg.is_alive():
+            sleep_time = int(params.get("sleep_time", 60))
+            time.sleep(sleep_time)
+            create_snapshot(vm)
+            try:
+                bg.join()
+            except Exception:
+                raise
+
     subcommand = params.get("subcommand")
     eval("%s_test()" % subcommand)