tests.boot: Add a parameter to reboot guest for several times

We touched some bugs when rebooting guest for several times.
Signed-off-by: NAmos Kong <akong@redhat.com>
Signed-off-by: NQingtang Zhou <qzhou@redhat.com>
Acked-by: NFeng Yang <fyang@redhat.com>
Acked-by: NSuqin Huang <shuang@redhat.com>

tests/boot.py

@@ -30,6 +30,8 @@ def run_boot(test, params, env):
         error.context("Reboot guest.")
         if params["reboot_method"] == "system_reset":
             time.sleep(int(params.get("sleep_before_reset", 10)))
-        session = vm.reboot(session, params["reboot_method"], 0, timeout)
+            # Reboot the VM
+        for i in range(int(params.get("reboot_count", 1))):
+            session = vm.reboot(session, params["reboot_method"], 0, timeout)
 
     session.close()

tests/cfg/reboot.cfg

@@ -4,6 +4,7 @@
     reboot_method = shell
     kill_vm_on_error = yes
     login_timeout = 240
+    reboot_count = 25
     # this script is used to setup test env for (linux)guest/host
     # before performance testing
     # rh_perf_envsetup_script = scripts/rh_perf_envsetup.sh