[PATCH 2/3] KVM-test: Simple stop/continue test

[Amos Kong <akong@redhat.com>]

Change guest state by monitor cmd, verify guest status,
and try to login guest by network.

Changes from v1:
- use new method verify_status() to check vm status

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Amos Kong <akong@redhat.com>
---
 client/tests/kvm/tests/stop_continue.py |   43 +++++++++++++++++++++++++++++++
 client/tests/kvm/tests_base.cfg.sample  |    4 +++
 2 files changed, 47 insertions(+), 0 deletions(-)
 create mode 100644 client/tests/kvm/tests/stop_continue.py

diff --git a/client/tests/kvm/tests/stop_continue.py b/client/tests/kvm/tests/stop_continue.py
new file mode 100644
index 0000000..62df48e
--- /dev/null
+++ b/client/tests/kvm/tests/stop_continue.py
@@ -0,0 +1,43 @@
+import logging
+from autotest_lib.client.common_lib import error
+
+
+def run_stop_continue(test, params, env):
+    """
+    Suspend a running Virtual Machine and verify its state.
+
+    1) Boot the vm
+    2) Suspend the vm through stop command
+    3) Verify the state through info status command
+    4) Check is the ssh session to guest is still responsive,
+       if succeed, fail the test.
+
+    @param test: Kvm test object
+    @param params: Dictionary with the test parameters
+    @param env: Dictionary with test environment.
+    """
+    vm = env.get_vm(params["main_vm"])
+    vm.verify_alive()
+    timeout = float(params.get("login_timeout", 240))
+    session = vm.wait_for_login(timeout=timeout)
+
+    try:
+        logging.info("Stop the VM")
+        vm.monitor.cmd("stop")
+        logging.info("Verifying the status of VM is 'paused'")
+        vm.verify_status("paused")
+
+        logging.info("Check the session is responsive")
+        if session.is_responsive():
+            raise error.TestFail("Session is still responsive after stop")
+
+        logging.info("Try to resume the guest")
+        vm.monitor.cmd("cont")
+        logging.info("Verifying the status of VM is 'running'")
+        vm.verify_status("running")
+
+        logging.info("Try to re-log into guest")
+        session = vm.wait_for_login(timeout=timeout)
+
+    finally:
+        session.close()
diff --git a/client/tests/kvm/tests_base.cfg.sample b/client/tests/kvm/tests_base.cfg.sample
index 78c84c6..1e659bc 100644
--- a/client/tests/kvm/tests_base.cfg.sample
+++ b/client/tests/kvm/tests_base.cfg.sample
@@ -261,6 +261,10 @@ variants:
             - systemtap:
                 test_control_file = systemtap.control
 
+    - stop_continue:
+        type = stop_continue
+        kill_vm_on_error = yes
+
     - linux_s3:     install setup unattended_install.cdrom
         only Linux
         type = linux_s3