Adding a test to shutdown both VMs for spice tests.

Adding client_guest_shutdown test to replace the default
shutdown test to shutdown both VMs used for the spice tests.

Signed-off-by: Vimal Patel <vipatel@redhat.com>
Signed-off-by: Marian Krcmarik <mkrcmari@redhat.com>

Author: vi-patel

tests/client_guest_shutdown.py

@@ -0,0 +1,49 @@
+import time
+from autotest.client.shared import error
+from virttest import utils_misc
+
+
+@error.context_aware
+def run_client_guest_shutdown(test, params, env):
+    """
+    KVM shutdown test:
+    For a test with two VMs: client & guest
+    1) Log into the VMS(guests) that represent the client &guest
+    2) Send a shutdown command to the guest, or issue a system_powerdown
+       monitor command (depending on the value of shutdown_method)
+    3) Wait until the guest is down
+
+    @param test: kvm test object
+    @param params: Dictionary with the test parameters
+    @param env: Dictionary with test environment
+    """
+    client_vm = env.get_vm(params["client_vm"]) 
+    client_vm.verify_alive()
+    guest_vm = env.get_vm(params["guest_vm"])
+    guest_vm.verify_alive()
+
+    timeout = int(params.get("login_timeout", 360))
+
+    #shutdown both of the sessions
+    for vm in [client_vm, guest_vm]:
+        vm_session = vm.wait_for_login(timeout=timeout, username="root",
+                                       password="123456")
+        try:
+            error.base_context("shutting down the VM")
+            if params.get("shutdown_method") == "shell":
+                # Send a shutdown command to the guest's shell
+                vm_session.sendline(vm.get_params().get("shutdown_command"))
+                error.context("waiting VM to go down (shutdown shell cmd)")
+            elif params.get("shutdown_method") == "system_powerdown":
+                # Sleep for a while -- give the guest a chance to finish booting
+                time.sleep(float(params.get("sleep_before_powerdown", 10)))
+                # Send a system_powerdown monitor command
+                vm.monitor.cmd("system_powerdown")
+                error.context("waiting VM to go down "
+                              "(system_powerdown monitor cmd)")
+
+            if not utils_misc.wait_for(vm.is_dead, 240, 0, 1):
+                raise error.TestFail("Guest refuses to go down")
+
+        finally:
+            vm_session.close()