Merge remote branch 'cros/upstream' into master

client/tests/kvm/tests/netperf.py

-import logging, commands, os
+import logging, os
 from autotest_lib.client.common_lib import error
 from autotest_lib.client.bin import utils
-import kvm_test_utils
+import kvm_subprocess
+
 
 def run_netperf(test, params, env):
     """
     Network stress test with netperf.
 
     1) Boot up a VM.
     2) Launch netserver on guest.
     3) Execute netperf client on host with different protocols.
     4) Output the test result.
 
     @param test: KVM test object.
     @param params: Dictionary with the test parameters.
     @param env: Dictionary with test environment.
     """
-    vm = kvm_test_utils.get_living_vm(env, params.get("main_vm"))
+    vm = env.get_vm(params["main_vm"])
+    vm.verify_alive()
     login_timeout = int(params.get("login_timeout", 360))
-    session = kvm_test_utils.wait_for_login(vm, timeout=login_timeout)
+    session = vm.wait_for_login(timeout=login_timeout)
 
     netperf_dir = os.path.join(os.environ['AUTODIR'], "tests/netperf2")
     setup_cmd = params.get("setup_cmd")
     guest_ip = vm.get_address()
     result_file = os.path.join(test.resultsdir, "output_%s" % test.iteration)
 
     firewall_flush = "iptables -F"
-    session.get_command_output(firewall_flush)
+    session.cmd_output(firewall_flush)
 
     for i in params.get("netperf_files").split():
-        if not vm.copy_files_to(os.path.join(netperf_dir, i), "/tmp"):
-            raise error.TestError("Could not copy file %s to guest" % i)
+        vm.copy_files_to(os.path.join(netperf_dir, i), "/tmp")
 
-    if session.get_command_status(firewall_flush):
+    try:
+        session.cmd(firewall_flush)
+    except kvm_subprocess.ShellError:
         logging.warning("Could not flush firewall rules on guest")
 
-    if session.get_command_status(setup_cmd % "/tmp", timeout=200):
-        raise error.TestFail("Fail to setup netperf on guest")
-
-    if session.get_command_status(params.get("netserver_cmd") % "/tmp"):
-        raise error.TestFail("Fail to start netperf server on guest")
+    session.cmd(setup_cmd % "/tmp", timeout=200)
+    session.cmd(params.get("netserver_cmd") % "/tmp")
 
     try:
         logging.info("Setup and run netperf client on host")
         utils.run(setup_cmd % netperf_dir)
         list_fail = []
         result = open(result_file, "w")
         result.write("Netperf test results\n")
 
         for i in params.get("protocols").split():
-            cmd = params.get("netperf_cmd") % (netperf_dir, i, guest_ip)
-            logging.info("Netperf: protocol %s", i)
-            try:
-                netperf_output = utils.system_output(cmd,
-                                                     retain_output=True)
-                result.write("%s\n" % netperf_output)
-            except:
-                logging.error("Test of protocol %s failed", i)
-                list_fail.append(i)
+            packet_size = params.get("packet_size", "1500")
+            for size in packet_size.split():
+                cmd = params.get("netperf_cmd") % (netperf_dir, i,
+                                                   guest_ip, size)
+                logging.info("Netperf: protocol %s", i)
+                try:
+                    netperf_output = utils.system_output(cmd,
+                                                         retain_output=True)
+                    result.write("%s\n" % netperf_output)
+                except:
+                    logging.error("Test of protocol %s failed", i)
+                    list_fail.append(i)
 
         result.close()
 
         if list_fail:
             raise error.TestFail("Some netperf tests failed: %s" %
                                  ", ".join(list_fail))
 
     finally:
-        session.get_command_output("killall netserver")
+        session.cmd_output("killall netserver")
         session.close()