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Re: [libvirt] [test-API][PATCH v2 4/4] Add qemu_hang test case under libvirtd



On 09/14/2011 06:31 PM, Wayne Sun wrote:
   * repos/libvirtd/qemu_hang.py

     qemu process get hang should not cause libvirtd hang or dead
---
  repos/libvirtd/qemu_hang.py |  142 +++++++++++++++++++++++++++++++++++++++++++
  1 files changed, 142 insertions(+), 0 deletions(-)
  create mode 100644 repos/libvirtd/qemu_hang.py

diff --git a/repos/libvirtd/qemu_hang.py b/repos/libvirtd/qemu_hang.py
new file mode 100644
index 0000000..f377df3
--- /dev/null
+++ b/repos/libvirtd/qemu_hang.py
@@ -0,0 +1,142 @@
+#!/usr/bin/env python
+""" QEMU get hang should not cause libvirtd hang or dead. This test stop
+    a qemu process and check whether libvird get hang. For doing this
+    test, a running domain is required.
+    libvirtd:qemu_hang
+        guestname
+            #GUESTNAME#
+"""
+
+__author__ = 'Wayne Sun: gsun redhat com'
+__date__ = 'Thu Sep 2, 2011'
+__version__ = '0.1.0'
+__credits__ = 'Copyright (C) 2011 Red Hat, Inc.'
+__all__ = ['qemu_hang']
+
+import os
+import re
+import sys
+
+def append_path(path):
+    """Append root path of package"""
+    if path not in sys.path:
+        sys.path.append(path)
+
+pwd = os.getcwd()
+result = re.search('(.*)libvirt-test-API', pwd)
+append_path(result.group(0))
+
+from lib import connectAPI
+from lib import domainAPI
+from utils.Python import utils
+
+VIRSH_LIST = "virsh list --all"
+RESTART_CMD = "service libvirtd restart"
+
+def check_params(params):
+    """Verify inputing parameter dictionary"""
+    logger = params['logger']
+    keys = ['guestname']
+    for key in keys:
+        if key not in params:
+            logger.error("%s is required" %key)
+            return 1
+    return 0
+
+def check_domain_running(domobj, guestname, logger):
+    """ check if the domain exists, may or may not be active """
+    guest_names = domobj.get_list()
+
+    if guestname not in guest_names:
+        logger.error("%s doesn't exist or not running" % guestname)
+        return 1
+    else:
+        return 0
+
+def libvirtd_check(util, logger):
+    """check libvirtd status
+    """
+    cmd = "service libvirtd status"
+    ret, out = util.exec_cmd(cmd, shell=True)
Unused variable 'out'
+    if ret != 0:
+        logger.error("failed to get libvirtd status")
+        return 1
+    else:
+        logger.info(out[0])
+
+    logger.info(VIRSH_LIST)
+    ret, out = util.exec_cmd(VIRSH_LIST, shell=True)
+    if ret != 0:
+        logger.error("failed to get virsh list result")
+        return 1
+    else:
+        for i in range(len(out)):
+            logger.info(out[i])
+
+    return 0
+
+def get_domain_pid(util, logger, guestname):
+    """get the pid of running domain"""
+    logger.info("get the pid of running domain %s"  % guestname)
+    get_pid_cmd = "cat /var/run/libvirt/qemu/%s.pid" % guestname
+    ret, pid = util.exec_cmd(get_pid_cmd, shell=True)
+    if ret:
+        logger.error("fail to get the pid of runnings domain %s" % \
+                     guestname)
+        return 1, ""
+    else:
+        logger.info("the pid of domain %s is %s" % \
+                    (guestname, pid[0]))
+        return 0, pid[0]
+
+def qemu_hang(params):
+    """Hang qemu process, check libvirtd status"""
+    # Initiate and check parameters
+    params_check_result = check_params(params)
+    if params_check_result:
+        return 1
+
+    logger = params['logger']
+    guestname = params['guestname']
+    util = utils.Utils()
+    uri = util.get_uri('127.0.0.1')
+
+    conn = connectAPI.ConnectAPI()
+    virconn = conn.open(uri)
+    domobj = domainAPI.DomainAPI(virconn)
+
+    logger.info("check the domain state")
+    ret = check_domain_running(domobj, guestname, logger)
+    if ret:
+        return 1
+
+    conn.close()
+
+    logger.info("check the libvirtd status:")
+    result = libvirtd_check(util, logger)
Redefining name 'result' from outer scope.
+    if result:
+        return 1
+
+    ret, pid = get_domain_pid(util, logger, guestname)
+    if ret:
+        return 1
+
+    cmd = "kill -STOP %s" % pid
+    logger.info(cmd)
+    ret, out = util.exec_cmd(cmd, shell=True)
Unused variable 'out'
+    if ret:
+        logger.error("failed to stop qemu process of %s" % guestname)
+        return 1
+
+    logger.info("recheck libvirtd status:")
+    result = libvirtd_check(util, logger)
Same as above.
+    if result:
+        return 1
+
+    return 0
+
+def qemu_hang_cleanup(params):
+    """ clean testing environment """
+    pass
+
+


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