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virt.py
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import os, sys, logging, imp, Queue
from autotest.client import test
from autotest.client.shared import error
from virttest import utils_misc, utils_params, utils_env, env_process
from virttest import data_dir, bootstrap, funcatexit, version
class virt(test.test):
"""
Shared test class infrastructure for tests such as the KVM test.
It comprises a subtest load system, use of parameters, and an env
file, all code that can be reused among those virt tests.
"""
version = 1
env_version = utils_env.get_env_version()
def initialize(self, params):
# Change the value of the preserve_srcdir attribute according to
# the value present on the configuration file (defaults to yes)
if params.get("preserve_srcdir", "yes") == "yes":
self.preserve_srcdir = True
virtdir = os.path.dirname(sys.modules[__name__].__file__)
self.virtdir = os.path.join(virtdir, "shared")
# Place where virt software will be built/linked
self.builddir = os.path.join(virtdir, params.get("vm_type"))
self.background_errors = Queue.Queue()
def verify_background_errors(self):
"""
Verify if there are any errors that happened on background threads.
@raise Exception: Any exception stored on the background_errors queue.
"""
try:
exc = self.background_errors.get(block=False)
except Queue.Empty:
pass
else:
raise exc[1], None, exc[2]
def run_once(self, params):
# Convert params to a Params object
params = utils_params.Params(params)
# If a dependency test prior to this test has failed, let's fail
# it right away as TestNA.
if params.get("dependency_failed") == 'yes':
raise error.TestNAError("Test dependency failed")
# Report virt test version
logging.info(version.get_pretty_version_info())
# Report the parameters we've received and write them as keyvals
logging.debug("Test parameters:")
keys = params.keys()
keys.sort()
for key in keys:
logging.debug(" %s = %s", key, params[key])
self.write_test_keyval({key: params[key]})
# Set the log file dir for the logging mechanism used by kvm_subprocess
# (this must be done before unpickling env)
utils_misc.set_log_file_dir(self.debugdir)
# Open the environment file
env_filename = os.path.join(self.bindir, params.get("vm_type"),
params.get("env", "env"))
env = utils_env.Env(env_filename, self.env_version)
test_passed = False
t_type = None
try:
try:
try:
subtest_dirs = []
bin_dir = self.bindir
other_subtests_dirs = params.get("other_tests_dirs", "")
for d in other_subtests_dirs.split():
# Replace split char.
d = os.path.join(*d.split("/"))
subtestdir = os.path.join(bin_dir, d, "tests")
if not os.path.isdir(subtestdir):
raise error.TestError("Directory %s not"
" exist." % (subtestdir))
subtest_dirs += data_dir.SubdirList(subtestdir,
bootstrap.test_filter)
# Verify if we have the correspondent source file for it
shared_test_dir = os.path.dirname(self.virtdir)
shared_test_dir = os.path.join(shared_test_dir, "tests")
subtest_dirs += data_dir.SubdirList(shared_test_dir,
bootstrap.test_filter)
virt_test_dir = os.path.join(self.bindir,
params.get("vm_type"), "tests")
subtest_dirs += data_dir.SubdirList(virt_test_dir,
bootstrap.test_filter)
subtest_dir = None
# Get the test routine corresponding to the specified
# test type
t_types = params.get("type").split()
test_modules = []
for t_type in t_types:
for d in subtest_dirs:
module_path = os.path.join(d, "%s.py" % t_type)
if os.path.isfile(module_path):
subtest_dir = d
break
if subtest_dir is None:
msg = ("Could not find test file %s.py on tests"
"dirs %s" % (t_type, subtest_dirs))
raise error.TestError(msg)
# Load the test module
f, p, d = imp.find_module(t_type, [subtest_dir])
test_modules.append((t_type,
imp.load_module(t_type, f, p, d)))
f.close()
# Preprocess
try:
env_process.preprocess(self, params, env)
finally:
env.save()
# Run the test function
for t_type, test_module in test_modules:
msg = "Running function: %s.run_%s()" % (t_type, t_type)
logging.info(msg)
run_func = getattr(test_module, "run_%s" % t_type)
try:
run_func(self, params, env)
self.verify_background_errors()
finally:
env.save()
test_passed = True
error_message = funcatexit.run_exitfuncs(env, t_type)
if error_message:
raise error.TestWarn("funcatexit failed with: %s"
% error_message)
except Exception, e:
if (not t_type is None):
error_message = funcatexit.run_exitfuncs(env, t_type)
if error_message:
logging.error(error_message)
logging.error("Test failed: %s: %s",
e.__class__.__name__, e)
try:
env_process.postprocess_on_error(
self, params, env)
finally:
env.save()
raise
finally:
# Postprocess
try:
try:
env_process.postprocess(self, params, env)
except Exception, e:
if test_passed:
raise
logging.error("Exception raised during "
"postprocessing: %s", e)
finally:
env.save()
except Exception, e:
if params.get("abort_on_error") != "yes":
raise
# Abort on error
logging.info("Aborting job (%s)", e)
if params.get("vm_type") == "qemu":
for vm in env.get_all_vms():
if vm.is_dead():
continue
logging.info("VM '%s' is alive.", vm.name)
for m in vm.monitors:
logging.info("'%s' has a %s monitor unix socket at: %s",
vm.name, m.protocol, m.filename)
logging.info("The command line used to start '%s' was:\n%s",
vm.name, vm.make_qemu_command())
raise error.JobError("Abort requested (%s)" % e)