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"""The unittest.TestCase for JavaScript tests."""
import copy
import os
import os.path
import sys
import threading
from buildscripts.resmokelib import config
from buildscripts.resmokelib import core
from buildscripts.resmokelib import logging
from buildscripts.resmokelib import utils
from buildscripts.resmokelib.testing.testcases import interface
from buildscripts.resmokelib.utils import registry
class _SingleJSTestCase(interface.ProcessTestCase):
"""A jstest to execute."""
REGISTERED_NAME = registry.LEAVE_UNREGISTERED
def __init__(self, logger, js_filename, shell_executable=None, shell_options=None):
"""Initialize the _SingleJSTestCase with the JS file to run."""
interface.ProcessTestCase.__init__(self, logger, "JSTest", js_filename)
# Command line options override the YAML configuration.
self.shell_executable = utils.default_if_none(config.MONGO_EXECUTABLE, shell_executable)
self.js_filename = js_filename
self.shell_options = utils.default_if_none(shell_options, {}).copy()
def configure(self, fixture, *args, **kwargs):
"""Configure the jstest."""
interface.ProcessTestCase.configure(self, fixture, *args, **kwargs)
def configure_shell(self):
"""Set up the global variables for the shell, and data/ directory for the mongod.
configure_shell() only needs to be called once per test. Therefore if creating multiple
_SingleJSTestCase instances to be run in parallel, only call configure_shell() on one of
them.
"""
global_vars = self.shell_options.get("global_vars", {}).copy()
data_dir = self._get_data_dir(global_vars)
# Set MongoRunner.dataPath if overridden at command line or not specified in YAML.
if config.DBPATH_PREFIX is not None or "MongoRunner.dataPath" not in global_vars:
# dataPath property is the dataDir property with a trailing slash.
data_path = os.path.join(data_dir, "")
else:
data_path = global_vars["MongoRunner.dataPath"]
global_vars["MongoRunner.dataDir"] = data_dir
global_vars["MongoRunner.dataPath"] = data_path
test_data = global_vars.get("TestData", {}).copy()
test_data["minPort"] = core.network.PortAllocator.min_test_port(self.fixture.job_num)
test_data["maxPort"] = core.network.PortAllocator.max_test_port(self.fixture.job_num)
test_data["peerPids"] = self.fixture.pids()
test_data["alwaysUseLogFiles"] = config.ALWAYS_USE_LOG_FILES
test_data["failIfUnterminatedProcesses"] = True
global_vars["TestData"] = test_data
self.shell_options["global_vars"] = global_vars
utils.rmtree(data_dir, ignore_errors=True)
try:
os.makedirs(data_dir)
except os.error:
# Directory already exists.
pass
process_kwargs = copy.deepcopy(self.shell_options.get("process_kwargs", {}))
if process_kwargs \
and "env_vars" in process_kwargs \
and "KRB5_CONFIG" in process_kwargs["env_vars"] \
and "KRB5CCNAME" not in process_kwargs["env_vars"]:
# Use a job-specific credential cache for JavaScript tests involving Kerberos.
krb5_dir = os.path.join(data_dir, "krb5")
try:
os.makedirs(krb5_dir)
except os.error:
pass
process_kwargs["env_vars"]["KRB5CCNAME"] = "DIR:" + krb5_dir
self.shell_options["process_kwargs"] = process_kwargs
def _get_data_dir(self, global_vars):
"""Return the value that mongo shell should set for the MongoRunner.dataDir property."""
# Command line options override the YAML configuration.
data_dir_prefix = utils.default_if_none(config.DBPATH_PREFIX,
global_vars.get("MongoRunner.dataDir"))
data_dir_prefix = utils.default_if_none(data_dir_prefix, config.DEFAULT_DBPATH_PREFIX)
return os.path.join(data_dir_prefix, "job%d" % self.fixture.job_num,
config.MONGO_RUNNER_SUBDIR)
def _make_process(self):
return core.programs.mongo_shell_program(
self.logger, executable=self.shell_executable, filename=self.js_filename,
connection_string=self.fixture.get_driver_connection_url(), **self.shell_options)
class JSTestCase(interface.ProcessTestCase):
"""A wrapper for several copies of a SingleJSTest to execute."""
REGISTERED_NAME = "js_test"
class ThreadWithException(threading.Thread):
"""A wrapper for the thread class that lets us propagate exceptions."""
def __init__(self, *args, **kwargs):
"""Initialize JSTestCase."""
threading.Thread.__init__(self, *args, **kwargs)
self.exc_info = None
def run(self):
"""Run the jstest."""
try:
threading.Thread.run(self)
except: # pylint: disable=bare-except
self.exc_info = sys.exc_info()
DEFAULT_CLIENT_NUM = 1
def __init__(self, logger, js_filename, shell_executable=None, shell_options=None):
"""Initialize the JSTestCase with the JS file to run."""
interface.ProcessTestCase.__init__(self, logger, "JSTest", js_filename)
self.num_clients = JSTestCase.DEFAULT_CLIENT_NUM
self.test_case_template = _SingleJSTestCase(logger, js_filename, shell_executable,
shell_options)
def configure( # pylint: disable=arguments-differ,keyword-arg-before-vararg
self, fixture, num_clients=DEFAULT_CLIENT_NUM, *args, **kwargs):
"""Configure the jstest."""
interface.ProcessTestCase.configure(self, fixture, *args, **kwargs)
self.num_clients = num_clients
self.test_case_template.configure(fixture, *args, **kwargs)
self.test_case_template.configure_shell()
def _make_process(self):
# This function should only be called by interface.py's as_command().
return self.test_case_template._make_process() # pylint: disable=protected-access
def _get_shell_options_for_thread(self, thread_id):
"""Get shell_options with an initialized TestData object for given thread."""
# We give each _SingleJSTestCase its own copy of the shell_options.
shell_options = self.test_case_template.shell_options.copy()
global_vars = shell_options["global_vars"].copy()
test_data = global_vars["TestData"].copy()
# We set a property on TestData to mark the main test when multiple clients are going to run
# concurrently in case there is logic within the test that must execute only once. We also
# set a property on TestData to indicate how many clients are going to run the test so they
# can avoid executing certain logic when there may be other operations running concurrently.
is_main_test = thread_id == 0
test_data["isMainTest"] = is_main_test
test_data["numTestClients"] = self.num_clients
global_vars["TestData"] = test_data
shell_options["global_vars"] = global_vars
return shell_options
def _create_test_case_for_thread(self, logger, thread_id):
"""Create and configure a _SingleJSTestCase to be run in a separate thread."""
shell_options = self._get_shell_options_for_thread(thread_id)
test_case = _SingleJSTestCase(logger, self.test_case_template.js_filename,
self.test_case_template.shell_executable, shell_options)
test_case.configure(self.fixture)
return test_case
def _run_single_copy(self):
test_case = self._create_test_case_for_thread(self.logger, thread_id=0)
try:
test_case.run_test()
# If there was an exception, it will be logged in test_case's run_test function.
finally:
self.return_code = test_case.return_code
def _run_multiple_copies(self):
threads = []
test_cases = []
try:
# If there are multiple clients, make a new thread for each client.
for thread_id in range(self.num_clients):
logger = logging.loggers.new_test_thread_logger(self.logger, self.test_kind,
str(thread_id))
test_case = self._create_test_case_for_thread(logger, thread_id)
test_cases.append(test_case)
thread = self.ThreadWithException(target=test_case.run_test)
threads.append(thread)
thread.start()
except:
self.logger.exception("Encountered an error starting threads for jstest %s.",
self.basename())
raise
finally:
for thread in threads:
thread.join()
# Go through each test's return code and store the first nonzero one if it exists.
return_code = 0
for test_case in test_cases:
if test_case.return_code != 0:
return_code = test_case.return_code
break
self.return_code = return_code
for (thread_id, thread) in enumerate(threads):
if thread.exc_info is not None:
if not isinstance(thread.exc_info[1], self.failureException):
self.logger.error(
"Encountered an error inside thread %d running jstest %s.", thread_id,
self.basename(), exc_info=thread.exc_info)
raise thread.exc_info[1]
def run_test(self):
"""Execute the test."""
if self.num_clients == 1:
self._run_single_copy()
else:
self._run_multiple_copies()
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