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import logging
import optparse
import os
import re
import sys
import ConfigParser
from optparse import OptionParser
from nose.util import absdir, tolist
from nose.plugins.manager import NoPlugins
from warnings import warn
log = logging.getLogger(__name__)
# not allowed in config files
option_blacklist = ['help', 'verbose']
config_files = [
# Linux users will prefer this
"~/.noserc",
# Windows users will prefer this
"~/nose.cfg"
]
# plaforms on which the exe check defaults to off
# Windows and IronPython
exe_allowed_platforms = ('win32', 'cli')
class NoSuchOptionError(Exception):
def __init__(self, name):
Exception.__init__(self, name)
self.name = name
class ConfigError(Exception):
pass
class ConfiguredDefaultsOptionParser(object):
"""
Handler for options from commandline and config files.
"""
def __init__(self, parser, config_section, error=None, file_error=None):
self._parser = parser
self._config_section = config_section
if error is None:
error = self._parser.error
self._error = error
if file_error is None:
file_error = lambda msg, **kw: error(msg)
self._file_error = file_error
def _configTuples(self, cfg, filename):
config = []
if self._config_section in cfg.sections():
for name, value in cfg.items(self._config_section):
config.append((name, value, filename))
return config
def _readFromFilenames(self, filenames):
config = []
for filename in filenames:
cfg = ConfigParser.RawConfigParser()
try:
cfg.read(filename)
except ConfigParser.Error, exc:
raise ConfigError("Error reading config file %r: %s" %
(filename, str(exc)))
config.extend(self._configTuples(cfg, filename))
return config
def _readFromFileObject(self, fh):
cfg = ConfigParser.RawConfigParser()
try:
filename = fh.name
except AttributeError:
filename = '<???>'
try:
cfg.readfp(fh)
except ConfigParser.Error, exc:
raise ConfigError("Error reading config file %r: %s" %
(filename, str(exc)))
return self._configTuples(cfg, filename)
def _readConfiguration(self, config_files):
try:
config_files.readline
except AttributeError:
filename_or_filenames = config_files
if isinstance(filename_or_filenames, basestring):
filenames = [filename_or_filenames]
else:
filenames = filename_or_filenames
config = self._readFromFilenames(filenames)
else:
fh = config_files
config = self._readFromFileObject(fh)
return config
def _processConfigValue(self, name, value, values, parser):
opt_str = '--' + name
option = parser.get_option(opt_str)
if option is None:
raise NoSuchOptionError(name)
else:
option.process(opt_str, value, values, parser)
def _applyConfigurationToValues(self, parser, config, values):
for name, value, filename in config:
if name in option_blacklist:
continue
try:
self._processConfigValue(name, value, values, parser)
except NoSuchOptionError, exc:
self._file_error(
"Error reading config file %r: "
"no such option %r" % (filename, exc.name),
name=name, filename=filename)
except optparse.OptionValueError, exc:
msg = str(exc).replace('--' + name, repr(name), 1)
self._file_error("Error reading config file %r: "
"%s" % (filename, msg),
name=name, filename=filename)
def parseArgsAndConfigFiles(self, args, config_files):
values = self._parser.get_default_values()
try:
config = self._readConfiguration(config_files)
except ConfigError, exc:
self._error(str(exc))
else:
self._applyConfigurationToValues(self._parser, config, values)
return self._parser.parse_args(args, values)
class Config(object):
"""nose configuration.
Instances of Config are used throughout nose to configure
behavior, including plugin lists. Here are the default values for
all config keys::
self.env = env = kw.pop('env', {})
self.args = ()
self.testMatch = re.compile(r'(?:^|[\\b_\\.%s-])[Tt]est' % os.sep)
self.addPaths = not env.get('NOSE_NOPATH', False)
self.configSection = 'nosetests'
self.debug = env.get('NOSE_DEBUG')
self.debugLog = env.get('NOSE_DEBUG_LOG')
self.exclude = None
self.getTestCaseNamesCompat = False
self.includeExe = env.get('NOSE_INCLUDE_EXE',
sys.platform in exe_allowed_platforms)
self.ignoreFiles = (re.compile(r'^\.'),
re.compile(r'^_'),
re.compile(r'^setup\.py$')
)
self.include = None
self.loggingConfig = None
self.logStream = sys.stderr
self.options = NoOptions()
self.parser = None
self.plugins = NoPlugins()
self.srcDirs = ('lib', 'src')
self.runOnInit = True
self.stopOnError = env.get('NOSE_STOP', False)
self.stream = sys.stderr
self.testNames = ()
self.verbosity = int(env.get('NOSE_VERBOSE', 1))
self.where = ()
self.workingDir = None
"""
def __init__(self, **kw):
self.env = env = kw.pop('env', {})
self.args = ()
self.testMatchPat = env.get('NOSE_TESTMATCH',
r'(?:^|[\b_\.%s-])[Tt]est' % os.sep)
self.testMatch = re.compile(self.testMatchPat)
self.addPaths = not env.get('NOSE_NOPATH', False)
self.configSection = 'nosetests'
self.debug = env.get('NOSE_DEBUG')
self.debugLog = env.get('NOSE_DEBUG_LOG')
self.exclude = None
self.getTestCaseNamesCompat = False
self.includeExe = env.get('NOSE_INCLUDE_EXE',
sys.platform in exe_allowed_platforms)
self.ignoreFiles = (re.compile(r'^\.'),
re.compile(r'^_'),
re.compile(r'^setup\.py$')
)
self.include = None
self.loggingConfig = None
self.logStream = sys.stderr
self.options = NoOptions()
self.parser = None
self.plugins = NoPlugins()
self.srcDirs = ('lib', 'src')
self.runOnInit = True
self.stopOnError = env.get('NOSE_STOP', False)
self.stream = sys.stderr
self.testNames = []
self.verbosity = int(env.get('NOSE_VERBOSE', 1))
self.where = ()
self.workingDir = os.getcwd()
self._default = self.__dict__.copy()
self.update(kw)
self._orig = self.__dict__.copy()
def __repr__(self):
d = self.__dict__.copy()
# don't expose env, could include sensitive info
d['env'] = {}
keys = [ k for k in d.keys()
if not k.startswith('_') ]
keys.sort()
return "Config(%s)" % ', '.join([ '%s=%r' % (k, d[k])
for k in keys ])
__str__ = __repr__
def _parseArgs(self, argv, cfg_files):
def warn_sometimes(msg, name=None, filename=None):
if (hasattr(self.plugins, 'excludedOption') and
self.plugins.excludedOption(name)):
msg = ("Option %r in config file %r ignored: "
"excluded by runtime environment" %
(name, filename))
warn(msg, RuntimeWarning)
else:
raise ConfigError(msg)
parser = ConfiguredDefaultsOptionParser(
self.getParser(), self.configSection, file_error=warn_sometimes)
return parser.parseArgsAndConfigFiles(argv[1:], cfg_files)
def configure(self, argv=None, doc=None):
"""Configure the nose running environment. Execute configure before
collecting tests with nose.TestCollector to enable output capture and
other features.
"""
env = self.env
if argv is None:
argv = sys.argv
cfg_files = getattr(self, 'files', [])
options, args = self._parseArgs(argv, cfg_files)
# If -c --config has been specified on command line,
# load those config files and reparse
if getattr(options, 'files', []):
options, args = self._parseArgs(argv, options.files)
self.options = options
if args:
self.testNames = args
if options.testNames is not None:
self.testNames.extend(tolist(options.testNames))
# `where` is an append action, so it can't have a default value
# in the parser, or that default will always be in the list
if not options.where:
options.where = env.get('NOSE_WHERE', None)
# include and exclude also
if not options.include:
options.include = env.get('NOSE_INCLUDE', [])
if not options.exclude:
options.exclude = env.get('NOSE_EXCLUDE', [])
self.addPaths = options.addPaths
self.stopOnError = options.stopOnError
self.verbosity = options.verbosity
self.includeExe = options.includeExe
self.debug = options.debug
self.debugLog = options.debugLog
self.loggingConfig = options.loggingConfig
self.configureLogging()
if options.where is not None:
self.configureWhere(options.where)
if options.testMatch:
self.testMatch = re.compile(options.testMatch)
if options.include:
self.include = map(re.compile, tolist(options.include))
log.info("Including tests matching %s", options.include)
if options.exclude:
self.exclude = map(re.compile, tolist(options.exclude))
log.info("Excluding tests matching %s", options.exclude)
# When listing plugins we don't want to run them
if not options.showPlugins:
self.plugins.configure(options, self)
self.plugins.begin()
def configureLogging(self):
"""Configure logging for nose, or optionally other packages. Any logger
name may be set with the debug option, and that logger will be set to
debug level and be assigned the same handler as the nose loggers, unless
it already has a handler.
"""
if self.loggingConfig:
from logging.config import fileConfig
fileConfig(self.loggingConfig)
return
format = logging.Formatter('%(name)s: %(levelname)s: %(message)s')
if self.debugLog:
handler = logging.FileHandler(self.debugLog)
else:
handler = logging.StreamHandler(self.logStream)
handler.setFormatter(format)
logger = logging.getLogger('nose')
logger.propagate = 0
# only add our default handler if there isn't already one there
# this avoids annoying duplicate log messages.
if not logger.handlers:
logger.addHandler(handler)
# default level
lvl = logging.WARNING
if self.verbosity >= 5:
lvl = 0
elif self.verbosity >= 4:
lvl = logging.DEBUG
elif self.verbosity >= 3:
lvl = logging.INFO
logger.setLevel(lvl)
# individual overrides
if self.debug:
# no blanks
debug_loggers = [ name for name in self.debug.split(',')
if name ]
for logger_name in debug_loggers:
l = logging.getLogger(logger_name)
l.setLevel(logging.DEBUG)
if not l.handlers and not logger_name.startswith('nose'):
l.addHandler(handler)
def configureWhere(self, where):
"""Configure the working directory or directories for the test run.
"""
from nose.importer import add_path
self.workingDir = None
where = tolist(where)
warned = False
for path in where:
if not self.workingDir:
abs_path = absdir(path)
if abs_path is None:
raise ValueError("Working directory %s not found, or "
"not a directory" % path)
log.info("Set working dir to %s", abs_path)
self.workingDir = abs_path
if self.addPaths and \
os.path.exists(os.path.join(abs_path, '__init__.py')):
log.info("Working directory %s is a package; "
"adding to sys.path" % abs_path)
add_path(abs_path)
continue
if not warned:
warn("Use of multiple -w arguments is deprecated and "
"support may be removed in a future release. You can "
"get the same behavior by passing directories without "
"the -w argument on the command line, or by using the "
"--tests argument in a configuration file.",
DeprecationWarning)
self.testNames.append(path)
def default(self):
"""Reset all config values to defaults.
"""
self.__dict__.update(self._default)
def getParser(self, doc=None):
"""Get the command line option parser.
"""
if self.parser:
return self.parser
env = self.env
parser = OptionParser(doc)
parser.add_option(
"-V","--version", action="store_true",
dest="version", default=False,
help="Output nose version and exit")
parser.add_option(
"-p", "--plugins", action="store_true",
dest="showPlugins", default=False,
help="Output list of available plugins and exit. Combine with "
"higher verbosity for greater detail")
parser.add_option(
"-v", "--verbose",
action="count", dest="verbosity",
default=self.verbosity,
help="Be more verbose. [NOSE_VERBOSE]")
parser.add_option(
"--verbosity", action="store", dest="verbosity",
type="int", help="Set verbosity; --verbosity=2 is "
"the same as -v")
parser.add_option(
"-q", "--quiet", action="store_const", const=0, dest="verbosity")
parser.add_option(
"-c", "--config", action="append", dest="files",
help="Load configuration from config file(s). May be specified "
"multiple times; in that case, all config files will be "
"loaded and combined")
parser.add_option(
"-w", "--where", action="append", dest="where",
help="Look for tests in this directory. "
"May be specified multiple times. The first directory passed "
"will be used as the working directory, in place of the current "
"working directory, which is the default. Others will be added "
"to the list of tests to execute. [NOSE_WHERE]"
)
parser.add_option("-m", "--match", "--testmatch", action="store",
dest="testMatch",
help="Use this regular expression to "
"find tests [NOSE_TESTMATCH]",
default=self.testMatchPat)
parser.add_option(
"--tests", action="store", dest="testNames", default=None,
help="Run these tests (comma-separated list). This argument is "
"useful mainly from configuration files; on the command line, "
"just pass the tests to run as additional arguments with no "
"switch.")
parser.add_option(
"-l", "--debug", action="store",
dest="debug", default=self.debug,
help="Activate debug logging for one or more systems. "
"Available debug loggers: nose, nose.importer, "
"nose.inspector, nose.plugins, nose.result and "
"nose.selector. Separate multiple names with a comma.")
parser.add_option(
"--debug-log", dest="debugLog", action="store",
default=self.debugLog,
help="Log debug messages to this file "
"(default: sys.stderr)")
parser.add_option(
"--logging-config", "--log-config",
dest="loggingConfig", action="store",
default=self.loggingConfig,
help="Load logging config from this file -- bypasses all other"
" logging config settings.")
parser.add_option(
"-e", "--exclude", action="append", dest="exclude",
help="Don't run tests that match regular "
"expression [NOSE_EXCLUDE]")
parser.add_option(
"-i", "--include", action="append", dest="include",
help="Also run tests that match regular "
"expression [NOSE_INCLUDE]")
parser.add_option(
"-x", "--stop", action="store_true", dest="stopOnError",
default=self.stopOnError,
help="Stop running tests after the first error or failure")
parser.add_option(
"-P", "--no-path-adjustment", action="store_false",
dest="addPaths",
default=self.addPaths,
help="Don't make any changes to sys.path when "
"loading tests [NOSE_NOPATH]")
parser.add_option(
"--exe", action="store_true", dest="includeExe",
default=self.includeExe,
help="Look for tests in python modules that are "
"executable. Normal behavior is to exclude executable "
"modules, since they may not be import-safe "
"[NOSE_INCLUDE_EXE]")
parser.add_option(
"--noexe", action="store_false", dest="includeExe",
help="DO NOT look for tests in python modules that are "
"executable. (The default on the windows platform is to "
"do so.)")
self.plugins.loadPlugins()
self.pluginOpts(parser)
self.parser = parser
return parser
def help(self, doc=None):
"""Return the generated help message
"""
return self.getParser(doc).format_help()
def pluginOpts(self, parser):
self.plugins.addOptions(parser, self.env)
def reset(self):
self.__dict__.update(self._orig)
def todict(self):
return self.__dict__.copy()
def update(self, d):
self.__dict__.update(d)
class NoOptions(object):
"""Options container that returns None for all options.
"""
def __getattr__(self, attr):
return None
def __nonzero__(self):
return False
def user_config_files():
"""Return path to any existing user config files
"""
return filter(os.path.exists,
map(os.path.expanduser, config_files))
def all_config_files():
"""Return path to any existing user config files, plus any setup.cfg
in the current working directory.
"""
user = user_config_files()
if os.path.exists('setup.cfg'):
return user + ['setup.cfg']
return user
# used when parsing config files
def flag(val):
"""Does the value look like an on/off flag?"""
if val == 1:
return True
elif val == 0:
return False
val = str(val)
if len(val) > 5:
return False
return val.upper() in ('1', '0', 'F', 'T', 'TRUE', 'FALSE', 'ON', 'OFF')
def _bool(val):
return str(val).upper() in ('1', 'T', 'TRUE', 'ON')