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""" version info, help messages, tracing configuration. """
import py
import pytest
import inspect, sys
from _pytest.core import varnames
def pytest_addoption(parser):
group = parser.getgroup('debugconfig')
group.addoption('--version', action="store_true",
help="display pytest lib version and import information.")
group._addoption("-h", "--help", action="store_true", dest="help",
help="show help message and configuration info")
group._addoption('-p', action="append", dest="plugins", default = [],
metavar="name",
help="early-load given plugin (multi-allowed).")
group.addoption('--traceconfig',
action="store_true", dest="traceconfig", default=False,
help="trace considerations of conftest.py files."),
group.addoption('--debug',
action="store_true", dest="debug", default=False,
help="generate and show internal debugging information.")
def pytest_cmdline_main(config):
if config.option.version:
p = py.path.local(pytest.__file__)
sys.stderr.write("This is py.test version %s, imported from %s\n" %
(pytest.__version__, p))
plugininfo = getpluginversioninfo(config)
if plugininfo:
for line in plugininfo:
sys.stderr.write(line + "\n")
return 0
elif config.option.help:
config.pluginmanager.do_configure(config)
showhelp(config)
return 0
def showhelp(config):
tw = py.io.TerminalWriter()
tw.write(config._parser.optparser.format_help())
tw.line()
tw.line()
#tw.sep( "=", "config file settings")
tw.line("[pytest] ini-options in the next "
"pytest.ini|tox.ini|setup.cfg file:")
tw.line()
for name in config._parser._ininames:
help, type, default = config._parser._inidict[name]
if type is None:
type = "string"
spec = "%s (%s)" % (name, type)
line = " %-24s %s" %(spec, help)
tw.line(line[:tw.fullwidth])
tw.line() ; tw.line()
#tw.sep("=")
return
tw.line("conftest.py options:")
tw.line()
conftestitems = sorted(config._parser._conftestdict.items())
for name, help in conftest_options + conftestitems:
line = " %-15s %s" %(name, help)
tw.line(line[:tw.fullwidth])
tw.line()
#tw.sep( "=")
conftest_options = [
('pytest_plugins', 'list of plugin names to load'),
]
def getpluginversioninfo(config):
lines = []
plugininfo = config.pluginmanager._plugin_distinfo
if plugininfo:
lines.append("setuptools registered plugins:")
for dist, plugin in plugininfo:
loc = getattr(plugin, '__file__', repr(plugin))
content = "%s-%s at %s" % (dist.project_name, dist.version, loc)
lines.append(" " + content)
return lines
def pytest_report_header(config):
lines = []
if config.option.debug or config.option.traceconfig:
lines.append("using: pytest-%s pylib-%s" %
(pytest.__version__,py.__version__))
verinfo = getpluginversioninfo(config)
if verinfo:
lines.extend(verinfo)
if config.option.traceconfig:
lines.append("active plugins:")
plugins = []
items = config.pluginmanager._name2plugin.items()
for name, plugin in items:
if hasattr(plugin, '__file__'):
r = plugin.__file__
else:
r = repr(plugin)
lines.append(" %-20s: %s" %(name, r))
return lines
# =====================================================
# validate plugin syntax and hooks
# =====================================================
def pytest_plugin_registered(manager, plugin):
methods = collectattr(plugin)
hooks = {}
for hookspec in manager.hook._hookspecs:
hooks.update(collectattr(hookspec))
stringio = py.io.TextIO()
def Print(*args):
if args:
stringio.write(" ".join(map(str, args)))
stringio.write("\n")
fail = False
while methods:
name, method = methods.popitem()
#print "checking", name
if isgenerichook(name):
continue
if name not in hooks:
if not getattr(method, 'optionalhook', False):
Print("found unknown hook:", name)
fail = True
else:
#print "checking", method
method_args = list(varnames(method))
if '__multicall__' in method_args:
method_args.remove('__multicall__')
hook = hooks[name]
hookargs = varnames(hook)
for arg in method_args:
if arg not in hookargs:
Print("argument %r not available" %(arg, ))
Print("actual definition: %s" %(formatdef(method)))
Print("available hook arguments: %s" %
", ".join(hookargs))
fail = True
break
#if not fail:
# print "matching hook:", formatdef(method)
if fail:
name = getattr(plugin, '__name__', plugin)
raise PluginValidationError("%s:\n%s" % (name, stringio.getvalue()))
class PluginValidationError(Exception):
""" plugin failed validation. """
def isgenerichook(name):
return name == "pytest_plugins" or \
name.startswith("pytest_funcarg__")
def collectattr(obj):
methods = {}
for apiname in dir(obj):
if apiname.startswith("pytest_"):
methods[apiname] = getattr(obj, apiname)
return methods
def formatdef(func):
return "%s%s" % (
func.__name__,
inspect.formatargspec(*inspect.getargspec(func))
)
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