282 lines
9.9 KiB
Python
282 lines
9.9 KiB
Python
from __future__ import generators
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import py
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from conftesthandle import Conftest
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from py.__.test.defaultconftest import adddefaultoptions
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optparse = py.compat.optparse
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# XXX move to Config class
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basetemp = None
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def ensuretemp(string, dir=1):
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""" return temporary directory path with
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the given string as the trailing part.
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"""
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global basetemp
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if basetemp is None:
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basetemp = py.path.local.make_numbered_dir(prefix='pytest-')
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return basetemp.ensure(string, dir=dir)
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class CmdOptions(object):
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""" pure container instance for holding cmdline options
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as attributes.
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"""
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def __repr__(self):
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return "<CmdOptions %r>" %(self.__dict__,)
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class Config(object):
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""" central hub for dealing with configuration/initialization data. """
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Option = optparse.Option
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def __init__(self):
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self.option = CmdOptions()
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self._parser = optparse.OptionParser(
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usage="usage: %prog [options] [query] [filenames of tests]")
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self.conftest = Conftest()
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self._initialized = False
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self._overwrite_dict = {}
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def parse(self, args):
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""" parse cmdline arguments into this config object.
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Note that this can only be called once per testing process.
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"""
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assert not self._initialized, (
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"can only parse cmdline args once per Config object")
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self._initialized = True
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adddefaultoptions(self)
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self.conftest.setinitial(args)
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args = [str(x) for x in args]
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cmdlineoption, args = self._parser.parse_args(args)
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self.option.__dict__.update(vars(cmdlineoption))
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if not args:
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args.append(py.std.os.getcwd())
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self.topdir = gettopdir(args)
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self.args = args
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def initdirect(self, topdir, repr, coltrails=None):
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assert not self._initialized
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self._initialized = True
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self.topdir = py.path.local(topdir)
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self.merge_repr(repr)
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self._coltrails = coltrails
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def getcolitems(self):
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""" return initial collectors. """
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trails = getattr(self, '_coltrails', None)
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return [self._getcollector(path) for path in (trails or self.args)]
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def _getcollector(self, path):
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if isinstance(path, tuple):
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relpath, names = path
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fspath = self.topdir.join(relpath)
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col = self._getcollector(fspath)
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else:
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path = py.path.local(path)
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assert path.check(), "%s: path does not exist" %(path,)
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col = self._getrootcollector(path)
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names = path.relto(col.fspath).split(path.sep)
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return col.getitembynames(names)
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def _getrootcollector(self, path):
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pkgpath = path.pypkgpath()
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if pkgpath is None:
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pkgpath = path.check(file=1) and path.dirpath() or path
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col = self.conftest.rget("Directory", pkgpath)(pkgpath)
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col.config = self
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return col
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def addoptions(self, groupname, *specs):
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""" add a named group of options to the current testing session.
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This function gets invoked during testing session initialization.
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"""
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for spec in specs:
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for shortopt in spec._short_opts:
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if not shortopt.isupper():
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raise ValueError(
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"custom options must be capital letter "
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"got %r" %(spec,)
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)
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return self._addoptions(groupname, *specs)
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def _addoptions(self, groupname, *specs):
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optgroup = optparse.OptionGroup(self._parser, groupname)
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optgroup.add_options(specs)
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self._parser.add_option_group(optgroup)
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for opt in specs:
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if hasattr(opt, 'default') and opt.dest:
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setattr(self.option, opt.dest, opt.default)
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return self.option
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def getvalue(self, name, path=None):
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""" return 'name' value looked up from the first conftest file
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found up the path (including the path itself).
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if path is None, lookup the value in the initial
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conftest modules found during command line parsing.
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"""
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try:
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return self._overwrite_dict[name]
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except KeyError:
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return self.conftest.rget(name, path)
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def getvalue_from_confpath(self, name, path):
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""" same as previous, but returns only value from explicit
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conftest path
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"""
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if isinstance(path, str):
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path = py.path.local(path)
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return self.conftest.rget_path(name, path)
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def initsession(self):
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""" return an initialized session object. """
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cls = self._getsessionclass()
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session = cls(self)
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session.fixoptions()
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return session
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def _getsessionclass(self):
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""" return Session class determined from cmdline options
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and looked up in initial config modules.
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"""
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if self.option.session is not None:
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return self.conftest.rget(self.option.session)
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else:
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name = self._getsessionname()
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importpath = globals()[name]
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mod = __import__(importpath, None, None, '__doc__')
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return getattr(mod, name)
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def _getsessionname(self):
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""" return default session name as determined from options. """
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name = 'TerminalSession'
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if self.option.dist:
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name = 'RSession'
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else:
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optnames = 'startserver runbrowser apigen restreport boxing'.split()
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for opt in optnames:
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if getattr(self.option, opt, False):
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name = 'LSession'
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break
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else:
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if self.getvalue('dist_boxing'):
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name = 'LSession'
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if self.option.looponfailing:
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name = 'RemoteTerminalSession'
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elif self.option.executable:
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name = 'RemoteTerminalSession'
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return name
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def is_boxed(self):
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# XXX probably not a good idea to have this special function ...
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return self.option.boxing or self.getvalue("dist_boxing")
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def _reparse(self, args):
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""" this is used from tests that want to re-invoke parse(). """
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global config_per_process
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oldconfig = py.test.config
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try:
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config_per_process = py.test.config = Config()
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config_per_process.parse(args)
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return config_per_process
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finally:
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config_per_process = py.test.config = oldconfig
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def _overwrite(self, name, value):
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""" this is used from tests to overwrite values irrespectives of conftests.
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"""
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self._overwrite_dict[name] = value
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def make_repr(self, conftestnames, optnames=None):
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""" return a marshallable representation
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of conftest and cmdline options.
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if optnames is None, all options
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on self.option will be transferred.
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"""
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conftestdict = {}
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for name in conftestnames:
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value = self.getvalue(name)
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checkmarshal(name, value)
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conftestdict[name] = value
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cmdlineopts = {}
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if optnames is None:
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optnames = dir(self.option)
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for name in optnames:
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if not name.startswith("_"):
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value = getattr(self.option, name)
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checkmarshal(name, value)
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cmdlineopts[name] = value
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l = []
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for path in self.args:
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path = py.path.local(path)
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l.append(path.relto(self.topdir))
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return l, conftestdict, cmdlineopts
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def merge_repr(self, repr):
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""" merge in the conftest and cmdline option values
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found in the given representation (produced
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by make_repr above).
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The repr-contained conftest values are
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stored on the default conftest module (last
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priority) and the cmdline options on self.option.
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"""
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class override:
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def __init__(self, d):
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self.__dict__.update(d)
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self.__file__ = "<options from remote>"
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args, conftestdict, cmdlineopts = repr
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self.args = [self.topdir.join(x) for x in args]
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self.conftest.setinitial(self.args)
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self.conftest._path2confmods[None].append(override(conftestdict))
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for name, val in cmdlineopts.items():
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setattr(self.option, name, val)
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def get_collector_trail(self, collector):
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""" provide a trail relative to the topdir,
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which can be used to reconstruct the
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collector (possibly on a different host
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starting from a different topdir).
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"""
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chain = collector.listchain()
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relpath = chain[0].fspath.relto(self.topdir)
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if not relpath:
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if chain[0].fspath == self.topdir:
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relpath = "."
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else:
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raise ValueError("%r not relative to %s"
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%(chain[0], self.topdir))
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return relpath, tuple([x.name for x in chain[1:]])
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# this is the one per-process instance of py.test configuration
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config_per_process = Config()
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# default import paths for sessions
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TerminalSession = 'py.__.test.terminal.terminal'
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RemoteTerminalSession = 'py.__.test.terminal.remote'
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RSession = 'py.__.test.rsession.rsession'
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LSession = 'py.__.test.rsession.rsession'
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#
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# helpers
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#
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def checkmarshal(name, value):
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try:
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py.std.marshal.dumps(value)
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except ValueError:
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raise ValueError("%s=%r is not marshallable" %(name, value))
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def gettopdir(args):
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""" return the top directory for the given paths.
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if the common base dir resides in a python package
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parent directory of the root package is returned.
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"""
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args = [py.path.local(arg) for arg in args]
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p = reduce(py.path.local.common, args)
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assert p, "cannot determine common basedir of %s" %(args,)
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pkgdir = p.pypkgpath()
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if pkgdir is None:
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return p
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else:
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return pkgdir.dirpath()
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