0a8b27ff49
are used with test methods. This fixues issue346. Thanks to Ronny Pfannschmidt and Donald Stufft for helping to isolate it.
701 lines
24 KiB
Python
701 lines
24 KiB
Python
""" core implementation of testing process: init, session, runtest loop. """
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import py
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import pytest, _pytest
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import os, sys, imp
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try:
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from collections import MutableMapping as MappingMixin
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except ImportError:
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from UserDict import DictMixin as MappingMixin
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from _pytest.runner import collect_one_node, Skipped
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tracebackcutdir = py.path.local(_pytest.__file__).dirpath()
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# exitcodes for the command line
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EXIT_OK = 0
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EXIT_TESTSFAILED = 1
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EXIT_INTERRUPTED = 2
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EXIT_INTERNALERROR = 3
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EXIT_USAGEERROR = 4
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name_re = py.std.re.compile("^[a-zA-Z_]\w*$")
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def pytest_addoption(parser):
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parser.addini("norecursedirs", "directory patterns to avoid for recursion",
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type="args", default=('.*', 'CVS', '_darcs', '{arch}'))
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#parser.addini("dirpatterns",
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# "patterns specifying possible locations of test files",
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# type="linelist", default=["**/test_*.txt",
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# "**/test_*.py", "**/*_test.py"]
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#)
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group = parser.getgroup("general", "running and selection options")
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group._addoption('-x', '--exitfirst', action="store_true", default=False,
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dest="exitfirst",
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help="exit instantly on first error or failed test."),
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group._addoption('--maxfail', metavar="num",
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action="store", type=int, dest="maxfail", default=0,
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help="exit after first num failures or errors.")
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group._addoption('--strict', action="store_true",
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help="run pytest in strict mode, warnings become errors.")
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group = parser.getgroup("collect", "collection")
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group.addoption('--collectonly', '--collect-only', action="store_true",
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help="only collect tests, don't execute them."),
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group.addoption('--pyargs', action="store_true",
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help="try to interpret all arguments as python packages.")
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group.addoption("--ignore", action="append", metavar="path",
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help="ignore path during collection (multi-allowed).")
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# when changing this to --conf-cut-dir, config.py Conftest.setinitial
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# needs upgrading as well
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group.addoption('--confcutdir', dest="confcutdir", default=None,
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metavar="dir",
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help="only load conftest.py's relative to specified dir.")
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group = parser.getgroup("debugconfig",
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"test session debugging and configuration")
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group.addoption('--basetemp', dest="basetemp", default=None, metavar="dir",
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help="base temporary directory for this test run.")
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def pytest_namespace():
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collect = dict(Item=Item, Collector=Collector, File=File, Session=Session)
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return dict(collect=collect)
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def pytest_configure(config):
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py.test.config = config # compatibiltiy
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if config.option.exitfirst:
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config.option.maxfail = 1
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def wrap_session(config, doit):
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"""Skeleton command line program"""
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session = Session(config)
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session.exitstatus = EXIT_OK
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initstate = 0
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try:
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try:
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config.do_configure()
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initstate = 1
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config.hook.pytest_sessionstart(session=session)
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initstate = 2
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doit(config, session)
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except pytest.UsageError:
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msg = sys.exc_info()[1].args[0]
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sys.stderr.write("ERROR: %s\n" %(msg,))
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session.exitstatus = EXIT_USAGEERROR
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except KeyboardInterrupt:
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excinfo = py.code.ExceptionInfo()
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config.hook.pytest_keyboard_interrupt(excinfo=excinfo)
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session.exitstatus = EXIT_INTERRUPTED
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except:
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excinfo = py.code.ExceptionInfo()
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config.notify_exception(excinfo, config.option)
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session.exitstatus = EXIT_INTERNALERROR
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if excinfo.errisinstance(SystemExit):
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sys.stderr.write("mainloop: caught Spurious SystemExit!\n")
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else:
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if session._testsfailed:
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session.exitstatus = EXIT_TESTSFAILED
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finally:
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session.startdir.chdir()
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if initstate >= 2:
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config.hook.pytest_sessionfinish(
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session=session,
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exitstatus=session.exitstatus)
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if initstate >= 1:
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config.do_unconfigure()
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config.pluginmanager.ensure_shutdown()
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return session.exitstatus
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def pytest_cmdline_main(config):
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return wrap_session(config, _main)
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def _main(config, session):
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""" default command line protocol for initialization, session,
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running tests and reporting. """
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config.hook.pytest_collection(session=session)
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config.hook.pytest_runtestloop(session=session)
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def pytest_collection(session):
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return session.perform_collect()
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def pytest_runtestloop(session):
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if session.config.option.collectonly:
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return True
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def getnextitem(i):
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# this is a function to avoid python2
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# keeping sys.exc_info set when calling into a test
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# python2 keeps sys.exc_info till the frame is left
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try:
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return session.items[i+1]
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except IndexError:
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return None
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for i, item in enumerate(session.items):
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nextitem = getnextitem(i)
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item.config.hook.pytest_runtest_protocol(item=item, nextitem=nextitem)
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if session.shouldstop:
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raise session.Interrupted(session.shouldstop)
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return True
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def pytest_ignore_collect(path, config):
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p = path.dirpath()
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ignore_paths = config._getconftest_pathlist("collect_ignore", path=p)
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ignore_paths = ignore_paths or []
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excludeopt = config.getvalue("ignore")
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if excludeopt:
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ignore_paths.extend([py.path.local(x) for x in excludeopt])
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return path in ignore_paths
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class HookProxy:
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def __init__(self, fspath, config):
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self.fspath = fspath
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self.config = config
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def __getattr__(self, name):
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hookmethod = getattr(self.config.hook, name)
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def call_matching_hooks(**kwargs):
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plugins = self.config._getmatchingplugins(self.fspath)
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return hookmethod.pcall(plugins, **kwargs)
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return call_matching_hooks
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def compatproperty(name):
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def fget(self):
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# deprecated - use pytest.name
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return getattr(pytest, name)
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return property(fget)
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class NodeKeywords(MappingMixin):
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def __init__(self, node):
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self.node = node
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self.parent = node.parent
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self._markers = {node.name: True}
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def __getitem__(self, key):
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try:
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return self._markers[key]
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except KeyError:
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if self.parent is None:
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raise
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return self.parent.keywords[key]
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def __setitem__(self, key, value):
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self._markers[key] = value
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def __delitem__(self, key):
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raise ValueError("cannot delete key in keywords dict")
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def __iter__(self):
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seen = set(self._markers)
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if self.parent is not None:
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seen.update(self.parent.keywords)
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return iter(seen)
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def __len__(self):
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return len(self.__iter__())
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def keys(self):
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return list(self)
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def __repr__(self):
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return "<NodeKeywords for node %s>" % (self.node, )
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class Node(object):
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""" base class for Collector and Item the test collection tree.
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Collector subclasses have children, Items are terminal nodes."""
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def __init__(self, name, parent=None, config=None, session=None):
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#: a unique name within the scope of the parent node
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self.name = name
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#: the parent collector node.
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self.parent = parent
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#: the pytest config object
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self.config = config or parent.config
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#: the session this node is part of
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self.session = session or parent.session
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#: filesystem path where this node was collected from (can be None)
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self.fspath = getattr(parent, 'fspath', None)
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#: keywords/markers collected from all scopes
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self.keywords = NodeKeywords(self)
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#: allow adding of extra keywords to use for matching
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self.extra_keyword_matches = set()
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#self.extrainit()
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@property
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def ihook(self):
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""" fspath sensitive hook proxy used to call pytest hooks"""
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return self.session.gethookproxy(self.fspath)
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#def extrainit(self):
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# """"extra initialization after Node is initialized. Implemented
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# by some subclasses. """
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Module = compatproperty("Module")
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Class = compatproperty("Class")
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Instance = compatproperty("Instance")
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Function = compatproperty("Function")
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File = compatproperty("File")
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Item = compatproperty("Item")
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def _getcustomclass(self, name):
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cls = getattr(self, name)
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if cls != getattr(pytest, name):
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py.log._apiwarn("2.0", "use of node.%s is deprecated, "
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"use pytest_pycollect_makeitem(...) to create custom "
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"collection nodes" % name)
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return cls
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def __repr__(self):
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return "<%s %r>" %(self.__class__.__name__,
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getattr(self, 'name', None))
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# methods for ordering nodes
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@property
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def nodeid(self):
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""" a ::-separated string denoting its collection tree address. """
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try:
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return self._nodeid
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except AttributeError:
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self._nodeid = x = self._makeid()
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return x
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def _makeid(self):
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return self.parent.nodeid + "::" + self.name
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def __eq__(self, other):
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if not isinstance(other, Node):
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return False
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return (self.__class__ == other.__class__ and
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self.name == other.name and self.parent == other.parent)
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def __ne__(self, other):
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return not self == other
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def __hash__(self):
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return hash((self.name, self.parent))
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def setup(self):
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pass
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def teardown(self):
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pass
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def _memoizedcall(self, attrname, function):
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exattrname = "_ex_" + attrname
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failure = getattr(self, exattrname, None)
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if failure is not None:
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py.builtin._reraise(failure[0], failure[1], failure[2])
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if hasattr(self, attrname):
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return getattr(self, attrname)
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try:
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res = function()
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except py.builtin._sysex:
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raise
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except:
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failure = py.std.sys.exc_info()
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setattr(self, exattrname, failure)
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raise
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setattr(self, attrname, res)
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return res
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def listchain(self):
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""" return list of all parent collectors up to self,
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starting from root of collection tree. """
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chain = []
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item = self
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while item is not None:
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chain.append(item)
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item = item.parent
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chain.reverse()
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return chain
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def add_marker(self, marker):
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""" dynamically add a marker object to the node.
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``marker`` can be a string or pytest.mark.* instance.
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"""
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from _pytest.mark import MarkDecorator
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if isinstance(marker, py.builtin._basestring):
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marker = MarkDecorator(marker)
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elif not isinstance(marker, MarkDecorator):
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raise ValueError("is not a string or pytest.mark.* Marker")
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self.keywords[marker.name] = marker
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def get_marker(self, name):
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""" get a marker object from this node or None if
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the node doesn't have a marker with that name. """
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val = self.keywords.get(name, None)
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if val is not None:
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from _pytest.mark import MarkInfo, MarkDecorator
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if isinstance(val, (MarkDecorator, MarkInfo)):
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return val
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def listextrakeywords(self):
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""" Return a set of all extra keywords in self and any parents."""
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extra_keywords = set()
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item = self
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for item in self.listchain():
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extra_keywords.update(item.extra_keyword_matches)
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return extra_keywords
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def listnames(self):
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return [x.name for x in self.listchain()]
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def getplugins(self):
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return self.config._getmatchingplugins(self.fspath)
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def addfinalizer(self, fin):
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""" register a function to be called when this node is finalized.
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This method can only be called when this node is active
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in a setup chain, for example during self.setup().
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"""
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self.session._setupstate.addfinalizer(fin, self)
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def getparent(self, cls):
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current = self
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while current and not isinstance(current, cls):
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current = current.parent
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return current
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def _prunetraceback(self, excinfo):
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pass
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def _repr_failure_py(self, excinfo, style=None):
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fm = self.session._fixturemanager
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if excinfo.errisinstance(fm.FixtureLookupError):
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return excinfo.value.formatrepr()
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if self.config.option.fulltrace:
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style="long"
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else:
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self._prunetraceback(excinfo)
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# XXX should excinfo.getrepr record all data and toterminal()
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# process it?
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if style is None:
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if self.config.option.tbstyle == "short":
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style = "short"
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else:
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style = "long"
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return excinfo.getrepr(funcargs=True,
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showlocals=self.config.option.showlocals,
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style=style)
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repr_failure = _repr_failure_py
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class Collector(Node):
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""" Collector instances create children through collect()
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and thus iteratively build a tree.
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"""
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# the set of exceptions to interpret as "Skip the whole module" during
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# collection
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skip_exceptions = (Skipped,)
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class CollectError(Exception):
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""" an error during collection, contains a custom message. """
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def collect(self):
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""" returns a list of children (items and collectors)
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for this collection node.
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"""
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raise NotImplementedError("abstract")
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def repr_failure(self, excinfo):
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""" represent a collection failure. """
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if excinfo.errisinstance(self.CollectError):
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exc = excinfo.value
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return str(exc.args[0])
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return self._repr_failure_py(excinfo, style="short")
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def _memocollect(self):
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""" internal helper method to cache results of calling collect(). """
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return self._memoizedcall('_collected', lambda: list(self.collect()))
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def _prunetraceback(self, excinfo):
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if hasattr(self, 'fspath'):
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traceback = excinfo.traceback
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ntraceback = traceback.cut(path=self.fspath)
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if ntraceback == traceback:
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ntraceback = ntraceback.cut(excludepath=tracebackcutdir)
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excinfo.traceback = ntraceback.filter()
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class FSCollector(Collector):
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def __init__(self, fspath, parent=None, config=None, session=None):
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fspath = py.path.local(fspath) # xxx only for test_resultlog.py?
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name = fspath.basename
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if parent is not None:
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rel = fspath.relto(parent.fspath)
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if rel:
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name = rel
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name = name.replace(os.sep, "/")
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super(FSCollector, self).__init__(name, parent, config, session)
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self.fspath = fspath
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def _makeid(self):
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if self == self.session:
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return "."
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relpath = self.session.fspath.bestrelpath(self.fspath)
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if os.sep != "/":
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relpath = relpath.replace(os.sep, "/")
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return relpath
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class File(FSCollector):
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""" base class for collecting tests from a file. """
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class Item(Node):
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""" a basic test invocation item. Note that for a single function
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there might be multiple test invocation items.
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"""
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nextitem = None
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def reportinfo(self):
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return self.fspath, None, ""
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@property
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def location(self):
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try:
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return self._location
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except AttributeError:
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location = self.reportinfo()
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# bestrelpath is a quite slow function
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cache = self.config.__dict__.setdefault("_bestrelpathcache", {})
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try:
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fspath = cache[location[0]]
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except KeyError:
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fspath = self.session.fspath.bestrelpath(location[0])
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cache[location[0]] = fspath
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location = (fspath, location[1], str(location[2]))
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self._location = location
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return location
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class NoMatch(Exception):
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""" raised if matching cannot locate a matching names. """
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class Session(FSCollector):
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class Interrupted(KeyboardInterrupt):
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""" signals an interrupted test run. """
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__module__ = 'builtins' # for py3
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def __init__(self, config):
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FSCollector.__init__(self, py.path.local(), parent=None,
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config=config, session=self)
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self.config.pluginmanager.register(self, name="session", prepend=True)
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self._testsfailed = 0
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self.shouldstop = False
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self.trace = config.trace.root.get("collection")
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self._norecursepatterns = config.getini("norecursedirs")
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self.startdir = py.path.local()
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def pytest_collectstart(self):
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if self.shouldstop:
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raise self.Interrupted(self.shouldstop)
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def pytest_runtest_logreport(self, report):
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if report.failed and not hasattr(report, 'wasxfail'):
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self._testsfailed += 1
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maxfail = self.config.getvalue("maxfail")
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if maxfail and self._testsfailed >= maxfail:
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self.shouldstop = "stopping after %d failures" % (
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self._testsfailed)
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pytest_collectreport = pytest_runtest_logreport
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def isinitpath(self, path):
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return path in self._initialpaths
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def gethookproxy(self, fspath):
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return HookProxy(fspath, self.config)
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def perform_collect(self, args=None, genitems=True):
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hook = self.config.hook
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try:
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items = self._perform_collect(args, genitems)
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hook.pytest_collection_modifyitems(session=self,
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config=self.config, items=items)
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finally:
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hook.pytest_collection_finish(session=self)
|
|
return items
|
|
|
|
def _perform_collect(self, args, genitems):
|
|
if args is None:
|
|
args = self.config.args
|
|
self.trace("perform_collect", self, args)
|
|
self.trace.root.indent += 1
|
|
self._notfound = []
|
|
self._initialpaths = set()
|
|
self._initialparts = []
|
|
self.items = items = []
|
|
for arg in args:
|
|
parts = self._parsearg(arg)
|
|
self._initialparts.append(parts)
|
|
self._initialpaths.add(parts[0])
|
|
rep = collect_one_node(self)
|
|
self.ihook.pytest_collectreport(report=rep)
|
|
self.trace.root.indent -= 1
|
|
if self._notfound:
|
|
for arg, exc in self._notfound:
|
|
line = "(no name %r in any of %r)" % (arg, exc.args[0])
|
|
raise pytest.UsageError("not found: %s\n%s" %(arg, line))
|
|
if not genitems:
|
|
return rep.result
|
|
else:
|
|
if rep.passed:
|
|
for node in rep.result:
|
|
self.items.extend(self.genitems(node))
|
|
return items
|
|
|
|
def collect(self):
|
|
for parts in self._initialparts:
|
|
arg = "::".join(map(str, parts))
|
|
self.trace("processing argument", arg)
|
|
self.trace.root.indent += 1
|
|
try:
|
|
for x in self._collect(arg):
|
|
yield x
|
|
except NoMatch:
|
|
# we are inside a make_report hook so
|
|
# we cannot directly pass through the exception
|
|
self._notfound.append((arg, sys.exc_info()[1]))
|
|
self.trace.root.indent -= 1
|
|
break
|
|
self.trace.root.indent -= 1
|
|
|
|
def _collect(self, arg):
|
|
names = self._parsearg(arg)
|
|
path = names.pop(0)
|
|
if path.check(dir=1):
|
|
assert not names, "invalid arg %r" %(arg,)
|
|
for path in path.visit(fil=lambda x: x.check(file=1),
|
|
rec=self._recurse, bf=True, sort=True):
|
|
for x in self._collectfile(path):
|
|
yield x
|
|
else:
|
|
assert path.check(file=1)
|
|
for x in self.matchnodes(self._collectfile(path), names):
|
|
yield x
|
|
|
|
def _collectfile(self, path):
|
|
ihook = self.gethookproxy(path)
|
|
if not self.isinitpath(path):
|
|
if ihook.pytest_ignore_collect(path=path, config=self.config):
|
|
return ()
|
|
return ihook.pytest_collect_file(path=path, parent=self)
|
|
|
|
def _recurse(self, path):
|
|
ihook = self.gethookproxy(path.dirpath())
|
|
if ihook.pytest_ignore_collect(path=path, config=self.config):
|
|
return
|
|
for pat in self._norecursepatterns:
|
|
if path.check(fnmatch=pat):
|
|
return False
|
|
ihook = self.gethookproxy(path)
|
|
ihook.pytest_collect_directory(path=path, parent=self)
|
|
return True
|
|
|
|
def _tryconvertpyarg(self, x):
|
|
mod = None
|
|
path = [os.path.abspath('.')] + sys.path
|
|
for name in x.split('.'):
|
|
# ignore anything that's not a proper name here
|
|
# else something like --pyargs will mess up '.'
|
|
# since imp.find_module will actually sometimes work for it
|
|
# but it's supposed to be considered a filesystem path
|
|
# not a package
|
|
if name_re.match(name) is None:
|
|
return x
|
|
try:
|
|
fd, mod, type_ = imp.find_module(name, path)
|
|
except ImportError:
|
|
return x
|
|
else:
|
|
if fd is not None:
|
|
fd.close()
|
|
|
|
if type_[2] != imp.PKG_DIRECTORY:
|
|
path = [os.path.dirname(mod)]
|
|
else:
|
|
path = [mod]
|
|
return mod
|
|
|
|
def _parsearg(self, arg):
|
|
""" return (fspath, names) tuple after checking the file exists. """
|
|
arg = str(arg)
|
|
if self.config.option.pyargs:
|
|
arg = self._tryconvertpyarg(arg)
|
|
parts = str(arg).split("::")
|
|
relpath = parts[0].replace("/", os.sep)
|
|
path = self.fspath.join(relpath, abs=True)
|
|
if not path.check():
|
|
if self.config.option.pyargs:
|
|
msg = "file or package not found: "
|
|
else:
|
|
msg = "file not found: "
|
|
raise pytest.UsageError(msg + arg)
|
|
parts[0] = path
|
|
return parts
|
|
|
|
def matchnodes(self, matching, names):
|
|
self.trace("matchnodes", matching, names)
|
|
self.trace.root.indent += 1
|
|
nodes = self._matchnodes(matching, names)
|
|
num = len(nodes)
|
|
self.trace("matchnodes finished -> ", num, "nodes")
|
|
self.trace.root.indent -= 1
|
|
if num == 0:
|
|
raise NoMatch(matching, names[:1])
|
|
return nodes
|
|
|
|
def _matchnodes(self, matching, names):
|
|
if not matching or not names:
|
|
return matching
|
|
name = names[0]
|
|
assert name
|
|
nextnames = names[1:]
|
|
resultnodes = []
|
|
for node in matching:
|
|
if isinstance(node, pytest.Item):
|
|
if not names:
|
|
resultnodes.append(node)
|
|
continue
|
|
assert isinstance(node, pytest.Collector)
|
|
rep = collect_one_node(node)
|
|
if rep.passed:
|
|
has_matched = False
|
|
for x in rep.result:
|
|
if x.name == name:
|
|
resultnodes.extend(self.matchnodes([x], nextnames))
|
|
has_matched = True
|
|
# XXX accept IDs that don't have "()" for class instances
|
|
if not has_matched and len(rep.result) == 1 and x.name == "()":
|
|
nextnames.insert(0, name)
|
|
resultnodes.extend(self.matchnodes([x], nextnames))
|
|
node.ihook.pytest_collectreport(report=rep)
|
|
return resultnodes
|
|
|
|
def genitems(self, node):
|
|
self.trace("genitems", node)
|
|
if isinstance(node, pytest.Item):
|
|
node.ihook.pytest_itemcollected(item=node)
|
|
yield node
|
|
else:
|
|
assert isinstance(node, pytest.Collector)
|
|
rep = collect_one_node(node)
|
|
if rep.passed:
|
|
for subnode in rep.result:
|
|
for x in self.genitems(subnode):
|
|
yield x
|
|
node.ihook.pytest_collectreport(report=rep)
|
|
|
|
|