729 lines
25 KiB
Python
729 lines
25 KiB
Python
""" core implementation of testing process: init, session, runtest loop. """
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import re
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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
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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 = 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}', '*.egg'])
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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._addoption("-c", metavar="file", type=str, dest="inifilename",
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help="load configuration from `file` instead of trying to locate one of the implicit configuration files.")
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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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pytest.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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args = sys.exc_info()[1].args
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for msg in args:
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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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excinfo = None # Explicitly break reference cycle.
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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.getoption("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 FSHookProxy(object):
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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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plugins = self.config._getmatchingplugins(self.fspath)
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x = self.config.hook._getcaller(name, plugins)
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self.__dict__[name] = x
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return x
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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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# used for storing artificial fixturedefs for direct parametrization
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self._name2pseudofixturedef = {}
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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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def warn(self, code, message):
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""" generate a warning with the given code and message for this
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item. """
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assert isinstance(code, str)
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fslocation = getattr(self, "location", None)
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if fslocation is None:
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fslocation = getattr(self, "fspath", None)
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else:
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fslocation = "%s:%s" % fslocation[:2]
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self.ihook.pytest_logwarning(code=code, message=message,
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nodeid=self.nodeid,
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fslocation=fslocation)
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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 __hash__(self):
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return hash(self.nodeid)
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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 = 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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""" get the next parent node (including ourself)
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which is an instance of the given class"""
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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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tbfilter = True
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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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tbfilter = False # prunetraceback already does it
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if style == "auto":
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style = "long"
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# XXX should excinfo.getrepr record all data and toterminal() 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, tbfilter=tbfilter)
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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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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 __init__(self, name, parent=None, config=None, session=None):
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super(Item, self).__init__(name, parent, config, session)
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self._report_sections = []
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def add_report_section(self, when, key, content):
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if content:
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self._report_sections.append((when, key, content))
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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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self._fs2hookproxy = {}
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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):
|
|
if report.failed and not hasattr(report, 'wasxfail'):
|
|
self._testsfailed += 1
|
|
maxfail = self.config.getvalue("maxfail")
|
|
if maxfail and self._testsfailed >= maxfail:
|
|
self.shouldstop = "stopping after %d failures" % (
|
|
self._testsfailed)
|
|
pytest_collectreport = pytest_runtest_logreport
|
|
|
|
def isinitpath(self, path):
|
|
return path in self._initialpaths
|
|
|
|
def gethookproxy(self, fspath):
|
|
try:
|
|
return self._fs2hookproxy[fspath]
|
|
except KeyError:
|
|
self._fs2hookproxy[fspath] = x = FSHookProxy(fspath, self.config)
|
|
return x
|
|
|
|
def perform_collect(self, args=None, genitems=True):
|
|
hook = self.config.hook
|
|
try:
|
|
items = self._perform_collect(args, genitems)
|
|
hook.pytest_collection_modifyitems(session=self,
|
|
config=self.config, items=items)
|
|
finally:
|
|
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:
|
|
errors = []
|
|
for arg, exc in self._notfound:
|
|
line = "(no name %r in any of %r)" % (arg, exc.args[0])
|
|
errors.append("not found: %s\n%s" % (arg, line))
|
|
#XXX: test this
|
|
raise pytest.UsageError(*errors)
|
|
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
|
|
|
|
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)
|
|
|
|
|