703 lines
24 KiB
Python
703 lines
24 KiB
Python
""" (disabled by default) support for testing pytest and pytest plugins. """
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import inspect
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import sys
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import os
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import codecs
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import re
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import time
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import platform
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from fnmatch import fnmatch
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import subprocess
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import py
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import pytest
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from py.builtin import print_
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from _pytest.core import HookRelay
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from _pytest.main import Session, EXIT_OK
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def get_public_names(l):
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"""Only return names from iterator l without a leading underscore."""
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return [x for x in l if x[0] != "_"]
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def pytest_addoption(parser):
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group = parser.getgroup("pylib")
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group.addoption('--no-tools-on-path',
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action="store_true", dest="notoolsonpath", default=False,
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help=("discover tools on PATH instead of going through py.cmdline.")
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)
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def pytest_configure(config):
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# This might be called multiple times. Only take the first.
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global _pytest_fullpath
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try:
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_pytest_fullpath
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except NameError:
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_pytest_fullpath = os.path.abspath(pytest.__file__.rstrip("oc"))
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_pytest_fullpath = _pytest_fullpath.replace("$py.class", ".py")
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def pytest_funcarg___pytest(request):
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return PytestArg(request)
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class PytestArg:
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def __init__(self, request):
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self.request = request
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def gethookrecorder(self, hook):
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hookrecorder = HookRecorder(hook._pm)
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hookrecorder.start_recording(hook._hookspecs)
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self.request.addfinalizer(hookrecorder.finish_recording)
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return hookrecorder
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class ParsedCall:
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def __init__(self, name, locals):
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assert '_name' not in locals
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self.__dict__.update(locals)
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self.__dict__.pop('self')
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self._name = name
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def __repr__(self):
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d = self.__dict__.copy()
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del d['_name']
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return "<ParsedCall %r(**%r)>" %(self._name, d)
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class HookRecorder:
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def __init__(self, pluginmanager):
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self._pluginmanager = pluginmanager
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self.calls = []
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self._recorders = {}
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def start_recording(self, hookspecs):
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if not isinstance(hookspecs, (list, tuple)):
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hookspecs = [hookspecs]
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for hookspec in hookspecs:
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assert hookspec not in self._recorders
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class RecordCalls:
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_recorder = self
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for name, method in vars(hookspec).items():
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if name[0] != "_":
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setattr(RecordCalls, name, self._makecallparser(method))
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recorder = RecordCalls()
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self._recorders[hookspec] = recorder
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self._pluginmanager.register(recorder)
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self.hook = HookRelay(hookspecs, pm=self._pluginmanager,
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prefix="pytest_")
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def finish_recording(self):
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for recorder in self._recorders.values():
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if self._pluginmanager.isregistered(recorder):
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self._pluginmanager.unregister(recorder)
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self._recorders.clear()
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def _makecallparser(self, method):
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name = method.__name__
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args, varargs, varkw, default = inspect.getargspec(method)
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if not args or args[0] != "self":
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args.insert(0, 'self')
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fspec = inspect.formatargspec(args, varargs, varkw, default)
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# we use exec because we want to have early type
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# errors on wrong input arguments, using
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# *args/**kwargs delays this and gives errors
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# elsewhere
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exec (py.code.compile("""
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def %(name)s%(fspec)s:
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self._recorder.calls.append(
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ParsedCall(%(name)r, locals()))
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""" % locals()))
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return locals()[name]
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def getcalls(self, names):
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if isinstance(names, str):
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names = names.split()
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for name in names:
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for cls in self._recorders:
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if name in vars(cls):
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break
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else:
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raise ValueError("callname %r not found in %r" %(
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name, self._recorders.keys()))
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l = []
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for call in self.calls:
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if call._name in names:
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l.append(call)
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return l
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def contains(self, entries):
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__tracebackhide__ = True
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i = 0
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entries = list(entries)
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backlocals = sys._getframe(1).f_locals
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while entries:
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name, check = entries.pop(0)
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for ind, call in enumerate(self.calls[i:]):
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if call._name == name:
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print_("NAMEMATCH", name, call)
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if eval(check, backlocals, call.__dict__):
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print_("CHECKERMATCH", repr(check), "->", call)
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else:
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print_("NOCHECKERMATCH", repr(check), "-", call)
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continue
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i += ind + 1
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break
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print_("NONAMEMATCH", name, "with", call)
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else:
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pytest.fail("could not find %r check %r" % (name, check))
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def popcall(self, name):
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__tracebackhide__ = True
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for i, call in enumerate(self.calls):
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if call._name == name:
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del self.calls[i]
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return call
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lines = ["could not find call %r, in:" % (name,)]
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lines.extend([" %s" % str(x) for x in self.calls])
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pytest.fail("\n".join(lines))
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def getcall(self, name):
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l = self.getcalls(name)
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assert len(l) == 1, (name, l)
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return l[0]
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def pytest_funcarg__linecomp(request):
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return LineComp()
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def pytest_funcarg__LineMatcher(request):
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return LineMatcher
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def pytest_funcarg__testdir(request):
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tmptestdir = TmpTestdir(request)
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return tmptestdir
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rex_outcome = re.compile("(\d+) (\w+)")
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class RunResult:
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def __init__(self, ret, outlines, errlines, duration):
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self.ret = ret
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self.outlines = outlines
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self.errlines = errlines
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self.stdout = LineMatcher(outlines)
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self.stderr = LineMatcher(errlines)
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self.duration = duration
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def parseoutcomes(self):
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for line in reversed(self.outlines):
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if 'seconds' in line:
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outcomes = rex_outcome.findall(line)
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if outcomes:
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d = {}
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for num, cat in outcomes:
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d[cat] = int(num)
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return d
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class TmpTestdir:
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def __init__(self, request):
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self.request = request
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self.Config = request.config.__class__
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self._pytest = request.getfuncargvalue("_pytest")
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# XXX remove duplication with tmpdir plugin
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basetmp = request.config._tmpdirhandler.ensuretemp("testdir")
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name = request.function.__name__
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for i in range(100):
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try:
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tmpdir = basetmp.mkdir(name + str(i))
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except py.error.EEXIST:
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continue
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break
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self.tmpdir = tmpdir
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self.plugins = []
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self._syspathremove = []
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self.chdir() # always chdir
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self.request.addfinalizer(self.finalize)
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def __repr__(self):
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return "<TmpTestdir %r>" % (self.tmpdir,)
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def finalize(self):
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for p in self._syspathremove:
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sys.path.remove(p)
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if hasattr(self, '_olddir'):
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self._olddir.chdir()
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# delete modules that have been loaded from tmpdir
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for name, mod in list(sys.modules.items()):
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if mod:
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fn = getattr(mod, '__file__', None)
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if fn and fn.startswith(str(self.tmpdir)):
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del sys.modules[name]
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def getreportrecorder(self, obj):
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if hasattr(obj, 'config'):
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obj = obj.config
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if hasattr(obj, 'hook'):
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obj = obj.hook
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assert hasattr(obj, '_hookspecs'), obj
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reprec = ReportRecorder(obj)
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reprec.hookrecorder = self._pytest.gethookrecorder(obj)
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reprec.hook = reprec.hookrecorder.hook
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return reprec
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def chdir(self):
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old = self.tmpdir.chdir()
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if not hasattr(self, '_olddir'):
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self._olddir = old
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def _makefile(self, ext, args, kwargs):
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items = list(kwargs.items())
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if args:
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source = py.builtin._totext("\n").join(
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map(py.builtin._totext, args)) + py.builtin._totext("\n")
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basename = self.request.function.__name__
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items.insert(0, (basename, source))
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ret = None
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for name, value in items:
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p = self.tmpdir.join(name).new(ext=ext)
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source = py.code.Source(value)
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def my_totext(s, encoding="utf-8"):
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if py.builtin._isbytes(s):
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s = py.builtin._totext(s, encoding=encoding)
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return s
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source_unicode = "\n".join([my_totext(line) for line in source.lines])
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source = py.builtin._totext(source_unicode)
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content = source.strip().encode("utf-8") # + "\n"
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#content = content.rstrip() + "\n"
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p.write(content, "wb")
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if ret is None:
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ret = p
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return ret
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def makefile(self, ext, *args, **kwargs):
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return self._makefile(ext, args, kwargs)
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def makeconftest(self, source):
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return self.makepyfile(conftest=source)
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def makeini(self, source):
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return self.makefile('.ini', tox=source)
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def getinicfg(self, source):
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p = self.makeini(source)
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return py.iniconfig.IniConfig(p)['pytest']
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def makepyfile(self, *args, **kwargs):
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return self._makefile('.py', args, kwargs)
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def maketxtfile(self, *args, **kwargs):
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return self._makefile('.txt', args, kwargs)
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def syspathinsert(self, path=None):
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if path is None:
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path = self.tmpdir
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sys.path.insert(0, str(path))
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self._syspathremove.append(str(path))
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def mkdir(self, name):
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return self.tmpdir.mkdir(name)
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def mkpydir(self, name):
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p = self.mkdir(name)
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p.ensure("__init__.py")
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return p
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Session = Session
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def getnode(self, config, arg):
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session = Session(config)
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assert '::' not in str(arg)
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p = py.path.local(arg)
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x = session.fspath.bestrelpath(p)
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config.hook.pytest_sessionstart(session=session)
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res = session.perform_collect([x], genitems=False)[0]
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config.hook.pytest_sessionfinish(session=session, exitstatus=EXIT_OK)
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return res
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def getpathnode(self, path):
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config = self.parseconfigure(path)
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session = Session(config)
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x = session.fspath.bestrelpath(path)
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config.hook.pytest_sessionstart(session=session)
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res = session.perform_collect([x], genitems=False)[0]
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config.hook.pytest_sessionfinish(session=session, exitstatus=EXIT_OK)
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return res
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def genitems(self, colitems):
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session = colitems[0].session
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result = []
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for colitem in colitems:
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result.extend(session.genitems(colitem))
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return result
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def runitem(self, source):
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# used from runner functional tests
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item = self.getitem(source)
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# the test class where we are called from wants to provide the runner
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testclassinstance = self.request.instance
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runner = testclassinstance.getrunner()
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return runner(item)
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def inline_runsource(self, source, *cmdlineargs):
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p = self.makepyfile(source)
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l = list(cmdlineargs) + [p]
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return self.inline_run(*l)
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def inline_runsource1(self, *args):
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args = list(args)
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source = args.pop()
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p = self.makepyfile(source)
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l = list(args) + [p]
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reprec = self.inline_run(*l)
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reports = reprec.getreports("pytest_runtest_logreport")
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assert len(reports) == 3, reports # setup/call/teardown
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return reports[1]
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def inline_genitems(self, *args):
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return self.inprocess_run(list(args) + ['--collectonly'])
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def inline_run(self, *args):
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items, rec = self.inprocess_run(args)
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return rec
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def inprocess_run(self, args, plugins=None):
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rec = []
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items = []
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class Collect:
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def pytest_configure(x, config):
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rec.append(self.getreportrecorder(config))
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def pytest_itemcollected(self, item):
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items.append(item)
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if not plugins:
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plugins = []
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plugins.append(Collect())
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ret = pytest.main(list(args), plugins=plugins)
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reprec = rec[0]
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reprec.ret = ret
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assert len(rec) == 1
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return items, reprec
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def parseconfig(self, *args):
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args = [str(x) for x in args]
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for x in args:
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if str(x).startswith('--basetemp'):
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break
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else:
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args.append("--basetemp=%s" % self.tmpdir.dirpath('basetemp'))
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import _pytest.config
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config = _pytest.config._prepareconfig(args, self.plugins)
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# we don't know what the test will do with this half-setup config
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# object and thus we make sure it gets unconfigured properly in any
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# case (otherwise capturing could still be active, for example)
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def ensure_unconfigure():
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if hasattr(config.pluginmanager, "_config"):
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config.pluginmanager.do_unconfigure(config)
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config.pluginmanager.ensure_shutdown()
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self.request.addfinalizer(ensure_unconfigure)
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return config
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def parseconfigure(self, *args):
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config = self.parseconfig(*args)
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config.do_configure()
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self.request.addfinalizer(lambda:
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config.do_unconfigure())
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return config
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def getitem(self, source, funcname="test_func"):
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items = self.getitems(source)
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for item in items:
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if item.name == funcname:
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return item
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assert 0, "%r item not found in module:\n%s\nitems: %s" %(
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funcname, source, items)
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def getitems(self, source):
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modcol = self.getmodulecol(source)
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return self.genitems([modcol])
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def getmodulecol(self, source, configargs=(), withinit=False):
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kw = {self.request.function.__name__: py.code.Source(source).strip()}
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path = self.makepyfile(**kw)
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if withinit:
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self.makepyfile(__init__ = "#")
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self.config = config = self.parseconfigure(path, *configargs)
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node = self.getnode(config, path)
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return node
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def collect_by_name(self, modcol, name):
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for colitem in modcol._memocollect():
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if colitem.name == name:
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return colitem
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def popen(self, cmdargs, stdout, stderr, **kw):
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env = os.environ.copy()
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env['PYTHONPATH'] = os.pathsep.join(filter(None, [
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str(os.getcwd()), env.get('PYTHONPATH', '')]))
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kw['env'] = env
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return subprocess.Popen(cmdargs,
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stdout=stdout, stderr=stderr, **kw)
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def run(self, *cmdargs):
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return self._run(*cmdargs)
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def _run(self, *cmdargs):
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cmdargs = [str(x) for x in cmdargs]
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p1 = self.tmpdir.join("stdout")
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p2 = self.tmpdir.join("stderr")
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print_("running", cmdargs, "curdir=", py.path.local())
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f1 = codecs.open(str(p1), "w", encoding="utf8")
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f2 = codecs.open(str(p2), "w", encoding="utf8")
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try:
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now = time.time()
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popen = self.popen(cmdargs, stdout=f1, stderr=f2,
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close_fds=(sys.platform != "win32"))
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ret = popen.wait()
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finally:
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f1.close()
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f2.close()
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f1 = codecs.open(str(p1), "r", encoding="utf8")
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f2 = codecs.open(str(p2), "r", encoding="utf8")
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try:
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out = f1.read().splitlines()
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err = f2.read().splitlines()
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finally:
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f1.close()
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f2.close()
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self._dump_lines(out, sys.stdout)
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self._dump_lines(err, sys.stderr)
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return RunResult(ret, out, err, time.time()-now)
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def _dump_lines(self, lines, fp):
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try:
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for line in lines:
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py.builtin.print_(line, file=fp)
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except UnicodeEncodeError:
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print("couldn't print to %s because of encoding" % (fp,))
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def runpybin(self, scriptname, *args):
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fullargs = self._getpybinargs(scriptname) + args
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return self.run(*fullargs)
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def _getpybinargs(self, scriptname):
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if not self.request.config.getvalue("notoolsonpath"):
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# XXX we rely on script referring to the correct environment
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# we cannot use "(sys.executable,script)"
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# because on windows the script is e.g. a py.test.exe
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return (sys.executable, _pytest_fullpath,) # noqa
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else:
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pytest.skip("cannot run %r with --no-tools-on-path" % scriptname)
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def runpython(self, script, prepend=True):
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if prepend:
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s = self._getsysprepend()
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if s:
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script.write(s + "\n" + script.read())
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return self.run(sys.executable, script)
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def _getsysprepend(self):
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if self.request.config.getvalue("notoolsonpath"):
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s = "import sys;sys.path.insert(0,%r);" % str(py._pydir.dirpath())
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else:
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s = ""
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return s
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def runpython_c(self, command):
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command = self._getsysprepend() + command
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return self.run(sys.executable, "-c", command)
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def runpytest(self, *args):
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p = py.path.local.make_numbered_dir(prefix="runpytest-",
|
|
keep=None, rootdir=self.tmpdir)
|
|
args = ('--basetemp=%s' % p, ) + args
|
|
#for x in args:
|
|
# if '--confcutdir' in str(x):
|
|
# break
|
|
#else:
|
|
# pass
|
|
# args = ('--confcutdir=.',) + args
|
|
plugins = [x for x in self.plugins if isinstance(x, str)]
|
|
if plugins:
|
|
args = ('-p', plugins[0]) + args
|
|
return self.runpybin("py.test", *args)
|
|
|
|
def spawn_pytest(self, string, expect_timeout=10.0):
|
|
if self.request.config.getvalue("notoolsonpath"):
|
|
pytest.skip("--no-tools-on-path prevents running pexpect-spawn tests")
|
|
basetemp = self.tmpdir.mkdir("pexpect")
|
|
invoke = " ".join(map(str, self._getpybinargs("py.test")))
|
|
cmd = "%s --basetemp=%s %s" % (invoke, basetemp, string)
|
|
return self.spawn(cmd, expect_timeout=expect_timeout)
|
|
|
|
def spawn(self, cmd, expect_timeout=10.0):
|
|
pexpect = pytest.importorskip("pexpect", "3.0")
|
|
if hasattr(sys, 'pypy_version_info') and '64' in platform.machine():
|
|
pytest.skip("pypy-64 bit not supported")
|
|
if sys.platform == "darwin":
|
|
pytest.xfail("pexpect does not work reliably on darwin?!")
|
|
if sys.platform.startswith("freebsd"):
|
|
pytest.xfail("pexpect does not work reliably on freebsd")
|
|
logfile = self.tmpdir.join("spawn.out").open("wb")
|
|
child = pexpect.spawn(cmd, logfile=logfile)
|
|
self.request.addfinalizer(logfile.close)
|
|
child.timeout = expect_timeout
|
|
return child
|
|
|
|
def getdecoded(out):
|
|
try:
|
|
return out.decode("utf-8")
|
|
except UnicodeDecodeError:
|
|
return "INTERNAL not-utf8-decodeable, truncated string:\n%s" % (
|
|
py.io.saferepr(out),)
|
|
|
|
class ReportRecorder(object):
|
|
def __init__(self, hook):
|
|
self.hook = hook
|
|
self.pluginmanager = hook._pm
|
|
self.pluginmanager.register(self)
|
|
|
|
def getcall(self, name):
|
|
return self.hookrecorder.getcall(name)
|
|
|
|
def popcall(self, name):
|
|
return self.hookrecorder.popcall(name)
|
|
|
|
def getcalls(self, names):
|
|
""" return list of ParsedCall instances matching the given eventname. """
|
|
return self.hookrecorder.getcalls(names)
|
|
|
|
# functionality for test reports
|
|
|
|
def getreports(self, names="pytest_runtest_logreport pytest_collectreport"):
|
|
return [x.report for x in self.getcalls(names)]
|
|
|
|
def matchreport(self, inamepart="",
|
|
names="pytest_runtest_logreport pytest_collectreport", when=None):
|
|
""" return a testreport whose dotted import path matches """
|
|
l = []
|
|
for rep in self.getreports(names=names):
|
|
try:
|
|
if not when and rep.when != "call" and rep.passed:
|
|
# setup/teardown passing reports - let's ignore those
|
|
continue
|
|
except AttributeError:
|
|
pass
|
|
if when and getattr(rep, 'when', None) != when:
|
|
continue
|
|
if not inamepart or inamepart in rep.nodeid.split("::"):
|
|
l.append(rep)
|
|
if not l:
|
|
raise ValueError("could not find test report matching %r: no test reports at all!" %
|
|
(inamepart,))
|
|
if len(l) > 1:
|
|
raise ValueError("found more than one testreport matching %r: %s" %(
|
|
inamepart, l))
|
|
return l[0]
|
|
|
|
def getfailures(self, names='pytest_runtest_logreport pytest_collectreport'):
|
|
return [rep for rep in self.getreports(names) if rep.failed]
|
|
|
|
def getfailedcollections(self):
|
|
return self.getfailures('pytest_collectreport')
|
|
|
|
def listoutcomes(self):
|
|
passed = []
|
|
skipped = []
|
|
failed = []
|
|
for rep in self.getreports(
|
|
"pytest_collectreport pytest_runtest_logreport"):
|
|
if rep.passed:
|
|
if getattr(rep, "when", None) == "call":
|
|
passed.append(rep)
|
|
elif rep.skipped:
|
|
skipped.append(rep)
|
|
elif rep.failed:
|
|
failed.append(rep)
|
|
return passed, skipped, failed
|
|
|
|
def countoutcomes(self):
|
|
return [len(x) for x in self.listoutcomes()]
|
|
|
|
def assertoutcome(self, passed=0, skipped=0, failed=0):
|
|
realpassed, realskipped, realfailed = self.listoutcomes()
|
|
assert passed == len(realpassed)
|
|
assert skipped == len(realskipped)
|
|
assert failed == len(realfailed)
|
|
|
|
def clear(self):
|
|
self.hookrecorder.calls[:] = []
|
|
|
|
def unregister(self):
|
|
self.pluginmanager.unregister(self)
|
|
self.hookrecorder.finish_recording()
|
|
|
|
class LineComp:
|
|
def __init__(self):
|
|
self.stringio = py.io.TextIO()
|
|
|
|
def assert_contains_lines(self, lines2):
|
|
""" assert that lines2 are contained (linearly) in lines1.
|
|
return a list of extralines found.
|
|
"""
|
|
__tracebackhide__ = True
|
|
val = self.stringio.getvalue()
|
|
self.stringio.truncate(0)
|
|
self.stringio.seek(0)
|
|
lines1 = val.split("\n")
|
|
return LineMatcher(lines1).fnmatch_lines(lines2)
|
|
|
|
class LineMatcher:
|
|
def __init__(self, lines):
|
|
self.lines = lines
|
|
|
|
def str(self):
|
|
return "\n".join(self.lines)
|
|
|
|
def _getlines(self, lines2):
|
|
if isinstance(lines2, str):
|
|
lines2 = py.code.Source(lines2)
|
|
if isinstance(lines2, py.code.Source):
|
|
lines2 = lines2.strip().lines
|
|
return lines2
|
|
|
|
def fnmatch_lines_random(self, lines2):
|
|
lines2 = self._getlines(lines2)
|
|
for line in lines2:
|
|
for x in self.lines:
|
|
if line == x or fnmatch(x, line):
|
|
print_("matched: ", repr(line))
|
|
break
|
|
else:
|
|
raise ValueError("line %r not found in output" % line)
|
|
|
|
def get_lines_after(self, fnline):
|
|
for i, line in enumerate(self.lines):
|
|
if fnline == line or fnmatch(line, fnline):
|
|
return self.lines[i+1:]
|
|
raise ValueError("line %r not found in output" % fnline)
|
|
|
|
def fnmatch_lines(self, lines2):
|
|
def show(arg1, arg2):
|
|
py.builtin.print_(arg1, arg2, file=sys.stderr)
|
|
lines2 = self._getlines(lines2)
|
|
lines1 = self.lines[:]
|
|
nextline = None
|
|
extralines = []
|
|
__tracebackhide__ = True
|
|
for line in lines2:
|
|
nomatchprinted = False
|
|
while lines1:
|
|
nextline = lines1.pop(0)
|
|
if line == nextline:
|
|
show("exact match:", repr(line))
|
|
break
|
|
elif fnmatch(nextline, line):
|
|
show("fnmatch:", repr(line))
|
|
show(" with:", repr(nextline))
|
|
break
|
|
else:
|
|
if not nomatchprinted:
|
|
show("nomatch:", repr(line))
|
|
nomatchprinted = True
|
|
show(" and:", repr(nextline))
|
|
extralines.append(nextline)
|
|
else:
|
|
pytest.fail("remains unmatched: %r, see stderr" % (line,))
|