initial code import for capture transfer
This commit is contained in:
Ronny Pfannschmidt
parent
c142f2551d
commit
0ac94134f5
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@ -1,17 +1,24 @@
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""" per-test stdout/stderr capturing mechanisms, ``capsys`` and ``capfd`` function arguments. """
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import pytest, py
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"""
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per-test stdout/stderr capturing mechanisms,
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``capsys`` and ``capfd`` function arguments.
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"""
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import sys
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import os
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import py
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import pytest
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def pytest_addoption(parser):
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group = parser.getgroup("general")
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group._addoption('--capture', action="store", default=None,
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group._addoption(
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'--capture', action="store", default=None,
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metavar="method", choices=['fd', 'sys', 'no'],
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help="per-test capturing method: one of fd (default)|sys|no.")
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group._addoption('-s', action="store_const", const="no", dest="capture",
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group._addoption(
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'-s', action="store_const", const="no", dest="capture",
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help="shortcut for --capture=no.")
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@pytest.mark.tryfirst
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def pytest_load_initial_conftests(early_config, parser, args, __multicall__):
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ns = parser.parse_known_args(args)
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@ -246,3 +253,374 @@ class CaptureFixture:
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def close(self):
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self._finalize()
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import os
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import sys
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import py
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import tempfile
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try:
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from io import StringIO
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except ImportError:
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from StringIO import StringIO
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if sys.version_info < (3,0):
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class TextIO(StringIO):
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def write(self, data):
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if not isinstance(data, unicode):
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data = unicode(data, getattr(self, '_encoding', 'UTF-8'), 'replace')
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StringIO.write(self, data)
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else:
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TextIO = StringIO
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try:
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from io import BytesIO
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except ImportError:
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class BytesIO(StringIO):
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def write(self, data):
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if isinstance(data, unicode):
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raise TypeError("not a byte value: %r" %(data,))
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StringIO.write(self, data)
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patchsysdict = {0: 'stdin', 1: 'stdout', 2: 'stderr'}
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class FDCapture:
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""" Capture IO to/from a given os-level filedescriptor. """
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def __init__(self, targetfd, tmpfile=None, now=True, patchsys=False):
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""" save targetfd descriptor, and open a new
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temporary file there. If no tmpfile is
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specified a tempfile.Tempfile() will be opened
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in text mode.
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"""
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self.targetfd = targetfd
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if tmpfile is None and targetfd != 0:
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f = tempfile.TemporaryFile('wb+')
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tmpfile = dupfile(f, encoding="UTF-8")
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f.close()
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self.tmpfile = tmpfile
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self._savefd = os.dup(self.targetfd)
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if patchsys:
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self._oldsys = getattr(sys, patchsysdict[targetfd])
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if now:
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self.start()
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def start(self):
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try:
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os.fstat(self._savefd)
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except OSError:
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raise ValueError("saved filedescriptor not valid, "
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"did you call start() twice?")
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if self.targetfd == 0 and not self.tmpfile:
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fd = os.open(devnullpath, os.O_RDONLY)
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os.dup2(fd, 0)
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os.close(fd)
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if hasattr(self, '_oldsys'):
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setattr(sys, patchsysdict[self.targetfd], DontReadFromInput())
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else:
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os.dup2(self.tmpfile.fileno(), self.targetfd)
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if hasattr(self, '_oldsys'):
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setattr(sys, patchsysdict[self.targetfd], self.tmpfile)
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def done(self):
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""" unpatch and clean up, returns the self.tmpfile (file object)
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"""
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os.dup2(self._savefd, self.targetfd)
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os.close(self._savefd)
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if self.targetfd != 0:
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self.tmpfile.seek(0)
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if hasattr(self, '_oldsys'):
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setattr(sys, patchsysdict[self.targetfd], self._oldsys)
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return self.tmpfile
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def writeorg(self, data):
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""" write a string to the original file descriptor
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"""
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tempfp = tempfile.TemporaryFile()
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try:
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os.dup2(self._savefd, tempfp.fileno())
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tempfp.write(data)
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finally:
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tempfp.close()
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def dupfile(f, mode=None, buffering=0, raising=False, encoding=None):
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""" return a new open file object that's a duplicate of f
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mode is duplicated if not given, 'buffering' controls
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buffer size (defaulting to no buffering) and 'raising'
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defines whether an exception is raised when an incompatible
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file object is passed in (if raising is False, the file
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object itself will be returned)
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"""
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try:
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fd = f.fileno()
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mode = mode or f.mode
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except AttributeError:
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if raising:
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raise
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return f
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newfd = os.dup(fd)
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if sys.version_info >= (3,0):
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if encoding is not None:
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mode = mode.replace("b", "")
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buffering = True
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return os.fdopen(newfd, mode, buffering, encoding, closefd=True)
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else:
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f = os.fdopen(newfd, mode, buffering)
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if encoding is not None:
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return EncodedFile(f, encoding)
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return f
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class EncodedFile(object):
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def __init__(self, _stream, encoding):
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self._stream = _stream
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self.encoding = encoding
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def write(self, obj):
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if isinstance(obj, unicode):
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obj = obj.encode(self.encoding)
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elif isinstance(obj, str):
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pass
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else:
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obj = str(obj)
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self._stream.write(obj)
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def writelines(self, linelist):
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data = ''.join(linelist)
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self.write(data)
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def __getattr__(self, name):
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return getattr(self._stream, name)
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class Capture(object):
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def call(cls, func, *args, **kwargs):
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""" return a (res, out, err) tuple where
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out and err represent the output/error output
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during function execution.
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call the given function with args/kwargs
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and capture output/error during its execution.
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"""
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so = cls()
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try:
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res = func(*args, **kwargs)
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finally:
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out, err = so.reset()
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return res, out, err
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call = classmethod(call)
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def reset(self):
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""" reset sys.stdout/stderr and return captured output as strings. """
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if hasattr(self, '_reset'):
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raise ValueError("was already reset")
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self._reset = True
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outfile, errfile = self.done(save=False)
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out, err = "", ""
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if outfile and not outfile.closed:
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out = outfile.read()
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outfile.close()
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if errfile and errfile != outfile and not errfile.closed:
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err = errfile.read()
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errfile.close()
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return out, err
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def suspend(self):
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""" return current snapshot captures, memorize tempfiles. """
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outerr = self.readouterr()
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outfile, errfile = self.done()
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return outerr
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class StdCaptureFD(Capture):
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""" This class allows to capture writes to FD1 and FD2
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and may connect a NULL file to FD0 (and prevent
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reads from sys.stdin). If any of the 0,1,2 file descriptors
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is invalid it will not be captured.
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"""
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def __init__(self, out=True, err=True, mixed=False,
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in_=True, patchsys=True, now=True):
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self._options = {
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"out": out,
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"err": err,
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"mixed": mixed,
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"in_": in_,
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"patchsys": patchsys,
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"now": now,
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}
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self._save()
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if now:
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self.startall()
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def _save(self):
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in_ = self._options['in_']
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out = self._options['out']
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err = self._options['err']
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mixed = self._options['mixed']
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patchsys = self._options['patchsys']
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if in_:
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try:
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self.in_ = FDCapture(0, tmpfile=None, now=False,
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patchsys=patchsys)
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except OSError:
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pass
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if out:
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tmpfile = None
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if hasattr(out, 'write'):
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tmpfile = out
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try:
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self.out = FDCapture(1, tmpfile=tmpfile,
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now=False, patchsys=patchsys)
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self._options['out'] = self.out.tmpfile
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except OSError:
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pass
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if err:
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if out and mixed:
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tmpfile = self.out.tmpfile
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elif hasattr(err, 'write'):
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tmpfile = err
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else:
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tmpfile = None
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try:
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self.err = FDCapture(2, tmpfile=tmpfile,
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now=False, patchsys=patchsys)
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self._options['err'] = self.err.tmpfile
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except OSError:
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pass
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def startall(self):
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if hasattr(self, 'in_'):
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self.in_.start()
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if hasattr(self, 'out'):
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self.out.start()
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if hasattr(self, 'err'):
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self.err.start()
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def resume(self):
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""" resume capturing with original temp files. """
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self.startall()
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def done(self, save=True):
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""" return (outfile, errfile) and stop capturing. """
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outfile = errfile = None
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if hasattr(self, 'out') and not self.out.tmpfile.closed:
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outfile = self.out.done()
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if hasattr(self, 'err') and not self.err.tmpfile.closed:
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errfile = self.err.done()
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if hasattr(self, 'in_'):
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tmpfile = self.in_.done()
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if save:
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self._save()
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return outfile, errfile
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def readouterr(self):
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""" return snapshot value of stdout/stderr capturings. """
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if hasattr(self, "out"):
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out = self._readsnapshot(self.out.tmpfile)
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else:
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out = ""
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if hasattr(self, "err"):
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err = self._readsnapshot(self.err.tmpfile)
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else:
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err = ""
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return [out, err]
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def _readsnapshot(self, f):
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f.seek(0)
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res = f.read()
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enc = getattr(f, "encoding", None)
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if enc:
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res = py.builtin._totext(res, enc, "replace")
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f.truncate(0)
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f.seek(0)
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return res
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class StdCapture(Capture):
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""" This class allows to capture writes to sys.stdout|stderr "in-memory"
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and will raise errors on tries to read from sys.stdin. It only
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modifies sys.stdout|stderr|stdin attributes and does not
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touch underlying File Descriptors (use StdCaptureFD for that).
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"""
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def __init__(self, out=True, err=True, in_=True, mixed=False, now=True):
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self._oldout = sys.stdout
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self._olderr = sys.stderr
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self._oldin = sys.stdin
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if out and not hasattr(out, 'file'):
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out = TextIO()
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self.out = out
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if err:
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if mixed:
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err = out
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elif not hasattr(err, 'write'):
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err = TextIO()
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self.err = err
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self.in_ = in_
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if now:
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self.startall()
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def startall(self):
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if self.out:
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sys.stdout = self.out
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if self.err:
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sys.stderr = self.err
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if self.in_:
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sys.stdin = self.in_ = DontReadFromInput()
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def done(self, save=True):
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""" return (outfile, errfile) and stop capturing. """
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outfile = errfile = None
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if self.out and not self.out.closed:
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sys.stdout = self._oldout
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outfile = self.out
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outfile.seek(0)
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if self.err and not self.err.closed:
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sys.stderr = self._olderr
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errfile = self.err
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errfile.seek(0)
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if self.in_:
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sys.stdin = self._oldin
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return outfile, errfile
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def resume(self):
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""" resume capturing with original temp files. """
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self.startall()
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def readouterr(self):
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""" return snapshot value of stdout/stderr capturings. """
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out = err = ""
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if self.out:
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out = self.out.getvalue()
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self.out.truncate(0)
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self.out.seek(0)
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if self.err:
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err = self.err.getvalue()
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self.err.truncate(0)
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self.err.seek(0)
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return out, err
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class DontReadFromInput:
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"""Temporary stub class. Ideally when stdin is accessed, the
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capturing should be turned off, with possibly all data captured
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so far sent to the screen. This should be configurable, though,
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because in automated test runs it is better to crash than
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hang indefinitely.
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"""
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def read(self, *args):
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raise IOError("reading from stdin while output is captured")
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readline = read
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readlines = read
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__iter__ = read
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def fileno(self):
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raise ValueError("redirected Stdin is pseudofile, has no fileno()")
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def isatty(self):
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return False
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def close(self):
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pass
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try:
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devnullpath = os.devnull
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except AttributeError:
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if os.name == 'nt':
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devnullpath = 'NUL'
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else:
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devnullpath = '/dev/null'
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@ -1,4 +1,9 @@
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import pytest, py, os, sys
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from __future__ import with_statement
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import os
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import sys
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import py
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import pytest
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from _pytest.capture import CaptureManager
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needsosdup = pytest.mark.xfail("not hasattr(os, 'dup')")
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@ -496,7 +501,7 @@ def test_capture_early_option_parsing(testdir):
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@pytest.mark.xfail(sys.version_info >= (3, 0), reason='encoding issues')
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def test_capture_binary_output(testdir):
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testdir.makepyfile("""
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testdir.makepyfile(r"""
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import pytest
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def test_a():
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@ -516,3 +521,503 @@ def test_capture_binary_output(testdir):
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'*2 passed*',
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])
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import os, sys
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import py
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needsdup = py.test.mark.skipif("not hasattr(os, 'dup')")
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from py.builtin import print_
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if sys.version_info >= (3,0):
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def tobytes(obj):
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if isinstance(obj, str):
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obj = obj.encode('UTF-8')
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assert isinstance(obj, bytes)
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return obj
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def totext(obj):
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if isinstance(obj, bytes):
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obj = str(obj, 'UTF-8')
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assert isinstance(obj, str)
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return obj
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else:
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def tobytes(obj):
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if isinstance(obj, unicode):
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obj = obj.encode('UTF-8')
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assert isinstance(obj, str)
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return obj
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def totext(obj):
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if isinstance(obj, str):
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obj = unicode(obj, 'UTF-8')
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assert isinstance(obj, unicode)
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return obj
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def oswritebytes(fd, obj):
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os.write(fd, tobytes(obj))
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class TestTextIO:
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def test_text(self):
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f = py.io.TextIO()
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f.write("hello")
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s = f.getvalue()
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assert s == "hello"
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f.close()
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def test_unicode_and_str_mixture(self):
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f = py.io.TextIO()
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if sys.version_info >= (3,0):
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f.write("\u00f6")
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py.test.raises(TypeError, "f.write(bytes('hello', 'UTF-8'))")
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else:
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f.write(unicode("\u00f6", 'UTF-8'))
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f.write("hello") # bytes
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s = f.getvalue()
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f.close()
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assert isinstance(s, unicode)
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def test_bytes_io():
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f = py.io.BytesIO()
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f.write(tobytes("hello"))
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py.test.raises(TypeError, "f.write(totext('hello'))")
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s = f.getvalue()
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assert s == tobytes("hello")
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def test_dontreadfrominput():
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from py._io.capture import DontReadFromInput
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f = DontReadFromInput()
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assert not f.isatty()
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py.test.raises(IOError, f.read)
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py.test.raises(IOError, f.readlines)
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py.test.raises(IOError, iter, f)
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py.test.raises(ValueError, f.fileno)
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f.close() # just for completeness
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def pytest_funcarg__tmpfile(request):
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testdir = request.getfuncargvalue("testdir")
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||||
f = testdir.makepyfile("").open('wb+')
|
||||
request.addfinalizer(f.close)
|
||||
return f
|
||||
|
||||
@needsdup
|
||||
def test_dupfile(tmpfile):
|
||||
flist = []
|
||||
for i in range(5):
|
||||
nf = py.io.dupfile(tmpfile, encoding="utf-8")
|
||||
assert nf != tmpfile
|
||||
assert nf.fileno() != tmpfile.fileno()
|
||||
assert nf not in flist
|
||||
print_(i, end="", file=nf)
|
||||
flist.append(nf)
|
||||
for i in range(5):
|
||||
f = flist[i]
|
||||
f.close()
|
||||
tmpfile.seek(0)
|
||||
s = tmpfile.read()
|
||||
assert "01234" in repr(s)
|
||||
tmpfile.close()
|
||||
|
||||
def test_dupfile_no_mode():
|
||||
"""
|
||||
dupfile should trap an AttributeError and return f if no mode is supplied.
|
||||
"""
|
||||
class SomeFileWrapper(object):
|
||||
"An object with a fileno method but no mode attribute"
|
||||
def fileno(self):
|
||||
return 1
|
||||
tmpfile = SomeFileWrapper()
|
||||
assert py.io.dupfile(tmpfile) is tmpfile
|
||||
with py.test.raises(AttributeError):
|
||||
py.io.dupfile(tmpfile, raising=True)
|
||||
|
||||
def lsof_check(func):
|
||||
pid = os.getpid()
|
||||
try:
|
||||
out = py.process.cmdexec("lsof -p %d" % pid)
|
||||
except py.process.cmdexec.Error:
|
||||
py.test.skip("could not run 'lsof'")
|
||||
func()
|
||||
out2 = py.process.cmdexec("lsof -p %d" % pid)
|
||||
len1 = len([x for x in out.split("\n") if "REG" in x])
|
||||
len2 = len([x for x in out2.split("\n") if "REG" in x])
|
||||
assert len2 < len1 + 3, out2
|
||||
|
||||
class TestFDCapture:
|
||||
pytestmark = needsdup
|
||||
|
||||
def test_not_now(self, tmpfile):
|
||||
fd = tmpfile.fileno()
|
||||
cap = py.io.FDCapture(fd, now=False)
|
||||
data = tobytes("hello")
|
||||
os.write(fd, data)
|
||||
f = cap.done()
|
||||
s = f.read()
|
||||
assert not s
|
||||
cap = py.io.FDCapture(fd, now=False)
|
||||
cap.start()
|
||||
os.write(fd, data)
|
||||
f = cap.done()
|
||||
s = f.read()
|
||||
assert s == "hello"
|
||||
|
||||
def test_simple(self, tmpfile):
|
||||
fd = tmpfile.fileno()
|
||||
cap = py.io.FDCapture(fd)
|
||||
data = tobytes("hello")
|
||||
os.write(fd, data)
|
||||
f = cap.done()
|
||||
s = f.read()
|
||||
assert s == "hello"
|
||||
f.close()
|
||||
|
||||
def test_simple_many(self, tmpfile):
|
||||
for i in range(10):
|
||||
self.test_simple(tmpfile)
|
||||
|
||||
def test_simple_many_check_open_files(self, tmpfile):
|
||||
lsof_check(lambda: self.test_simple_many(tmpfile))
|
||||
|
||||
def test_simple_fail_second_start(self, tmpfile):
|
||||
fd = tmpfile.fileno()
|
||||
cap = py.io.FDCapture(fd)
|
||||
f = cap.done()
|
||||
py.test.raises(ValueError, cap.start)
|
||||
f.close()
|
||||
|
||||
def test_stderr(self):
|
||||
cap = py.io.FDCapture(2, patchsys=True)
|
||||
print_("hello", file=sys.stderr)
|
||||
f = cap.done()
|
||||
s = f.read()
|
||||
assert s == "hello\n"
|
||||
|
||||
def test_stdin(self, tmpfile):
|
||||
tmpfile.write(tobytes("3"))
|
||||
tmpfile.seek(0)
|
||||
cap = py.io.FDCapture(0, tmpfile=tmpfile)
|
||||
# check with os.read() directly instead of raw_input(), because
|
||||
# sys.stdin itself may be redirected (as py.test now does by default)
|
||||
x = os.read(0, 100).strip()
|
||||
f = cap.done()
|
||||
assert x == tobytes("3")
|
||||
|
||||
def test_writeorg(self, tmpfile):
|
||||
data1, data2 = tobytes("foo"), tobytes("bar")
|
||||
try:
|
||||
cap = py.io.FDCapture(tmpfile.fileno())
|
||||
tmpfile.write(data1)
|
||||
cap.writeorg(data2)
|
||||
finally:
|
||||
tmpfile.close()
|
||||
f = cap.done()
|
||||
scap = f.read()
|
||||
assert scap == totext(data1)
|
||||
stmp = open(tmpfile.name, 'rb').read()
|
||||
assert stmp == data2
|
||||
|
||||
|
||||
class TestStdCapture:
|
||||
def getcapture(self, **kw):
|
||||
return py.io.StdCapture(**kw)
|
||||
|
||||
def test_capturing_done_simple(self):
|
||||
cap = self.getcapture()
|
||||
sys.stdout.write("hello")
|
||||
sys.stderr.write("world")
|
||||
outfile, errfile = cap.done()
|
||||
s = outfile.read()
|
||||
assert s == "hello"
|
||||
s = errfile.read()
|
||||
assert s == "world"
|
||||
|
||||
def test_capturing_reset_simple(self):
|
||||
cap = self.getcapture()
|
||||
print("hello world")
|
||||
sys.stderr.write("hello error\n")
|
||||
out, err = cap.reset()
|
||||
assert out == "hello world\n"
|
||||
assert err == "hello error\n"
|
||||
|
||||
def test_capturing_readouterr(self):
|
||||
cap = self.getcapture()
|
||||
try:
|
||||
print ("hello world")
|
||||
sys.stderr.write("hello error\n")
|
||||
out, err = cap.readouterr()
|
||||
assert out == "hello world\n"
|
||||
assert err == "hello error\n"
|
||||
sys.stderr.write("error2")
|
||||
finally:
|
||||
out, err = cap.reset()
|
||||
assert err == "error2"
|
||||
|
||||
def test_capturing_readouterr_unicode(self):
|
||||
cap = self.getcapture()
|
||||
print ("hx\xc4\x85\xc4\x87")
|
||||
out, err = cap.readouterr()
|
||||
assert out == py.builtin._totext("hx\xc4\x85\xc4\x87\n", "utf8")
|
||||
|
||||
@py.test.mark.skipif('sys.version_info >= (3,)',
|
||||
reason='text output different for bytes on python3')
|
||||
def test_capturing_readouterr_decode_error_handling(self):
|
||||
cap = self.getcapture()
|
||||
# triggered a internal error in pytest
|
||||
print('\xa6')
|
||||
out, err = cap.readouterr()
|
||||
assert out == py.builtin._totext('\ufffd\n', 'unicode-escape')
|
||||
|
||||
def test_capturing_mixed(self):
|
||||
cap = self.getcapture(mixed=True)
|
||||
sys.stdout.write("hello ")
|
||||
sys.stderr.write("world")
|
||||
sys.stdout.write(".")
|
||||
out, err = cap.reset()
|
||||
assert out.strip() == "hello world."
|
||||
assert not err
|
||||
|
||||
def test_reset_twice_error(self):
|
||||
cap = self.getcapture()
|
||||
print ("hello")
|
||||
out, err = cap.reset()
|
||||
py.test.raises(ValueError, cap.reset)
|
||||
assert out == "hello\n"
|
||||
assert not err
|
||||
|
||||
def test_capturing_modify_sysouterr_in_between(self):
|
||||
oldout = sys.stdout
|
||||
olderr = sys.stderr
|
||||
cap = self.getcapture()
|
||||
sys.stdout.write("hello")
|
||||
sys.stderr.write("world")
|
||||
sys.stdout = py.io.TextIO()
|
||||
sys.stderr = py.io.TextIO()
|
||||
print ("not seen")
|
||||
sys.stderr.write("not seen\n")
|
||||
out, err = cap.reset()
|
||||
assert out == "hello"
|
||||
assert err == "world"
|
||||
assert sys.stdout == oldout
|
||||
assert sys.stderr == olderr
|
||||
|
||||
def test_capturing_error_recursive(self):
|
||||
cap1 = self.getcapture()
|
||||
print ("cap1")
|
||||
cap2 = self.getcapture()
|
||||
print ("cap2")
|
||||
out2, err2 = cap2.reset()
|
||||
out1, err1 = cap1.reset()
|
||||
assert out1 == "cap1\n"
|
||||
assert out2 == "cap2\n"
|
||||
|
||||
def test_just_out_capture(self):
|
||||
cap = self.getcapture(out=True, err=False)
|
||||
sys.stdout.write("hello")
|
||||
sys.stderr.write("world")
|
||||
out, err = cap.reset()
|
||||
assert out == "hello"
|
||||
assert not err
|
||||
|
||||
def test_just_err_capture(self):
|
||||
cap = self.getcapture(out=False, err=True)
|
||||
sys.stdout.write("hello")
|
||||
sys.stderr.write("world")
|
||||
out, err = cap.reset()
|
||||
assert err == "world"
|
||||
assert not out
|
||||
|
||||
def test_stdin_restored(self):
|
||||
old = sys.stdin
|
||||
cap = self.getcapture(in_=True)
|
||||
newstdin = sys.stdin
|
||||
out, err = cap.reset()
|
||||
assert newstdin != sys.stdin
|
||||
assert sys.stdin is old
|
||||
|
||||
def test_stdin_nulled_by_default(self):
|
||||
print ("XXX this test may well hang instead of crashing")
|
||||
print ("XXX which indicates an error in the underlying capturing")
|
||||
print ("XXX mechanisms")
|
||||
cap = self.getcapture()
|
||||
py.test.raises(IOError, "sys.stdin.read()")
|
||||
out, err = cap.reset()
|
||||
|
||||
def test_suspend_resume(self):
|
||||
cap = self.getcapture(out=True, err=False, in_=False)
|
||||
try:
|
||||
print ("hello")
|
||||
sys.stderr.write("error\n")
|
||||
out, err = cap.suspend()
|
||||
assert out == "hello\n"
|
||||
assert not err
|
||||
print ("in between")
|
||||
sys.stderr.write("in between\n")
|
||||
cap.resume()
|
||||
print ("after")
|
||||
sys.stderr.write("error_after\n")
|
||||
finally:
|
||||
out, err = cap.reset()
|
||||
assert out == "after\n"
|
||||
assert not err
|
||||
|
||||
class TestStdCaptureNotNow(TestStdCapture):
|
||||
def getcapture(self, **kw):
|
||||
kw['now'] = False
|
||||
cap = py.io.StdCapture(**kw)
|
||||
cap.startall()
|
||||
return cap
|
||||
|
||||
class TestStdCaptureFD(TestStdCapture):
|
||||
pytestmark = needsdup
|
||||
|
||||
def getcapture(self, **kw):
|
||||
return py.io.StdCaptureFD(**kw)
|
||||
|
||||
def test_intermingling(self):
|
||||
cap = self.getcapture()
|
||||
oswritebytes(1, "1")
|
||||
sys.stdout.write(str(2))
|
||||
sys.stdout.flush()
|
||||
oswritebytes(1, "3")
|
||||
oswritebytes(2, "a")
|
||||
sys.stderr.write("b")
|
||||
sys.stderr.flush()
|
||||
oswritebytes(2, "c")
|
||||
out, err = cap.reset()
|
||||
assert out == "123"
|
||||
assert err == "abc"
|
||||
|
||||
def test_callcapture(self):
|
||||
def func(x, y):
|
||||
print (x)
|
||||
py.std.sys.stderr.write(str(y))
|
||||
return 42
|
||||
|
||||
res, out, err = py.io.StdCaptureFD.call(func, 3, y=4)
|
||||
assert res == 42
|
||||
assert out.startswith("3")
|
||||
assert err.startswith("4")
|
||||
|
||||
def test_many(self, capfd):
|
||||
def f():
|
||||
for i in range(10):
|
||||
cap = py.io.StdCaptureFD()
|
||||
cap.reset()
|
||||
lsof_check(f)
|
||||
|
||||
class TestStdCaptureFDNotNow(TestStdCaptureFD):
|
||||
pytestmark = needsdup
|
||||
|
||||
def getcapture(self, **kw):
|
||||
kw['now'] = False
|
||||
cap = py.io.StdCaptureFD(**kw)
|
||||
cap.startall()
|
||||
return cap
|
||||
|
||||
@needsdup
|
||||
def test_stdcapture_fd_tmpfile(tmpfile):
|
||||
capfd = py.io.StdCaptureFD(out=tmpfile)
|
||||
os.write(1, "hello".encode("ascii"))
|
||||
os.write(2, "world".encode("ascii"))
|
||||
outf, errf = capfd.done()
|
||||
assert outf == tmpfile
|
||||
|
||||
class TestStdCaptureFDinvalidFD:
|
||||
pytestmark = needsdup
|
||||
def test_stdcapture_fd_invalid_fd(self, testdir):
|
||||
testdir.makepyfile("""
|
||||
import py, os
|
||||
def test_stdout():
|
||||
os.close(1)
|
||||
cap = py.io.StdCaptureFD(out=True, err=False, in_=False)
|
||||
cap.done()
|
||||
def test_stderr():
|
||||
os.close(2)
|
||||
cap = py.io.StdCaptureFD(out=False, err=True, in_=False)
|
||||
cap.done()
|
||||
def test_stdin():
|
||||
os.close(0)
|
||||
cap = py.io.StdCaptureFD(out=False, err=False, in_=True)
|
||||
cap.done()
|
||||
""")
|
||||
result = testdir.runpytest("--capture=fd")
|
||||
assert result.ret == 0
|
||||
assert result.parseoutcomes()['passed'] == 3
|
||||
|
||||
def test_capture_not_started_but_reset():
|
||||
capsys = py.io.StdCapture(now=False)
|
||||
capsys.done()
|
||||
capsys.done()
|
||||
capsys.reset()
|
||||
|
||||
@needsdup
|
||||
def test_capture_no_sys():
|
||||
capsys = py.io.StdCapture()
|
||||
try:
|
||||
cap = py.io.StdCaptureFD(patchsys=False)
|
||||
sys.stdout.write("hello")
|
||||
sys.stderr.write("world")
|
||||
oswritebytes(1, "1")
|
||||
oswritebytes(2, "2")
|
||||
out, err = cap.reset()
|
||||
assert out == "1"
|
||||
assert err == "2"
|
||||
finally:
|
||||
capsys.reset()
|
||||
|
||||
@needsdup
|
||||
def test_callcapture_nofd():
|
||||
def func(x, y):
|
||||
oswritebytes(1, "hello")
|
||||
oswritebytes(2, "hello")
|
||||
print (x)
|
||||
sys.stderr.write(str(y))
|
||||
return 42
|
||||
|
||||
capfd = py.io.StdCaptureFD(patchsys=False)
|
||||
try:
|
||||
res, out, err = py.io.StdCapture.call(func, 3, y=4)
|
||||
finally:
|
||||
capfd.reset()
|
||||
assert res == 42
|
||||
assert out.startswith("3")
|
||||
assert err.startswith("4")
|
||||
|
||||
@needsdup
|
||||
@py.test.mark.parametrize('use', [True, False])
|
||||
def test_fdcapture_tmpfile_remains_the_same(tmpfile, use):
|
||||
if not use:
|
||||
tmpfile = True
|
||||
cap = py.io.StdCaptureFD(out=False, err=tmpfile, now=False)
|
||||
cap.startall()
|
||||
capfile = cap.err.tmpfile
|
||||
cap.suspend()
|
||||
cap.resume()
|
||||
capfile2 = cap.err.tmpfile
|
||||
assert capfile2 == capfile
|
||||
|
||||
@py.test.mark.parametrize('method', ['StdCapture', 'StdCaptureFD'])
|
||||
def test_capturing_and_logging_fundamentals(testdir, method):
|
||||
if method == "StdCaptureFD" and not hasattr(os, 'dup'):
|
||||
py.test.skip("need os.dup")
|
||||
# here we check a fundamental feature
|
||||
p = testdir.makepyfile("""
|
||||
import sys, os
|
||||
import py, logging
|
||||
cap = py.io.%s(out=False, in_=False)
|
||||
|
||||
logging.warn("hello1")
|
||||
outerr = cap.suspend()
|
||||
print ("suspend, captured %%s" %%(outerr,))
|
||||
logging.warn("hello2")
|
||||
|
||||
cap.resume()
|
||||
logging.warn("hello3")
|
||||
|
||||
outerr = cap.suspend()
|
||||
print ("suspend2, captured %%s" %% (outerr,))
|
||||
""" % (method,))
|
||||
result = testdir.runpython(p)
|
||||
result.stdout.fnmatch_lines([
|
||||
"suspend, captured*hello1*",
|
||||
"suspend2, captured*hello2*WARNING:root:hello3*",
|
||||
])
|
||||
assert "atexit" not in result.stderr.str()
|
||||
|
|
|
|||
Loading…
Reference in New Issue