How to use StdCapture method in Pytest

Best Python code snippet using pytest

io_block.py

Source: io_block.py Github

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...12 def __init__(self):13 self._capture: Optional[IOManager] = None14 def start_capturing(self) -> None:15 assert self._capture is None16 self._capture = IOManager(out=StdCapture(1), err=StdCapture(2))17 self._capture.start()18 def stop_capturing(self) -> None:19 if self._capture is not None:20 self._capture.finish()21 self._capture = None22 def resume_capture(self) -> None:23 if self._capture is not None:24 self._capture.resume()25 def read_capture(self):26 assert self._capture is not None27 return self._capture.read()28 def suspend_capture(self) -> None:29 self._capture.suspend()30 @contextlib.contextmanager...

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test_warning.py

Source: test_warning.py Github

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2mypath = py.path.local(__file__).new(ext=".py")3def test_forwarding_to_warnings_module():4 py.test.deprecated_call(py.log._apiwarn, "1.3", "..")5def test_apiwarn_functional(recwarn):6 capture = py.io.StdCapture()7 py.log._apiwarn("x.y.z", "something", stacklevel=1)8 out, err = capture.reset()9 py.builtin.print_("out", out)10 py.builtin.print_("err", err)11 assert err.find("x.y.z") != -112 lno = py.code.getrawcode(test_apiwarn_functional).co_firstlineno + 213 exp = "%s:%s" % (mypath, lno)14 assert err.find(exp) != -115def test_stacklevel(recwarn):16 def f():17 py.log._apiwarn("x", "some", stacklevel=2)18 # 319 # 420 capture = py.io.StdCapture()21 f()22 out, err = capture.reset()23 lno = py.code.getrawcode(test_stacklevel).co_firstlineno + 624 warning = str(err)25 assert warning.find(":%s" % lno) != -126def test_stacklevel_initpkg_with_resolve(testdir, recwarn):27 testdir.makepyfile(modabc="""28 import py29 def f():30 py.log._apiwarn("x", "some", stacklevel="apipkg123")31 """)32 testdir.makepyfile(apipkg123="""33 def __getattr__():34 import modabc35 modabc.f()36 """)37 p = testdir.makepyfile("""38 import apipkg12339 apipkg123.__getattr__()40 """)41 capture = py.io.StdCapture()42 p.pyimport()43 out, err = capture.reset()44 warning = str(err)45 loc = 'test_stacklevel_initpkg_with_resolve.py:2'46 assert warning.find(loc) != -147def test_stacklevel_initpkg_no_resolve(recwarn):48 def f():49 py.log._apiwarn("x", "some", stacklevel="apipkg")50 capture = py.io.StdCapture()51 f()52 out, err = capture.reset()53 lno = py.code.getrawcode(test_stacklevel_initpkg_no_resolve).co_firstlineno + 254 warning = str(err)55 assert warning.find(":%s" % lno) != -156def test_function(recwarn):57 capture = py.io.StdCapture()58 py.log._apiwarn("x.y.z", "something", function=test_function)59 out, err = capture.reset()60 py.builtin.print_("out", out)61 py.builtin.print_("err", err)62 assert err.find("x.y.z") != -163 lno = py.code.getrawcode(test_function).co_firstlineno64 exp = "%s:%s" % (mypath, lno)...

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t3.py

Source: t3.py Github

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1## Test the EWF reading capabililties2import pyaff4, pdb3import time4time.sleep(1)5oracle = pyaff4.Resolver()6urn = pyaff4.RDFURN()7try:8 urn.set("ewf:/​/​/​var/​tmp/​uploads/​stdcapture_0.4.pcap/​stream")9 fd = oracle.open(urn, 'r')10 print fd11 fd.cache_return()12except RuntimeError:13 pass14urn.set("/​var/​tmp/​uploads/​stdcapture_0.4.pcap.e01")15if oracle.load(urn):16 print "Loaded URN %s" % urn.value17 ## Now list all the members in this volume18 stream_urn = pyaff4.RDFURN()19 iter = oracle.get_iter(urn, pyaff4.AFF4_CONTAINS)20 while oracle.iter_next(iter, stream_urn):21 print "Stream %s" % stream_urn.value22 fd = oracle.open(stream_urn, 'r')...

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As MasterAndrey has mentioned, pytest_ignore_collect should do the trick. Important to note that you should put conftest.py to root folder (the one you run tests from).
Example:

import sys

def pytest_ignore_collect(path):
    if sys.version_info[0] > 2:
        if str(path).endswith("__py2.py"):
            return True
    else:
        if str(path).endswith("__py3.py"):
            return True

Since pytest v4.3.0 there is also --ignore-glob flag which allows to ignore by pattern. Example: pytest --doctest-modules --ignore-glob="*__py3.py" dir/

https://stackoverflow.com/questions/41358778/can-i-make-the-pytest-doctest-module-ignore-a-file

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