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How to use StdCapture method in Pytest

Best Python code snippet using pytest

io_block.py

Source:io_block.py

...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...

test_warning.py

Source:test_warning.py

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)...

t3.py

Source:t3.py

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')...

Pytest Tutorial

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What is pytest
Pytest installation: Want to start pytest from scratch? See how to install and configure pytest for Python automation testing.
Run first test with pytest framework: Follow this step-by-step tutorial to write and run your first pytest script.
Parallel testing with pytest: A hands-on guide to parallel testing with pytest to improve the scalability of your test automation.
Generate pytest reports: Reports make it easier to understand the results of pytest-based test runs. Learn how to generate pytest reports.
Pytest Parameterized tests: Create and run your pytest scripts while avoiding code duplication and increasing test coverage with parameterization.
Pytest Fixtures: Check out how to implement pytest fixtures for your end-to-end testing needs.
Execute Multiple Test Cases: Explore different scenarios for running multiple test cases in pytest from a single file.
Stop Test Suite after N Test Failures: See how to stop your test suite after n test failures in pytest using the @pytest.mark.incremental decorator and maxfail command-line option.