1495 lines
43 KiB
Python
1495 lines
43 KiB
Python
import contextlib
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import io
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import os
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import pickle
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import subprocess
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import sys
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import textwrap
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from io import StringIO
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from io import UnsupportedOperation
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from typing import List
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from typing import TextIO
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import pytest
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from _pytest import capture
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from _pytest.capture import CaptureManager
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from _pytest.main import ExitCode
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# note: py.io capture tests where copied from
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# pylib 1.4.20.dev2 (rev 13d9af95547e)
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needsosdup = pytest.mark.skipif(
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not hasattr(os, "dup"), reason="test needs os.dup, not available on this platform"
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)
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def StdCaptureFD(out=True, err=True, in_=True):
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return capture.MultiCapture(out, err, in_, Capture=capture.FDCapture)
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def StdCapture(out=True, err=True, in_=True):
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return capture.MultiCapture(out, err, in_, Capture=capture.SysCapture)
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class TestCaptureManager:
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def test_getmethod_default_no_fd(self, monkeypatch):
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from _pytest.capture import pytest_addoption
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from _pytest.config.argparsing import Parser
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parser = Parser()
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pytest_addoption(parser)
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default = parser._groups[0].options[0].default
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assert default == "fd" if hasattr(os, "dup") else "sys"
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parser = Parser()
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monkeypatch.delattr(os, "dup", raising=False)
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pytest_addoption(parser)
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assert parser._groups[0].options[0].default == "sys"
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@pytest.mark.parametrize(
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"method", ["no", "sys", pytest.param("fd", marks=needsosdup)]
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)
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def test_capturing_basic_api(self, method):
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capouter = StdCaptureFD()
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old = sys.stdout, sys.stderr, sys.stdin
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try:
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capman = CaptureManager(method)
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capman.start_global_capturing()
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capman.suspend_global_capture()
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outerr = capman.read_global_capture()
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assert outerr == ("", "")
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capman.suspend_global_capture()
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outerr = capman.read_global_capture()
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assert outerr == ("", "")
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print("hello")
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capman.suspend_global_capture()
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out, err = capman.read_global_capture()
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if method == "no":
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assert old == (sys.stdout, sys.stderr, sys.stdin)
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else:
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assert not out
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capman.resume_global_capture()
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print("hello")
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capman.suspend_global_capture()
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out, err = capman.read_global_capture()
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if method != "no":
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assert out == "hello\n"
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capman.stop_global_capturing()
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finally:
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capouter.stop_capturing()
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@needsosdup
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def test_init_capturing(self):
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capouter = StdCaptureFD()
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try:
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capman = CaptureManager("fd")
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capman.start_global_capturing()
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pytest.raises(AssertionError, capman.start_global_capturing)
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capman.stop_global_capturing()
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finally:
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capouter.stop_capturing()
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@pytest.mark.parametrize("method", ["fd", "sys"])
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def test_capturing_unicode(testdir, method):
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if hasattr(sys, "pypy_version_info") and sys.pypy_version_info < (2, 2):
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pytest.xfail("does not work on pypy < 2.2")
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obj = "'b\u00f6y'"
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testdir.makepyfile(
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"""\
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# taken from issue 227 from nosetests
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def test_unicode():
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import sys
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print(sys.stdout)
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print(%s)
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"""
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% obj
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)
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result = testdir.runpytest("--capture=%s" % method)
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result.stdout.fnmatch_lines(["*1 passed*"])
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@pytest.mark.parametrize("method", ["fd", "sys"])
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def test_capturing_bytes_in_utf8_encoding(testdir, method):
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testdir.makepyfile(
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"""\
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def test_unicode():
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print('b\\u00f6y')
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"""
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)
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result = testdir.runpytest("--capture=%s" % method)
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result.stdout.fnmatch_lines(["*1 passed*"])
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def test_collect_capturing(testdir):
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p = testdir.makepyfile(
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"""
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import sys
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print("collect %s failure" % 13)
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sys.stderr.write("collect %s_stderr failure" % 13)
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import xyz42123
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"""
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)
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines(
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[
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"*Captured stdout*",
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"collect 13 failure",
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"*Captured stderr*",
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"collect 13_stderr failure",
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]
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)
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class TestPerTestCapturing:
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def test_capture_and_fixtures(self, testdir):
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p = testdir.makepyfile(
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"""
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def setup_module(mod):
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print("setup module")
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def setup_function(function):
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print("setup " + function.__name__)
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def test_func1():
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print("in func1")
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assert 0
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def test_func2():
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print("in func2")
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assert 0
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"""
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)
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines(
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[
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"setup module*",
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"setup test_func1*",
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"in func1*",
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"setup test_func2*",
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"in func2*",
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]
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)
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@pytest.mark.xfail(reason="unimplemented feature")
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def test_capture_scope_cache(self, testdir):
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p = testdir.makepyfile(
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"""
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import sys
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def setup_module(func):
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print("module-setup")
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def setup_function(func):
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print("function-setup")
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def test_func():
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print("in function")
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assert 0
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def teardown_function(func):
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print("in teardown")
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"""
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)
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines(
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[
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"*test_func():*",
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"*Captured stdout during setup*",
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"module-setup*",
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"function-setup*",
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"*Captured stdout*",
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"in teardown*",
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]
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)
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def test_no_carry_over(self, testdir):
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p = testdir.makepyfile(
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"""
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def test_func1():
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print("in func1")
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def test_func2():
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print("in func2")
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assert 0
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"""
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)
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result = testdir.runpytest(p)
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s = result.stdout.str()
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assert "in func1" not in s
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assert "in func2" in s
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def test_teardown_capturing(self, testdir):
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p = testdir.makepyfile(
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"""
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def setup_function(function):
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print("setup func1")
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def teardown_function(function):
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print("teardown func1")
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assert 0
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def test_func1():
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print("in func1")
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pass
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"""
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)
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines(
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[
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"*teardown_function*",
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"*Captured stdout*",
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"setup func1*",
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"in func1*",
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"teardown func1*",
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# "*1 fixture failure*"
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]
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)
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def test_teardown_capturing_final(self, testdir):
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p = testdir.makepyfile(
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"""
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def teardown_module(mod):
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print("teardown module")
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assert 0
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def test_func():
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pass
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"""
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)
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result = testdir.runpytest(p)
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result.stdout.fnmatch_lines(
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[
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"*def teardown_module(mod):*",
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"*Captured stdout*",
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"*teardown module*",
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"*1 error*",
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]
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)
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def test_capturing_outerr(self, testdir):
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p1 = testdir.makepyfile(
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"""\
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import sys
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def test_capturing():
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print(42)
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sys.stderr.write(str(23))
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def test_capturing_error():
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print(1)
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sys.stderr.write(str(2))
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raise ValueError
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"""
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)
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result = testdir.runpytest(p1)
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result.stdout.fnmatch_lines(
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[
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"*test_capturing_outerr.py .F*",
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"====* FAILURES *====",
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"____*____",
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"*test_capturing_outerr.py:8: ValueError",
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"*--- Captured stdout *call*",
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"1",
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"*--- Captured stderr *call*",
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"2",
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]
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)
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class TestLoggingInteraction:
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def test_logging_stream_ownership(self, testdir):
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p = testdir.makepyfile(
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"""\
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def test_logging():
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import logging
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import pytest
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stream = capture.CaptureIO()
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logging.basicConfig(stream=stream)
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stream.close() # to free memory/release resources
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"""
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)
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result = testdir.runpytest_subprocess(p)
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assert result.stderr.str().find("atexit") == -1
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def test_logging_and_immediate_setupteardown(self, testdir):
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p = testdir.makepyfile(
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"""\
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import logging
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def setup_function(function):
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logging.warning("hello1")
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def test_logging():
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logging.warning("hello2")
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assert 0
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def teardown_function(function):
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logging.warning("hello3")
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assert 0
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"""
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)
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for optargs in (("--capture=sys",), ("--capture=fd",)):
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print(optargs)
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result = testdir.runpytest_subprocess(p, *optargs)
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s = result.stdout.str()
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result.stdout.fnmatch_lines(
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["*WARN*hello3", "*WARN*hello1", "*WARN*hello2"] # errors show first!
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)
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# verify proper termination
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assert "closed" not in s
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def test_logging_and_crossscope_fixtures(self, testdir):
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p = testdir.makepyfile(
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"""\
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import logging
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def setup_module(function):
|
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logging.warning("hello1")
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|
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def test_logging():
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logging.warning("hello2")
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assert 0
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def teardown_module(function):
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logging.warning("hello3")
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assert 0
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"""
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)
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for optargs in (("--capture=sys",), ("--capture=fd",)):
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print(optargs)
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result = testdir.runpytest_subprocess(p, *optargs)
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s = result.stdout.str()
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result.stdout.fnmatch_lines(
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["*WARN*hello3", "*WARN*hello1", "*WARN*hello2"] # errors come first
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)
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# verify proper termination
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assert "closed" not in s
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|
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def test_conftestlogging_is_shown(self, testdir):
|
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testdir.makeconftest(
|
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"""\
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import logging
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logging.basicConfig()
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logging.warning("hello435")
|
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"""
|
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)
|
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# make sure that logging is still captured in tests
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result = testdir.runpytest_subprocess("-s", "-p", "no:capturelog")
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assert result.ret == ExitCode.NO_TESTS_COLLECTED
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result.stderr.fnmatch_lines(["WARNING*hello435*"])
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assert "operation on closed file" not in result.stderr.str()
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|
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def test_conftestlogging_and_test_logging(self, testdir):
|
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testdir.makeconftest(
|
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"""\
|
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import logging
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logging.basicConfig()
|
|
"""
|
|
)
|
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# make sure that logging is still captured in tests
|
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p = testdir.makepyfile(
|
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"""\
|
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def test_hello():
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import logging
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logging.warning("hello433")
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assert 0
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"""
|
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)
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result = testdir.runpytest_subprocess(p, "-p", "no:capturelog")
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assert result.ret != 0
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result.stdout.fnmatch_lines(["WARNING*hello433*"])
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assert "something" not in result.stderr.str()
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assert "operation on closed file" not in result.stderr.str()
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|
|
def test_logging_after_cap_stopped(self, testdir):
|
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testdir.makeconftest(
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"""\
|
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import pytest
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import logging
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|
|
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log = logging.getLogger(__name__)
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|
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@pytest.fixture
|
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def log_on_teardown():
|
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yield
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log.warning('Logging on teardown')
|
|
"""
|
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)
|
|
# make sure that logging is still captured in tests
|
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p = testdir.makepyfile(
|
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"""\
|
|
def test_hello(log_on_teardown):
|
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import logging
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logging.warning("hello433")
|
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assert 1
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raise KeyboardInterrupt()
|
|
"""
|
|
)
|
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result = testdir.runpytest_subprocess(p, "--log-cli-level", "info")
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assert result.ret != 0
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result.stdout.fnmatch_lines(
|
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["*WARNING*hello433*", "*WARNING*Logging on teardown*"]
|
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)
|
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assert (
|
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"AttributeError: 'NoneType' object has no attribute 'resume_capturing'"
|
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not in result.stderr.str()
|
|
)
|
|
|
|
|
|
class TestCaptureFixture:
|
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@pytest.mark.parametrize("opt", [[], ["-s"]])
|
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def test_std_functional(self, testdir, opt):
|
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reprec = testdir.inline_runsource(
|
|
"""\
|
|
def test_hello(capsys):
|
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print(42)
|
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out, err = capsys.readouterr()
|
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assert out.startswith("42")
|
|
""",
|
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*opt
|
|
)
|
|
reprec.assertoutcome(passed=1)
|
|
|
|
def test_capsyscapfd(self, testdir):
|
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p = testdir.makepyfile(
|
|
"""\
|
|
def test_one(capsys, capfd):
|
|
pass
|
|
def test_two(capfd, capsys):
|
|
pass
|
|
"""
|
|
)
|
|
result = testdir.runpytest(p)
|
|
result.stdout.fnmatch_lines(
|
|
[
|
|
"*ERROR*setup*test_one*",
|
|
"E*capfd*capsys*same*time*",
|
|
"*ERROR*setup*test_two*",
|
|
"E*capsys*capfd*same*time*",
|
|
"*2 errors*",
|
|
]
|
|
)
|
|
|
|
def test_capturing_getfixturevalue(self, testdir):
|
|
"""Test that asking for "capfd" and "capsys" using request.getfixturevalue
|
|
in the same test is an error.
|
|
"""
|
|
testdir.makepyfile(
|
|
"""\
|
|
def test_one(capsys, request):
|
|
request.getfixturevalue("capfd")
|
|
def test_two(capfd, request):
|
|
request.getfixturevalue("capsys")
|
|
"""
|
|
)
|
|
result = testdir.runpytest()
|
|
result.stdout.fnmatch_lines(
|
|
[
|
|
"*test_one*",
|
|
"*capsys*capfd*same*time*",
|
|
"*test_two*",
|
|
"*capfd*capsys*same*time*",
|
|
"*2 failed in*",
|
|
]
|
|
)
|
|
|
|
def test_capsyscapfdbinary(self, testdir):
|
|
p = testdir.makepyfile(
|
|
"""\
|
|
def test_one(capsys, capfdbinary):
|
|
pass
|
|
"""
|
|
)
|
|
result = testdir.runpytest(p)
|
|
result.stdout.fnmatch_lines(
|
|
["*ERROR*setup*test_one*", "E*capfdbinary*capsys*same*time*", "*1 error*"]
|
|
)
|
|
|
|
@pytest.mark.parametrize("method", ["sys", "fd"])
|
|
def test_capture_is_represented_on_failure_issue128(self, testdir, method):
|
|
p = testdir.makepyfile(
|
|
"""\
|
|
def test_hello(cap{}):
|
|
print("xxx42xxx")
|
|
assert 0
|
|
""".format(
|
|
method
|
|
)
|
|
)
|
|
result = testdir.runpytest(p)
|
|
result.stdout.fnmatch_lines(["xxx42xxx"])
|
|
|
|
@needsosdup
|
|
def test_stdfd_functional(self, testdir):
|
|
reprec = testdir.inline_runsource(
|
|
"""\
|
|
def test_hello(capfd):
|
|
import os
|
|
os.write(1, b"42")
|
|
out, err = capfd.readouterr()
|
|
assert out.startswith("42")
|
|
capfd.close()
|
|
"""
|
|
)
|
|
reprec.assertoutcome(passed=1)
|
|
|
|
@needsosdup
|
|
def test_capfdbinary(self, testdir):
|
|
reprec = testdir.inline_runsource(
|
|
"""\
|
|
def test_hello(capfdbinary):
|
|
import os
|
|
# some likely un-decodable bytes
|
|
os.write(1, b'\\xfe\\x98\\x20')
|
|
out, err = capfdbinary.readouterr()
|
|
assert out == b'\\xfe\\x98\\x20'
|
|
assert err == b''
|
|
"""
|
|
)
|
|
reprec.assertoutcome(passed=1)
|
|
|
|
def test_capsysbinary(self, testdir):
|
|
reprec = testdir.inline_runsource(
|
|
"""\
|
|
def test_hello(capsysbinary):
|
|
import sys
|
|
# some likely un-decodable bytes
|
|
sys.stdout.buffer.write(b'\\xfe\\x98\\x20')
|
|
out, err = capsysbinary.readouterr()
|
|
assert out == b'\\xfe\\x98\\x20'
|
|
assert err == b''
|
|
"""
|
|
)
|
|
reprec.assertoutcome(passed=1)
|
|
|
|
def test_partial_setup_failure(self, testdir):
|
|
p = testdir.makepyfile(
|
|
"""\
|
|
def test_hello(capsys, missingarg):
|
|
pass
|
|
"""
|
|
)
|
|
result = testdir.runpytest(p)
|
|
result.stdout.fnmatch_lines(["*test_partial_setup_failure*", "*1 error*"])
|
|
|
|
@needsosdup
|
|
def test_keyboardinterrupt_disables_capturing(self, testdir):
|
|
p = testdir.makepyfile(
|
|
"""\
|
|
def test_hello(capfd):
|
|
import os
|
|
os.write(1, b'42')
|
|
raise KeyboardInterrupt()
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess(p)
|
|
result.stdout.fnmatch_lines(["*KeyboardInterrupt*"])
|
|
assert result.ret == 2
|
|
|
|
def test_capture_and_logging(self, testdir):
|
|
"""#14"""
|
|
p = testdir.makepyfile(
|
|
"""\
|
|
import logging
|
|
def test_log(capsys):
|
|
logging.error('x')
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess(p)
|
|
assert "closed" not in result.stderr.str()
|
|
|
|
@pytest.mark.parametrize("fixture", ["capsys", "capfd"])
|
|
@pytest.mark.parametrize("no_capture", [True, False])
|
|
def test_disabled_capture_fixture(self, testdir, fixture, no_capture):
|
|
testdir.makepyfile(
|
|
"""\
|
|
def test_disabled({fixture}):
|
|
print('captured before')
|
|
with {fixture}.disabled():
|
|
print('while capture is disabled')
|
|
print('captured after')
|
|
assert {fixture}.readouterr() == ('captured before\\ncaptured after\\n', '')
|
|
|
|
def test_normal():
|
|
print('test_normal executed')
|
|
""".format(
|
|
fixture=fixture
|
|
)
|
|
)
|
|
args = ("-s",) if no_capture else ()
|
|
result = testdir.runpytest_subprocess(*args)
|
|
result.stdout.fnmatch_lines(["*while capture is disabled*", "*= 2 passed in *"])
|
|
result.stdout.no_fnmatch_line("*captured before*")
|
|
result.stdout.no_fnmatch_line("*captured after*")
|
|
if no_capture:
|
|
assert "test_normal executed" in result.stdout.str()
|
|
else:
|
|
result.stdout.no_fnmatch_line("*test_normal executed*")
|
|
|
|
@pytest.mark.parametrize("fixture", ["capsys", "capfd"])
|
|
def test_fixture_use_by_other_fixtures(self, testdir, fixture):
|
|
"""
|
|
Ensure that capsys and capfd can be used by other fixtures during setup and teardown.
|
|
"""
|
|
testdir.makepyfile(
|
|
"""\
|
|
import sys
|
|
import pytest
|
|
|
|
@pytest.fixture
|
|
def captured_print({fixture}):
|
|
print('stdout contents begin')
|
|
print('stderr contents begin', file=sys.stderr)
|
|
out, err = {fixture}.readouterr()
|
|
|
|
yield out, err
|
|
|
|
print('stdout contents end')
|
|
print('stderr contents end', file=sys.stderr)
|
|
out, err = {fixture}.readouterr()
|
|
assert out == 'stdout contents end\\n'
|
|
assert err == 'stderr contents end\\n'
|
|
|
|
def test_captured_print(captured_print):
|
|
out, err = captured_print
|
|
assert out == 'stdout contents begin\\n'
|
|
assert err == 'stderr contents begin\\n'
|
|
""".format(
|
|
fixture=fixture
|
|
)
|
|
)
|
|
result = testdir.runpytest_subprocess()
|
|
result.stdout.fnmatch_lines(["*1 passed*"])
|
|
result.stdout.no_fnmatch_line("*stdout contents begin*")
|
|
result.stdout.no_fnmatch_line("*stderr contents begin*")
|
|
|
|
@pytest.mark.parametrize("cap", ["capsys", "capfd"])
|
|
def test_fixture_use_by_other_fixtures_teardown(self, testdir, cap):
|
|
"""Ensure we can access setup and teardown buffers from teardown when using capsys/capfd (##3033)"""
|
|
testdir.makepyfile(
|
|
"""\
|
|
import sys
|
|
import pytest
|
|
import os
|
|
|
|
@pytest.fixture()
|
|
def fix({cap}):
|
|
print("setup out")
|
|
sys.stderr.write("setup err\\n")
|
|
yield
|
|
out, err = {cap}.readouterr()
|
|
assert out == 'setup out\\ncall out\\n'
|
|
assert err == 'setup err\\ncall err\\n'
|
|
|
|
def test_a(fix):
|
|
print("call out")
|
|
sys.stderr.write("call err\\n")
|
|
""".format(
|
|
cap=cap
|
|
)
|
|
)
|
|
reprec = testdir.inline_run()
|
|
reprec.assertoutcome(passed=1)
|
|
|
|
|
|
def test_setup_failure_does_not_kill_capturing(testdir):
|
|
sub1 = testdir.mkpydir("sub1")
|
|
sub1.join("conftest.py").write(
|
|
textwrap.dedent(
|
|
"""\
|
|
def pytest_runtest_setup(item):
|
|
raise ValueError(42)
|
|
"""
|
|
)
|
|
)
|
|
sub1.join("test_mod.py").write("def test_func1(): pass")
|
|
result = testdir.runpytest(testdir.tmpdir, "--traceconfig")
|
|
result.stdout.fnmatch_lines(["*ValueError(42)*", "*1 error*"])
|
|
|
|
|
|
def test_fdfuncarg_skips_on_no_osdup(testdir):
|
|
testdir.makepyfile(
|
|
"""
|
|
import os
|
|
if hasattr(os, 'dup'):
|
|
del os.dup
|
|
def test_hello(capfd):
|
|
pass
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess("--capture=no")
|
|
result.stdout.fnmatch_lines(["*1 skipped*"])
|
|
|
|
|
|
def test_capture_conftest_runtest_setup(testdir):
|
|
testdir.makeconftest(
|
|
"""
|
|
def pytest_runtest_setup():
|
|
print("hello19")
|
|
"""
|
|
)
|
|
testdir.makepyfile("def test_func(): pass")
|
|
result = testdir.runpytest()
|
|
assert result.ret == 0
|
|
result.stdout.no_fnmatch_line("*hello19*")
|
|
|
|
|
|
def test_capture_badoutput_issue412(testdir):
|
|
testdir.makepyfile(
|
|
"""
|
|
import os
|
|
|
|
def test_func():
|
|
omg = bytearray([1,129,1])
|
|
os.write(1, omg)
|
|
assert 0
|
|
"""
|
|
)
|
|
result = testdir.runpytest("--capture=fd")
|
|
result.stdout.fnmatch_lines(
|
|
"""
|
|
*def test_func*
|
|
*assert 0*
|
|
*Captured*
|
|
*1 failed*
|
|
"""
|
|
)
|
|
|
|
|
|
def test_capture_early_option_parsing(testdir):
|
|
testdir.makeconftest(
|
|
"""
|
|
def pytest_runtest_setup():
|
|
print("hello19")
|
|
"""
|
|
)
|
|
testdir.makepyfile("def test_func(): pass")
|
|
result = testdir.runpytest("-vs")
|
|
assert result.ret == 0
|
|
assert "hello19" in result.stdout.str()
|
|
|
|
|
|
def test_capture_binary_output(testdir):
|
|
testdir.makepyfile(
|
|
r"""
|
|
import pytest
|
|
|
|
def test_a():
|
|
import sys
|
|
import subprocess
|
|
subprocess.call([sys.executable, __file__])
|
|
|
|
def test_foo():
|
|
import os;os.write(1, b'\xc3')
|
|
|
|
if __name__ == '__main__':
|
|
test_foo()
|
|
"""
|
|
)
|
|
result = testdir.runpytest("--assert=plain")
|
|
result.assert_outcomes(passed=2)
|
|
|
|
|
|
def test_error_during_readouterr(testdir):
|
|
"""Make sure we suspend capturing if errors occur during readouterr"""
|
|
testdir.makepyfile(
|
|
pytest_xyz="""
|
|
from _pytest.capture import FDCapture
|
|
|
|
def bad_snap(self):
|
|
raise Exception('boom')
|
|
|
|
assert FDCapture.snap
|
|
FDCapture.snap = bad_snap
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess("-p", "pytest_xyz", "--version")
|
|
result.stderr.fnmatch_lines(
|
|
["*in bad_snap", " raise Exception('boom')", "Exception: boom"]
|
|
)
|
|
|
|
|
|
class TestCaptureIO:
|
|
def test_text(self):
|
|
f = capture.CaptureIO()
|
|
f.write("hello")
|
|
s = f.getvalue()
|
|
assert s == "hello"
|
|
f.close()
|
|
|
|
def test_unicode_and_str_mixture(self):
|
|
f = capture.CaptureIO()
|
|
f.write("\u00f6")
|
|
pytest.raises(TypeError, f.write, b"hello")
|
|
|
|
def test_write_bytes_to_buffer(self):
|
|
"""In python3, stdout / stderr are text io wrappers (exposing a buffer
|
|
property of the underlying bytestream). See issue #1407
|
|
"""
|
|
f = capture.CaptureIO()
|
|
f.buffer.write(b"foo\r\n")
|
|
assert f.getvalue() == "foo\r\n"
|
|
|
|
|
|
def test_dontreadfrominput():
|
|
from _pytest.capture import DontReadFromInput
|
|
|
|
f = DontReadFromInput()
|
|
assert f.buffer is f
|
|
assert not f.isatty()
|
|
pytest.raises(IOError, f.read)
|
|
pytest.raises(IOError, f.readlines)
|
|
iter_f = iter(f)
|
|
pytest.raises(IOError, next, iter_f)
|
|
pytest.raises(UnsupportedOperation, f.fileno)
|
|
f.close() # just for completeness
|
|
|
|
|
|
@pytest.fixture
|
|
def tmpfile(testdir):
|
|
f = testdir.makepyfile("").open("wb+")
|
|
yield f
|
|
if not f.closed:
|
|
f.close()
|
|
|
|
|
|
@needsosdup
|
|
def test_dupfile(tmpfile) -> None:
|
|
flist = [] # type: List[TextIO]
|
|
for i in range(5):
|
|
nf = capture.safe_text_dupfile(tmpfile, "wb")
|
|
assert nf != tmpfile
|
|
assert nf.fileno() != tmpfile.fileno()
|
|
assert nf not in flist
|
|
print(i, end="", file=nf)
|
|
flist.append(nf)
|
|
|
|
fname_open = flist[0].name
|
|
assert fname_open == repr(flist[0].buffer)
|
|
|
|
for i in range(5):
|
|
f = flist[i]
|
|
f.close()
|
|
fname_closed = flist[0].name
|
|
assert fname_closed == repr(flist[0].buffer)
|
|
assert fname_closed != fname_open
|
|
tmpfile.seek(0)
|
|
s = tmpfile.read()
|
|
assert "01234" in repr(s)
|
|
tmpfile.close()
|
|
assert fname_closed == repr(flist[0].buffer)
|
|
|
|
|
|
def test_dupfile_on_bytesio():
|
|
bio = io.BytesIO()
|
|
f = capture.safe_text_dupfile(bio, "wb")
|
|
f.write("hello")
|
|
assert bio.getvalue() == b"hello"
|
|
assert "BytesIO object" in f.name
|
|
|
|
|
|
def test_dupfile_on_textio():
|
|
sio = StringIO()
|
|
f = capture.safe_text_dupfile(sio, "wb")
|
|
f.write("hello")
|
|
assert sio.getvalue() == "hello"
|
|
assert not hasattr(f, "name")
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def lsof_check():
|
|
pid = os.getpid()
|
|
try:
|
|
out = subprocess.check_output(("lsof", "-p", str(pid))).decode()
|
|
except (OSError, subprocess.CalledProcessError, UnicodeDecodeError) as exc:
|
|
# about UnicodeDecodeError, see note on pytester
|
|
pytest.skip("could not run 'lsof' ({!r})".format(exc))
|
|
yield
|
|
out2 = subprocess.check_output(("lsof", "-p", str(pid))).decode()
|
|
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 = needsosdup
|
|
|
|
def test_simple(self, tmpfile):
|
|
fd = tmpfile.fileno()
|
|
cap = capture.FDCapture(fd)
|
|
data = b"hello"
|
|
os.write(fd, data)
|
|
s = cap.snap()
|
|
cap.done()
|
|
assert not s
|
|
cap = capture.FDCapture(fd)
|
|
cap.start()
|
|
os.write(fd, data)
|
|
s = cap.snap()
|
|
cap.done()
|
|
assert s == "hello"
|
|
|
|
def test_simple_many(self, tmpfile):
|
|
for i in range(10):
|
|
self.test_simple(tmpfile)
|
|
|
|
def test_simple_many_check_open_files(self, testdir):
|
|
with lsof_check():
|
|
with testdir.makepyfile("").open("wb+") as tmpfile:
|
|
self.test_simple_many(tmpfile)
|
|
|
|
def test_simple_fail_second_start(self, tmpfile):
|
|
fd = tmpfile.fileno()
|
|
cap = capture.FDCapture(fd)
|
|
cap.done()
|
|
pytest.raises(ValueError, cap.start)
|
|
|
|
def test_stderr(self):
|
|
cap = capture.FDCapture(2)
|
|
cap.start()
|
|
print("hello", file=sys.stderr)
|
|
s = cap.snap()
|
|
cap.done()
|
|
assert s == "hello\n"
|
|
|
|
def test_stdin(self, tmpfile):
|
|
cap = capture.FDCapture(0)
|
|
cap.start()
|
|
x = os.read(0, 100).strip()
|
|
cap.done()
|
|
assert x == b""
|
|
|
|
def test_writeorg(self, tmpfile):
|
|
data1, data2 = b"foo", b"bar"
|
|
cap = capture.FDCapture(tmpfile.fileno())
|
|
cap.start()
|
|
tmpfile.write(data1)
|
|
tmpfile.flush()
|
|
cap.writeorg(data2)
|
|
scap = cap.snap()
|
|
cap.done()
|
|
assert scap == data1.decode("ascii")
|
|
with open(tmpfile.name, "rb") as stmp_file:
|
|
stmp = stmp_file.read()
|
|
assert stmp == data2
|
|
|
|
def test_simple_resume_suspend(self, tmpfile):
|
|
with saved_fd(1):
|
|
cap = capture.FDCapture(1)
|
|
cap.start()
|
|
data = b"hello"
|
|
os.write(1, data)
|
|
sys.stdout.write("whatever")
|
|
s = cap.snap()
|
|
assert s == "hellowhatever"
|
|
cap.suspend()
|
|
os.write(1, b"world")
|
|
sys.stdout.write("qlwkej")
|
|
assert not cap.snap()
|
|
cap.resume()
|
|
os.write(1, b"but now")
|
|
sys.stdout.write(" yes\n")
|
|
s = cap.snap()
|
|
assert s == "but now yes\n"
|
|
cap.suspend()
|
|
cap.done()
|
|
pytest.raises(AttributeError, cap.suspend)
|
|
|
|
def test_capfd_sys_stdout_mode(self, capfd):
|
|
assert "b" not in sys.stdout.mode
|
|
|
|
|
|
@contextlib.contextmanager
|
|
def saved_fd(fd):
|
|
new_fd = os.dup(fd)
|
|
try:
|
|
yield
|
|
finally:
|
|
os.dup2(new_fd, fd)
|
|
os.close(new_fd)
|
|
|
|
|
|
class TestStdCapture:
|
|
captureclass = staticmethod(StdCapture)
|
|
|
|
@contextlib.contextmanager
|
|
def getcapture(self, **kw):
|
|
cap = self.__class__.captureclass(**kw)
|
|
cap.start_capturing()
|
|
try:
|
|
yield cap
|
|
finally:
|
|
cap.stop_capturing()
|
|
|
|
def test_capturing_done_simple(self):
|
|
with self.getcapture() as cap:
|
|
sys.stdout.write("hello")
|
|
sys.stderr.write("world")
|
|
out, err = cap.readouterr()
|
|
assert out == "hello"
|
|
assert err == "world"
|
|
|
|
def test_capturing_reset_simple(self):
|
|
with self.getcapture() as cap:
|
|
print("hello world")
|
|
sys.stderr.write("hello error\n")
|
|
out, err = cap.readouterr()
|
|
assert out == "hello world\n"
|
|
assert err == "hello error\n"
|
|
|
|
def test_capturing_readouterr(self):
|
|
with self.getcapture() as cap:
|
|
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")
|
|
out, err = cap.readouterr()
|
|
assert err == "error2"
|
|
|
|
def test_capture_results_accessible_by_attribute(self):
|
|
with self.getcapture() as cap:
|
|
sys.stdout.write("hello")
|
|
sys.stderr.write("world")
|
|
capture_result = cap.readouterr()
|
|
assert capture_result.out == "hello"
|
|
assert capture_result.err == "world"
|
|
|
|
def test_capturing_readouterr_unicode(self):
|
|
with self.getcapture() as cap:
|
|
print("hxąć")
|
|
out, err = cap.readouterr()
|
|
assert out == "hxąć\n"
|
|
|
|
def test_reset_twice_error(self):
|
|
with self.getcapture() as cap:
|
|
print("hello")
|
|
out, err = cap.readouterr()
|
|
pytest.raises(ValueError, cap.stop_capturing)
|
|
assert out == "hello\n"
|
|
assert not err
|
|
|
|
def test_capturing_modify_sysouterr_in_between(self):
|
|
oldout = sys.stdout
|
|
olderr = sys.stderr
|
|
with self.getcapture() as cap:
|
|
sys.stdout.write("hello")
|
|
sys.stderr.write("world")
|
|
sys.stdout = capture.CaptureIO()
|
|
sys.stderr = capture.CaptureIO()
|
|
print("not seen")
|
|
sys.stderr.write("not seen\n")
|
|
out, err = cap.readouterr()
|
|
assert out == "hello"
|
|
assert err == "world"
|
|
assert sys.stdout == oldout
|
|
assert sys.stderr == olderr
|
|
|
|
def test_capturing_error_recursive(self):
|
|
with self.getcapture() as cap1:
|
|
print("cap1")
|
|
with self.getcapture() as cap2:
|
|
print("cap2")
|
|
out2, err2 = cap2.readouterr()
|
|
out1, err1 = cap1.readouterr()
|
|
assert out1 == "cap1\n"
|
|
assert out2 == "cap2\n"
|
|
|
|
def test_just_out_capture(self):
|
|
with self.getcapture(out=True, err=False) as cap:
|
|
sys.stdout.write("hello")
|
|
sys.stderr.write("world")
|
|
out, err = cap.readouterr()
|
|
assert out == "hello"
|
|
assert not err
|
|
|
|
def test_just_err_capture(self):
|
|
with self.getcapture(out=False, err=True) as cap:
|
|
sys.stdout.write("hello")
|
|
sys.stderr.write("world")
|
|
out, err = cap.readouterr()
|
|
assert err == "world"
|
|
assert not out
|
|
|
|
def test_stdin_restored(self):
|
|
old = sys.stdin
|
|
with self.getcapture(in_=True):
|
|
newstdin = sys.stdin
|
|
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")
|
|
with self.getcapture():
|
|
pytest.raises(IOError, sys.stdin.read)
|
|
|
|
|
|
class TestStdCaptureFD(TestStdCapture):
|
|
pytestmark = needsosdup
|
|
captureclass = staticmethod(StdCaptureFD)
|
|
|
|
def test_simple_only_fd(self, testdir):
|
|
testdir.makepyfile(
|
|
"""\
|
|
import os
|
|
def test_x():
|
|
os.write(1, b"hello\\n")
|
|
assert 0
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess()
|
|
result.stdout.fnmatch_lines(
|
|
"""
|
|
*test_x*
|
|
*assert 0*
|
|
*Captured stdout*
|
|
"""
|
|
)
|
|
|
|
def test_intermingling(self):
|
|
with self.getcapture() as cap:
|
|
os.write(1, b"1")
|
|
sys.stdout.write(str(2))
|
|
sys.stdout.flush()
|
|
os.write(1, b"3")
|
|
os.write(2, b"a")
|
|
sys.stderr.write("b")
|
|
sys.stderr.flush()
|
|
os.write(2, b"c")
|
|
out, err = cap.readouterr()
|
|
assert out == "123"
|
|
assert err == "abc"
|
|
|
|
def test_many(self, capfd):
|
|
with lsof_check():
|
|
for i in range(10):
|
|
cap = StdCaptureFD()
|
|
cap.stop_capturing()
|
|
|
|
|
|
class TestStdCaptureFDinvalidFD:
|
|
pytestmark = needsosdup
|
|
|
|
def test_stdcapture_fd_invalid_fd(self, testdir):
|
|
testdir.makepyfile(
|
|
"""
|
|
import os
|
|
from _pytest import capture
|
|
|
|
def StdCaptureFD(out=True, err=True, in_=True):
|
|
return capture.MultiCapture(out, err, in_, Capture=capture.FDCapture)
|
|
|
|
def test_stdout():
|
|
os.close(1)
|
|
cap = StdCaptureFD(out=True, err=False, in_=False)
|
|
assert repr(cap.out) == "<FDCapture 1 oldfd=None _state=None>"
|
|
cap.stop_capturing()
|
|
|
|
def test_stderr():
|
|
os.close(2)
|
|
cap = StdCaptureFD(out=False, err=True, in_=False)
|
|
assert repr(cap.err) == "<FDCapture 2 oldfd=None _state=None>"
|
|
cap.stop_capturing()
|
|
|
|
def test_stdin():
|
|
os.close(0)
|
|
cap = StdCaptureFD(out=False, err=False, in_=True)
|
|
assert repr(cap.in_) == "<FDCapture 0 oldfd=None _state=None>"
|
|
cap.stop_capturing()
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess("--capture=fd")
|
|
assert result.ret == 0
|
|
assert result.parseoutcomes()["passed"] == 3
|
|
|
|
|
|
def test_capture_not_started_but_reset():
|
|
capsys = StdCapture()
|
|
capsys.stop_capturing()
|
|
|
|
|
|
def test_using_capsys_fixture_works_with_sys_stdout_encoding(capsys):
|
|
test_text = "test text"
|
|
|
|
print(test_text.encode(sys.stdout.encoding, "replace"))
|
|
(out, err) = capsys.readouterr()
|
|
assert out
|
|
assert err == ""
|
|
|
|
|
|
def test_capsys_results_accessible_by_attribute(capsys):
|
|
sys.stdout.write("spam")
|
|
sys.stderr.write("eggs")
|
|
capture_result = capsys.readouterr()
|
|
assert capture_result.out == "spam"
|
|
assert capture_result.err == "eggs"
|
|
|
|
|
|
@needsosdup
|
|
@pytest.mark.parametrize("use", [True, False])
|
|
def test_fdcapture_tmpfile_remains_the_same(tmpfile, use):
|
|
if not use:
|
|
tmpfile = True
|
|
cap = StdCaptureFD(out=False, err=tmpfile)
|
|
try:
|
|
cap.start_capturing()
|
|
capfile = cap.err.tmpfile
|
|
cap.readouterr()
|
|
finally:
|
|
cap.stop_capturing()
|
|
capfile2 = cap.err.tmpfile
|
|
assert capfile2 == capfile
|
|
|
|
|
|
@needsosdup
|
|
def test_close_and_capture_again(testdir):
|
|
testdir.makepyfile(
|
|
"""
|
|
import os
|
|
def test_close():
|
|
os.close(1)
|
|
def test_capture_again():
|
|
os.write(1, b"hello\\n")
|
|
assert 0
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess()
|
|
result.stdout.fnmatch_lines(
|
|
"""
|
|
*test_capture_again*
|
|
*assert 0*
|
|
*stdout*
|
|
*hello*
|
|
"""
|
|
)
|
|
|
|
|
|
@pytest.mark.parametrize("method", ["SysCapture", "FDCapture"])
|
|
def test_capturing_and_logging_fundamentals(testdir, method):
|
|
if method == "StdCaptureFD" and not hasattr(os, "dup"):
|
|
pytest.skip("need os.dup")
|
|
# here we check a fundamental feature
|
|
p = testdir.makepyfile(
|
|
"""
|
|
import sys, os
|
|
import py, logging
|
|
from _pytest import capture
|
|
cap = capture.MultiCapture(out=False, in_=False,
|
|
Capture=capture.%s)
|
|
cap.start_capturing()
|
|
|
|
logging.warning("hello1")
|
|
outerr = cap.readouterr()
|
|
print("suspend, captured %%s" %%(outerr,))
|
|
logging.warning("hello2")
|
|
|
|
cap.pop_outerr_to_orig()
|
|
logging.warning("hello3")
|
|
|
|
outerr = cap.readouterr()
|
|
print("suspend2, captured %%s" %% (outerr,))
|
|
"""
|
|
% (method,)
|
|
)
|
|
result = testdir.runpython(p)
|
|
result.stdout.fnmatch_lines(
|
|
"""
|
|
suspend, captured*hello1*
|
|
suspend2, captured*WARNING:root:hello3*
|
|
"""
|
|
)
|
|
result.stderr.fnmatch_lines(
|
|
"""
|
|
WARNING:root:hello2
|
|
"""
|
|
)
|
|
assert "atexit" not in result.stderr.str()
|
|
|
|
|
|
def test_error_attribute_issue555(testdir):
|
|
testdir.makepyfile(
|
|
"""
|
|
import sys
|
|
def test_capattr():
|
|
assert sys.stdout.errors == "strict"
|
|
assert sys.stderr.errors == "strict"
|
|
"""
|
|
)
|
|
reprec = testdir.inline_run()
|
|
reprec.assertoutcome(passed=1)
|
|
|
|
|
|
@pytest.mark.skipif(
|
|
not sys.platform.startswith("win") and sys.version_info[:2] >= (3, 6),
|
|
reason="only py3.6+ on windows",
|
|
)
|
|
def test_py36_windowsconsoleio_workaround_non_standard_streams():
|
|
"""
|
|
Ensure _py36_windowsconsoleio_workaround function works with objects that
|
|
do not implement the full ``io``-based stream protocol, for example execnet channels (#2666).
|
|
"""
|
|
from _pytest.capture import _py36_windowsconsoleio_workaround
|
|
|
|
class DummyStream:
|
|
def write(self, s):
|
|
pass
|
|
|
|
stream = DummyStream()
|
|
_py36_windowsconsoleio_workaround(stream)
|
|
|
|
|
|
def test_dontreadfrominput_has_encoding(testdir):
|
|
testdir.makepyfile(
|
|
"""
|
|
import sys
|
|
def test_capattr():
|
|
# should not raise AttributeError
|
|
assert sys.stdout.encoding
|
|
assert sys.stderr.encoding
|
|
"""
|
|
)
|
|
reprec = testdir.inline_run()
|
|
reprec.assertoutcome(passed=1)
|
|
|
|
|
|
def test_crash_on_closing_tmpfile_py27(testdir):
|
|
p = testdir.makepyfile(
|
|
"""
|
|
import threading
|
|
import sys
|
|
|
|
printing = threading.Event()
|
|
|
|
def spam():
|
|
f = sys.stderr
|
|
print('SPAMBEFORE', end='', file=f)
|
|
printing.set()
|
|
|
|
while True:
|
|
try:
|
|
f.flush()
|
|
except (OSError, ValueError):
|
|
break
|
|
|
|
def test_spam_in_thread():
|
|
t = threading.Thread(target=spam)
|
|
t.daemon = True
|
|
t.start()
|
|
|
|
printing.wait()
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess(str(p))
|
|
assert result.ret == 0
|
|
assert result.stderr.str() == ""
|
|
result.stdout.no_fnmatch_line("*IOError*")
|
|
|
|
|
|
def test_pickling_and_unpickling_encoded_file():
|
|
# See https://bitbucket.org/pytest-dev/pytest/pull-request/194
|
|
# pickle.loads() raises infinite recursion if
|
|
# EncodedFile.__getattr__ is not implemented properly
|
|
ef = capture.EncodedFile(None, None)
|
|
ef_as_str = pickle.dumps(ef)
|
|
pickle.loads(ef_as_str)
|
|
|
|
|
|
def test_global_capture_with_live_logging(testdir):
|
|
# Issue 3819
|
|
# capture should work with live cli logging
|
|
|
|
# Teardown report seems to have the capture for the whole process (setup, capture, teardown)
|
|
testdir.makeconftest(
|
|
"""
|
|
def pytest_runtest_logreport(report):
|
|
if "test_global" in report.nodeid:
|
|
if report.when == "teardown":
|
|
with open("caplog", "w") as f:
|
|
f.write(report.caplog)
|
|
with open("capstdout", "w") as f:
|
|
f.write(report.capstdout)
|
|
"""
|
|
)
|
|
|
|
testdir.makepyfile(
|
|
"""
|
|
import logging
|
|
import sys
|
|
import pytest
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
@pytest.fixture
|
|
def fix1():
|
|
print("fix setup")
|
|
logging.info("fix setup")
|
|
yield
|
|
logging.info("fix teardown")
|
|
print("fix teardown")
|
|
|
|
def test_global(fix1):
|
|
print("begin test")
|
|
logging.info("something in test")
|
|
print("end test")
|
|
"""
|
|
)
|
|
result = testdir.runpytest_subprocess("--log-cli-level=INFO")
|
|
assert result.ret == 0
|
|
|
|
with open("caplog", "r") as f:
|
|
caplog = f.read()
|
|
|
|
assert "fix setup" in caplog
|
|
assert "something in test" in caplog
|
|
assert "fix teardown" in caplog
|
|
|
|
with open("capstdout", "r") as f:
|
|
capstdout = f.read()
|
|
|
|
assert "fix setup" in capstdout
|
|
assert "begin test" in capstdout
|
|
assert "end test" in capstdout
|
|
assert "fix teardown" in capstdout
|
|
|
|
|
|
@pytest.mark.parametrize("capture_fixture", ["capsys", "capfd"])
|
|
def test_capture_with_live_logging(testdir, capture_fixture):
|
|
# Issue 3819
|
|
# capture should work with live cli logging
|
|
|
|
testdir.makepyfile(
|
|
"""
|
|
import logging
|
|
import sys
|
|
|
|
logger = logging.getLogger(__name__)
|
|
|
|
def test_capture({0}):
|
|
print("hello")
|
|
sys.stderr.write("world\\n")
|
|
captured = {0}.readouterr()
|
|
assert captured.out == "hello\\n"
|
|
assert captured.err == "world\\n"
|
|
|
|
logging.info("something")
|
|
print("next")
|
|
logging.info("something")
|
|
|
|
captured = {0}.readouterr()
|
|
assert captured.out == "next\\n"
|
|
""".format(
|
|
capture_fixture
|
|
)
|
|
)
|
|
|
|
result = testdir.runpytest_subprocess("--log-cli-level=INFO")
|
|
assert result.ret == 0
|
|
|
|
|
|
def test_typeerror_encodedfile_write(testdir):
|
|
"""It should behave the same with and without output capturing (#4861)."""
|
|
p = testdir.makepyfile(
|
|
"""
|
|
def test_fails():
|
|
import sys
|
|
sys.stdout.write(b"foo")
|
|
"""
|
|
)
|
|
result_without_capture = testdir.runpytest("-s", str(p))
|
|
result_with_capture = testdir.runpytest(str(p))
|
|
|
|
assert result_with_capture.ret == result_without_capture.ret
|
|
result_with_capture.stdout.fnmatch_lines(
|
|
["E * TypeError: write() argument must be str, not bytes"]
|
|
)
|