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test_filesink_rotation.py
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import pytest
import datetime
import os
import time
import tempfile
import pathlib
import platform
import builtins
from collections import namedtuple
import loguru
from loguru import logger
@pytest.fixture
def tmpdir_local(reset_logger):
# Pytest 'tmpdir' creates directories in /tmp, but /tmp does not support xattr, tests would fail
with tempfile.TemporaryDirectory(dir=".") as tempdir:
yield pathlib.Path(tempdir)
logger.remove() # Deleting file not possible if still in use by Loguru
@pytest.fixture
def monkeypatch_filesystem(monkeypatch):
def monkeypatch_filesystem(raising=None, crtime=None, patch_xattr=False):
filesystem = {}
__open__ = open
__stat_result__ = os.stat_result
__stat__ = os.stat
class StatWrapper:
def __init__(self, wrapped, timestamp=None):
self._wrapped = wrapped
self._timestamp = timestamp
def __getattr__(self, name):
if name == raising:
raise AttributeError
if name == crtime:
return self._timestamp
return getattr(self._wrapped, name)
def patched_stat(filepath):
stat = __stat__(filepath)
wrapped = StatWrapper(stat, filesystem.get(os.path.abspath(filepath)))
return wrapped
def patched_open(filepath, *args, **kwargs):
if not os.path.exists(filepath):
filesystem[os.path.abspath(filepath)] = loguru._datetime.datetime.now().timestamp()
return __open__(filepath, *args, **kwargs)
def patched_setxattr(filepath, attr, val, *arg, **kwargs):
filesystem[(os.path.abspath(filepath), attr)] = val
def patched_getxattr(filepath, attr, *args, **kwargs):
try:
return filesystem[(os.path.abspath(filepath), attr)]
except KeyError:
raise OSError
monkeypatch.setattr(os, "stat_result", StatWrapper(__stat_result__))
monkeypatch.setattr(os, "stat", patched_stat)
monkeypatch.setattr(builtins, "open", patched_open)
if patch_xattr:
monkeypatch.setattr(os, "setxattr", patched_setxattr, raising=False)
monkeypatch.setattr(os, "getxattr", patched_getxattr, raising=False)
return monkeypatch_filesystem
@pytest.fixture
def windows_filesystem(monkeypatch, monkeypatch_filesystem):
monkeypatch.setattr(platform, "system", lambda: "Windows")
monkeypatch_filesystem(raising="st_birthtime", crtime="st_ctime")
@pytest.fixture
def darwin_filesystem(monkeypatch, monkeypatch_filesystem):
monkeypatch.setattr(platform, "system", lambda: "Darwin")
monkeypatch.delattr(os, "setxattr", raising=False)
monkeypatch.delattr(os, "getxattr", raising=False)
monkeypatch_filesystem(crtime="st_birthtime")
@pytest.fixture
def linux_filesystem(monkeypatch, monkeypatch_filesystem):
monkeypatch.setattr(platform, "system", lambda: "Linux")
monkeypatch_filesystem(raising="st_birthtime", crtime="st_mtime", patch_xattr=True)
@pytest.fixture
def linux_no_xattr_filesystem(monkeypatch, monkeypatch_filesystem):
def raising(*args, **kwargs):
raise OSError
monkeypatch.setattr(platform, "system", lambda: "Linux")
monkeypatch_filesystem(raising="st_birthtime", crtime="st_mtime")
monkeypatch.setattr(os, "setxattr", raising, raising=False)
monkeypatch.setattr(os, "getxattr", raising, raising=False)
def test_renaming(monkeypatch_date, tmpdir):
i = logger.add(str(tmpdir.join("file.log")), rotation=0, format="{message}")
monkeypatch_date(2018, 1, 1, 0, 0, 0, 0)
logger.debug("a")
assert tmpdir.join("file.log").read() == "a\n"
assert tmpdir.join("file.2018-01-01_00-00-00_000000.log").read() == ""
monkeypatch_date(2019, 1, 1, 0, 0, 0, 0)
logger.debug("b")
assert tmpdir.join("file.log").read() == "b\n"
assert tmpdir.join("file.2019-01-01_00-00-00_000000.log").read() == "a\n"
assert tmpdir.join("file.2018-01-01_00-00-00_000000.log").read() == ""
def test_no_renaming(monkeypatch_date, tmpdir):
monkeypatch_date(2018, 1, 1, 0, 0, 0, 0)
i = logger.add(str(tmpdir.join("file_{time}.log")), rotation=0, format="{message}")
monkeypatch_date(2019, 1, 1, 0, 0, 0, 0)
logger.debug("a")
assert tmpdir.join("file_2018-01-01_00-00-00_000000.log").read() == ""
assert tmpdir.join("file_2019-01-01_00-00-00_000000.log").read() == "a\n"
monkeypatch_date(2020, 1, 1, 0, 0, 0, 0)
logger.debug("b")
assert tmpdir.join("file_2018-01-01_00-00-00_000000.log").read() == ""
assert tmpdir.join("file_2019-01-01_00-00-00_000000.log").read() == "a\n"
assert tmpdir.join("file_2020-01-01_00-00-00_000000.log").read() == "b\n"
def test_delayed(monkeypatch_date, tmpdir):
monkeypatch_date(2018, 1, 1, 0, 0, 0, 0)
i = logger.add(str(tmpdir.join("file.log")), rotation=0, delay=True, format="{message}")
logger.debug("a")
logger.remove(i)
assert len(tmpdir.listdir()) == 2
assert tmpdir.join("file.log").read() == "a\n"
assert tmpdir.join("file.2018-01-01_00-00-00_000000.log").read() == ""
def test_delayed_early_remove(monkeypatch_date, tmpdir):
monkeypatch_date(2018, 1, 1, 0, 0, 0, 0)
i = logger.add(str(tmpdir.join("file.log")), rotation=0, delay=True, format="{message}")
logger.remove(i)
assert len(tmpdir.listdir()) == 0
@pytest.mark.parametrize("size", [8, 8.0, 7.99, "8 B", "8e-6MB", "0.008 kiB", "64b"])
def test_size_rotation(monkeypatch_date, tmpdir, size):
monkeypatch_date(2018, 1, 1, 0, 0, 0, 0)
file = tmpdir.join("test_{time}.log")
i = logger.add(str(file), format="{message}", rotation=size, mode="w")
monkeypatch_date(2018, 1, 1, 0, 0, 1, 0)
logger.debug("abcde")
monkeypatch_date(2018, 1, 1, 0, 0, 2, 0)
logger.debug("fghij")
monkeypatch_date(2018, 1, 1, 0, 0, 3, 0)
logger.debug("klmno")
monkeypatch_date(2018, 1, 1, 0, 0, 4, 0)
logger.remove(i)
assert len(tmpdir.listdir()) == 3
assert tmpdir.join("test_2018-01-01_00-00-00_000000.log").read() == "abcde\n"
assert tmpdir.join("test_2018-01-01_00-00-02_000000.log").read() == "fghij\n"
assert tmpdir.join("test_2018-01-01_00-00-03_000000.log").read() == "klmno\n"
@pytest.mark.parametrize(
"when, hours",
[
# hours = [Should not trigger, should trigger, should not trigger, should trigger, should trigger]
("13", [0, 1, 20, 4, 24]),
("13:00", [0.2, 0.9, 23, 1, 48]),
("13:00:00", [0.5, 1.5, 10, 15, 72]),
("13:00:00.123456", [0.9, 2, 10, 15, 256]),
("11:00", [22.9, 0.2, 23, 1, 24]),
("w0", [11, 1, 24 * 7 - 1, 1, 24 * 7]),
("W0 at 00:00", [10, 24 * 7 - 5, 0.1, 24 * 30, 24 * 14]),
("W6", [24, 24 * 28, 24 * 5, 24, 364 * 24]),
("saturday", [25, 25 * 12, 0, 25 * 12, 24 * 8]),
("w6 at 00", [8, 24 * 7, 24 * 6, 24, 24 * 8]),
(" W6 at 13 ", [0.5, 1, 24 * 6, 24 * 6, 365 * 24]),
("w2 at 11:00:00 AM", [48 + 22, 3, 24 * 6, 24, 366 * 24]),
("MoNdAy at 11:00:30.123", [22, 24, 24, 24 * 7, 24 * 7]),
("sunday", [0.1, 24 * 7 - 10, 24, 24 * 6, 24 * 7]),
("SUNDAY at 11:00", [1, 24 * 7, 2, 24 * 7, 30 * 12]),
("sunDAY at 1:0:0.0 pm", [0.9, 0.2, 24 * 7 - 2, 3, 24 * 8]),
(datetime.time(15), [2, 3, 19, 5, 24]),
(datetime.time(18, 30, 11, 123), [1, 5.51, 20, 24, 40]),
("2 h", [1, 2, 0.9, 0.5, 10]),
("1 hour", [0.5, 1, 0.1, 100, 1000]),
("7 days", [24 * 7 - 1, 1, 48, 24 * 10, 24 * 365]),
("1h 30 minutes", [1.4, 0.2, 1, 2, 10]),
("1 w, 2D", [24 * 8, 24 * 2, 24, 24 * 9, 24 * 9]),
("1.5d", [30, 10, 0.9, 48, 35]),
("1.222 hours, 3.44s", [1.222, 0.1, 1, 1.2, 2]),
(datetime.timedelta(hours=1), [0.9, 0.2, 0.7, 0.5, 3]),
(datetime.timedelta(minutes=30), [0.48, 0.04, 0.07, 0.44, 0.5]),
("hourly", [0.9, 0.2, 0.8, 3, 1]),
("daily", [11, 1, 23, 1, 24]),
("WEEKLY", [11, 2, 24 * 6, 24, 24 * 7]),
("mOnthLY", [0, 24 * 13, 29 * 24, 60 * 24, 24 * 35]),
("monthly", [10 * 24, 30 * 24 * 6, 24, 24 * 7, 24 * 31]),
("Yearly ", [100, 24 * 7 * 30, 24 * 300, 24 * 100, 24 * 400]),
],
)
def test_time_rotation(monkeypatch_date, darwin_filesystem, tmpdir, when, hours):
now = datetime.datetime(2017, 6, 18, 12, 0, 0) # Sunday
monkeypatch_date(
now.year, now.month, now.day, now.hour, now.minute, now.second, now.microsecond
)
i = logger.add(str(tmpdir.join("test_{time}.log")), format="{message}", rotation=when, mode="w")
for h, m in zip(hours, ["a", "b", "c", "d", "e"]):
now += datetime.timedelta(hours=h)
monkeypatch_date(
now.year, now.month, now.day, now.hour, now.minute, now.second, now.microsecond
)
logger.debug(m)
logger.remove(i)
assert [f.read() for f in sorted(tmpdir.listdir())] == ["a\n", "b\nc\n", "d\n", "e\n"]
def test_time_rotation_dst(monkeypatch_date, darwin_filesystem, tmpdir):
monkeypatch_date(2018, 10, 27, 5, 0, 0, 0, "CET", 3600)
i = logger.add(str(tmpdir.join("test_{time}.log")), format="{message}", rotation="1 day")
logger.debug("First")
monkeypatch_date(2018, 10, 28, 5, 30, 0, 0, "CEST", 7200)
logger.debug("Second")
monkeypatch_date(2018, 10, 29, 6, 0, 0, 0, "CET", 3600)
logger.debug("Third")
logger.remove(i)
assert len(tmpdir.listdir()) == 3
assert tmpdir.join("test_2018-10-27_05-00-00_000000.log").read() == "First\n"
assert tmpdir.join("test_2018-10-28_05-30-00_000000.log").read() == "Second\n"
assert tmpdir.join("test_2018-10-29_06-00-00_000000.log").read() == "Third\n"
@pytest.mark.parametrize("delay", [False, True])
def test_time_rotation_reopening_native(tmpdir_local, delay):
filepath = str(tmpdir_local / "test.log")
i = logger.add(filepath, format="{message}", delay=delay, rotation="1 s")
logger.info("1")
time.sleep(0.75)
logger.info("2")
logger.remove(i)
i = logger.add(filepath, format="{message}", delay=delay, rotation="1 s")
logger.info("3")
assert len(list(tmpdir_local.iterdir())) == 1
assert (tmpdir_local / "test.log").read_text() == "1\n2\n3\n"
time.sleep(0.5)
logger.info("4")
assert len(list(tmpdir_local.iterdir())) == 2
assert (tmpdir_local / "test.log").read_text() == "4\n"
logger.remove(i)
time.sleep(0.5)
i = logger.add(filepath, format="{message}", delay=delay, rotation="1 s")
logger.info("5")
assert len(list(tmpdir_local.iterdir())) == 2
assert (tmpdir_local / "test.log").read_text() == "4\n5\n"
time.sleep(0.75)
logger.info("6")
logger.remove(i)
assert len(list(tmpdir_local.iterdir())) == 3
assert (tmpdir_local / "test.log").read_text() == "6\n"
def rotation_reopening(tmpdir, monkeypatch_date, delay):
monkeypatch_date(2018, 10, 27, 5, 0, 0, 0)
filepath = tmpdir.join("test.log")
i = logger.add(str(filepath), format="{message}", delay=delay, rotation="2 h")
logger.info("1")
monkeypatch_date(2018, 10, 27, 6, 30, 0, 0)
logger.info("2")
logger.remove(i)
i = logger.add(str(filepath), format="{message}", delay=delay, rotation="2 h")
logger.info("3")
assert len(tmpdir.listdir()) == 1
assert filepath.read() == "1\n2\n3\n"
monkeypatch_date(2018, 10, 27, 7, 30, 0, 0)
logger.info("4")
assert len(tmpdir.listdir()) == 2
assert filepath.read() == "4\n"
logger.remove(i)
monkeypatch_date(2018, 10, 27, 8, 30, 0, 0)
i = logger.add(str(filepath), format="{message}", delay=delay, rotation="2 h")
logger.info("5")
assert len(tmpdir.listdir()) == 2
assert filepath.read() == "4\n5\n"
monkeypatch_date(2018, 10, 27, 10, 0, 0, 0)
logger.info("6")
logger.remove(i)
assert len(tmpdir.listdir()) == 3
assert filepath.read() == "6\n"
@pytest.mark.parametrize("delay", [False, True])
def test_time_rotation_reopening_windows(tmpdir, monkeypatch_date, windows_filesystem, delay):
rotation_reopening(tmpdir, monkeypatch_date, delay)
@pytest.mark.parametrize("delay", [False, True])
def test_time_rotation_reopening_darwin(tmpdir, monkeypatch_date, darwin_filesystem, delay):
rotation_reopening(tmpdir, monkeypatch_date, delay)
@pytest.mark.parametrize("delay", [False, True])
def test_time_rotation_reopening_linux(tmpdir, monkeypatch_date, linux_filesystem, delay):
rotation_reopening(tmpdir, monkeypatch_date, delay)
@pytest.mark.parametrize("delay", [False, True])
def test_time_rotation_reopening_linux_no_xattr(
tmpdir, monkeypatch_date, linux_no_xattr_filesystem, delay
):
rotation_reopening(tmpdir, monkeypatch_date, delay)
def test_function_rotation(monkeypatch_date, tmpdir):
monkeypatch_date(2018, 1, 1, 0, 0, 0, 0)
x = iter([False, True, False])
i = logger.add(
str(tmpdir.join("test_{time}.log")), rotation=lambda *_: next(x), format="{message}"
)
logger.debug("a")
assert tmpdir.join("test_2018-01-01_00-00-00_000000.log").read() == "a\n"
monkeypatch_date(2019, 1, 1, 0, 0, 0, 0)
logger.debug("b")
assert tmpdir.join("test_2019-01-01_00-00-00_000000.log").read() == "b\n"
monkeypatch_date(2020, 1, 1, 0, 0, 0, 0)
logger.debug("c")
assert len(tmpdir.listdir()) == 2
assert tmpdir.join("test_2018-01-01_00-00-00_000000.log").read() == "a\n"
assert tmpdir.join("test_2019-01-01_00-00-00_000000.log").read() == "b\nc\n"
@pytest.mark.parametrize("mode", ["w", "x"])
def test_rotation_at_remove(monkeypatch_date, tmpdir, mode):
monkeypatch_date(2018, 1, 1, 0, 0, 0, 0)
i = logger.add(
str(tmpdir.join("test_{time:YYYY}.log")), rotation="10 MB", mode=mode, format="{message}"
)
logger.debug("test")
logger.remove(i)
assert len(tmpdir.listdir()) == 1
assert tmpdir.join("test_2018.log").read() == "test\n"
@pytest.mark.parametrize("mode", ["a", "a+"])
def test_no_rotation_at_remove(tmpdir, mode):
i = logger.add(str(tmpdir.join("test.log")), rotation="10 MB", mode=mode, format="{message}")
logger.debug("test")
logger.remove(i)
assert len(tmpdir.listdir()) == 1
assert tmpdir.join("test.log").read() == "test\n"
@pytest.mark.parametrize(
"rotation",
[
"w7",
"w10",
"w-1",
"h",
"M",
"w1at13",
"www",
"13 at w2",
"w",
"K",
"tufy MB",
"111.111.111 kb",
"3 Ki",
"2017.11.12",
"11:99",
"monday at 2017",
"e days",
"2 days 8 pouooi",
"foobar",
"w5 at [not|a|time]",
"[not|a|day] at 12:00",
object(),
os,
datetime.date(2017, 11, 11),
datetime.datetime.now(),
1j,
],
)
def test_invalid_rotation(rotation):
with pytest.raises(ValueError):
logger.add("test.log", rotation=rotation)