def test_logtail_shrink(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
warning_echo = mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
log.write('hello\nworld\n')
assert list(logtail(log.strpath)) == ['hello', 'world']
log.write('hello\nbar\n')
assert not warning_echo.called
assert list(logtail(log.strpath)) == ['hello', 'bar']
assert warning_echo.called
def test_logtail_shrink(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
warning_echo = mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
log.write('hello\nworld\n')
assert list(logtail(log.strpath)) == ['hello', 'world']
log.write('hello\nbar\n')
assert not warning_echo.called
assert list(logtail(log.strpath)) == ['hello', 'bar']
assert warning_echo.called
def test_logtail_rotated_unreadable(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
warning_echo = mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
rotated = tmpdir.join('test.log.1')
log.write('hello\nworld\n')
assert list(logtail(log.strpath)) == ['hello', 'world']
log.rename(rotated)
rotated.chmod(0o000)
log.write('new\n')
assert not warning_echo.called
assert list(logtail(log.strpath)) == ['new']
assert warning_echo.called
def test_logtail_rotated_wrong_inode(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
rotated = tmpdir.join('test.log.1')
log.write('hello\nworld\n')
assert list(logtail(log.strpath)) == ['hello', 'world']
# copy it so the rotated file has a different inode
log.copy(rotated)
rotated.write('bar\n', 'a')
log.remove()
log.write('foo\n')
assert list(logtail(log.strpath)) == ['foo']
def test_logtail_rotated_wrong_inode(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
rotated = tmpdir.join('test.log.1')
log.write('hello\nworld\n')
assert list(logtail(log.strpath)) == ['hello', 'world']
# copy it so the rotated file has a different inode
log.copy(rotated)
rotated.write('bar\n', 'a')
log.remove()
log.write('foo\n')
assert list(logtail(log.strpath)) == ['foo']
def test_logtail_rotated_unreadable(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
warning_echo = mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
rotated = tmpdir.join('test.log.1')
log.write('hello\nworld\n')
assert list(logtail(log.strpath)) == ['hello', 'world']
log.rename(rotated)
rotated.chmod(0o000)
log.write('new\n')
assert not warning_echo.called
assert list(logtail(log.strpath)) == ['new']
assert warning_echo.called
def test_logtail_bad_offset_file(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
warning_echo = mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
offset = tmpdir.join('test.log.offset')
log.write('hello\nworld\n')
assert list(logtail(log.strpath)) == ['hello', 'world']
offset.write('')
assert list(logtail(log.strpath)) == ['hello', 'world']
offset.chmod(0o400)
log.write('foo\n', 'a')
assert not warning_echo.called
assert list(logtail(log.strpath)) == ['foo']
assert warning_echo.called
assert list(logtail(log.strpath)) == ['foo']
def test_logtail_bad_offset_file(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
warning_echo = mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
offset = tmpdir.join('test.log.offset')
log.write('hello\nworld\n')
assert list(logtail(log.strpath)) == ['hello', 'world']
offset.write('')
assert list(logtail(log.strpath)) == ['hello', 'world']
offset.chmod(0o400)
log.write('foo\n', 'a')
assert not warning_echo.called
assert list(logtail(log.strpath)) == ['foo']
assert warning_echo.called
assert list(logtail(log.strpath)) == ['foo']
def test_logtail_dryrun(mocker, tmpdir, dry_run):
mocker.patch('logstapo.logtail.debug_echo')
mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
offset = tmpdir.join('test.log.offset')
log.write('hello\nworld\n')
assert list(logtail(log.strpath, dry_run=dry_run)) == ['hello', 'world']
assert offset.check() == (not dry_run)
def test_logtail_dryrun(mocker, tmpdir, dry_run):
mocker.patch('logstapo.logtail.debug_echo')
mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
offset = tmpdir.join('test.log.offset')
log.write('hello\nworld\n')
assert list(logtail(log.strpath, dry_run=dry_run)) == ['hello', 'world']
assert offset.check() == (not dry_run)
def test_logtail_bad_charset(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
garbage = bytes(bytearray(range(33, 256)))
# proper utf8
log.write('möp\n'.encode('utf-8'), mode='wb')
# not utf8
log.write('möp\n'.encode('latin1'), mode='ab')
# pure garbage
log.write(garbage, mode='ab')
lines = list(logtail(log.strpath))
assert lines == ['möp',
'm\N{REPLACEMENT CHARACTER}p',
''.join(chr(x) if x < 128 else '\N{REPLACEMENT CHARACTER}' for x in garbage)]
def test_logtail_bad_charset(mocker, tmpdir):
mocker.patch('logstapo.logtail.debug_echo')
mocker.patch('logstapo.logtail.warning_echo')
log = tmpdir.join('test.log')
garbage = bytes(bytearray(range(33, 256)))
# proper utf8
log.write('möp\n'.encode('utf-8'), mode='wb')
# not utf8
log.write('möp\n'.encode('latin1'), mode='ab')
# pure garbage
log.write(garbage, mode='ab')
lines = list(logtail(log.strpath))
assert lines == [
'möp', 'm\N{REPLACEMENT CHARACTER}p', ''.join(
chr(x) if x < 128 else '\N{REPLACEMENT CHARACTER}'
for x in garbage)
]
def test_logtail_invalid(mocker, tmpdir):
warning_echo = mocker.patch('logstapo.logtail.warning_echo')
assert list(logtail(tmpdir.join('nosuchfile').strpath)) == []
assert warning_echo.called
def _iter_log_lines(file, dry_run):
yield from logtail(file, dry_run=dry_run)
def test_logtail_invalid(mocker, tmpdir):
warning_echo = mocker.patch('logstapo.logtail.warning_echo')
assert list(logtail(tmpdir.join('nosuchfile').strpath)) == []
assert warning_echo.called
