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Merge pull request #1317 from enkore/issue/1315

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test_atime: try to open with O_NOATIME to determine support
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enkore 2016-07-12 20:14:04 +02:00 committed by GitHub
commit 841d0fd3ad
1 changed files with 14 additions and 2 deletions
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16
borg/testsuite/archiver.py
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@ -17,7 +17,7 @@
import pytest
from .. import xattr
from ..archive import Archive, ChunkBuffer, CHUNK_MAX_EXP
from ..archive import Archive, ChunkBuffer, CHUNK_MAX_EXP, flags_noatime, flags_normal
from ..archiver import Archiver
from ..cache import Cache
from ..crypto import bytes_to_long, num_aes_blocks
@ -363,8 +363,20 @@ def filter(output):
self.assert_equal(filter(info_output), filter(info_output2))
def test_atime(self):
def has_noatime(some_file):
atime_before = os.stat(some_file).st_atime_ns
try:
os.close(os.open(some_file, flags_noatime))
except PermissionError:
return False
else:
atime_after = os.stat(some_file).st_atime_ns
noatime_used = flags_noatime != flags_normal
return noatime_used and atime_before == atime_after
self.create_test_files()
atime, mtime = 123456780, 234567890
have_noatime = has_noatime('input/file1')
os.utime('input/file1', (atime, mtime))
self.cmd('init', self.repository_location)
self.cmd('create', self.repository_location + '::test', 'input')
@ -373,7 +385,7 @@ def test_atime(self):
sti = os.stat('input/file1')
sto = os.stat('output/input/file1')
assert sti.st_mtime_ns == sto.st_mtime_ns == mtime * 1e9
if hasattr(os, 'O_NOATIME'):
if have_noatime:
assert sti.st_atime_ns == sto.st_atime_ns == atime * 1e9
else:
# it touched the input file's atime while backing it up