def test_tail_file_elatest2(rmlogs):
"""
CASE 2: rotate elatest, new elatest, update and process
"""
import shutil
EXP_LATEST = 'exp_latest.log'
PRE_LATEST = 'tailtest3_2016-03-30.log'
finfo = tcfg['from'][0]['file']
bdir = finfo['dir']
epath = os.path.join(bdir, EXP_LATEST)
with open(epath, 'w') as f:
f.write('A\n')
ptrn = "tailtest3_*-*-*.log"
ftail = FileTailer(bdir, ptrn, 'wdfwd.tail', pos_dir, fcfg, 0,
elatest=EXP_LATEST)
ftail.update_target()
rotated, psent_pos, sent_line = ftail.tmain()
assert ftail.target_path.endswith(EXP_LATEST)
assert ftail.elatest_fid is not None
assert sent_line == 1
elatest_sent_pos = ftail.get_sent_pos()
with open(epath, 'a') as f:
f.write('B\n')
f.write('C\n')
# rotate latest
pre_sent_pos = ftail.get_sent_pos()
pre_path = os.path.join(bdir, PRE_LATEST)
shutil.move(epath, pre_path)
assert os.path.isfile(pre_path)
assert not os.path.isfile(epath)
# new elatest
with open(epath, 'w') as f:
f.write('a\n')
f.write('b\n')
f.write('c\n')
time.sleep(1)
rotated, psent_pos, sent_line = ftail.tmain()
assert rotated
# pre-elatest file is target
assert ftail.target_path == pre_path
# pre-elatest sent_pos is equal to elatest's
assert psent_pos == elatest_sent_pos
# send remain 2 lines
assert sent_line == 2
# now new elatest is target
ftail.update_target()
assert ftail.target_path == epath
assert ftail.may_send_newlines() == 3
def test_tail_file_elatest3(rmlogs):
"""
CASE 3: rotate elatest, reversed pre-elatest order
"""
import shutil
EXP_LATEST = 'z1_action.log'
PRE_LATEST = 'z1_action.log.1'
PRE_LATEST2 = 'z1_action.log.2'
finfo = tcfg['from'][0]['file']
bdir = finfo['dir']
epath = os.path.join(bdir, EXP_LATEST)
with open(epath, 'w') as f:
f.write('A\n')
ptrn = "z*_action.*"
ftail = FileTailer(bdir, ptrn, 'wdfwd.tail', pos_dir, fcfg, 0,
elatest=EXP_LATEST, reverse_order=True)
ftail.update_target()
rotated, psent_pos, sent_line = ftail.tmain()
assert ftail.target_path.endswith(EXP_LATEST)
assert ftail.elatest_fid is not None
assert sent_line == 1
elatest_sent_pos = ftail.get_sent_pos()
with open(epath, 'a') as f:
f.write('B\n')
f.write('C\n')
# rotate latest
pre_sent_pos = ftail.get_sent_pos()
pre_path = os.path.join(bdir, PRE_LATEST)
shutil.move(epath, pre_path)
assert os.path.isfile(pre_path)
assert not os.path.isfile(epath)
# new elatest
with open(epath, 'w') as f:
f.write('a\n')
f.write('b\n')
f.write('c\n')
time.sleep(1)
rotated, psent_pos, sent_line = ftail.tmain()
assert rotated
# pre-elatest file is target
assert ftail.target_path == pre_path
# pre-elatest sent_pos is equal to elatest's
assert psent_pos == elatest_sent_pos
# send remain 2 lines
assert sent_line == 2
# now new elatest is target
ftail.update_target()
assert ftail.target_path == epath
assert ftail.may_send_newlines() == 3
# rotate again
time.sleep(2)
pre_path2 = os.path.join(bdir, PRE_LATEST2)
shutil.move(pre_path, pre_path2)
shutil.move(epath, pre_path)
rotated = ftail.handle_elatest_rotation(cur=0)
assert rotated
ftail.update_target()
assert ftail.target_path == pre_path