def test_bisect_line_finding(self):
secs = 3
date = datetime(year=2000, month=1, day=1, second=secs)
backtracker = BacktrackSearcher("", None, None)
offset = backtracker._find_left(self.opened_file, date, {})
assert offset == secs * self.line_padding
assert self.opened_file._seek_count < 35
def investigate(self, original_front_input, forced_log_type=None):
clues = defaultdict(itertools.chain)
for host, path, super_parser in self._log_type.files_to_parse(forced_log_type):
if host == "localhost":
searcher = BacktrackSearcher(path, self._investigation_step, super_parser)
InvestigationUtils.merge_clue_dicts(clues, searcher.search(original_front_input))
else:
raise NotImplementedError("Cannot operate on %s which is different than %s" % (host, "localhost"))
return clues
def test_bisect_right_when_lines_are_repeated(self):
secs = 3
date = datetime(year=2000, month=1, day=1, second=secs)
backtracker = BacktrackSearcher("", None, None)
offset = backtracker._find_right(self.file_with_repeated_lines, date, {})
line_no = (secs + 1) * self.repetitions - 1
assert offset == line_no * self.line_padding
assert self.file_with_repeated_lines._seek_count < 35
def test_bisect_last_line_of_file(self):
investigation_step = InvestigationStep(
None, {
'date': {
InvestigationStep.LEFT_BOUND: self.dummy_date,
InvestigationStep.RIGHT_BOUND: datetime.max
}
}
)
backtracker = BacktrackSearcher("", investigation_step, self.super_parser)
offset = backtracker._find_right(self.opened_file)
assert offset == self.number_of_lines * self.line_padding
assert self.opened_file._seek_count < 35
def test_bisect_first_line_of_file(self):
investigation_step = InvestigationStep(
None, {
'date': {
InvestigationStep.LEFT_BOUND: datetime.min,
InvestigationStep.RIGHT_BOUND: self.dummy_date
}
}
)
backtracker = BacktrackSearcher("", investigation_step, self.super_parser)
offset = backtracker._find_left(self.opened_file)
assert offset == 0
assert self.opened_file._seek_count < 35
def test_bisect_line_finding(self):
secs = 3
date = datetime(year=2000, month=1, day=1, second=secs)
investigation_step = InvestigationStep(
None, {
'date': {
InvestigationStep.LEFT_BOUND: date,
InvestigationStep.RIGHT_BOUND: self.dummy_date
}
}
)
backtracker = BacktrackSearcher("", investigation_step, self.super_parser)
offset = backtracker._find_left(self.opened_file)
assert offset == secs * self.line_padding
assert self.opened_file._seek_count < 35
def test_bisect_right_when_lines_are_repeated(self):
secs = 3
date = datetime(year=2000, month=1, day=1, second=secs)
investigation_step = InvestigationStep(
None, {
'date': {
InvestigationStep.LEFT_BOUND: self.dummy_date,
InvestigationStep.RIGHT_BOUND: date
}
}
)
backtracker = BacktrackSearcher("", investigation_step, self.super_parser)
offset = backtracker._find_right(self.file_with_repeated_lines)
line_no = (secs + 1) * self.repetitions
assert offset == line_no * self.line_padding
assert self.file_with_repeated_lines._seek_count < 35
def test_bisect_last_line_of_file(self):
backtracker = BacktrackSearcher("", None, None)
offset = backtracker._find_right(self.opened_file, datetime.max, {})
assert offset == (self.number_of_lines - 1) * self.line_padding
assert self.opened_file._seek_count < 35
def test_bisect_first_line_of_file(self):
backtracker = BacktrackSearcher("", None, None)
offset = backtracker._find_left(self.opened_file, datetime.min, {})
assert offset == 0
assert self.opened_file._seek_count < 35
