def pytestcase_seek_event_future(dataset_dir):
"""Tests seeking at a define position (after n events)"""
filename = os.path.join(dataset_dir,
"metavision_core", "event_io", "recording_td.dat")
record = EventDatReader(filename)
assert record.current_event_index() == 0
assert record.done is False
assert record.current_time == 0
record.seek_event(13)
assert record.current_event_index() == 13
assert record.done is False
# current_time should be the timestamp of the fourteenth event
assert record.current_time == 93
def pytestcase_seek_event_negative(dataset_dir):
"""Tests seeking in the file after a negative number of events"""
filename = os.path.join(dataset_dir,
"metavision_core", "event_io", "recording_td.dat")
record = EventDatReader(filename)
assert record.current_event_index() == 0
assert record.done is False
assert record.current_time == 0
record.load_n_events(18)
assert record.current_event_index() == 18
assert record.done is False
# current_time should be the timestamp of the nineteenth event
assert record.current_time == 138
record.seek_event(-4)
assert record.current_event_index() == 0
assert record.done is False
assert record.current_time == 0
def pytestcase_seek_event_past(dataset_dir):
"""Tests seeking at a define position (after n events)"""
filename = os.path.join(dataset_dir,
"metavision_core", "event_io", "recording_td.dat")
record = EventDatReader(filename)
assert record.current_event_index() == 0
assert record.done is False
assert record.current_time == 0
record.load_n_events(18)
assert record.current_event_index() == 18
assert record.done is False
# current_time should be the timestamp of the nineteenth event
assert record.current_time == 138
record.seek_event(15)
assert record.current_event_index() == 15
assert record.done is False
# current_time should be the timestamp of the sixteenth event
assert record.current_time == 121