def __init__(self, notes, instructions, algorithm, debug=False):
self.matcher = Matcher(notes, algorithm, OvertoneInterpreter(),
self.position_changed, progress_listener=self.matched,
debug=options.debug)
self.instructions = instructions
self._position_queue = Queue()
class Tester(object):
SHUTDOWN_SENTINEL = object()
def __init__(self, notes, instructions, algorithm, debug=False):
self.matcher = Matcher(notes, algorithm, OvertoneInterpreter(),
self.position_changed, progress_listener=self.matched,
debug=options.debug)
self.instructions = instructions
self._position_queue = Queue()
def position_changed(self, matcher):
pass
def matched(self, notes, position):
sleep(0.25)
self._position_queue.put(position)
def test(self):
self.matcher.start()
try:
self._run()
finally:
self.matcher.shutdown()
while self.matcher.running:
sleep(0.2)
def _describe_interval(self, i):
if i >= 0:
interval = self.matcher.intervals[i]
else:
# i = -1, which isn't a real interval
# synthesize one here for display purposes
interval = Interval(-1.0, 0.0, [])
note_string = ', '.join(unparse_note(*note) for note in interval.notes)
return '%d (%.3f:%.3f%s)' % (i, interval.start, interval.end,
('; ' + note_string if note_string else ''))
def _run(self):
last_pos = -1
last_expected_pos = -1
for action, arg, expected_pos in self.instructions:
if action == 'pause':
print '--> Playing silence.'
self.matcher.add([])
elif action == 'play':
print '--> Playing %s.' % \
', '.join(unparse_note(*freq_to_note(f)) for f in arg)
self.matcher.add(arg)
else:
raise ValueError(action)
# wait for the matcher to call our matched() method, and for
# matched() to send us the matcher's new position through the queue
new_pos = self._position_queue.get()
if new_pos == last_pos:
message = 'Stayed at'
else:
message = 'Moved to'
# assess what happened:
stop = False
if expected_pos is None:
# we didn't care where we went (instruction ended with ?)
text_color = 'yellow'
elif new_pos != expected_pos:
# we didn't go where we expected
text_color = 'red'
stop = True
verb = 'move to' if expected_pos != last_pos else 'stay at'
expectation_string = '; expected to %s %s' % \
(verb, self._describe_interval(expected_pos))
else:
# we went where we expected
text_color = 'green'
expectation_string = ''
# display what happened
if new_pos == last_pos:
message = 'Stayed at'
else:
message = 'Moved to'
print color(text_color, '<-- %s %s%s.', message,
self._describe_interval(new_pos), expectation_string)
if stop:
break
# if we didn't care where we went on this step (i.e., the line for
# this instruction ended with '?'), save our new position as the
# last-expected position; otherwise, save the actual last-expected
# position
last_expected_pos = expected_pos if expected_pos is not None \
else new_pos
last_pos = new_pos
sleep(0.5)
