# coding: utf-8
from __future__ import unicode_literals
from collections import namedtuple
from bpython.curtsies import combined_events
from bpython.test import (FixLanguageTestCase as TestCase, unittest)
import curtsies.events
ScheduledEvent = namedtuple('ScheduledEvent', ['when', 'event'])
class EventGenerator(object):
def __init__(self, initial_events=(), scheduled_events=()):
self._events = []
self._current_tick = 0
for e in initial_events:
self.schedule_event(e, 0)
for e, w in scheduled_events:
self.schedule_event(e, w)
def schedule_event(self, event, when):
self._events.append(ScheduledEvent(when, event))
self._events.sort()
def send(self, timeout=None):
if timeout not in [None, 0]:
raise ValueError('timeout value %r not supported' % timeout)
if not self._events:
return None
if self._events[0].when <= self._current_tick:
return self._events.pop(0).event
if timeout == 0:
return None
elif timeout is None:
e = self._events.pop(0)
self._current_tick = e.when
return e.event
else:
raise ValueError('timeout value %r not supported' % timeout)
def tick(self, dt=1):
self._current_tick += dt
return self._current_tick
class TestCurtsiesPasteDetection(TestCase):
def test_paste_threshold(self):
eg = EventGenerator(list('abc'))
cb = combined_events(eg, paste_threshold=3)
e = next(cb)
self.assertIsInstance(e, curtsies.events.PasteEvent)
self.assertEqual(e.events, list('abc'))
self.assertEqual(next(cb), None)
eg = EventGenerator(list('abc'))
cb = combined_events(eg, paste_threshold=4)
self.assertEqual(next(cb), 'a')
self.assertEqual(next(cb), 'b')
self.assertEqual(next(cb), 'c')
self.assertEqual(next(cb), None)
def test_set_timeout(self):
eg = EventGenerator('a', zip('bcdefg', [1, 2, 3, 3, 3, 4]))
eg.schedule_event(curtsies.events.SigIntEvent(), 5)
eg.schedule_event('h', 6)
cb = combined_events(eg, paste_threshold=3)
self.assertEqual(next(cb), 'a')
self.assertEqual(cb.send(0), None)
self.assertEqual(next(cb), 'b')
self.assertEqual(cb.send(0), None)
eg.tick()
self.assertEqual(cb.send(0), 'c')
self.assertEqual(cb.send(0), None)
eg.tick()
self.assertIsInstance(cb.send(0), curtsies.events.PasteEvent)
self.assertEqual(cb.send(0), None)
self.assertEqual(cb.send(None), 'g')
self.assertEqual(cb.send(0), None)
eg.tick(1)
self.assertIsInstance(cb.send(0), curtsies.events.SigIntEvent)
self.assertEqual(cb.send(0), None)
self.assertEqual(cb.send(None), 'h')
self.assertEqual(cb.send(None), None)
if __name__ == '__main__':
unittest.main()