def test_remove(self):
"""
Removing things from the list should remove them immediately from the
cycle.
"""
ch = RoundRobinChooser()
ch.add('a')
ch.add('b')
ch.add('c')
self.assertEqual(ch.next(), 'a')
self.assertEqual(ch.next(), 'b')
ch.remove('c')
self.assertEqual(ch.next(), 'a')
ch.remove('a')
self.assertEqual(ch.next(), 'b')
self.assertEqual(ch.next(), 'b')
def test_basic(self):
"""
You can add things to the list and cycle through them.
"""
ch = RoundRobinChooser()
ch.add('a')
ch.add('b')
ch.add('c')
self.assertEqual(ch.next(), 'a')
self.assertEqual(ch.next(), 'b')
self.assertEqual(ch.next(), 'c')
self.assertEqual(ch.next(), 'a')
ch.add('d')
self.assertEqual(ch.next(), 'b')
self.assertEqual(ch.next(), 'c')
self.assertEqual(ch.next(), 'd')
