def test_reduce(self):
cands = Candidates(('bar', 'baz', 'foo'))
self.assert_focus(cands, 0, 'bar')
cands.reduce(r'^b')
self.assertEqual(tuple(cands), ('bar', 'baz'))
self.assert_focus(cands, 0, 'bar')
cands.next()
self.assert_focus(cands, 1, 'baz')
cands.next()
self.assert_focus(cands, 0, 'bar')
def test_next(self):
cands = Candidates(('bar', 'baz', 'foo'))
for _ in range(3):
self.assert_focus(cands, 0, 'bar')
cands.next()
self.assert_focus(cands, 1, 'baz')
cands.next()
self.assert_focus(cands, 2, 'foo')
cands.next()
self.assert_focus(cands, 0, 'bar')
