def test_last(self):
nav = Navigator([])
self.assertEqual(nav.last(), '')
pages = ['p1', 'p2', 'p3']
nav = Navigator(pages)
nav.page = ''
self.assertEqual(nav.last(), 'p3')
for p in pages:
nav.page = p
self.assertEqual(nav.last(), 'p3')
def test_next(self):
nav = Navigator([])
self.assertEqual(nav.next(), '')
pages = ['p1', 'p2', 'p3']
nav = Navigator(pages)
nav.page = ''
self.assertEqual(nav.next(), 'p1')
nav.page = 'p1'
self.assertEqual(nav.next(), 'p2')
nav.page = 'p2'
self.assertEqual(nav.next(), 'p3')
nav.page = 'p3'
self.assertEqual(nav.next(), 'p3')
nav.page = 'p1'
self.assertEqual(nav.next(count=2), 'p3')
