def test_should_support_indexing(self):
self.assertEqual(0, Selector(self.iterable)[0])
self.assertEqual(1, Selector(self.iterable)[1])
self.assertEqual(2, Selector(self.iterable)[2])
self.assertEqual(2, Selector(self.iterable)[-1])
def test_should_support_iteration(self):
self.assertSequenceEqual(self.iterable, list(Selector(self.iterable)))
self.assertSequenceEqual(self.iterable, Selector(self.iterable).all())
def test_should_return_default_when_index_lower(self):
self.assertEqual(Default(5), Selector(self.iterable, 5).item(-5))
def test_should_support_index_below_zero(self):
self.assertEqual(0, Selector(self.iterable).item(-3))
def test_should_return_by_index(self):
self.assertEqual(1, Selector(self.iterable).item(1))
def test_should_return_last_element(self):
self.assertEqual(2, Selector(self.iterable).last())
def test_should_return_first_element(self):
self.assertEqual(0, Selector(self.iterable).first())