def test_off_by_one(self):
"""Test that you fetch the value you put in."""
test_list = OffByOneList(['1', '2', '3'])
for k in (1, 2, 3):
self.assertEqual(str(k), test_list[k])
self.assertEqual([str(k)], test_list[k:k + 1])
self.assertEqual(k, test_list.index(str(k)))
self.assertEqual(1, test_list.count(str(k)))
self.assertEqual(['3', '2', '1'], list(reversed(test_list)))
def test_off_by_one(self):
"""Test that you fetch the value you put in."""
test_list = OffByOneList(['1', '2', '3'])
for k in (1, 2, 3):
self.assertEqual(str(k), test_list[k])
self.assertEqual([str(k)], test_list[k:k + 1])
self.assertEqual(k, test_list.index(str(k)))
self.assertEqual(1, test_list.count(str(k)))
self.assertEqual(['3', '2', '1'], list(reversed(test_list)))
def test_index_type(self):
test_list = OffByOneList([])
# Test index type sanity.
for value in (None, 2.0, type):
with self.assertRaises(TypeError):
test_list[value]
def test_empty_slice(self):
"""Test that we get an empty list if no elements in slice."""
test_list = OffByOneList([])
for s in (slice(1, 1), slice(1, 2), slice(-2, -1)):
self.assertEqual([], test_list[s])
def test_index_error_no_data(self):
"""Test that when start or end are -1,0, or 1 we get an index error."""
for index in [-1, 0, 1, slice(-1, 0), slice(0, 1)]:
test_list = OffByOneList([])
with self.assertRaises(IndexError):
test_list[index]
def test_index_error_with_data(self):
"""Test index errors with data in list."""
test_list = OffByOneList([])
for k in (0, 4):
with self.assertRaises(IndexError):
test_list[k]