def test__len__(self):
from kanayure.util import KeyIndex
index = KeyIndex()
self.assertEqual(len(index), 0)
for number, key in enumerate(['a', 'b', 'c', 'd', 'e']):
self.assertEqual(len(index), number)
index.add(key)
self.assertEqual(len(index), number + 1)
def test_index(self):
from kanayure.util import KeyIndex
key_list = ['a', 'b', 'c', 'd', 'e']
reverse_enumerate = lambda a_list: zip(reversed(range(len(a_list))),
reversed(a_list))
index = KeyIndex()
self.assertIsInstance(index, KeyIndex)
for number, key in chain(enumerate(key_list),
reverse_enumerate(key_list)):
index_number = index.add(key)
self.assertEqual(index_number, number)
self.assertEqual(index_number, index.get_number(key))
self.assertEqual(index.get_key(index_number), key)
def test_get_key(self):
from kanayure.util import KeyIndex
# create empty index
index = KeyIndex()
# tests for empty index
test_suite = ((IndexError, 0),
(IndexError, False),
(TypeError, None),
(TypeError, []))
for exception, number in test_suite:
with self.assertRaises(exception):
index.get_key(number)
# add keys to index
for key in ['a', 'b', 'c', 'd', 'e']:
index.add(key)
# tests for index
test_suite = ((TypeError, None),
(TypeError, []),
(IndexError, -1),
(IndexError, 5))
for exception, number in test_suite:
with self.assertRaises(exception):
index.get_key(number)
self.assertEqual(index.get_key(False), 'a')
def test_sort(self):
from kanayure.util import KeyIndex
# create empty old2new_index
index = KeyIndex()
old2new_index = index.sort()
# tests for sorted index
self.assertIsInstance(index, KeyIndex)
self.assertEqual(len(index), 0)
with self.assertRaises(IndexError):
index.get_key(0)
# tests for empty old2new_index
self.assertIsInstance(old2new_index, KeyIndex)
self.assertEqual(len(old2new_index), 0)
with self.assertRaises(IndexError):
old2new_index.get_key(0)
# create sorted index and old2new_index
key_list = ['a', 'b', 'c', 'd', 'e']
for key in reversed(key_list):
index.add(key)
old2new_index = index.sort()
# tests for sorted index
for number, key in enumerate(key_list):
self.assertEqual(index.get_number(key), number)
self.assertEqual(index.get_key(number), key)
# tests for old2new_index
self.assertIsInstance(old2new_index, KeyIndex)
self.assertEqual(len(old2new_index), len(key_list))
for number, key in enumerate(reversed(range(5))):
self.assertEqual(old2new_index.get_key(number), key)
self.assertEqual(old2new_index.get_number(key), number)
def test_add(self):
from kanayure.util import KeyIndex
# create empty index
index = KeyIndex()
# tests for empty index
test_suite = ((KeyError, None),
(TypeError, []))
for exception, key in test_suite:
with self.assertRaises(exception):
index.add(key)
# add keys to index
for key in ['a', 'b', 'c', 'd', False]:
index.add(key)
# tests for index
for exception, key in test_suite:
with self.assertRaises(exception):
index.add(key)