def test_sort_by(self):
self.assertEqual(["a", "ab", "abc"], sort_by(lambda x, y: len(x) - len(y), ["abc", "a", "ab"]))
def test_sort_by_one_element(self):
self.assertEqual([1], solution.sort_by(lambda x, y: x - y, [1]))
def test_sort_by(self):
self.assertEqual(['a', 'ab', 'abc'],
sort_by(lambda x, y: len(x) - len(y),
['abc', 'a', 'ab']))
def test_sort_by_simple_test(self):
self.assertEqual(['a', 'ab', 'abc'],
solution.sort_by(lambda x, y: len(x) - len(y),
['abc', 'a', 'ab']))
def test_sort_by_simple_test(self):
self.assertEqual([0, 2, 4, 1, 3, 5],
solution.sort_by(lambda x, y: x % 2 - y % 2,
[0, 1, 2, 3, 4, 5]))
def test_sort_by_empty(self):
self.assertEqual([], solution.sort_by(lambda x, y: x - y, []))
def test_sort_by_one_element(self):
self.assertEqual([1], solution.sort_by(lambda x, y: x - y, [1]))
def test_sort_by_simple_test(self):
self.assertEqual(
[0, 2, 4, 1, 3, 5],
solution.sort_by(lambda x, y: x % 2 - y % 2, [0, 1, 2, 3, 4, 5]))
def test_sort_by_simple_test(self):
self.assertEqual(
['a', 'ab', 'abc'],
solution.sort_by(lambda x, y: len(x) - len(y), ['abc', 'a', 'ab']))
def test_sort_by_empty(self):
self.assertEqual([], solution.sort_by(lambda x, y: x - y, []))