def test_one_occurrence(self):
results = Strings.all_indices(self.haystack, "ACGT")
self.assertEqual(results, [0])
def test_two_occurrences(self):
results = Strings.all_indices(self.haystack, "ACG")
self.assertEqual(results, [0, 7])
def test_no_occurrences(self):
results = Strings.all_indices(self.haystack, "AAA")
self.assertEqual(results, list())
