def test_one_title_lines(self): self.assertEqual(str(rst_titles_parser([ '', 'Hello world', '=========== ', 'I am happy now\n', ''])), 'Hello world')
def test_no_title_lines(self): self.assertEqual(rst_titles_parser([ '', 'Hello world', 'I am happy now\n', '']), None)
def test_empty_lines(self): self.assertEqual(rst_titles_parser([]), None)