def do_test(self):
tmp_dir = tempfile.mkdtemp()
os.chdir(tmp_dir)
self.create_random_file("test.txt", 5000, 30)
sorter = Sorter(input_file_name="test.txt", separators=" ", is_bar_need=False)
sorter.strings_in_tmp_file = 50
sorter.sort()
result_file = open("test.txt", 'r')
previous_string = result_file.readline().replace("\n", "")
current_string = result_file.readline().replace("\n", "")
while current_string != "":
self.assertEqual(0, sorter.compare_strings(
[previous_string, current_string]))
previous_string = current_string
current_string = result_file.readline().replace("\n", "")
result_file.close()
