def test_no_match_invalid_sequence(self):
"""Test REGEX_FILE_COUNTER no match: invalid sequence"""
test_str = "file1.txt"
matches = REGEX_FILE_COUNTER.search(test_str)
self.assertFalse(matches)
def test_no_match_invlaid_extention(self):
"""Test REGEX_FILE_COUNTER no match: invalid extention"""
test_str = "_1."
matches = REGEX_FILE_COUNTER.search(test_str)
self.assertFalse(matches)
def test_no_match_missing_sequence(self):
"""Test REGEX_FILE_COUNTER no match: missing sequence"""
test_str = "file.txt"
matches = REGEX_FILE_COUNTER.search(test_str)
self.assertFalse(matches)
def test_sequence_simple(self):
""" Test REGEX_FILE_COUNTER simplest valid sequence"""
test_str = "_1.txt"
matches = REGEX_FILE_COUNTER.search(test_str)
self.assertTrue(matches)
self.assertEqual(matches.group('i'), '1')
def test_valid_numeric_matches_four_digit(self):
""" Test REGEX_FILE_COUNTER valid numeric match 4 digits"""
test_str = "file_1024.txt"
matches = REGEX_FILE_COUNTER.search(test_str)
self.assertTrue(matches)
self.assertEqual(matches.group('i'), '1024')
def test_valid_numeric_matches_three_digit(self):
""" Test REGEX_FILE_COUNTER valid numeric match 3 digits"""
test_str = "file_256.txt"
matches = REGEX_FILE_COUNTER.search(test_str)
self.assertTrue(matches)
self.assertEqual(matches.group('i'), '256')
def test_valid_numeric_matches_single_digit(self):
""" Test REGEX_FILE_COUNTER valid numeric match 1 digit"""
test_str = "file_8.txt"
matches = REGEX_FILE_COUNTER.search(test_str)
self.assertTrue(matches)
self.assertEqual(matches.group('i'), '8')
def test_valid_numeric_matches_zero(self):
""" Test REGEX_FILE_COUNTER valid numeric match 0"""
test_str = "file_0.txt"
matches = REGEX_FILE_COUNTER.search(test_str)
self.assertTrue(matches)
self.assertEqual(matches.group('i'), '0')
