def test14string_machine_invalid_values(self):
"""Test the string_machine with some invalid values."""
def raise_error(_): # skipcq: PY-D0003
raise Exception("Invalid returned as valid.")
for c in range(0x20): # ascii control characters
state = string_machine(raise_error)
self.assertIsNone(state(c))
for c in range(0x80, 0xc0): # some characters after the ascii table
state = string_machine(raise_error)
self.assertIsNone(state(c))
def test12utf8_machine_started_from_string_machine(self):
"""Test if the utf8_machine is started from the string_machine."""
def check_value(_data): # skipcq: PY-D0003, PTC-W0049
pass
string = b"File pattern: file\x5f<file-nr>.txt"
state = string_machine(check_value)
utf8_machine_found = False
for c in string:
state = state(c)
if state.__name__ == '_utf8':
utf8_machine_found = True
self.assertIsNone(state(ord(b'"')))
self.assertFalse(utf8_machine_found)
string = b"It is 20\xc2\xb0C"
state = string_machine(check_value)
utf8_machine_found = False
for c in string:
state = state(c)
if state.__name__ == '_utf8':
utf8_machine_found = True
self.assertIsNone(state(ord(b'"')))
self.assertTrue(utf8_machine_found)
string = b"This is a foreign letter: \xe0\xa0\xab"
state = string_machine(check_value)
utf8_machine_found = False
for c in string:
state = state(c)
if state.__name__ == '_utf8':
utf8_machine_found = True
self.assertIsNone(state(ord(b'"')))
self.assertTrue(utf8_machine_found)
string = b"This is an egyptian hieroglyph: \xf0\x93\x80\x90"
state = string_machine(check_value)
utf8_machine_found = False
for c in string:
state = state(c)
if state.__name__ == '_utf8':
utf8_machine_found = True
self.assertIsNone(state(ord(b'"')))
self.assertTrue(utf8_machine_found)
def test15string_machine_escaped_strings(self):
"""Test all allowed escape strings in the string_machine."""
def check_value(data): # skipcq: PY-D0003
self.assertEqual(data, compare_strings)
escape_strings = b"bf\"\\/"
compare_strings = "\b\f\"\\/"
state = string_machine(check_value)
for c in escape_strings:
state = state(0x5c) # \
state = state(c)
state = state(0x22) # "
self.assertIsNone(state)
def test5hex_machine_started_from_string_machine(self):
"""Test if the hex_machine is started from the string_machine."""
def check_value(_data): # skipcq: PY-D0003, PTC-W0049
pass
string = b"\u02FF" # skipcq: PYL-W1402
state = string_machine(check_value)
hex_machine_found = False
for c in string:
state = state(c)
if state.__name__ == '_hex':
hex_machine_found = True
self.assertIsNone(state(ord(b'"')))
self.assertTrue(hex_machine_found)
string = b"\uff02" # skipcq: PYL-W1402
state = string_machine(check_value)
hex_machine_found = False
for c in string:
state = state(c)
if state.__name__ == '_hex':
hex_machine_found = True
self.assertIsNone(state(ord(b'"')))
self.assertTrue(hex_machine_found)
def test13string_machine_valid_values(self):
"""Test the string_machine with all valid characters."""
def check_value(data): # skipcq: PY-D0003
self.assertEqual(data, allowed_chars)
allowed_chars = "\n"
for c in range(0x20, 0x80):
if c in (0x22, 0x5c): # skip "\
continue
allowed_chars += chr(c)
state = string_machine(check_value)
for c in allowed_chars.encode():
state = state(c)
self.assertEqual(state.__name__, "_string")
state = state(ord('"'))
self.assertIsNone(state)