def test_value_error_end_of_string(unquoted):
"""
Test that we get errors for invalid hex escapes at the end of the string.
"""
s = quote(unquoted)
bad_string = s + "%"
with pytest.raises(ValueError) as exc_info:
decode(bad_string)
# Expect a message with the index of the error in it.
expected = "invalid percent-encoded triplet at index {:d}".format(len(s))
assert expected == str(exc_info.value)
def test_overlong_forms():
"""
Test UTF-8 overlong forms. An easy way to sneak in ␀ when you're not
expecting it, so we should throw a decoding error.
"""
with pytest.raises(UnicodeDecodeError):
decode("%C0%80")
with pytest.raises(UnicodeDecodeError):
decode("%E0%80%80")
with pytest.raises(UnicodeDecodeError):
decode("%F0%80%80%80")
def test_full_unicode_range(s):
"Some printable ASCII characters should be quoted."
assert s == decode(quote(s))
def test_decode_nul():
"Test decoding the ␀ character."
assert "\x00" == decode("%00")
def test_bad_pct_escape():
"Tests an invalid percent escape."
s = "hello%2gworld"
with pytest.raises(ValueError):
decode(s)
def test_ascii_printable(s):
"Some printable ASCII characters should be quoted."
assert s == decode(quote(s))
def test_identity_for_alphanumerics(s):
"Alphanumerics should be returned verbatim."
assert s == decode(s)