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# Test a UTF-8 encoded literal
s = "asdf©qwer"
for i in range(len(s)):
print("s[%d]: %s %X" % (i, s[i], ord(s[i])))
# Test all three forms of Unicode escape, and
# all blocks of UTF-8 byte patterns
s = "a\xa9\xff\u0123\u0800\uffee\U0001f44c"
for i in range(-len(s), len(s)):
print("s[%d]: %s %X" % (i, s[i], ord(s[i])))
print("s[:%d]: %d chars, '%s'" % (i, len(s[:i]), s[:i]))
for j in range(i, len(s)):
print("s[%d:%d]: %d chars, '%s'" % (i, j, len(s[i:j]), s[i:j]))
print("s[%d:]: %d chars, '%s'" % (i, len(s[i:]), s[i:]))
# Test UTF-8 encode and decode
enc = s.encode()
print(enc, enc.decode() == s)
# printing of unicode chars using repr
# NOTE: for some characters (eg \u10ff) we differ to CPython
print(repr("a\uffff"))
print(repr("a\U0001ffff"))
# test invalid escape code
try:
eval('"\\U00110000"')
except SyntaxError:
print("SyntaxError")
# test unicode string given to int
try:
int("\u0200")
except ValueError:
print("ValueError")
# test invalid UTF-8 string
try:
str(b"ab\xa1", "utf8")
except UnicodeError:
print("UnicodeError")
try:
str(b"ab\xf8", "utf8")
except UnicodeError:
print("UnicodeError")
try:
str(bytearray(b"ab\xc0a"), "utf8")
except UnicodeError:
print("UnicodeError")
try:
str(b"\xf0\xe0\xed\xe8", "utf8")
except UnicodeError:
print("UnicodeError")
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