cpython/Lib/test/test_ucn.py
Greg Price 1ad0c776cb bpo-38043: Move unicodedata.normalize tests into test_unicodedata. (GH-15712)
Having these in a separate file from the one that's named after the
module in the usual way makes it very easy to miss them when looking
for tests for these two functions.

(In fact when working recently on is_normalized, I'd been surprised to
see no tests for it here and concluded the function had evaded being
tested at all.  I'd gone as far as to write up some tests myself
before I spotted this other file.)

Mostly this just means moving all the one file's code into the other,
and moving code from the module toplevel to inside the test class to
keep it tidily separate from the rest of the file's code.

There's one substantive change, which reduces by a bit the amount of
code to be moved: we drop the `x > sys.maxunicode` conditional and all
the `RangeError` logic behind it.  Now if that condition ever occurs
it will cause an error at `chr(x)`, and a test failure.  That's the
right result because, since PEP 393 in Python 3.3, there is no longer
such a thing as an "unsupported character".
2019-09-10 10:29:26 +01:00

239 lines
9.4 KiB
Python

""" Test script for the Unicode implementation.
Written by Bill Tutt.
Modified for Python 2.0 by Fredrik Lundh (fredrik@pythonware.com)
(c) Copyright CNRI, All Rights Reserved. NO WARRANTY.
"""#"
import unittest
import unicodedata
from test import support
from http.client import HTTPException
try:
from _testcapi import INT_MAX, PY_SSIZE_T_MAX, UINT_MAX
except ImportError:
INT_MAX = PY_SSIZE_T_MAX = UINT_MAX = 2**64 - 1
class UnicodeNamesTest(unittest.TestCase):
def checkletter(self, name, code):
# Helper that put all \N escapes inside eval'd raw strings,
# to make sure this script runs even if the compiler
# chokes on \N escapes
res = eval(r'"\N{%s}"' % name)
self.assertEqual(res, code)
return res
def test_general(self):
# General and case insensitivity test:
chars = [
"LATIN CAPITAL LETTER T",
"LATIN SMALL LETTER H",
"LATIN SMALL LETTER E",
"SPACE",
"LATIN SMALL LETTER R",
"LATIN CAPITAL LETTER E",
"LATIN SMALL LETTER D",
"SPACE",
"LATIN SMALL LETTER f",
"LATIN CAPITAL LeTtEr o",
"LATIN SMaLl LETTER x",
"SPACE",
"LATIN SMALL LETTER A",
"LATIN SMALL LETTER T",
"LATIN SMALL LETTER E",
"SPACE",
"LATIN SMALL LETTER T",
"LATIN SMALL LETTER H",
"LATIN SMALL LETTER E",
"SpAcE",
"LATIN SMALL LETTER S",
"LATIN SMALL LETTER H",
"LATIN small LETTER e",
"LATIN small LETTER e",
"LATIN SMALL LETTER P",
"FULL STOP"
]
string = "The rEd fOx ate the sheep."
self.assertEqual(
"".join([self.checkletter(*args) for args in zip(chars, string)]),
string
)
def test_ascii_letters(self):
for char in "".join(map(chr, range(ord("a"), ord("z")))):
name = "LATIN SMALL LETTER %s" % char.upper()
code = unicodedata.lookup(name)
self.assertEqual(unicodedata.name(code), name)
def test_hangul_syllables(self):
self.checkletter("HANGUL SYLLABLE GA", "\uac00")
self.checkletter("HANGUL SYLLABLE GGWEOSS", "\uafe8")
self.checkletter("HANGUL SYLLABLE DOLS", "\ub3d0")
self.checkletter("HANGUL SYLLABLE RYAN", "\ub7b8")
self.checkletter("HANGUL SYLLABLE MWIK", "\ubba0")
self.checkletter("HANGUL SYLLABLE BBWAEM", "\ubf88")
self.checkletter("HANGUL SYLLABLE SSEOL", "\uc370")
self.checkletter("HANGUL SYLLABLE YI", "\uc758")
self.checkletter("HANGUL SYLLABLE JJYOSS", "\ucb40")
self.checkletter("HANGUL SYLLABLE KYEOLS", "\ucf28")
self.checkletter("HANGUL SYLLABLE PAN", "\ud310")
self.checkletter("HANGUL SYLLABLE HWEOK", "\ud6f8")
self.checkletter("HANGUL SYLLABLE HIH", "\ud7a3")
self.assertRaises(ValueError, unicodedata.name, "\ud7a4")
def test_cjk_unified_ideographs(self):
self.checkletter("CJK UNIFIED IDEOGRAPH-3400", "\u3400")
self.checkletter("CJK UNIFIED IDEOGRAPH-4DB5", "\u4db5")
self.checkletter("CJK UNIFIED IDEOGRAPH-4E00", "\u4e00")
self.checkletter("CJK UNIFIED IDEOGRAPH-9FCB", "\u9fCB")
self.checkletter("CJK UNIFIED IDEOGRAPH-20000", "\U00020000")
self.checkletter("CJK UNIFIED IDEOGRAPH-2A6D6", "\U0002a6d6")
self.checkletter("CJK UNIFIED IDEOGRAPH-2A700", "\U0002A700")
self.checkletter("CJK UNIFIED IDEOGRAPH-2B734", "\U0002B734")
self.checkletter("CJK UNIFIED IDEOGRAPH-2B740", "\U0002B740")
self.checkletter("CJK UNIFIED IDEOGRAPH-2B81D", "\U0002B81D")
def test_bmp_characters(self):
for code in range(0x10000):
char = chr(code)
name = unicodedata.name(char, None)
if name is not None:
self.assertEqual(unicodedata.lookup(name), char)
def test_misc_symbols(self):
self.checkletter("PILCROW SIGN", "\u00b6")
self.checkletter("REPLACEMENT CHARACTER", "\uFFFD")
self.checkletter("HALFWIDTH KATAKANA SEMI-VOICED SOUND MARK", "\uFF9F")
self.checkletter("FULLWIDTH LATIN SMALL LETTER A", "\uFF41")
def test_aliases(self):
# Check that the aliases defined in the NameAliases.txt file work.
# This should be updated when new aliases are added or the file
# should be downloaded and parsed instead. See #12753.
aliases = [
('LATIN CAPITAL LETTER GHA', 0x01A2),
('LATIN SMALL LETTER GHA', 0x01A3),
('KANNADA LETTER LLLA', 0x0CDE),
('LAO LETTER FO FON', 0x0E9D),
('LAO LETTER FO FAY', 0x0E9F),
('LAO LETTER RO', 0x0EA3),
('LAO LETTER LO', 0x0EA5),
('TIBETAN MARK BKA- SHOG GI MGO RGYAN', 0x0FD0),
('YI SYLLABLE ITERATION MARK', 0xA015),
('PRESENTATION FORM FOR VERTICAL RIGHT WHITE LENTICULAR BRACKET', 0xFE18),
('BYZANTINE MUSICAL SYMBOL FTHORA SKLIRON CHROMA VASIS', 0x1D0C5)
]
for alias, codepoint in aliases:
self.checkletter(alias, chr(codepoint))
name = unicodedata.name(chr(codepoint))
self.assertNotEqual(name, alias)
self.assertEqual(unicodedata.lookup(alias),
unicodedata.lookup(name))
with self.assertRaises(KeyError):
unicodedata.ucd_3_2_0.lookup(alias)
def test_aliases_names_in_pua_range(self):
# We are storing aliases in the PUA 15, but their names shouldn't leak
for cp in range(0xf0000, 0xf0100):
with self.assertRaises(ValueError) as cm:
unicodedata.name(chr(cp))
self.assertEqual(str(cm.exception), 'no such name')
def test_named_sequences_names_in_pua_range(self):
# We are storing named seq in the PUA 15, but their names shouldn't leak
for cp in range(0xf0100, 0xf0fff):
with self.assertRaises(ValueError) as cm:
unicodedata.name(chr(cp))
self.assertEqual(str(cm.exception), 'no such name')
def test_named_sequences_sample(self):
# Check a few named sequences. See #12753.
sequences = [
('LATIN SMALL LETTER R WITH TILDE', '\u0072\u0303'),
('TAMIL SYLLABLE SAI', '\u0BB8\u0BC8'),
('TAMIL SYLLABLE MOO', '\u0BAE\u0BCB'),
('TAMIL SYLLABLE NNOO', '\u0BA3\u0BCB'),
('TAMIL CONSONANT KSS', '\u0B95\u0BCD\u0BB7\u0BCD'),
]
for seqname, codepoints in sequences:
self.assertEqual(unicodedata.lookup(seqname), codepoints)
with self.assertRaises(SyntaxError):
self.checkletter(seqname, None)
with self.assertRaises(KeyError):
unicodedata.ucd_3_2_0.lookup(seqname)
def test_named_sequences_full(self):
# Check all the named sequences
def check_version(testfile):
hdr = testfile.readline()
return unicodedata.unidata_version in hdr
url = ("http://www.pythontest.net/unicode/%s/NamedSequences.txt" %
unicodedata.unidata_version)
try:
testdata = support.open_urlresource(url, encoding="utf-8",
check=check_version)
except (OSError, HTTPException):
self.skipTest("Could not retrieve " + url)
self.addCleanup(testdata.close)
for line in testdata:
line = line.strip()
if not line or line.startswith('#'):
continue
seqname, codepoints = line.split(';')
codepoints = ''.join(chr(int(cp, 16)) for cp in codepoints.split())
self.assertEqual(unicodedata.lookup(seqname), codepoints)
with self.assertRaises(SyntaxError):
self.checkletter(seqname, None)
with self.assertRaises(KeyError):
unicodedata.ucd_3_2_0.lookup(seqname)
def test_errors(self):
self.assertRaises(TypeError, unicodedata.name)
self.assertRaises(TypeError, unicodedata.name, 'xx')
self.assertRaises(TypeError, unicodedata.lookup)
self.assertRaises(KeyError, unicodedata.lookup, 'unknown')
def test_strict_error_handling(self):
# bogus character name
self.assertRaises(
UnicodeError,
str, b"\\N{blah}", 'unicode-escape', 'strict'
)
# long bogus character name
self.assertRaises(
UnicodeError,
str, bytes("\\N{%s}" % ("x" * 100000), "ascii"), 'unicode-escape', 'strict'
)
# missing closing brace
self.assertRaises(
UnicodeError,
str, b"\\N{SPACE", 'unicode-escape', 'strict'
)
# missing opening brace
self.assertRaises(
UnicodeError,
str, b"\\NSPACE", 'unicode-escape', 'strict'
)
@support.cpython_only
@unittest.skipUnless(INT_MAX < PY_SSIZE_T_MAX, "needs UINT_MAX < SIZE_MAX")
@support.bigmemtest(size=UINT_MAX + 1, memuse=2 + 1, dry_run=False)
def test_issue16335(self, size):
# very very long bogus character name
x = b'\\N{SPACE' + b'x' * (UINT_MAX + 1) + b'}'
self.assertEqual(len(x), len(b'\\N{SPACE}') + (UINT_MAX + 1))
self.assertRaisesRegex(UnicodeError,
'unknown Unicode character name',
x.decode, 'unicode-escape'
)
if __name__ == "__main__":
unittest.main()