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# test_precis.py
import platform
import sys
import unittest
import precis_i18n.context as pc
from precis_i18n.baseclass import FreeFormClass, IdentifierClass
from precis_i18n.bidi import bidi_rule, has_rtl
from precis_i18n.derived import derived_property
from precis_i18n.unicode import UnicodeData, _version_to_float
_PYPY = platform.python_implementation() == "PyPy"
_PY3_11 = sys.version_info[:2] >= (3, 11)
UCD = UnicodeData()
# Example characters for bidirectional properties. Used in testing Bidi Rule.
L = "A"
R = "\u05d0"
AL = "\u0621"
EN = "0"
AN = "\U00010e60"
NSM = "\u0300"
P = "*"
class TestBidiRule(unittest.TestCase):
def test_bidi_rule_ltr(self):
self.assertTrue(bidi_rule(L, UCD))
self.assertTrue(bidi_rule(L + P + L, UCD))
self.assertFalse(bidi_rule(P + L, UCD))
self.assertFalse(bidi_rule(L + P, UCD))
self.assertFalse(bidi_rule(L + R + L, UCD))
def test_bidi_rule_rtl(self):
self.assertTrue(bidi_rule(R, UCD))
self.assertTrue(bidi_rule(R + R, UCD))
self.assertTrue(bidi_rule(AL + R, UCD))
self.assertTrue(bidi_rule(AL + EN + R, UCD))
self.assertTrue(bidi_rule(AL + R + EN, UCD))
self.assertTrue(bidi_rule(R + P + R, UCD))
self.assertTrue(bidi_rule(R + P + R + NSM + NSM, UCD))
self.assertTrue(bidi_rule(R + AN + NSM + AN + R, UCD))
self.assertFalse(bidi_rule(P + R, UCD))
self.assertFalse(bidi_rule(R + P, UCD))
self.assertFalse(bidi_rule(R + L + R, UCD))
self.assertFalse(bidi_rule(EN + R, UCD))
self.assertFalse(bidi_rule(R + AN + EN, UCD))
self.assertFalse(bidi_rule(R + EN + AN + R, UCD))
def test_has_rtl(self):
self.assertFalse(has_rtl("Juliet+", UCD))
self.assertTrue(has_rtl("\u05d0+", UCD))
class TestPrecisIdentifierClass(unittest.TestCase):
def test_valid_identifier(self):
ident = IdentifierClass(UCD)
self.assertEqual(ident.name, "IdentifierClass")
self.assertEqual(ident.enforce("abc"), "abc")
self.assertEqual(ident.enforce("123"), "123")
self.assertEqual(
ident.enforce("\u0660\u0661\u0662\u0669"), "\u0660\u0661\u0662\u0669"
)
self.assertEqual(ident.enforce("\u0370\u0371"), "\u0370\u0371")
# CONTEXTJ
self.assertEqual(ident.enforce("\u094d\u200c"), "\u094d\u200c")
def test_invalid_identifier(self):
ident = IdentifierClass(UCD)
# DISALLOWED/spaces
with self.assertRaisesRegex(
UnicodeEncodeError,
r"'IdentifierClass' codec can't encode character '\\x20' in position 0: DISALLOWED/spaces",
):
ident.enforce(" ")
# DISALLOWED/precis_ignorable_properties
with self.assertRaisesRegex(
UnicodeEncodeError,
r"'IdentifierClass' codec can't encode character '\\xad' in position 0: DISALLOWED/precis_ignorable_properties",
):
ident.enforce("\xad")
# DISALLOWED/old_hangul_jamo
with self.assertRaisesRegex(
UnicodeEncodeError,
r"'IdentifierClass' codec can't encode character '\\u1100' in position 0: DISALLOWED/old_hangul_jamo",
):
ident.enforce("\u1100")
# DISALLOWED/has_compat
with self.assertRaisesRegex(
UnicodeEncodeError,
r"'IdentifierClass' codec can't encode character '\\u1fbf' in position 0: DISALLOWED/has_compat",
):
ident.enforce("\u1FBF")
class TestPrecisFreeformClass(unittest.TestCase):
def test_valid_freeform(self):
free = FreeFormClass(UCD)
self.assertEqual(free.name, "FreeFormClass")
self.assertEqual(free.enforce("abc"), "abc")
self.assertEqual(free.enforce("123"), "123")
self.assertEqual(
free.enforce("\u0660\u0661\u0662\u0669"), "\u0660\u0661\u0662\u0669"
)
self.assertEqual(free.enforce("\u0370\u0371"), "\u0370\u0371")
self.assertEqual(free.enforce(" "), " ")
self.assertEqual(free.enforce("\u1FBF"), "\u1FBF")
def test_invalid_freeform(self):
free = FreeFormClass(UCD)
# DISALLOWED/precis_ignorable_properties
with self.assertRaisesRegex(
UnicodeEncodeError,
r"'FreeFormClass' codec can't encode character '\\xad' in position 0: DISALLOWED/precis_ignorable_properties",
):
free.enforce("\xad")
# DISALLOWED/old_hangul_jamo
with self.assertRaisesRegex(
UnicodeEncodeError,
r"'FreeFormClass' codec can't encode character '\\u1100' in position 0: DISALLOWED/old_hangul_jamo",
):
free.enforce("\u1100")
# DISALLOWED/other (surrogates)
with self.assertRaisesRegex(
UnicodeEncodeError,
r"'FreeFormClass' codec can't encode character '\\ud800' in position 0: DISALLOWED/other",
):
if _PYPY:
# pypy3-v5.5.0 treats surrogate pairs in .pyc files differently. (issue #2441)
free.enforce("\ud800 \udc00")
else:
free.enforce("\ud800\udc00")
class TestDerivedProperty(unittest.TestCase):
def test_derived_property(self):
self.assertEqual(derived_property(0, UCD), ("DISALLOWED", "controls"))
self.assertEqual(
derived_property(0x10FFFF, UCD),
("DISALLOWED", "precis_ignorable_properties"),
)
self.assertEqual(derived_property(0x30, UCD), ("PVALID", "ascii7"))
self.assertEqual(derived_property(0x20, UCD), ("FREE_PVAL", "spaces"))
self.assertEqual(
derived_property(0xAD, UCD), ("DISALLOWED", "precis_ignorable_properties")
)
with self.assertRaises(ValueError):
derived_property(0x110000, UCD)
# In Unicode 9.0, U+08E2 is 'DISALLOWED'. Before Unicode 9.0, it is
# UNASSIGNED.
prop = derived_property(0x08E2, UCD)[0]
if UCD.version >= 9.0:
self.assertEqual(prop, "DISALLOWED")
else:
self.assertEqual(prop, "UNASSIGNED")
class TestPrecisContextRule(unittest.TestCase):
def test_rule_zero_width_nonjoiner(self):
# We're going to use a872 and 0622 in some tests. Make sure they aren't
# combining_virama().
self.assertFalse(UCD.combining_virama(0xA872))
self.assertFalse(UCD.combining_virama(0x0622))
# Valid: combining_virama before
self.assertTrue(pc.rule_zero_width_nonjoiner("\u094d\u200c", 1, UCD))
# Invalid: invalid join_type
self.assertFalse(pc.rule_zero_width_nonjoiner("\ua872\u200c", 1, UCD))
# Invalid: undefined before
with self.assertRaises(IndexError):
pc.rule_zero_width_nonjoiner("\u200c", 0, UCD)
# Valid: jointype(L J R)
self.assertTrue(pc.rule_zero_width_nonjoiner("\ua872\u200c\u0622", 1, UCD))
# Invalid: jointype(R J L)
self.assertFalse(pc.rule_zero_width_nonjoiner("\u0622\u200c\ua872", 1, UCD))
def test_rule_zero_width_joiner(self):
# Valid: combining_virama before
self.assertTrue(pc.rule_zero_width_joiner("\u094d\u200d", 1, UCD))
# Invalid: no combining_virama before
self.assertFalse(pc.rule_zero_width_joiner("A\u200d", 1, UCD))
# Invalid: no combining_virama before, jointype(L J R)
self.assertFalse(pc.rule_zero_width_joiner("\ua872\u200d\u0622", 1, UCD))
def test_rule_middle_dot(self):
# Valid: 6c b7 6c
self.assertTrue(pc.rule_middle_dot("\u006c\u00b7\u006c", 1, UCD))
# Invalid before: 6d b7 6c
self.assertFalse(pc.rule_middle_dot("\u006d\u00b7\u006c", 1, UCD))
# Invalid after: 6c b7 6d
self.assertFalse(pc.rule_middle_dot("\u006c\u00b7\u006d", 1, UCD))
# Invalid: undefined before
with self.assertRaises(IndexError):
pc.rule_middle_dot("\u00b7\u006c", 0, UCD)
# Invalid: undefined after
with self.assertRaises(IndexError):
pc.rule_middle_dot("\u006c\u00b7", 1, UCD)
def test_rule_greek_keraia(self):
# Valid: 0375 03ff
self.assertTrue(pc.rule_greek_keraia("\u0375\u03ff", 0, UCD))
# Invalid: 0375 1d25
self.assertFalse(pc.rule_greek_keraia("\u0375\u1d25", 0, UCD))
# Invalid: undefined after
with self.assertRaises(IndexError):
pc.rule_greek_keraia("\u0375", 0, UCD)
def test_rule_hebrew_punctuation(self):
# Valid: 0591 05f3
self.assertTrue(pc.rule_hebrew_punctuation("\u0591\u05f3", 1, UCD))
# Valid: 0591 05f4
self.assertTrue(pc.rule_hebrew_punctuation("\u0591\u05f4", 1, UCD))
# Invalid: 0031 05f3
self.assertFalse(pc.rule_hebrew_punctuation("\u0031\u05f3", 1, UCD))
# Invalid: 0031 05f4
self.assertFalse(pc.rule_hebrew_punctuation("\u0031\u05f4", 1, UCD))
# Invalid: undefined after
with self.assertRaises(IndexError):
pc.rule_hebrew_punctuation("\u05f3", 0, UCD)
def test_katatana_middle_dot(self):
# Valid: 0x30fb 0x2e99
self.assertTrue(pc.rule_katakana_middle_dot("\u30fb\u2e99", 0, UCD))
# Valid: 0x30f0 0x30fb 0x0021
self.assertTrue(pc.rule_katakana_middle_dot("\u30f0\u30fb\u0021", 1, UCD))
# Invalid: 0x30fb 0x3006
self.assertFalse(pc.rule_katakana_middle_dot("\u30fb\u3006", 0, UCD))
# Invalid: 0x30fb 0x0021
self.assertFalse(pc.rule_katakana_middle_dot("\u0021\u30fb", 1, UCD))
# Invalid: 0x30fb
self.assertFalse(pc.rule_katakana_middle_dot("\u30fb", 0, UCD))
def test_arabic_indic(self):
# Valid: 0x0660 0x0661 0x0662 0x0669
self.assertTrue(pc.rule_arabic_indic("\u0660\u0661\u0662\u0669", 0, UCD))
# Invalid: 0x660 0x0661 0x0662 0x06f0
self.assertFalse(pc.rule_arabic_indic("\u0660\u0661\u0662\u06f0", 0, UCD))
def test_extended_arabic_indic(self):
# Valid: 0x06f0 0x06f1 0x06f2 0x06f9
self.assertTrue(
pc.rule_extended_arabic_indic("\u06f0\u06f1\u06f2\u06f9", 0, UCD)
)
# Invalid: 0x6f0 0x06f1 0x06f2 0x0660
self.assertFalse(
pc.rule_extended_arabic_indic("\u06f0\u06f1\u06f2\u0660", 0, UCD)
)
def test_context_rule(self):
def _context_rule(value, offset, ucd):
return not pc.context_rule_error(value, offset, ucd)
# 1. rule_zero_width_nonjoiner
# Valid: combining_virama before
self.assertTrue(_context_rule("\u094d\u200c", 1, UCD))
# Invalid: invalid join_type
self.assertFalse(_context_rule("\ua872\u200c", 1, UCD))
# Invalid: undefined before
self.assertFalse(_context_rule("\u200c", 0, UCD))
# Valid: jointype(L J R)
self.assertTrue(_context_rule("\ua872\u200c\u0622", 1, UCD))
# Invalid: jointype(R J L)
self.assertFalse(_context_rule("\u0622\u200c\ua872", 1, UCD))
# 2. rule_zero_width_joiner
# Valid: combining_virama before
self.assertTrue(_context_rule("\u094d\u200d", 1, UCD))
# Invalid: no combining_virama before
self.assertFalse(_context_rule("A\u200d", 1, UCD))
# Invalid: no combining_virama before, jointype(L J R)
self.assertFalse(_context_rule("\ua872\u200d\u0622", 1, UCD))
# 3. rule_middle_dot
# Valid: 6c b7 6c
self.assertTrue(_context_rule("\u006c\u00b7\u006c", 1, UCD))
# Invalid before: 6d b7 6c
self.assertFalse(_context_rule("\u006d\u00b7\u006c", 1, UCD))
# Invalid after: 6c b7 6d
self.assertFalse(_context_rule("\u006c\u00b7\u006d", 1, UCD))
# Invalid: undefined before
self.assertFalse(_context_rule("\u00b7\u006c", 0, UCD))
# Invalid: undefined after
self.assertFalse(_context_rule("\u006c\u00b7", 1, UCD))
# 4. rule_greek_keraia
# Valid: 0375 03ff
self.assertTrue(_context_rule("\u0375\u03ff", 0, UCD))
# Invalid: 0375 1d25
self.assertFalse(_context_rule("\u0375\u1d25", 0, UCD))
# Invalid: undefined after
self.assertFalse(_context_rule("\u0375", 0, UCD))
# 5. rule_hebrew_punctuation
# Valid: 0591 05f3
self.assertTrue(_context_rule("\u0591\u05f3", 1, UCD))
# Valid: 0591 05f4
self.assertTrue(_context_rule("\u0591\u05f4", 1, UCD))
# Invalid: 0031 05f3
self.assertFalse(_context_rule("\u0031\u05f3", 1, UCD))
# Invalid: 0031 05f4
self.assertFalse(_context_rule("\u0031\u05f4", 1, UCD))
# Invalid: undefined after
self.assertFalse(_context_rule("\u05f3", 0, UCD))
# Valid: 05EF 05f3 (Unicode >= 11.0)
self.assertTrue(_context_rule("\u05EF\u05f3", 1, UCD))
# 6. katakana_middle_dot
# Valid: 0x30fb 0x2e99
self.assertTrue(_context_rule("\u30fb\u2e99", 0, UCD))
# Valid: 0x30f0 0x30fb 0x0021
self.assertTrue(_context_rule("\u30f0\u30fb\u0021", 1, UCD))
# Invalid: 0x30fb 0x3006
self.assertFalse(_context_rule("\u30fb\u3006", 0, UCD))
# Invalid: 0x30fb 0x0021
self.assertFalse(_context_rule("\u0021\u30fb", 1, UCD))
# Invalid: 0x30fb
self.assertFalse(_context_rule("\u30fb", 0, UCD))
# Valid: 0x30fb 0x3400 (Unicode >= X)
self.assertTrue(_context_rule("\u30fb\u3400", 0, UCD))
# 7. arabic_indic
# Valid: 0x0660 0x0661 0x0662 0x0669
self.assertTrue(_context_rule("\u0660\u0661\u0662\u0669", 0, UCD))
# Invalid: 0x660 0x0661 0x0662 0x06f0
self.assertFalse(_context_rule("\u0660\u0661\u0662\u06f0", 0, UCD))
# 8. extended_arabic_indic
# Valid: 0x06f0 0x06f1 0x06f2 0x06f9
self.assertTrue(_context_rule("\u06f0\u06f1\u06f2\u06f9", 0, UCD))
# Invalid: 0x6f0 0x06f1 0x06f2 0x0660
self.assertFalse(_context_rule("\u06f0\u06f1\u06f2\u0660", 0, UCD))
# 9. No rule matches.
with self.assertRaises(KeyError):
_context_rule("a", 0, UCD)
class TestPrecisUnicodeData(unittest.TestCase):
def test_width_map(self):
self.assertEqual(
UCD.width_map("\uff00\uff01\uff02\uffe3\uffef"), '\uff00!"\uffe3\uffef'
)
def test_replace_whitespace(self):
self.assertEqual(
UCD.map_nonascii_space_to_ascii(
" .\u00a0.\u1680 .\u2000.\u200A.\u202F.\u205F.\u3000"
),
" . . . . . . . ",
)
def test_default_ignorable_code_point(self):
self.assertTrue(UCD.default_ignorable(0x00AD))
self.assertFalse(UCD.default_ignorable(0x00AE))
def test_has_compat(self):
self.assertFalse(UCD.has_compat(0x31))
self.assertTrue(UCD.has_compat(0xFF01))
self.assertTrue(UCD.has_compat(0x212B))
def test_control(self):
self.assertFalse(UCD.control(0x20))
self.assertTrue(UCD.control(0x0A))
self.assertTrue(UCD.control(0x80))
def test_noncharacter(self):
self.assertTrue(UCD.noncharacter(0x02FFFF))
self.assertTrue(UCD.noncharacter(0xFDEF))
self.assertFalse(UCD.noncharacter(0xFDF0))
def test_old_hangul_jamo(self):
self.assertTrue(UCD.old_hangul_jamo(0xA97C))
self.assertFalse(UCD.old_hangul_jamo(0xA97D))
def test_greek_script(self):
self.assertTrue(UCD.greek_script(0x0373))
self.assertFalse(UCD.greek_script(0x0374))
def test_hebrew_script(self):
self.assertTrue(UCD.hebrew_script(0x05C7))
self.assertFalse(UCD.hebrew_script(0x05C8))
def test_hiragana_katakana_han_script(self):
self.assertTrue(UCD.hiragana_katakana_han_script(0x1F200))
self.assertFalse(UCD.hiragana_katakana_han_script(0x1F201))
self.assertTrue(UCD.hiragana_katakana_han_script(0xFF9D))
self.assertFalse(UCD.hiragana_katakana_han_script(0xFF9E))
self.assertTrue(UCD.hiragana_katakana_han_script(0x2FD5))
self.assertFalse(UCD.hiragana_katakana_han_script(0x2FD6))
self.assertFalse(UCD.hiragana_katakana_han_script(0x3006))
self.assertFalse(UCD.hiragana_katakana_han_script(0x30FB))
def test_combining_virama(self):
self.assertTrue(UCD.combining_virama(0x1714))
if _PY3_11:
self.assertTrue(UCD.combining_virama(0x1715))
else:
self.assertFalse(UCD.combining_virama(0x1715))
self.assertFalse(UCD.combining_virama(0x1716))
def test_arabic_indic(self):
self.assertTrue(UCD.arabic_indic(0x669))
self.assertFalse(UCD.arabic_indic(0x66A))
def test_extended_arabic_indic(self):
self.assertTrue(UCD.extended_arabic_indic(0x06F9))
self.assertFalse(UCD.extended_arabic_indic(0x06FA))
def test_valid_join_type(self):
# Valid: L J R
self.assertTrue(UCD.valid_jointype("\ua872\u200c\u0622", 1))
# Valid: L T J T R
self.assertTrue(UCD.valid_jointype("\ua872\u00ad\u200c\u00ad\u0622", 2))
# Valid: D J D
self.assertTrue(UCD.valid_jointype("\u0620\u200c\u0620", 1))
# Valid: D T J T D
self.assertTrue(UCD.valid_jointype("\u0626\u0300\u200c\u0301\u0628", 2))
# Invalid: R J L
self.assertFalse(UCD.valid_jointype("\u0622\u200c\ua872", 1))
# Invalid: R T J T L
self.assertFalse(UCD.valid_jointype("\u0622\u00ad\u200c\u00ad\ua872", 2))
# Invalid: J
self.assertFalse(UCD.valid_jointype("\u200c", 0))
# Invalid: T J T
self.assertFalse(UCD.valid_jointype("\u00ad\u200c\u00ad", 1))
# Invalid: U T J T U
self.assertFalse(UCD.valid_jointype("\u0031\u0300\u200c\u0301\u0032", 2))
# Valid: L J R (Unicode >= 14.0)
self.assertTrue(UCD.valid_jointype("\U00010D00\u200c\u088E", 1))
# Valid: L T J T R (Unicode >= 14.0)
self.assertTrue(UCD.valid_jointype("\U00010D00\u07fd\u200c\u07fd\u088E", 2))
# Valid: D J D (Unicode >= 14.0)
self.assertTrue(UCD.valid_jointype("\u0886\u200c\u0886", 1))
def test_version_to_float(self):
self.assertEqual(_version_to_float("8.0.0"), 8.0)
self.assertEqual(_version_to_float("6.3.1"), 6.3)
with self.assertRaises(ValueError):
_version_to_float("8.0")
if __name__ == "__main__":
unittest.main(verbosity=2)
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