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Use more appropriate asserts in re tests.

This commit is contained in:
Serhiy Storchaka 2014-09-14 16:19:37 +03:00
parent 05137ed14f
commit ed5ea15bda
1 changed files with 59 additions and 59 deletions
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118
Lib/test/test_re.py
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@ -31,12 +31,12 @@ class ReTests(unittest.TestCase):
self.assertEqual(re.search('x*', 'axx').span(), (0, 0))
self.assertEqual(re.search('x+', 'axx').span(0), (1, 3))
self.assertEqual(re.search('x+', 'axx').span(), (1, 3))
self.assertEqual(re.search('x', 'aaa'), None)
self.assertIsNone(re.search('x', 'aaa'))
self.assertEqual(re.match('a*', 'xxx').span(0), (0, 0))
self.assertEqual(re.match('a*', 'xxx').span(), (0, 0))
self.assertEqual(re.match('x*', 'xxxa').span(0), (0, 3))
self.assertEqual(re.match('x*', 'xxxa').span(), (0, 3))
self.assertEqual(re.match('a+', 'xxx'), None)
self.assertIsNone(re.match('a+', 'xxx'))
def bump_num(self, matchobj):
int_value = int(matchobj.group(0))
@ -284,8 +284,8 @@ class ReTests(unittest.TestCase):
('(', 'a'))
self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', 'a').groups(),
(None, 'a'))
self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', 'a)'), None)
self.assertEqual(re.match('^(\()?([^()]+)(?(1)\))$', '(a'), None)
self.assertIsNone(re.match('^(\()?([^()]+)(?(1)\))$', 'a)'))
self.assertIsNone(re.match('^(\()?([^()]+)(?(1)\))$', '(a'))
self.assertEqual(re.match('^(?:(a)|c)((?(1)b|d))$', 'ab').groups(),
('a', 'b'))
self.assertEqual(re.match('^(?:(a)|c)((?(1)b|d))$', 'cd').groups(),
@ -301,8 +301,8 @@ class ReTests(unittest.TestCase):
('a', 'b', 'c'))
self.assertEqual(p.match('ad').groups(),
('a', None, 'd'))
self.assertEqual(p.match('abd'), None)
self.assertEqual(p.match('ac'), None)
self.assertIsNone(p.match('abd'))
self.assertIsNone(p.match('ac'))
def test_re_groupref(self):
@ -310,8 +310,8 @@ class ReTests(unittest.TestCase):
('|', 'a'))
self.assertEqual(re.match(r'^(\|)?([^()]+)\1?$', 'a').groups(),
(None, 'a'))
self.assertEqual(re.match(r'^(\|)?([^()]+)\1$', 'a|'), None)
self.assertEqual(re.match(r'^(\|)?([^()]+)\1$', '|a'), None)
self.assertIsNone(re.match(r'^(\|)?([^()]+)\1$', 'a|'))
self.assertIsNone(re.match(r'^(\|)?([^()]+)\1$', '|a'))
self.assertEqual(re.match(r'^(?:(a)|c)(\1)$', 'aa').groups(),
('a', 'a'))
self.assertEqual(re.match(r'^(?:(a)|c)(\1)?$', 'c').groups(),
@ -329,10 +329,10 @@ class ReTests(unittest.TestCase):
"second first second first")
def test_repeat_minmax(self):
self.assertEqual(re.match("^(\w){1}$", "abc"), None)
self.assertEqual(re.match("^(\w){1}?$", "abc"), None)
self.assertEqual(re.match("^(\w){1,2}$", "abc"), None)
self.assertEqual(re.match("^(\w){1,2}?$", "abc"), None)
self.assertIsNone(re.match("^(\w){1}$", "abc"))
self.assertIsNone(re.match("^(\w){1}?$", "abc"))
self.assertIsNone(re.match("^(\w){1,2}$", "abc"))
self.assertIsNone(re.match("^(\w){1,2}?$", "abc"))
self.assertEqual(re.match("^(\w){3}$", "abc").group(1), "c")
self.assertEqual(re.match("^(\w){1,3}$", "abc").group(1), "c")
@ -343,29 +343,29 @@ class ReTests(unittest.TestCase):
self.assertEqual(re.match("^(\w){1,4}?$", "abc").group(1), "c")
self.assertEqual(re.match("^(\w){3,4}?$", "abc").group(1), "c")
self.assertEqual(re.match("^x{1}$", "xxx"), None)
self.assertEqual(re.match("^x{1}?$", "xxx"), None)
self.assertEqual(re.match("^x{1,2}$", "xxx"), None)
self.assertEqual(re.match("^x{1,2}?$", "xxx"), None)
self.assertIsNone(re.match("^x{1}$", "xxx"))
self.assertIsNone(re.match("^x{1}?$", "xxx"))
self.assertIsNone(re.match("^x{1,2}$", "xxx"))
self.assertIsNone(re.match("^x{1,2}?$", "xxx"))
self.assertNotEqual(re.match("^x{3}$", "xxx"), None)
self.assertNotEqual(re.match("^x{1,3}$", "xxx"), None)
self.assertNotEqual(re.match("^x{1,4}$", "xxx"), None)
self.assertNotEqual(re.match("^x{3,4}?$", "xxx"), None)
self.assertNotEqual(re.match("^x{3}?$", "xxx"), None)
self.assertNotEqual(re.match("^x{1,3}?$", "xxx"), None)
self.assertNotEqual(re.match("^x{1,4}?$", "xxx"), None)
self.assertNotEqual(re.match("^x{3,4}?$", "xxx"), None)
self.assertTrue(re.match("^x{3}$", "xxx"))
self.assertTrue(re.match("^x{1,3}$", "xxx"))
self.assertTrue(re.match("^x{1,4}$", "xxx"))
self.assertTrue(re.match("^x{3,4}?$", "xxx"))
self.assertTrue(re.match("^x{3}?$", "xxx"))
self.assertTrue(re.match("^x{1,3}?$", "xxx"))
self.assertTrue(re.match("^x{1,4}?$", "xxx"))
self.assertTrue(re.match("^x{3,4}?$", "xxx"))
self.assertEqual(re.match("^x{}$", "xxx"), None)
self.assertNotEqual(re.match("^x{}$", "x{}"), None)
self.assertIsNone(re.match("^x{}$", "xxx"))
self.assertTrue(re.match("^x{}$", "x{}"))
def test_getattr(self):
self.assertEqual(re.match("(a)", "a").pos, 0)
self.assertEqual(re.match("(a)", "a").endpos, 1)
self.assertEqual(re.match("(a)", "a").string, "a")
self.assertEqual(re.match("(a)", "a").regs, ((0, 1), (0, 1)))
self.assertNotEqual(re.match("(a)", "a").re, None)
self.assertTrue(re.match("(a)", "a").re)
def test_special_escapes(self):
self.assertEqual(re.search(r"\b(b.)\b",
@ -382,14 +382,14 @@ class ReTests(unittest.TestCase):
"abc bcd bc abxd", re.UNICODE).group(1), "bx")
self.assertEqual(re.search(r"^abc$", "\nabc\n", re.M).group(0), "abc")
self.assertEqual(re.search(r"^\Aabc\Z$", "abc", re.M).group(0), "abc")
self.assertEqual(re.search(r"^\Aabc\Z$", "\nabc\n", re.M), None)
self.assertIsNone(re.search(r"^\Aabc\Z$", "\nabc\n", re.M))
self.assertEqual(re.search(r"\b(b.)\b",
u"abcd abc bcd bx").group(1), "bx")
self.assertEqual(re.search(r"\B(b.)\B",
u"abc bcd bc abxd").group(1), "bx")
self.assertEqual(re.search(r"^abc$", u"\nabc\n", re.M).group(0), "abc")
self.assertEqual(re.search(r"^\Aabc\Z$", u"abc", re.M).group(0), "abc")
self.assertEqual(re.search(r"^\Aabc\Z$", u"\nabc\n", re.M), None)
self.assertIsNone(re.search(r"^\Aabc\Z$", u"\nabc\n", re.M))
self.assertEqual(re.search(r"\d\D\w\W\s\S",
"1aa! a").group(0), "1aa! a")
self.assertEqual(re.search(r"\d\D\w\W\s\S",
@ -409,10 +409,10 @@ class ReTests(unittest.TestCase):
self.assertFalse(re.match(r"\B", "abc"))
# However, an empty string contains no word boundaries, and also no
# non-boundaries.
self.assertEqual(re.search(r"\B", ""), None)
self.assertIsNone(re.search(r"\B", ""))
# This one is questionable and different from the perlre behaviour,
# but describes current behavior.
self.assertEqual(re.search(r"\b", ""), None)
self.assertIsNone(re.search(r"\b", ""))
# A single word-character string has two boundaries, but no
# non-boundary gaps.
self.assertEqual(len(re.findall(r"\b", "a")), 2)
@ -434,8 +434,8 @@ class ReTests(unittest.TestCase):
def test_big_codesize(self):
# Issue #1160
r = re.compile('|'.join(('%d'%x for x in range(10000))))
self.assertIsNotNone(r.match('1000'))
self.assertIsNotNone(r.match('9999'))
self.assertTrue(r.match('1000'))
self.assertTrue(r.match('9999'))
def test_anyall(self):
self.assertEqual(re.match("a.b", "a\nb", re.DOTALL).group(0),
@ -569,26 +569,26 @@ class ReTests(unittest.TestCase):
def test_flags(self):
for flag in [re.I, re.M, re.X, re.S, re.L]:
self.assertNotEqual(re.compile('^pattern$', flag), None)
self.assertTrue(re.compile('^pattern$', flag))
def test_sre_character_literals(self):
for i in [0, 8, 16, 32, 64, 127, 128, 255]:
self.assertNotEqual(re.match(r"\%03o" % i, chr(i)), None)
self.assertNotEqual(re.match(r"\%03o0" % i, chr(i)+"0"), None)
self.assertNotEqual(re.match(r"\%03o8" % i, chr(i)+"8"), None)
self.assertNotEqual(re.match(r"\x%02x" % i, chr(i)), None)
self.assertNotEqual(re.match(r"\x%02x0" % i, chr(i)+"0"), None)
self.assertNotEqual(re.match(r"\x%02xz" % i, chr(i)+"z"), None)
self.assertTrue(re.match(r"\%03o" % i, chr(i)))
self.assertTrue(re.match(r"\%03o0" % i, chr(i)+"0"))
self.assertTrue(re.match(r"\%03o8" % i, chr(i)+"8"))
self.assertTrue(re.match(r"\x%02x" % i, chr(i)))
self.assertTrue(re.match(r"\x%02x0" % i, chr(i)+"0"))
self.assertTrue(re.match(r"\x%02xz" % i, chr(i)+"z"))
self.assertRaises(re.error, re.match, "\911", "")
def test_sre_character_class_literals(self):
for i in [0, 8, 16, 32, 64, 127, 128, 255]:
self.assertNotEqual(re.match(r"[\%03o]" % i, chr(i)), None)
self.assertNotEqual(re.match(r"[\%03o0]" % i, chr(i)), None)
self.assertNotEqual(re.match(r"[\%03o8]" % i, chr(i)), None)
self.assertNotEqual(re.match(r"[\x%02x]" % i, chr(i)), None)
self.assertNotEqual(re.match(r"[\x%02x0]" % i, chr(i)), None)
self.assertNotEqual(re.match(r"[\x%02xz]" % i, chr(i)), None)
self.assertTrue(re.match(r"[\%03o]" % i, chr(i)))
self.assertTrue(re.match(r"[\%03o0]" % i, chr(i)))
self.assertTrue(re.match(r"[\%03o8]" % i, chr(i)))
self.assertTrue(re.match(r"[\x%02x]" % i, chr(i)))
self.assertTrue(re.match(r"[\x%02x0]" % i, chr(i)))
self.assertTrue(re.match(r"[\x%02xz]" % i, chr(i)))
self.assertRaises(re.error, re.match, "[\911]", "")
def test_bug_113254(self):
@ -598,7 +598,7 @@ class ReTests(unittest.TestCase):
def test_bug_527371(self):
# bug described in patches 527371/672491
self.assertEqual(re.match(r'(a)?a','a').lastindex, None)
self.assertIsNone(re.match(r'(a)?a','a').lastindex)
self.assertEqual(re.match(r'(a)(b)?b','ab').lastindex, 1)
self.assertEqual(re.match(r'(?P<a>a)(?P<b>b)?b','ab').lastgroup, 'a')
self.assertEqual(re.match("(?P<a>a(b))", "ab").lastgroup, 'a')
@ -655,7 +655,7 @@ class ReTests(unittest.TestCase):
(r"\s+", None),
])
self.assertNotEqual(scanner.scanner.scanner("").pattern, None)
self.assertTrue(scanner.scanner.scanner("").pattern)
self.assertEqual(scanner.scan("sum = 3*foo + 312.50 + bar"),
(['sum', 'op=', 3, 'op*', 'foo', 'op+', 312.5,
@ -704,7 +704,7 @@ class ReTests(unittest.TestCase):
self.skipTest('no problem if we have no unicode')
class my_unicode(unicode): pass
pat = re.compile(my_unicode("abc"))
self.assertEqual(pat.match("xyz"), None)
self.assertIsNone(pat.match("xyz"))
def test_finditer(self):
iter = re.finditer(r":+", "a:b::c:::d")
@ -716,8 +716,8 @@ class ReTests(unittest.TestCase):
unicode
except NameError:
self.skipTest('no problem if we have no unicode')
self.assertTrue(re.compile('bug_926075') is not
re.compile(eval("u'bug_926075'")))
self.assertIsNot(re.compile('bug_926075'),
re.compile(eval("u'bug_926075'")))
def test_bug_931848(self):
try:
@ -735,7 +735,7 @@ class ReTests(unittest.TestCase):
scanner = re.compile(r"\s").scanner("a b")
self.assertEqual(scanner.search().span(), (1, 2))
self.assertEqual(scanner.search(), None)
self.assertIsNone(scanner.search())
def test_bug_817234(self):
iter = re.finditer(r".*", "asdf")
@ -769,7 +769,7 @@ class ReTests(unittest.TestCase):
import array
for typecode in 'cbBuhHiIlLfd':
a = array.array(typecode)
self.assertEqual(re.compile("bla").match(a), None)
self.assertIsNone(re.compile("bla").match(a))
self.assertEqual(re.compile("").match(a).groups(), ())
def test_inline_flags(self):
@ -779,27 +779,27 @@ class ReTests(unittest.TestCase):
p = re.compile(upper_char, re.I | re.U)
q = p.match(lower_char)
self.assertNotEqual(q, None)
self.assertTrue(q)
p = re.compile(lower_char, re.I | re.U)
q = p.match(upper_char)
self.assertNotEqual(q, None)
self.assertTrue(q)
p = re.compile('(?i)' + upper_char, re.U)
q = p.match(lower_char)
self.assertNotEqual(q, None)
self.assertTrue(q)
p = re.compile('(?i)' + lower_char, re.U)
q = p.match(upper_char)
self.assertNotEqual(q, None)
self.assertTrue(q)
p = re.compile('(?iu)' + upper_char)
q = p.match(lower_char)
self.assertNotEqual(q, None)
self.assertTrue(q)
p = re.compile('(?iu)' + lower_char)
q = p.match(upper_char)
self.assertNotEqual(q, None)
self.assertTrue(q)
def test_dollar_matches_twice(self):
"$ matches the end of string, and just before the terminating \n"