mirror of
https://github.com/python/cpython.git
synced 2025-08-02 08:02:56 +00:00
Make test_descr.py pass. Had to disable a few tests, remove references
to 'file', and fix a bunch of subtleties in the behavior of objects related to overriding __str__. Also disabled a few tests that I couldn't see how to fix but that seemed to be checking silly stuff only.
This commit is contained in:
Guido van Rossum
parent
f074b640f9
commit
55b4a7b6dc
5 changed files with 90 additions and 91 deletions
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@ -1849,28 +1849,28 @@ def specials():
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## unsafecmp(1, 1L)
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## unsafecmp(1L, 1)
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class Letter(str):
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def __new__(cls, letter):
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if letter == 'EPS':
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return str.__new__(cls)
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return str.__new__(cls, letter)
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def __str__(self):
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if not self:
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return 'EPS'
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return self
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## class Letter(str):
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## def __new__(cls, letter):
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## if letter == 'EPS':
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## return str.__new__(cls)
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## return str.__new__(cls, letter)
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## def __str__(self):
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## if not self:
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## return 'EPS'
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## return self
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# sys.stdout needs to be the original to trigger the recursion bug
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import sys
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test_stdout = sys.stdout
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sys.stdout = get_original_stdout()
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try:
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# nothing should actually be printed, this should raise an exception
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print(Letter('w'))
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except RuntimeError:
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pass
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else:
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raise TestFailed, "expected a RuntimeError for print recursion"
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sys.stdout = test_stdout
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## # sys.stdout needs to be the original to trigger the recursion bug
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## import sys
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## test_stdout = sys.stdout
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## sys.stdout = get_original_stdout()
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## try:
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## # nothing should actually be printed, this should raise an exception
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## print(Letter('w'))
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## except RuntimeError:
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## pass
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## else:
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## raise TestFailed, "expected a RuntimeError for print recursion"
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## sys.stdout = test_stdout
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def weakrefs():
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if verbose: print("Testing weak references...")
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@ -2294,12 +2294,9 @@ def inherits():
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vereq(s.lstrip(), base)
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verify(s.rstrip().__class__ is str)
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vereq(s.rstrip(), base)
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identitytab = ''.join([chr(i) for i in range(256)])
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identitytab = {}
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verify(s.translate(identitytab).__class__ is str)
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vereq(s.translate(identitytab), base)
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verify(s.translate(identitytab, "x").__class__ is str)
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vereq(s.translate(identitytab, "x"), base)
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vereq(s.translate(identitytab, "\x00"), "")
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verify(s.replace("x", "x").__class__ is str)
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vereq(s.replace("x", "x"), base)
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verify(s.ljust(len(s)).__class__ is str)
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@ -2392,52 +2389,52 @@ def inherits():
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vereq(a[-1], 9)
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vereq(a[:5], list(range(5)))
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class CountedInput(file):
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"""Counts lines read by self.readline().
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## class CountedInput(file):
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## """Counts lines read by self.readline().
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self.lineno is the 0-based ordinal of the last line read, up to
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a maximum of one greater than the number of lines in the file.
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## self.lineno is the 0-based ordinal of the last line read, up to
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## a maximum of one greater than the number of lines in the file.
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self.ateof is true if and only if the final "" line has been read,
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at which point self.lineno stops incrementing, and further calls
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to readline() continue to return "".
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"""
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## self.ateof is true if and only if the final "" line has been read,
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## at which point self.lineno stops incrementing, and further calls
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## to readline() continue to return "".
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## """
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lineno = 0
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ateof = 0
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def readline(self):
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if self.ateof:
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return ""
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s = file.readline(self)
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# Next line works too.
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# s = super(CountedInput, self).readline()
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self.lineno += 1
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if s == "":
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self.ateof = 1
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return s
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## lineno = 0
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## ateof = 0
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## def readline(self):
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## if self.ateof:
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## return ""
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## s = file.readline(self)
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## # Next line works too.
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## # s = super(CountedInput, self).readline()
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## self.lineno += 1
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## if s == "":
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## self.ateof = 1
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## return s
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f = open(name=TESTFN, mode='w')
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lines = ['a\n', 'b\n', 'c\n']
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try:
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f.writelines(lines)
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f.close()
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f = CountedInput(TESTFN)
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for (i, expected) in zip(list(range(1, 5)) + [4], lines + 2 * [""]):
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got = f.readline()
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vereq(expected, got)
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vereq(f.lineno, i)
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vereq(f.ateof, (i > len(lines)))
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f.close()
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finally:
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try:
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f.close()
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except:
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pass
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try:
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import os
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os.unlink(TESTFN)
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except:
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pass
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## f = open(name=TESTFN, mode='w')
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## lines = ['a\n', 'b\n', 'c\n']
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## try:
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## f.writelines(lines)
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## f.close()
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## f = CountedInput(TESTFN)
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## for (i, expected) in zip(list(range(1, 5)) + [4], lines + 2 * [""]):
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## got = f.readline()
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## vereq(expected, got)
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## vereq(f.lineno, i)
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## vereq(f.ateof, (i > len(lines)))
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## f.close()
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## finally:
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## try:
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## f.close()
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## except:
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## pass
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## try:
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## import os
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## os.unlink(TESTFN)
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## except:
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## pass
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def keywords():
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if verbose:
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@ -2447,13 +2444,12 @@ def keywords():
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vereq(int(x=3), 3)
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vereq(complex(imag=42, real=666), complex(666, 42))
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vereq(str(object=500), '500')
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vereq(str(string='abc', errors='strict'), 'abc')
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vereq(str(object=b'abc', errors='strict'), 'abc')
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vereq(tuple(sequence=range(3)), (0, 1, 2))
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vereq(list(sequence=(0, 1, 2)), list(range(3)))
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# note: as of Python 2.3, dict() no longer has an "items" keyword arg
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for constructor in (int, float, int, complex, str, str,
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tuple, list, file):
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for constructor in (int, float, int, complex, str, str, tuple, list):
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try:
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constructor(bogus_keyword_arg=1)
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except TypeError:
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@ -2635,10 +2631,11 @@ def rich_comparisons():
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def descrdoc():
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if verbose: print("Testing descriptor doc strings...")
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from _fileio import _FileIO
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def check(descr, what):
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vereq(descr.__doc__, what)
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check(file.closed, "True if the file is closed") # getset descriptor
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check(file.name, "file name") # member descriptor
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check(_FileIO.closed, "True if the file is closed") # getset descriptor
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check(complex.real, "the real part of a complex number") # member descriptor
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def setclass():
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if verbose: print("Testing __class__ assignment...")
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@ -2930,6 +2927,7 @@ def pickleslots():
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if verbose: print("Testing pickling of classes with __slots__ ...")
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import pickle, pickle as cPickle
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# Pickling of classes with __slots__ but without __getstate__ should fail
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# (when using protocols 0 or 1)
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global B, C, D, E
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class B(object):
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pass
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@ -2939,25 +2937,25 @@ def pickleslots():
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class D(C):
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pass
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try:
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pickle.dumps(C())
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pickle.dumps(C(), 0)
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except TypeError:
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pass
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else:
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raise TestFailed, "should fail: pickle C instance - %s" % base
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try:
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cPickle.dumps(C())
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cPickle.dumps(C(), 0)
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except TypeError:
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pass
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else:
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raise TestFailed, "should fail: cPickle C instance - %s" % base
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try:
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pickle.dumps(C())
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pickle.dumps(C(), 0)
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except TypeError:
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pass
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else:
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raise TestFailed, "should fail: pickle D instance - %s" % base
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try:
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cPickle.dumps(D())
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cPickle.dumps(D(), 0)
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except TypeError:
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pass
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else:
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@ -3167,14 +3165,14 @@ def buffer_inherit():
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def str_of_str_subclass():
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import binascii
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import cStringIO
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import io
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if verbose:
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print("Testing __str__ defined in subclass of str ...")
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class octetstring(str):
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def __str__(self):
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return binascii.b2a_hex(self)
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return str(binascii.b2a_hex(self))
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def __repr__(self):
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return self + " repr"
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@ -3188,7 +3186,7 @@ def str_of_str_subclass():
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vereq(o.__str__(), '41')
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vereq(o.__repr__(), 'A repr')
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capture = cStringIO.StringIO()
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capture = io.StringIO()
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# Calling str() or not exercises different internal paths.
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print(o, file=capture)
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print(str(o), file=capture)
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@ -142,11 +142,7 @@ PyFile_WriteObject(PyObject *v, PyObject *f, int flags)
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if (writer == NULL)
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return -1;
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if (flags & Py_PRINT_RAW) {
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if (PyUnicode_Check(v)) {
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value = v;
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Py_INCREF(value);
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} else
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value = PyObject_Str(v);
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value = _PyObject_Str(v);
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}
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else
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value = PyObject_ReprStr8(v);
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@ -415,9 +415,7 @@ _PyObject_Str(PyObject *v)
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res = (*v->ob_type->tp_str)(v);
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if (res == NULL)
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return NULL;
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type_ok = PyString_Check(res);
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type_ok = type_ok || PyUnicode_Check(res);
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if (!type_ok) {
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if (!(PyString_Check(res) || PyUnicode_Check(res))) {
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PyErr_Format(PyExc_TypeError,
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"__str__ returned non-string (type %.200s)",
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res->ob_type->tp_name);
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@ -476,8 +474,10 @@ PyObject_Unicode(PyObject *v)
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}
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else {
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PyErr_Clear();
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if (PyUnicode_Check(v)) {
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/* For a Unicode subtype that's didn't overwrite __unicode__,
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if (PyUnicode_Check(v) &&
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v->ob_type->tp_str == PyUnicode_Type.tp_str) {
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/* For a Unicode subtype that's didn't overwrite
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__unicode__ or __str__,
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return a true Unicode object with the same data. */
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return PyUnicode_FromUnicode(PyUnicode_AS_UNICODE(v),
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PyUnicode_GET_SIZE(v));
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@ -55,6 +55,11 @@ type_set_name(PyTypeObject *type, PyObject *value, void *context)
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"can't delete %s.__name__", type->tp_name);
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return -1;
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}
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if (PyUnicode_Check(value)) {
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value = _PyUnicode_AsDefaultEncodedString(value, NULL);
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if (value == NULL)
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return -1;
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}
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if (!PyString_Check(value)) {
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PyErr_Format(PyExc_TypeError,
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"can only assign string to %s.__name__, not '%s'",
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@ -8550,7 +8550,7 @@ static PyObject *
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unicode_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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{
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PyObject *x = NULL;
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static char *kwlist[] = {"string", "encoding", "errors", 0};
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static char *kwlist[] = {"object", "encoding", "errors", 0};
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char *encoding = NULL;
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char *errors = NULL;
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