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Skip long repr tests when the cached pyc file's path length would exceed the maximum Win32 path length.

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This should fix a failure on one of the XP buildbots.
This commit is contained in:
Antoine Pitrou 2012-04-24 13:55:35 +02:00
parent b9f4c9daad
commit 01296da8df
1 changed files with 25 additions and 3 deletions
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28
Lib/test/test_reprlib.py
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@ -3,6 +3,7 @@
Nick Mathewson Nick Mathewson
""" """
import imp
import sys import sys
import os import os
import shutil import shutil
@ -199,10 +200,11 @@ def write_file(path, text):
fp.write(text) fp.write(text)
class LongReprTest(unittest.TestCase): class LongReprTest(unittest.TestCase):
longname = 'areallylongpackageandmodulenametotestreprtruncation'
def setUp(self): def setUp(self):
longname = 'areallylongpackageandmodulenametotestreprtruncation' self.pkgname = os.path.join(self.longname)
self.pkgname = os.path.join(longname) self.subpkgname = os.path.join(self.longname, self.longname)
self.subpkgname = os.path.join(longname, longname)
# Make the package and subpackage # Make the package and subpackage
shutil.rmtree(self.pkgname, ignore_errors=True) shutil.rmtree(self.pkgname, ignore_errors=True)
os.mkdir(self.pkgname) os.mkdir(self.pkgname)
@ -232,7 +234,23 @@ class LongReprTest(unittest.TestCase):
os.remove(p) os.remove(p)
del sys.path[0] del sys.path[0]
def _check_path_limitations(self, module_name):
# base directory
source_path_len = len(self.here)
# a path separator + `longname` (twice)
source_path_len += 2 * (len(self.longname) + 1)
# a path separator + `module_name` + ".py"
source_path_len += len(module_name) + 1 + len(".py")
cached_path_len = source_path_len + len(imp.cache_from_source("x.py")) - len("x.py")
if os.name == 'nt' and cached_path_len >= 259:
# Under Windows, the max path len is 260 including C's terminating
# NUL character.
# (see http://msdn.microsoft.com/en-us/library/windows/desktop/aa365247%28v=vs.85%29.aspx#maxpath)
self.skipTest("test paths too long (%d characters) for Windows' 260 character limit"
% cached_path_len)
def test_module(self): def test_module(self):
self._check_path_limitations(self.pkgname)
eq = self.assertEqual eq = self.assertEqual
create_empty_file(os.path.join(self.subpkgname, self.pkgname + '.py')) create_empty_file(os.path.join(self.subpkgname, self.pkgname + '.py'))
importlib.invalidate_caches() importlib.invalidate_caches()
@ -242,6 +260,7 @@ class LongReprTest(unittest.TestCase):
eq(repr(sys), "<module 'sys' (built-in)>") eq(repr(sys), "<module 'sys' (built-in)>")
def test_type(self): def test_type(self):
self._check_path_limitations('foo')
eq = self.assertEqual eq = self.assertEqual
write_file(os.path.join(self.subpkgname, 'foo.py'), '''\ write_file(os.path.join(self.subpkgname, 'foo.py'), '''\
class foo(object): class foo(object):
@ -258,6 +277,7 @@ class foo(object):
pass pass
def test_class(self): def test_class(self):
self._check_path_limitations('bar')
write_file(os.path.join(self.subpkgname, 'bar.py'), '''\ write_file(os.path.join(self.subpkgname, 'bar.py'), '''\
class bar: class bar:
pass pass
@ -268,6 +288,7 @@ class bar:
self.assertEqual(repr(bar.bar), "<class '%s.bar'>" % bar.__name__) self.assertEqual(repr(bar.bar), "<class '%s.bar'>" % bar.__name__)
def test_instance(self): def test_instance(self):
self._check_path_limitations('baz')
write_file(os.path.join(self.subpkgname, 'baz.py'), '''\ write_file(os.path.join(self.subpkgname, 'baz.py'), '''\
class baz: class baz:
pass pass
@ -279,6 +300,7 @@ class baz:
"<%s.baz object at 0x" % baz.__name__)) "<%s.baz object at 0x" % baz.__name__))
def test_method(self): def test_method(self):
self._check_path_limitations('qux')
eq = self.assertEqual eq = self.assertEqual
write_file(os.path.join(self.subpkgname, 'qux.py'), '''\ write_file(os.path.join(self.subpkgname, 'qux.py'), '''\
class aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa: class aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa: