diff options
Diffstat (limited to 'Lib/test/test_sys.py')
| -rw-r--r-- | Lib/test/test_sys.py | 36 |
1 files changed, 34 insertions, 2 deletions
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py index 77d333d..8314977 100644 --- a/Lib/test/test_sys.py +++ b/Lib/test/test_sys.py @@ -6,6 +6,8 @@ import textwrap import warnings import operator import codecs +import gc +import sysconfig # count the number of test runs, used to create unique # strings to intern in test_intern() @@ -480,7 +482,7 @@ class SysModuleTest(unittest.TestCase): def test_thread_info(self): info = sys.thread_info self.assertEqual(len(info), 3) - self.assertIn(info.name, ('nt', 'os2', 'pthread', 'solaris', None)) + self.assertIn(info.name, ('nt', 'pthread', 'solaris', None)) self.assertIn(info.lock, ('semaphore', 'mutex+cond', None)) def test_43581(self): @@ -609,6 +611,36 @@ class SysModuleTest(unittest.TestCase): ret, out, err = assert_python_ok(*args) self.assertIn(b"free PyDictObjects", err) + @unittest.skipUnless(hasattr(sys, "getallocatedblocks"), + "sys.getallocatedblocks unavailable on this build") + def test_getallocatedblocks(self): + # Some sanity checks + with_pymalloc = sysconfig.get_config_var('WITH_PYMALLOC') + a = sys.getallocatedblocks() + self.assertIs(type(a), int) + if with_pymalloc: + self.assertGreater(a, 0) + else: + # When WITH_PYMALLOC isn't available, we don't know anything + # about the underlying implementation: the function might + # return 0 or something greater. + self.assertGreaterEqual(a, 0) + try: + # While we could imagine a Python session where the number of + # multiple buffer objects would exceed the sharing of references, + # it is unlikely to happen in a normal test run. + self.assertLess(a, sys.gettotalrefcount()) + except AttributeError: + # gettotalrefcount() not available + pass + gc.collect() + b = sys.getallocatedblocks() + self.assertLessEqual(b, a) + gc.collect() + c = sys.getallocatedblocks() + self.assertIn(c, range(b - 50, b + 50)) + + class SizeofTest(unittest.TestCase): def setUp(self): @@ -732,7 +764,7 @@ class SizeofTest(unittest.TestCase): nfrees = len(x.f_code.co_freevars) extras = x.f_code.co_stacksize + x.f_code.co_nlocals +\ ncells + nfrees - 1 - check(x, vsize('12P3i' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P')) + check(x, vsize('13P3i' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P')) # function def func(): pass check(func, size('12P')) |