diff options
Diffstat (limited to 'Lib/test/test_sys.py')
| -rw-r--r-- | Lib/test/test_sys.py | 44 |
1 files changed, 38 insertions, 6 deletions
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py index 9d97c8d..65cb8ef 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): @@ -513,7 +515,7 @@ class SysModuleTest(unittest.TestCase): attrs = ("debug", "inspect", "interactive", "optimize", "dont_write_bytecode", "no_user_site", "no_site", "ignore_environment", "verbose", - "bytes_warning", "quiet", "hash_randomization") + "bytes_warning", "quiet", "hash_randomization", "isolated") for attr in attrs: self.assertTrue(hasattr(sys.flags, attr), attr) self.assertEqual(type(getattr(sys.flags, attr)), int, attr) @@ -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('13P3ic' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P')) # function def func(): pass check(func, size('12P')) @@ -778,7 +810,7 @@ class SizeofTest(unittest.TestCase): # memoryview check(memoryview(b''), size('Pnin 2P2n2i5P 3cPn')) # module - check(unittest, size('PnP')) + check(unittest, size('PnPPP')) # None check(None, size('')) # NotImplementedType @@ -832,11 +864,11 @@ class SizeofTest(unittest.TestCase): check((1,2,3), vsize('') + 3*self.P) # type # static type: PyTypeObject - s = vsize('P2n15Pl4Pn9Pn11PI') + s = vsize('P2n15Pl4Pn9Pn11PIP') check(int, s) # (PyTypeObject + PyNumberMethods + PyMappingMethods + # PySequenceMethods + PyBufferProcs + 4P) - s = vsize('P2n15Pl4Pn9Pn11PI') + struct.calcsize('34P 3P 10P 2P 4P') + s = vsize('P2n15Pl4Pn9Pn11PIP') + struct.calcsize('34P 3P 10P 2P 4P') # Separate block for PyDictKeysObject with 4 entries s += struct.calcsize("2nPn") + 4*struct.calcsize("n2P") # class |