diff options
Diffstat (limited to 'Lib/test/test_sys.py')
| -rw-r--r-- | Lib/test/test_sys.py | 106 |
1 files changed, 97 insertions, 9 deletions
diff --git a/Lib/test/test_sys.py b/Lib/test/test_sys.py index acf6d364f2..7be8c9cdaa 100644 --- a/Lib/test/test_sys.py +++ b/Lib/test/test_sys.py @@ -6,6 +6,9 @@ import textwrap import warnings import operator import codecs +import gc +import sysconfig +import platform # count the number of test runs, used to create unique # strings to intern in test_intern() @@ -248,7 +251,7 @@ class SysModuleTest(unittest.TestCase): sys.setrecursionlimit(%d) f()""") - with test.support.suppress_crash_popup(): + with test.support.SuppressCrashReport(): for i in (50, 1000): sub = subprocess.Popen([sys.executable, '-c', code % i], stderr=subprocess.PIPE) @@ -429,7 +432,7 @@ class SysModuleTest(unittest.TestCase): self.assertEqual(type(sys.int_info.sizeof_digit), int) self.assertIsInstance(sys.hexversion, int) - self.assertEqual(len(sys.hash_info), 5) + self.assertEqual(len(sys.hash_info), 9) self.assertLess(sys.hash_info.modulus, 2**sys.hash_info.width) # sys.hash_info.modulus should be a prime; we do a quick # probable primality test (doesn't exclude the possibility of @@ -444,6 +447,22 @@ class SysModuleTest(unittest.TestCase): self.assertIsInstance(sys.hash_info.inf, int) self.assertIsInstance(sys.hash_info.nan, int) self.assertIsInstance(sys.hash_info.imag, int) + algo = sysconfig.get_config_var("Py_HASH_ALGORITHM") + if sys.hash_info.algorithm in {"fnv", "siphash24"}: + self.assertIn(sys.hash_info.hash_bits, {32, 64}) + self.assertIn(sys.hash_info.seed_bits, {32, 64, 128}) + + if algo == 1: + self.assertEqual(sys.hash_info.algorithm, "siphash24") + elif algo == 2: + self.assertEqual(sys.hash_info.algorithm, "fnv") + else: + self.assertIn(sys.hash_info.algorithm, {"fnv", "siphash24"}) + else: + # PY_HASH_EXTERNAL + self.assertEqual(algo, 0) + self.assertGreaterEqual(sys.hash_info.cutoff, 0) + self.assertLess(sys.hash_info.cutoff, 8) self.assertIsInstance(sys.maxsize, int) self.assertIsInstance(sys.maxunicode, int) @@ -481,7 +500,7 @@ 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): @@ -514,7 +533,7 @@ 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) @@ -543,6 +562,42 @@ class SysModuleTest(unittest.TestCase): out = p.communicate()[0].strip() self.assertEqual(out, b'?') + env["PYTHONIOENCODING"] = "ascii" + p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xa2))'], + stdout=subprocess.PIPE, stderr=subprocess.PIPE, + env=env) + out, err = p.communicate() + self.assertEqual(out, b'') + self.assertIn(b'UnicodeEncodeError:', err) + self.assertIn(rb"'\xa2'", err) + + env["PYTHONIOENCODING"] = "ascii:" + p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xa2))'], + stdout=subprocess.PIPE, stderr=subprocess.PIPE, + env=env) + out, err = p.communicate() + self.assertEqual(out, b'') + self.assertIn(b'UnicodeEncodeError:', err) + self.assertIn(rb"'\xa2'", err) + + env["PYTHONIOENCODING"] = ":surrogateescape" + p = subprocess.Popen([sys.executable, "-c", 'print(chr(0xdcbd))'], + stdout=subprocess.PIPE, env=env) + out = p.communicate()[0].strip() + self.assertEqual(out, b'\xbd') + + @unittest.skipUnless(test.support.FS_NONASCII, + 'requires OS support of non-ASCII encodings') + def test_ioencoding_nonascii(self): + env = dict(os.environ) + + env["PYTHONIOENCODING"] = "" + p = subprocess.Popen([sys.executable, "-c", + 'print(%a)' % test.support.FS_NONASCII], + stdout=subprocess.PIPE, env=env) + out = p.communicate()[0].strip() + self.assertEqual(out, os.fsencode(test.support.FS_NONASCII)) + @unittest.skipIf(sys.base_prefix != sys.prefix, 'Test is not venv-compatible') def test_executable(self): @@ -610,6 +665,39 @@ class SysModuleTest(unittest.TestCase): ret, out, err = assert_python_ok(*args) self.assertIn(b"free PyDictObjects", err) + # The function has no parameter + self.assertRaises(TypeError, sys._debugmallocstats, True) + + @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): @@ -654,7 +742,7 @@ class SizeofTest(unittest.TestCase): samples = [b'', b'u'*100000] for sample in samples: x = bytearray(sample) - check(x, vsize('inP') + x.__alloc__()) + check(x, vsize('n2Pi') + x.__alloc__()) # bytearray_iterator check(iter(bytearray()), size('nP')) # cell @@ -733,7 +821,7 @@ 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('12P3ic' + CO_MAXBLOCKS*'3i' + 'P' + extras*'P')) # function def func(): pass check(func, size('12P')) @@ -779,7 +867,7 @@ 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 @@ -833,11 +921,11 @@ 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 |