| # Run the _testcapi module tests (tests for the Python/C API): by defn, |
| # these are all functions _testcapi exports whose name begins with 'test_'. |
| |
| import os |
| import pickle |
| import random |
| import re |
| import subprocess |
| import sys |
| import sysconfig |
| import textwrap |
| import time |
| import unittest |
| from test import support |
| from test.support import MISSING_C_DOCSTRINGS |
| from test.support.script_helper import assert_python_failure, assert_python_ok |
| try: |
| import _posixsubprocess |
| except ImportError: |
| _posixsubprocess = None |
| try: |
| import threading |
| except ImportError: |
| threading = None |
| # Skip this test if the _testcapi module isn't available. |
| _testcapi = support.import_module('_testcapi') |
| |
| # Were we compiled --with-pydebug or with #define Py_DEBUG? |
| Py_DEBUG = hasattr(sys, 'gettotalrefcount') |
| |
| |
| def testfunction(self): |
| """some doc""" |
| return self |
| |
| class InstanceMethod: |
| id = _testcapi.instancemethod(id) |
| testfunction = _testcapi.instancemethod(testfunction) |
| |
| class CAPITest(unittest.TestCase): |
| |
| def test_instancemethod(self): |
| inst = InstanceMethod() |
| self.assertEqual(id(inst), inst.id()) |
| self.assertTrue(inst.testfunction() is inst) |
| self.assertEqual(inst.testfunction.__doc__, testfunction.__doc__) |
| self.assertEqual(InstanceMethod.testfunction.__doc__, testfunction.__doc__) |
| |
| InstanceMethod.testfunction.attribute = "test" |
| self.assertEqual(testfunction.attribute, "test") |
| self.assertRaises(AttributeError, setattr, inst.testfunction, "attribute", "test") |
| |
| @unittest.skipUnless(threading, 'Threading required for this test.') |
| def test_no_FatalError_infinite_loop(self): |
| with support.SuppressCrashReport(): |
| p = subprocess.Popen([sys.executable, "-c", |
| 'import _testcapi;' |
| '_testcapi.crash_no_current_thread()'], |
| stdout=subprocess.PIPE, |
| stderr=subprocess.PIPE) |
| (out, err) = p.communicate() |
| self.assertEqual(out, b'') |
| # This used to cause an infinite loop. |
| self.assertTrue(err.rstrip().startswith( |
| b'Fatal Python error:' |
| b' PyThreadState_Get: no current thread')) |
| |
| def test_memoryview_from_NULL_pointer(self): |
| self.assertRaises(ValueError, _testcapi.make_memoryview_from_NULL_pointer) |
| |
| def test_exc_info(self): |
| raised_exception = ValueError("5") |
| new_exc = TypeError("TEST") |
| try: |
| raise raised_exception |
| except ValueError as e: |
| tb = e.__traceback__ |
| orig_sys_exc_info = sys.exc_info() |
| orig_exc_info = _testcapi.set_exc_info(new_exc.__class__, new_exc, None) |
| new_sys_exc_info = sys.exc_info() |
| new_exc_info = _testcapi.set_exc_info(*orig_exc_info) |
| reset_sys_exc_info = sys.exc_info() |
| |
| self.assertEqual(orig_exc_info[1], e) |
| |
| self.assertSequenceEqual(orig_exc_info, (raised_exception.__class__, raised_exception, tb)) |
| self.assertSequenceEqual(orig_sys_exc_info, orig_exc_info) |
| self.assertSequenceEqual(reset_sys_exc_info, orig_exc_info) |
| self.assertSequenceEqual(new_exc_info, (new_exc.__class__, new_exc, None)) |
| self.assertSequenceEqual(new_sys_exc_info, new_exc_info) |
| else: |
| self.assertTrue(False) |
| |
| @unittest.skipUnless(_posixsubprocess, '_posixsubprocess required for this test.') |
| def test_seq_bytes_to_charp_array(self): |
| # Issue #15732: crash in _PySequence_BytesToCharpArray() |
| class Z(object): |
| def __len__(self): |
| return 1 |
| self.assertRaises(TypeError, _posixsubprocess.fork_exec, |
| 1,Z(),3,(1, 2),5,6,7,8,9,10,11,12,13,14,15,16,17) |
| # Issue #15736: overflow in _PySequence_BytesToCharpArray() |
| class Z(object): |
| def __len__(self): |
| return sys.maxsize |
| def __getitem__(self, i): |
| return b'x' |
| self.assertRaises(MemoryError, _posixsubprocess.fork_exec, |
| 1,Z(),3,(1, 2),5,6,7,8,9,10,11,12,13,14,15,16,17) |
| |
| @unittest.skipUnless(_posixsubprocess, '_posixsubprocess required for this test.') |
| def test_subprocess_fork_exec(self): |
| class Z(object): |
| def __len__(self): |
| return 1 |
| |
| # Issue #15738: crash in subprocess_fork_exec() |
| self.assertRaises(TypeError, _posixsubprocess.fork_exec, |
| Z(),[b'1'],3,(1, 2),5,6,7,8,9,10,11,12,13,14,15,16,17) |
| |
| @unittest.skipIf(MISSING_C_DOCSTRINGS, |
| "Signature information for builtins requires docstrings") |
| def test_docstring_signature_parsing(self): |
| |
| self.assertEqual(_testcapi.no_docstring.__doc__, None) |
| self.assertEqual(_testcapi.no_docstring.__text_signature__, None) |
| |
| self.assertEqual(_testcapi.docstring_empty.__doc__, None) |
| self.assertEqual(_testcapi.docstring_empty.__text_signature__, None) |
| |
| self.assertEqual(_testcapi.docstring_no_signature.__doc__, |
| "This docstring has no signature.") |
| self.assertEqual(_testcapi.docstring_no_signature.__text_signature__, None) |
| |
| self.assertEqual(_testcapi.docstring_with_invalid_signature.__doc__, |
| "docstring_with_invalid_signature($module, /, boo)\n" |
| "\n" |
| "This docstring has an invalid signature." |
| ) |
| self.assertEqual(_testcapi.docstring_with_invalid_signature.__text_signature__, None) |
| |
| self.assertEqual(_testcapi.docstring_with_invalid_signature2.__doc__, |
| "docstring_with_invalid_signature2($module, /, boo)\n" |
| "\n" |
| "--\n" |
| "\n" |
| "This docstring also has an invalid signature." |
| ) |
| self.assertEqual(_testcapi.docstring_with_invalid_signature2.__text_signature__, None) |
| |
| self.assertEqual(_testcapi.docstring_with_signature.__doc__, |
| "This docstring has a valid signature.") |
| self.assertEqual(_testcapi.docstring_with_signature.__text_signature__, "($module, /, sig)") |
| |
| self.assertEqual(_testcapi.docstring_with_signature_but_no_doc.__doc__, None) |
| self.assertEqual(_testcapi.docstring_with_signature_but_no_doc.__text_signature__, |
| "($module, /, sig)") |
| |
| self.assertEqual(_testcapi.docstring_with_signature_and_extra_newlines.__doc__, |
| "\nThis docstring has a valid signature and some extra newlines.") |
| self.assertEqual(_testcapi.docstring_with_signature_and_extra_newlines.__text_signature__, |
| "($module, /, parameter)") |
| |
| def test_c_type_with_matrix_multiplication(self): |
| M = _testcapi.matmulType |
| m1 = M() |
| m2 = M() |
| self.assertEqual(m1 @ m2, ("matmul", m1, m2)) |
| self.assertEqual(m1 @ 42, ("matmul", m1, 42)) |
| self.assertEqual(42 @ m1, ("matmul", 42, m1)) |
| o = m1 |
| o @= m2 |
| self.assertEqual(o, ("imatmul", m1, m2)) |
| o = m1 |
| o @= 42 |
| self.assertEqual(o, ("imatmul", m1, 42)) |
| o = 42 |
| o @= m1 |
| self.assertEqual(o, ("matmul", 42, m1)) |
| |
| def test_return_null_without_error(self): |
| # Issue #23571: A function must not return NULL without setting an |
| # error |
| if Py_DEBUG: |
| code = textwrap.dedent(""" |
| import _testcapi |
| from test import support |
| |
| with support.SuppressCrashReport(): |
| _testcapi.return_null_without_error() |
| """) |
| rc, out, err = assert_python_failure('-c', code) |
| self.assertRegex(err.replace(b'\r', b''), |
| br'Fatal Python error: a function returned NULL ' |
| br'without setting an error\n' |
| br'SystemError: <built-in function ' |
| br'return_null_without_error> returned NULL ' |
| br'without setting an error\n' |
| br'\n' |
| br'Current thread.*:\n' |
| br' File .*", line 6 in <module>') |
| else: |
| with self.assertRaises(SystemError) as cm: |
| _testcapi.return_null_without_error() |
| self.assertRegex(str(cm.exception), |
| 'return_null_without_error.* ' |
| 'returned NULL without setting an error') |
| |
| def test_return_result_with_error(self): |
| # Issue #23571: A function must not return a result with an error set |
| if Py_DEBUG: |
| code = textwrap.dedent(""" |
| import _testcapi |
| from test import support |
| |
| with support.SuppressCrashReport(): |
| _testcapi.return_result_with_error() |
| """) |
| rc, out, err = assert_python_failure('-c', code) |
| self.assertRegex(err.replace(b'\r', b''), |
| br'Fatal Python error: a function returned a ' |
| br'result with an error set\n' |
| br'ValueError\n' |
| br'\n' |
| br'The above exception was the direct cause ' |
| br'of the following exception:\n' |
| br'\n' |
| br'SystemError: <built-in ' |
| br'function return_result_with_error> ' |
| br'returned a result with an error set\n' |
| br'\n' |
| br'Current thread.*:\n' |
| br' File .*, line 6 in <module>') |
| else: |
| with self.assertRaises(SystemError) as cm: |
| _testcapi.return_result_with_error() |
| self.assertRegex(str(cm.exception), |
| 'return_result_with_error.* ' |
| 'returned a result with an error set') |
| |
| def test_buildvalue_N(self): |
| _testcapi.test_buildvalue_N() |
| |
| def test_set_nomemory(self): |
| code = """if 1: |
| import _testcapi |
| |
| class C(): pass |
| |
| # The first loop tests both functions and that remove_mem_hooks() |
| # can be called twice in a row. The second loop checks a call to |
| # set_nomemory() after a call to remove_mem_hooks(). The third |
| # loop checks the start and stop arguments of set_nomemory(). |
| for outer_cnt in range(1, 4): |
| start = 10 * outer_cnt |
| for j in range(100): |
| if j == 0: |
| if outer_cnt != 3: |
| _testcapi.set_nomemory(start) |
| else: |
| _testcapi.set_nomemory(start, start + 1) |
| try: |
| C() |
| except MemoryError as e: |
| if outer_cnt != 3: |
| _testcapi.remove_mem_hooks() |
| print('MemoryError', outer_cnt, j) |
| _testcapi.remove_mem_hooks() |
| break |
| """ |
| rc, out, err = assert_python_ok('-c', code) |
| self.assertIn(b'MemoryError 1 10', out) |
| self.assertIn(b'MemoryError 2 20', out) |
| self.assertIn(b'MemoryError 3 30', out) |
| |
| |
| @unittest.skipUnless(threading, 'Threading required for this test.') |
| class TestPendingCalls(unittest.TestCase): |
| |
| def pendingcalls_submit(self, l, n): |
| def callback(): |
| #this function can be interrupted by thread switching so let's |
| #use an atomic operation |
| l.append(None) |
| |
| for i in range(n): |
| time.sleep(random.random()*0.02) #0.01 secs on average |
| #try submitting callback until successful. |
| #rely on regular interrupt to flush queue if we are |
| #unsuccessful. |
| while True: |
| if _testcapi._pending_threadfunc(callback): |
| break; |
| |
| def pendingcalls_wait(self, l, n, context = None): |
| #now, stick around until l[0] has grown to 10 |
| count = 0; |
| while len(l) != n: |
| #this busy loop is where we expect to be interrupted to |
| #run our callbacks. Note that callbacks are only run on the |
| #main thread |
| if False and support.verbose: |
| print("(%i)"%(len(l),),) |
| for i in range(1000): |
| a = i*i |
| if context and not context.event.is_set(): |
| continue |
| count += 1 |
| self.assertTrue(count < 10000, |
| "timeout waiting for %i callbacks, got %i"%(n, len(l))) |
| if False and support.verbose: |
| print("(%i)"%(len(l),)) |
| |
| def test_pendingcalls_threaded(self): |
| |
| #do every callback on a separate thread |
| n = 32 #total callbacks |
| threads = [] |
| class foo(object):pass |
| context = foo() |
| context.l = [] |
| context.n = 2 #submits per thread |
| context.nThreads = n // context.n |
| context.nFinished = 0 |
| context.lock = threading.Lock() |
| context.event = threading.Event() |
| |
| threads = [threading.Thread(target=self.pendingcalls_thread, |
| args=(context,)) |
| for i in range(context.nThreads)] |
| with support.start_threads(threads): |
| self.pendingcalls_wait(context.l, n, context) |
| |
| def pendingcalls_thread(self, context): |
| try: |
| self.pendingcalls_submit(context.l, context.n) |
| finally: |
| with context.lock: |
| context.nFinished += 1 |
| nFinished = context.nFinished |
| if False and support.verbose: |
| print("finished threads: ", nFinished) |
| if nFinished == context.nThreads: |
| context.event.set() |
| |
| def test_pendingcalls_non_threaded(self): |
| #again, just using the main thread, likely they will all be dispatched at |
| #once. It is ok to ask for too many, because we loop until we find a slot. |
| #the loop can be interrupted to dispatch. |
| #there are only 32 dispatch slots, so we go for twice that! |
| l = [] |
| n = 64 |
| self.pendingcalls_submit(l, n) |
| self.pendingcalls_wait(l, n) |
| |
| |
| class SubinterpreterTest(unittest.TestCase): |
| |
| def test_subinterps(self): |
| import builtins |
| r, w = os.pipe() |
| code = """if 1: |
| import sys, builtins, pickle |
| with open({:d}, "wb") as f: |
| pickle.dump(id(sys.modules), f) |
| pickle.dump(id(builtins), f) |
| """.format(w) |
| with open(r, "rb") as f: |
| ret = support.run_in_subinterp(code) |
| self.assertEqual(ret, 0) |
| self.assertNotEqual(pickle.load(f), id(sys.modules)) |
| self.assertNotEqual(pickle.load(f), id(builtins)) |
| |
| |
| # Bug #6012 |
| class Test6012(unittest.TestCase): |
| def test(self): |
| self.assertEqual(_testcapi.argparsing("Hello", "World"), 1) |
| |
| |
| class EmbeddingTests(unittest.TestCase): |
| def setUp(self): |
| here = os.path.abspath(__file__) |
| basepath = os.path.dirname(os.path.dirname(os.path.dirname(here))) |
| exename = "_testembed" |
| if sys.platform.startswith("win"): |
| ext = ("_d" if "_d" in sys.executable else "") + ".exe" |
| exename += ext |
| exepath = os.path.dirname(sys.executable) |
| else: |
| exepath = os.path.join(basepath, "Programs") |
| self.test_exe = exe = os.path.join(exepath, exename) |
| if not os.path.exists(exe): |
| self.skipTest("%r doesn't exist" % exe) |
| # This is needed otherwise we get a fatal error: |
| # "Py_Initialize: Unable to get the locale encoding |
| # LookupError: no codec search functions registered: can't find encoding" |
| self.oldcwd = os.getcwd() |
| os.chdir(basepath) |
| |
| def tearDown(self): |
| os.chdir(self.oldcwd) |
| |
| def run_embedded_interpreter(self, *args, env=None): |
| """Runs a test in the embedded interpreter""" |
| cmd = [self.test_exe] |
| cmd.extend(args) |
| if env is not None and sys.platform == 'win32': |
| # Windows requires at least the SYSTEMROOT environment variable to |
| # start Python. |
| env = env.copy() |
| env['SYSTEMROOT'] = os.environ['SYSTEMROOT'] |
| |
| p = subprocess.Popen(cmd, |
| stdout=subprocess.PIPE, |
| stderr=subprocess.PIPE, |
| universal_newlines=True, |
| env=env) |
| (out, err) = p.communicate() |
| self.assertEqual(p.returncode, 0, |
| "bad returncode %d, stderr is %r" % |
| (p.returncode, err)) |
| return out, err |
| |
| def test_repeated_init_and_subinterpreters(self): |
| # This is just a "don't crash" test |
| out, err = self.run_embedded_interpreter('repeated_init_and_subinterpreters') |
| if support.verbose: |
| print() |
| print(out) |
| print(err) |
| |
| @staticmethod |
| def _get_default_pipe_encoding(): |
| rp, wp = os.pipe() |
| try: |
| with os.fdopen(wp, 'w') as w: |
| default_pipe_encoding = w.encoding |
| finally: |
| os.close(rp) |
| return default_pipe_encoding |
| |
| def test_forced_io_encoding(self): |
| # Checks forced configuration of embedded interpreter IO streams |
| env = dict(os.environ, PYTHONIOENCODING="utf-8:surrogateescape") |
| out, err = self.run_embedded_interpreter("forced_io_encoding", env=env) |
| if support.verbose: |
| print() |
| print(out) |
| print(err) |
| expected_stream_encoding = "utf-8" |
| expected_errors = "surrogateescape" |
| expected_pipe_encoding = self._get_default_pipe_encoding() |
| expected_output = '\n'.join([ |
| "--- Use defaults ---", |
| "Expected encoding: default", |
| "Expected errors: default", |
| "stdin: {in_encoding}:{errors}", |
| "stdout: {out_encoding}:{errors}", |
| "stderr: {out_encoding}:backslashreplace", |
| "--- Set errors only ---", |
| "Expected encoding: default", |
| "Expected errors: ignore", |
| "stdin: {in_encoding}:ignore", |
| "stdout: {out_encoding}:ignore", |
| "stderr: {out_encoding}:backslashreplace", |
| "--- Set encoding only ---", |
| "Expected encoding: latin-1", |
| "Expected errors: default", |
| "stdin: latin-1:{errors}", |
| "stdout: latin-1:{errors}", |
| "stderr: latin-1:backslashreplace", |
| "--- Set encoding and errors ---", |
| "Expected encoding: latin-1", |
| "Expected errors: replace", |
| "stdin: latin-1:replace", |
| "stdout: latin-1:replace", |
| "stderr: latin-1:backslashreplace"]) |
| expected_output = expected_output.format( |
| in_encoding=expected_stream_encoding, |
| out_encoding=expected_stream_encoding, |
| errors=expected_errors) |
| # This is useful if we ever trip over odd platform behaviour |
| self.maxDiff = None |
| self.assertEqual(out.strip(), expected_output) |
| |
| def test_pre_initialization_api(self): |
| """ |
| Checks the few parts of the C-API that work before the runtine |
| is initialized (via Py_Initialize()). |
| """ |
| env = dict(os.environ, PYTHONPATH=os.pathsep.join(sys.path)) |
| out, err = self.run_embedded_interpreter("pre_initialization_api", env=env) |
| self.assertEqual(out, '') |
| self.assertEqual(err, '') |
| |
| |
| class SkipitemTest(unittest.TestCase): |
| |
| def test_skipitem(self): |
| """ |
| If this test failed, you probably added a new "format unit" |
| in Python/getargs.c, but neglected to update our poor friend |
| skipitem() in the same file. (If so, shame on you!) |
| |
| With a few exceptions**, this function brute-force tests all |
| printable ASCII*** characters (32 to 126 inclusive) as format units, |
| checking to see that PyArg_ParseTupleAndKeywords() return consistent |
| errors both when the unit is attempted to be used and when it is |
| skipped. If the format unit doesn't exist, we'll get one of two |
| specific error messages (one for used, one for skipped); if it does |
| exist we *won't* get that error--we'll get either no error or some |
| other error. If we get the specific "does not exist" error for one |
| test and not for the other, there's a mismatch, and the test fails. |
| |
| ** Some format units have special funny semantics and it would |
| be difficult to accommodate them here. Since these are all |
| well-established and properly skipped in skipitem() we can |
| get away with not testing them--this test is really intended |
| to catch *new* format units. |
| |
| *** Python C source files must be ASCII. Therefore it's impossible |
| to have non-ASCII format units. |
| |
| """ |
| empty_tuple = () |
| tuple_1 = (0,) |
| dict_b = {'b':1} |
| keywords = ["a", "b"] |
| |
| for i in range(32, 127): |
| c = chr(i) |
| |
| # skip parentheses, the error reporting is inconsistent about them |
| # skip 'e', it's always a two-character code |
| # skip '|' and '$', they don't represent arguments anyway |
| if c in '()e|$': |
| continue |
| |
| # test the format unit when not skipped |
| format = c + "i" |
| try: |
| _testcapi.parse_tuple_and_keywords(tuple_1, dict_b, |
| format, keywords) |
| when_not_skipped = False |
| except SystemError as e: |
| s = "argument 1 (impossible<bad format char>)" |
| when_not_skipped = (str(e) == s) |
| except TypeError: |
| when_not_skipped = False |
| |
| # test the format unit when skipped |
| optional_format = "|" + format |
| try: |
| _testcapi.parse_tuple_and_keywords(empty_tuple, dict_b, |
| optional_format, keywords) |
| when_skipped = False |
| except SystemError as e: |
| s = "impossible<bad format char>: '{}'".format(format) |
| when_skipped = (str(e) == s) |
| |
| message = ("test_skipitem_parity: " |
| "detected mismatch between convertsimple and skipitem " |
| "for format unit '{}' ({}), not skipped {}, skipped {}".format( |
| c, i, when_skipped, when_not_skipped)) |
| self.assertIs(when_skipped, when_not_skipped, message) |
| |
| def test_parse_tuple_and_keywords(self): |
| # Test handling errors in the parse_tuple_and_keywords helper itself |
| self.assertRaises(TypeError, _testcapi.parse_tuple_and_keywords, |
| (), {}, 42, []) |
| self.assertRaises(ValueError, _testcapi.parse_tuple_and_keywords, |
| (), {}, '', 42) |
| self.assertRaises(ValueError, _testcapi.parse_tuple_and_keywords, |
| (), {}, '', [''] * 42) |
| self.assertRaises(ValueError, _testcapi.parse_tuple_and_keywords, |
| (), {}, '', [42]) |
| |
| def test_bad_use(self): |
| # Test handling invalid format and keywords in |
| # PyArg_ParseTupleAndKeywords() |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (1,), {}, '||O', ['a']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (1, 2), {}, '|O|O', ['a', 'b']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (), {'a': 1}, '$$O', ['a']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (), {'a': 1, 'b': 2}, '$O$O', ['a', 'b']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (), {'a': 1}, '$|O', ['a']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (), {'a': 1, 'b': 2}, '$O|O', ['a', 'b']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (1,), {}, '|O', ['a', 'b']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (1,), {}, '|OO', ['a']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (), {}, '|$O', ['']) |
| self.assertRaises(SystemError, _testcapi.parse_tuple_and_keywords, |
| (), {}, '|OO', ['a', '']) |
| |
| def test_positional_only(self): |
| parse = _testcapi.parse_tuple_and_keywords |
| |
| parse((1, 2, 3), {}, 'OOO', ['', '', 'a']) |
| parse((1, 2), {'a': 3}, 'OOO', ['', '', 'a']) |
| with self.assertRaisesRegex(TypeError, |
| r'Function takes at least 2 positional arguments \(1 given\)'): |
| parse((1,), {'a': 3}, 'OOO', ['', '', 'a']) |
| parse((1,), {}, 'O|OO', ['', '', 'a']) |
| with self.assertRaisesRegex(TypeError, |
| r'Function takes at least 1 positional arguments \(0 given\)'): |
| parse((), {}, 'O|OO', ['', '', 'a']) |
| parse((1, 2), {'a': 3}, 'OO$O', ['', '', 'a']) |
| with self.assertRaisesRegex(TypeError, |
| r'Function takes exactly 2 positional arguments \(1 given\)'): |
| parse((1,), {'a': 3}, 'OO$O', ['', '', 'a']) |
| parse((1,), {}, 'O|O$O', ['', '', 'a']) |
| with self.assertRaisesRegex(TypeError, |
| r'Function takes at least 1 positional arguments \(0 given\)'): |
| parse((), {}, 'O|O$O', ['', '', 'a']) |
| with self.assertRaisesRegex(SystemError, r'Empty parameter name after \$'): |
| parse((1,), {}, 'O|$OO', ['', '', 'a']) |
| with self.assertRaisesRegex(SystemError, 'Empty keyword'): |
| parse((1,), {}, 'O|OO', ['', 'a', '']) |
| |
| |
| @unittest.skipUnless(threading, 'Threading required for this test.') |
| class TestThreadState(unittest.TestCase): |
| |
| @support.reap_threads |
| def test_thread_state(self): |
| # some extra thread-state tests driven via _testcapi |
| def target(): |
| idents = [] |
| |
| def callback(): |
| idents.append(threading.get_ident()) |
| |
| _testcapi._test_thread_state(callback) |
| a = b = callback |
| time.sleep(1) |
| # Check our main thread is in the list exactly 3 times. |
| self.assertEqual(idents.count(threading.get_ident()), 3, |
| "Couldn't find main thread correctly in the list") |
| |
| target() |
| t = threading.Thread(target=target) |
| t.start() |
| t.join() |
| |
| |
| class Test_testcapi(unittest.TestCase): |
| def test__testcapi(self): |
| for name in dir(_testcapi): |
| if name.startswith('test_'): |
| with self.subTest("internal", name=name): |
| test = getattr(_testcapi, name) |
| test() |
| |
| |
| class PyMemDebugTests(unittest.TestCase): |
| PYTHONMALLOC = 'debug' |
| # '0x04c06e0' or '04C06E0' |
| PTR_REGEX = r'(?:0x)?[0-9a-fA-F]+' |
| |
| def check(self, code): |
| with support.SuppressCrashReport(): |
| out = assert_python_failure('-c', code, |
| PYTHONMALLOC=self.PYTHONMALLOC) |
| stderr = out.err |
| return stderr.decode('ascii', 'replace') |
| |
| def test_buffer_overflow(self): |
| out = self.check('import _testcapi; _testcapi.pymem_buffer_overflow()') |
| regex = (r"Debug memory block at address p={ptr}: API 'm'\n" |
| r" 16 bytes originally requested\n" |
| r" The [0-9] pad bytes at p-[0-9] are FORBIDDENBYTE, as expected.\n" |
| r" The [0-9] pad bytes at tail={ptr} are not all FORBIDDENBYTE \(0x[0-9a-f]{{2}}\):\n" |
| r" at tail\+0: 0x78 \*\*\* OUCH\n" |
| r" at tail\+1: 0xfb\n" |
| r" at tail\+2: 0xfb\n" |
| r" .*\n" |
| r" The block was made by call #[0-9]+ to debug malloc/realloc.\n" |
| r" Data at p: cb cb cb .*\n" |
| r"\n" |
| r"Fatal Python error: bad trailing pad byte") |
| regex = regex.format(ptr=self.PTR_REGEX) |
| regex = re.compile(regex, flags=re.DOTALL) |
| self.assertRegex(out, regex) |
| |
| def test_api_misuse(self): |
| out = self.check('import _testcapi; _testcapi.pymem_api_misuse()') |
| regex = (r"Debug memory block at address p={ptr}: API 'm'\n" |
| r" 16 bytes originally requested\n" |
| r" The [0-9] pad bytes at p-[0-9] are FORBIDDENBYTE, as expected.\n" |
| r" The [0-9] pad bytes at tail={ptr} are FORBIDDENBYTE, as expected.\n" |
| r" The block was made by call #[0-9]+ to debug malloc/realloc.\n" |
| r" Data at p: cb cb cb .*\n" |
| r"\n" |
| r"Fatal Python error: bad ID: Allocated using API 'm', verified using API 'r'\n") |
| regex = regex.format(ptr=self.PTR_REGEX) |
| self.assertRegex(out, regex) |
| |
| @unittest.skipUnless(threading, 'Test requires a GIL (multithreading)') |
| def check_malloc_without_gil(self, code): |
| out = self.check(code) |
| expected = ('Fatal Python error: Python memory allocator called ' |
| 'without holding the GIL') |
| self.assertIn(expected, out) |
| |
| def test_pymem_malloc_without_gil(self): |
| # Debug hooks must raise an error if PyMem_Malloc() is called |
| # without holding the GIL |
| code = 'import _testcapi; _testcapi.pymem_malloc_without_gil()' |
| self.check_malloc_without_gil(code) |
| |
| def test_pyobject_malloc_without_gil(self): |
| # Debug hooks must raise an error if PyObject_Malloc() is called |
| # without holding the GIL |
| code = 'import _testcapi; _testcapi.pyobject_malloc_without_gil()' |
| self.check_malloc_without_gil(code) |
| |
| |
| class PyMemMallocDebugTests(PyMemDebugTests): |
| PYTHONMALLOC = 'malloc_debug' |
| |
| |
| @unittest.skipUnless(sysconfig.get_config_var('WITH_PYMALLOC') == 1, |
| 'need pymalloc') |
| class PyMemPymallocDebugTests(PyMemDebugTests): |
| PYTHONMALLOC = 'pymalloc_debug' |
| |
| |
| @unittest.skipUnless(Py_DEBUG, 'need Py_DEBUG') |
| class PyMemDefaultTests(PyMemDebugTests): |
| # test default allocator of Python compiled in debug mode |
| PYTHONMALLOC = '' |
| |
| |
| if __name__ == "__main__": |
| unittest.main() |
