diff options
Diffstat (limited to 'Lib/test/test_external_inspection.py')
| -rw-r--r-- | Lib/test/test_external_inspection.py | 82 |
1 files changed, 63 insertions, 19 deletions
diff --git a/Lib/test/test_external_inspection.py b/Lib/test/test_external_inspection.py index ad3f669a030..2b4b63a030b 100644 --- a/Lib/test/test_external_inspection.py +++ b/Lib/test/test_external_inspection.py @@ -4,6 +4,7 @@ import textwrap import importlib import sys import socket +import threading from asyncio import staggered, taskgroups from unittest.mock import ANY from test.support import os_helper, SHORT_TIMEOUT, busy_retry @@ -16,9 +17,7 @@ PROCESS_VM_READV_SUPPORTED = False try: from _remote_debugging import PROCESS_VM_READV_SUPPORTED - from _remote_debugging import get_stack_trace - from _remote_debugging import get_async_stack_trace - from _remote_debugging import get_all_awaited_by + from _remote_debugging import RemoteUnwinder except ImportError: raise unittest.SkipTest("Test only runs when _remote_debugging is available") @@ -34,7 +33,23 @@ skip_if_not_supported = unittest.skipIf( ) +def get_stack_trace(pid): + unwinder = RemoteUnwinder(pid, all_threads=True, debug=True) + return unwinder.get_stack_trace() + + +def get_async_stack_trace(pid): + unwinder = RemoteUnwinder(pid, debug=True) + return unwinder.get_async_stack_trace() + + +def get_all_awaited_by(pid): + unwinder = RemoteUnwinder(pid, debug=True) + return unwinder.get_all_awaited_by() + + class TestGetStackTrace(unittest.TestCase): + maxDiff = None @skip_if_not_supported @unittest.skipIf( @@ -46,7 +61,7 @@ class TestGetStackTrace(unittest.TestCase): port = find_unused_port() script = textwrap.dedent( f"""\ - import time, sys, socket + import time, sys, socket, threading # Connect to the test process sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) sock.connect(('localhost', {port})) @@ -55,13 +70,16 @@ class TestGetStackTrace(unittest.TestCase): for x in range(100): if x == 50: baz() + def baz(): foo() def foo(): - sock.sendall(b"ready"); time.sleep(10_000) # same line number + sock.sendall(b"ready:thread\\n"); time.sleep(10_000) # same line number - bar() + t = threading.Thread(target=bar) + t.start() + sock.sendall(b"ready:main\\n"); t.join() # same line number """ ) stack_trace = None @@ -82,8 +100,9 @@ class TestGetStackTrace(unittest.TestCase): p = subprocess.Popen([sys.executable, script_name]) client_socket, _ = server_socket.accept() server_socket.close() - response = client_socket.recv(1024) - self.assertEqual(response, b"ready") + response = b"" + while b"ready:main" not in response or b"ready:thread" not in response: + response += client_socket.recv(1024) stack_trace = get_stack_trace(p.pid) except PermissionError: self.skipTest("Insufficient permissions to read the stack trace") @@ -94,13 +113,23 @@ class TestGetStackTrace(unittest.TestCase): p.terminate() p.wait(timeout=SHORT_TIMEOUT) - expected_stack_trace = [ - ("foo", script_name, 14), - ("baz", script_name, 11), + thread_expected_stack_trace = [ + ("foo", script_name, 15), + ("baz", script_name, 12), ("bar", script_name, 9), - ("<module>", script_name, 16), + ('Thread.run', threading.__file__, ANY) ] - self.assertEqual(stack_trace, expected_stack_trace) + # Is possible that there are more threads, so we check that the + # expected stack traces are in the result (looking at you Windows!) + self.assertIn((ANY, thread_expected_stack_trace), stack_trace) + + # Check that the main thread stack trace is in the result + frame = ("<module>", script_name, 19) + for _, stack in stack_trace: + if frame in stack: + break + else: + self.fail("Main thread stack trace not found in result") @skip_if_not_supported @unittest.skipIf( @@ -700,13 +729,28 @@ class TestGetStackTrace(unittest.TestCase): ) def test_self_trace(self): stack_trace = get_stack_trace(os.getpid()) + # Is possible that there are more threads, so we check that the + # expected stack traces are in the result (looking at you Windows!) + this_tread_stack = None + for thread_id, stack in stack_trace: + if thread_id == threading.get_native_id(): + this_tread_stack = stack + break + self.assertIsNotNone(this_tread_stack) self.assertEqual( - stack_trace[0], - ( - "TestGetStackTrace.test_self_trace", - __file__, - self.test_self_trace.__code__.co_firstlineno + 6, - ), + stack[:2], + [ + ( + "get_stack_trace", + __file__, + get_stack_trace.__code__.co_firstlineno + 2, + ), + ( + "TestGetStackTrace.test_self_trace", + __file__, + self.test_self_trace.__code__.co_firstlineno + 6, + ), + ] ) |