@@ -469,12 +469,6 @@ def test_breakpoints(self):
469469
470470def test_keyboard_interrupt (self ):
471471"""Test that sending keyboard interrupt breaks into pdb."""
472- synchronizer_sock = socket .socket (socket .AF_INET ,socket .SOCK_STREAM )
473- synchronizer_sock .bind (('127.0.0.1' ,0 ))# Let OS assign port
474- synchronizer_sock .settimeout (SHORT_TIMEOUT )
475- synchronizer_sock .listen (1 )
476- self .addCleanup (synchronizer_sock .close )
477- sync_port = synchronizer_sock .getsockname ()[1 ]
478472
479473script = textwrap .dedent (f"""
480474 import time
@@ -491,11 +485,10 @@ def bar():
491485 version=pdb._PdbServer.protocol_version(),
492486 )
493487 print("Connected to debugger")
494- iterations = 10
495- socket.create_connection(('127.0.0.1',{ sync_port }
488+ iterations = 50
496489 while iterations > 0:
497- print("Iteration", iterations)
498- time.sleep(1 )
490+ print("Iteration", iterations, flush=True )
491+ time.sleep(0.2 )
499492 iterations -= 1
500493 return 42
501494
@@ -512,22 +505,20 @@ def bar():
512505# Continue execution
513506self ._send_command (client_file ,"c" )
514507
515- # Wait until execution has continued
516- synchronizer_sock .accept ()[0 ].close ()
517-
518- # Wait a bit so the remote leaves create_connection(). This is not
519- # required but makes the rest of the test faster as we will exit the main
520- # loop immediately by setting iterations to 0.
521- time .sleep (0.1 )
508+ # Confirm that the remote is already in the while loop. We know
509+ # it's in bar() and we can exit the loop immediately by setting
510+ # iterations to 0.
511+ while line := process .stdout .readline ():
512+ if line .startswith ("Iteration" ):
513+ break
522514
523515# Inject a script to interrupt the running process
524516self ._send_interrupt (process .pid )
525517messages = self ._read_until_prompt (client_file )
526518
527- # Verify we got the keyboard interrupt message. Is possible that we get interrupted somewhere
528- # in bar() or when leving create_connection()
519+ # Verify we got the keyboard interrupt message.
529520interrupt_msgs = [msg ['message' ]for msg in messages if 'message' in msg ]
530- expected_msg = [msg for msg in interrupt_msgs if "bar()" in msg or "create_connection()" in msg ]
521+ expected_msg = [msg for msg in interrupt_msgs if "bar()" in msg ]
531522self .assertGreater (len (expected_msg ),0 )
532523
533524# Continue to end as fast as we can