Merge pull request #2026 from DeusData/fix/windows-guard-daemon-isolation

test(windows): isolate the daemon guards' rendezvous and stop hiding their failures

Author: DeusData

tests/windows/test_cli_non_ascii_arg.py

@@ -73,6 +73,7 @@ def main():
         # (#1952). One retry against a fresh cache separates that from a real
         # CLI indexing failure.
         ctrl_out = ""
+        ctrl_err = ""
         for attempt in ("cache_ascii", "cache_ascii_retry"):
             env = dict(os.environ)
             env["CBM_CACHE_DIR"] = os.path.join(work, attempt)
@@ -81,14 +82,19 @@ def main():
                  json.dumps({"repo_path": ascii_repo})],
                 capture_output=True, timeout=120, env=env)
             ctrl_out = (ctrl.stdout or b"").decode("utf-8", "replace")
+            ctrl_err = (ctrl.stderr or b"").decode("utf-8", "replace")
             if '"nodes"' in ctrl_out:
                 break
-            print("SETUP: ASCII control attempt %r did not index via CLI:\n%s"
-                  % (attempt, ctrl_out[:300]))
+            # Full stdout AND stderr: the reason lives on stderr (daemon
+            # spawn/handshake diagnostics), and a head slice of stdout only
+            # ever showed the allocator preamble.
+            print("SETUP: ASCII control attempt %r did not index via CLI (rc=%s):\n"
+                  "stdout:\n%s\nstderr:\n%s"
+                  % (attempt, ctrl.returncode, ctrl_out, ctrl_err))
             time.sleep(2)
         if '"nodes"' not in ctrl_out:
-            print("SETUP FAIL: ASCII control did not index via CLI:\n%s" %
-                  ctrl_out[:300])
+            print("SETUP FAIL: ASCII control did not index via CLI:\nstdout:\n%s\nstderr:\n%s"
+                  % (ctrl_out, ctrl_err))
             return 2
 
         env2 = dict(os.environ)