fix st

tests/test_sweep_reader.py

@@ -178,6 +178,41 @@ class SweepReaderTests(unittest.TestCase):
             reader.join(timeout=1.0)
             stack.close()
 
+    def test_parser_16_bit_x2_probe_inconclusive_logs_hint(self):
+        payload = b"\x00" * (_PARSER_16_BIT_X2_PROBE_BYTES + 128)
+
+        stack, reader, queue, stop_event, stderr = self._start_reader(payload, parser_16_bit_x2=True)
+        try:
+            deadline = time.time() + 1.5
+            logs = ""
+            while time.time() < deadline:
+                logs = stderr.getvalue()
+                if "probe inconclusive" in logs:
+                    break
+                time.sleep(0.02)
+            self.assertTrue(queue.empty())
+            self.assertIn("probe inconclusive", logs)
+            self.assertIn("try --bin", logs)
+        finally:
+            stop_event.set()
+            reader.join(timeout=1.0)
+            stack.close()
+
+    def test_reader_logs_no_input_warning_when_source_is_idle(self):
+        with patch.object(sweep_reader_module, "_NO_INPUT_WARN_INTERVAL_S", 0.02), patch.object(
+            sweep_reader_module, "_NO_PACKET_WARN_INTERVAL_S", 0.02
+        ):
+            stack, reader, _queue, stop_event, stderr = self._start_reader(b"", parser_16_bit_x2=False)
+            try:
+                time.sleep(0.12)
+                logs = stderr.getvalue()
+                self.assertIn("no input bytes", logs)
+                self.assertIn("no sweep packets", logs)
+            finally:
+                stop_event.set()
+                reader.join(timeout=1.0)
+                stack.close()
+
     def test_reader_join_does_not_raise_when_stopped(self):
         stack, reader, _queue, stop_event, _stderr = self._start_reader(b"", parser_16_bit_x2=True)
         try: