Filter likely BullTron BLE devices

tests/test_bulltron_gui.py

@@ -1,6 +1,6 @@
 import unittest
 
-from bulltron_gui import DeviceState, decode_response, read_frame, split_frames
+from bulltron_gui import DeviceState, bulltron_match_reason, decode_response, read_frame, split_frames
 
 
 class BullTronParserTest(unittest.TestCase):
@@ -41,6 +41,17 @@ class BullTronParserTest(unittest.TestCase):
         self.assertTrue(state.telemetry.discharge_mos)
         self.assertEqual(state.telemetry.cell_count, 4)
 
+    def test_bulltron_scan_filter_matches_apk_markers(self):
+        self.assertEqual(bulltron_match_reason("DL-1234", [], []), "name:DL")
+        self.assertEqual(bulltron_match_reason("B35-1234", [], []), "name:B35")
+        self.assertEqual(
+            bulltron_match_reason("unknown", ["0000fff0-0000-1000-8000-00805f9b34fb"], []),
+            "service:fff0",
+        )
+        payload = bytes.fromhex("00" * 14 + "4A4842" + "00")
+        self.assertEqual(bulltron_match_reason("unknown", [], [payload]), "adv:JHB")
+        self.assertIsNone(bulltron_match_reason("keyboard", [], [b"\x01\x02\x03"]))
+
 
 if __name__ == "__main__":
     unittest.main()