Add BullTron BLE desktop GUI

tests/test_bulltron_gui.py

@@ -0,0 +1,46 @@
+import unittest
+
+from bulltron_gui import DeviceState, decode_response, read_frame, split_frames
+
+
+class BullTronParserTest(unittest.TestCase):
+    def test_read_frame_crc(self):
+        self.assertEqual(read_frame(0, 62).hex().upper(), "D2030000003ED7B9")
+
+    def test_split_and_decode_live_frame(self):
+        words = [0] * 62
+        words[0:4] = [3306, 3312, 3308, 3311]
+        words[40] = 132
+        words[41] = 29925
+        words[42] = 652
+        words[43] = 3312
+        words[44] = 3306
+        words[47] = 2
+        words[48] = 1075
+        words[51] = 3
+        words[53] = 1
+        words[54] = 1
+        words[56] = 6
+        words[61] = 0x0010
+        payload = b"".join(word.to_bytes(2, "big") for word in words)
+        body = bytes([0xD2, 0x03, len(payload)]) + payload
+        from bulltron_gui import crc16_modbus_swapped
+
+        frame = body + crc16_modbus_swapped(body).to_bytes(2, "big")
+        buffer = bytearray(b"\x00" + frame + frame)
+        frames = split_frames(buffer)
+        self.assertEqual(len(frames), 2)
+
+        state = DeviceState()
+        decode_response(frames[0], state)
+        self.assertAlmostEqual(state.telemetry.voltage, 13.2)
+        self.assertAlmostEqual(state.telemetry.current, -7.5)
+        self.assertAlmostEqual(state.telemetry.soc, 65.2)
+        self.assertEqual(state.telemetry.cycle_count, 3)
+        self.assertTrue(state.telemetry.charge_mos)
+        self.assertTrue(state.telemetry.discharge_mos)
+        self.assertEqual(state.telemetry.cell_count, 4)
+
+
+if __name__ == "__main__":
+    unittest.main()