fix: handle float and string values for BTMiner V3 fan speed

pyasic/miners/backends/btminer.py

@@ -1131,6 +1131,16 @@ async def _get_psu_fans(self, rpc_get_device_info: dict | None = None) -> list[F
         if rpc_get_device_info is None:
             return []
         rpm = rpc_get_device_info.get("msg", {}).get("power", {}).get("fanspeed")
+        if rpm is None:
+            return []
+
+        # Ensure rpm is an integer, as some models may return it as a string or float
+        if not isinstance(rpm, int):
+            try:
+                rpm = int(round(float(rpm)))
+            except (TypeError, ValueError):
+                return []
+
         return [Fan(speed=rpm)] if rpm is not None else []
 
     async def _get_serial_number(

tests/miners_tests/backends_tests/__init__.py

@@ -1,3 +1,4 @@
 from .avalonminer_tests import *
+from .btminer_tests import *
 from .elphapex_tests import *
 from .hammer_tests import *

tests/miners_tests/backends_tests/btminer_tests/__init__.py

@@ -0,0 +1 @@
+from .test_v3_psu_fans import TestBTMinerV3PSUFans

tests/miners_tests/backends_tests/btminer_tests/test_v3_psu_fans.py

@@ -0,0 +1,46 @@
+"""Tests for BTMiner V3 PSU fan speed parsing."""
+
+import unittest
+
+from pyasic.miners.backends.btminer import BTMinerV3
+
+
+class TestBTMinerV3PSUFans(unittest.IsolatedAsyncioTestCase):
+    async def test_get_psu_fans_keeps_int_value(self):
+        miner = BTMinerV3("127.0.0.1")
+
+        fans = await miner._get_psu_fans(
+            rpc_get_device_info={"msg": {"power": {"fanspeed": 6000}}}
+        )
+
+        self.assertEqual(len(fans), 1)
+        self.assertEqual(fans[0].speed, 6000)
+
+    async def test_get_psu_fans_converts_float_value(self):
+        miner = BTMinerV3("127.0.0.1")
+
+        fans = await miner._get_psu_fans(
+            rpc_get_device_info={"msg": {"power": {"fanspeed": 26.1}}}
+        )
+
+        self.assertEqual(len(fans), 1)
+        self.assertEqual(fans[0].speed, 26)
+
+    async def test_get_psu_fans_converts_string_float_value(self):
+        miner = BTMinerV3("127.0.0.1")
+
+        fans = await miner._get_psu_fans(
+            rpc_get_device_info={"msg": {"power": {"fanspeed": "25.7"}}}
+        )
+
+        self.assertEqual(len(fans), 1)
+        self.assertEqual(fans[0].speed, 26)
+
+    async def test_get_psu_fans_invalid_value_returns_empty(self):
+        miner = BTMinerV3("127.0.0.1")
+
+        fans = await miner._get_psu_fans(
+            rpc_get_device_info={"msg": {"power": {"fanspeed": "n/a"}}}
+        )
+
+        self.assertEqual(fans, [])