diff --git a/switchbot/devices/bot.py b/switchbot/devices/bot.py
index 0099a6db..9736ced7 100644
--- a/switchbot/devices/bot.py
+++ b/switchbot/devices/bot.py
@@ -37,7 +37,8 @@ async def turn_on(self) -> bool:
         """Turn device on."""
         result = await self._send_command(ON_KEY)
         ret = self._check_command_result(result, 0, {1, 5})
-        self._override_state({"isOn": True})
+        if ret:
+            self._override_state({"isOn": True})
         _LOGGER.debug(
             "%s: Turn on result: %s -> %s",
             self.name,
@@ -52,7 +53,8 @@ async def turn_off(self) -> bool:
         """Turn device off."""
         result = await self._send_command(OFF_KEY)
         ret = self._check_command_result(result, 0, {1, 5})
-        self._override_state({"isOn": False})
+        if ret:
+            self._override_state({"isOn": False})
         _LOGGER.debug(
             "%s: Turn off result: %s -> %s",
             self.name,
diff --git a/tests/test_bot.py b/tests/test_bot.py
new file mode 100644
index 00000000..0a59ecd2
--- /dev/null
+++ b/tests/test_bot.py
@@ -0,0 +1,110 @@
+from unittest.mock import AsyncMock, MagicMock
+
+import pytest
+from bleak.backends.device import BLEDevice
+
+from switchbot import SwitchBotAdvertisement, SwitchbotModel
+from switchbot.devices import bot
+
+from .test_adv_parser import generate_ble_device
+
+
+def create_bot_for_command_testing(init_data: dict | None = None) -> bot.Switchbot:
+    ble_device = generate_ble_device("aa:bb:cc:dd:ee:ff", "any")
+    device = bot.Switchbot(ble_device, model=SwitchbotModel.BOT)
+    device.update_from_advertisement(make_advertisement_data(ble_device, init_data))
+    device._send_command = AsyncMock()
+    device._check_command_result = MagicMock(return_value=True)
+    device.update = AsyncMock()
+    return device
+
+
+def make_advertisement_data(
+    ble_device: BLEDevice, init_data: dict | None = None
+) -> SwitchBotAdvertisement:
+    if init_data is None:
+        init_data = {}
+    return SwitchBotAdvertisement(
+        address="aa:bb:cc:dd:ee:ff",
+        data={
+            "rawAdvData": b"H\x10\xe1",
+            "data": {"switchMode": False, "isOn": False, "battery": 97} | init_data,
+            "model": "H",
+            "isEncrypted": False,
+            "modelFriendlyName": "Bot",
+            "modelName": SwitchbotModel.BOT,
+        },
+        device=ble_device,
+        rssi=-65,
+        active=True,
+    )
+
+
+@pytest.mark.asyncio
+async def test_turn_on_accepted_overrides_state() -> None:
+    """Accepted command (e.g. 0x01 0x48 0x90) must update cached state to on."""
+    device = create_bot_for_command_testing({"isOn": False})
+
+    assert await device.turn_on() is True
+
+    device._send_command.assert_called_with(bot.ON_KEY)
+    assert device.is_on() is True
+
+
+@pytest.mark.asyncio
+async def test_turn_off_accepted_overrides_state() -> None:
+    """Accepted command must update cached state to off."""
+    device = create_bot_for_command_testing({"isOn": True})
+
+    assert await device.turn_off() is True
+
+    device._send_command.assert_called_with(bot.OFF_KEY)
+    assert device.is_on() is False
+
+
+@pytest.mark.asyncio
+async def test_turn_on_rejected_preserves_state() -> None:
+    """
+    Rejected command (e.g. 0x03 0xff 0x00) must NOT override the cached state.
+
+    Regression for sblibs/pySwitchbot#213: back-to-back presses where the bot
+    silently ignores the second one would still flip HA's state to ``on``
+    because ``_override_state`` ran unconditionally.
+    """
+    device = create_bot_for_command_testing({"isOn": False})
+    device._check_command_result = MagicMock(return_value=False)
+
+    assert await device.turn_on() is False
+
+    device._send_command.assert_called_with(bot.ON_KEY)
+    assert device.is_on() is False
+
+
+@pytest.mark.asyncio
+async def test_turn_off_rejected_preserves_state() -> None:
+    """Rejected command must NOT override the cached state to off."""
+    device = create_bot_for_command_testing({"isOn": True})
+    device._check_command_result = MagicMock(return_value=False)
+
+    assert await device.turn_off() is False
+
+    device._send_command.assert_called_with(bot.OFF_KEY)
+    assert device.is_on() is True
+
+
+@pytest.mark.asyncio
+async def test_inverse_mode_is_on_reflects_override() -> None:
+    """is_on() must respect inverse_mode after a successful turn_on."""
+    ble_device = generate_ble_device("aa:bb:cc:dd:ee:ff", "any")
+    device = bot.Switchbot(ble_device, model=SwitchbotModel.BOT, inverse_mode=True)
+    device.update_from_advertisement(
+        make_advertisement_data(ble_device, {"isOn": True})
+    )
+    device._send_command = AsyncMock()
+    device._check_command_result = MagicMock(return_value=True)
+    device.update = AsyncMock()
+
+    await device.turn_on()
+
+    # inverse_mode flips the user-facing reading
+    assert device.is_on() is False