add get and set fan speed tests (#72)

tests/commands/test_fan_speed.py

@@ -1,6 +1,42 @@
-from deebot_client.commands import FanSpeedLevel
+from typing import Union
+
+import pytest
+
+from deebot_client.commands import FanSpeedLevel, GetFanSpeed, SetFanSpeed
+from deebot_client.events import FanSpeedEvent
+from tests.commands import assert_command_requested
 from tests.helpers import verify_DisplayNameEnum_unique
 
 
 def test_FanSpeedLevel_unique():
     verify_DisplayNameEnum_unique(FanSpeedLevel)
+
+
+def test_GetFanSpeed_requested():
+    data = {
+        "id": "WiQO",
+        "ret": "ok",
+        "resp": {
+            "header": {
+                "pri": 1,
+                "tzm": 480,
+                "ts": "1305336289055",
+                "ver": "0.0.1",
+                "fwVer": "1.8.2",
+                "hwVer": "0.1.1",
+            },
+            "body": {"code": 0, "msg": "ok", "data": {"speed": 2}},
+        },
+    }
+
+    assert_command_requested(GetFanSpeed(), data, FanSpeedEvent("max+"))
+
+
+@pytest.mark.parametrize(
+    "value, expected", [("quiet", 1000), ("max+", 2), (0, 0), (FanSpeedLevel.MAX, 1)]
+)
+def test_SetFanSpeed(value: Union[str, int, FanSpeedLevel], expected: int):
+
+    command = SetFanSpeed(value)
+    assert command.name == "setSpeed"
+    assert command.args == {"speed": expected}