Add test for Number

tests/test_number.py

@@ -0,0 +1,37 @@
+import random
+import string
+import pytest
+from ha_mqtt_discoverable import Settings
+from ha_mqtt_discoverable.sensors import Number, NumberInfo
+
+
+@pytest.fixture()
+def number() -> Number:
+    mqtt_settings = Settings.MQTT(host="localhost")
+    number_info = NumberInfo(name="test", min=5.0, max=90.0)
+    settings = Settings(mqtt=mqtt_settings, entity=number_info)
+    # Define empty callback
+    return Number(settings, lambda *_: None)
+
+
+def test_required_config():
+    mqtt_settings = Settings.MQTT(host="localhost")
+    number_info = NumberInfo(name="test")
+    settings = Settings(mqtt=mqtt_settings, entity=number_info)
+    # Define empty callback
+    number = Number(settings, lambda *_: None)
+    assert number is not None
+
+
+def test_set_number(number: Number):
+    number.set_number(42.0)
+
+
+def test_number_too_small(number: Number):
+    with pytest.raises(RuntimeError):
+        number.set_number(4.0)
+
+
+def test_number_too_large(number: Number):
+    with pytest.raises(RuntimeError):
+        number.set_number(91.0)