let junie create initial structure

tests/test_temperature_sensor.py

@@ -0,0 +1,68 @@
+"""
+Tests for the temperature sensor module.
+"""
+import pytest
+from src.esp_sensors.temperature import TemperatureSensor
+
+
+def test_temperature_sensor_initialization():
+    """Test that a temperature sensor can be initialized with valid parameters."""
+    sensor = TemperatureSensor("test_sensor", 5, 30, "C")
+    assert sensor.name == "test_sensor"
+    assert sensor.pin == 5
+    assert sensor.interval == 30
+    assert sensor.unit == "C"
+
+
+def test_temperature_sensor_invalid_unit():
+    """Test that initializing with an invalid unit raises a ValueError."""
+    with pytest.raises(ValueError):
+        TemperatureSensor("test_sensor", 5, 30, "K")
+
+
+def test_temperature_sensor_read():
+    """Test that reading from the sensor returns a float value."""
+    sensor = TemperatureSensor("test_sensor", 5)
+    reading = sensor.read()
+    assert isinstance(reading, float)
+    # For Celsius, the reading should be between 15.0 and 30.0
+    assert 15.0 <= reading <= 30.0
+
+
+def test_temperature_sensor_fahrenheit():
+    """Test that a sensor initialized with Fahrenheit returns appropriate values."""
+    sensor = TemperatureSensor("test_sensor", 5, unit="F")
+    reading = sensor.read()
+    assert isinstance(reading, float)
+    # For Fahrenheit, the reading should be between 59.0 and 86.0
+    assert 59.0 <= reading <= 86.0
+
+
+def test_temperature_conversion():
+    """Test temperature conversion methods."""
+    # Test Celsius to Fahrenheit
+    c_sensor = TemperatureSensor("celsius_sensor", 5, unit="C")
+    c_sensor._last_reading = 20.0  # Manually set for testing
+    f_value = c_sensor.to_fahrenheit()
+    assert f_value == 68.0  # 20°C = 68°F
+
+    # Test Fahrenheit to Celsius
+    f_sensor = TemperatureSensor("fahrenheit_sensor", 5, unit="F")
+    f_sensor._last_reading = 68.0  # Manually set for testing
+    c_value = f_sensor.to_celsius()
+    assert c_value == 20.0  # 68°F = 20°C
+
+
+def test_metadata():
+    """Test that metadata includes the temperature unit."""
+    sensor = TemperatureSensor("test_sensor", 5, unit="C")
+    metadata = sensor.get_metadata()
+    assert metadata["name"] == "test_sensor"
+    assert metadata["pin"] == 5
+    assert metadata["unit"] == "C"
+    assert metadata["last_reading"] is None  # No reading yet
+
+    # After a reading
+    sensor.read()
+    metadata = sensor.get_metadata()
+    assert metadata["last_reading"] is not None