Files
homecontrol.esp-sensors/tests/test_temperature_sensor.py
2025-05-07 19:17:19 +02:00

69 lines
2.3 KiB
Python

"""
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