split dht sensor, add oled impl, add button triggered display example

tests/test_oled_display.py

@@ -0,0 +1,107 @@
+"""
+Tests for the OLED display module.
+"""
+import pytest
+from src.esp_sensors.oled_display import OLEDDisplay
+
+
+def test_oled_display_initialization():
+    """Test that an OLED display can be initialized with valid parameters."""
+    display = OLEDDisplay("test_display", scl_pin=22, sda_pin=21)
+    assert display.name == "test_display"
+    assert display.scl_pin == 22
+    assert display.sda_pin == 21
+    assert display.pin == 21  # pin in base class is set to sda_pin
+    assert display.width == 128
+    assert display.height == 64
+    assert display.address == 0x3C
+    assert display.interval == 60
+    assert display._values == []
+
+
+def test_oled_display_custom_parameters():
+    """Test that an OLED display can be initialized with custom parameters."""
+    display = OLEDDisplay(
+        "custom_display", 
+        scl_pin=22, 
+        sda_pin=21, 
+        width=64, 
+        height=32, 
+        address=0x3D, 
+        interval=30
+    )
+    assert display.name == "custom_display"
+    assert display.scl_pin == 22
+    assert display.sda_pin == 21
+    assert display.width == 64
+    assert display.height == 32
+    assert display.address == 0x3D
+    assert display.interval == 30
+
+
+def test_oled_display_read():
+    """Test that reading from the display returns a success value."""
+    display = OLEDDisplay("test_display", scl_pin=22, sda_pin=21)
+    reading = display.read()
+    assert reading == 1.0
+
+
+def test_oled_display_metadata():
+    """Test that metadata includes the display parameters."""
+    display = OLEDDisplay("test_display", scl_pin=22, sda_pin=21)
+    metadata = display.get_metadata()
+    assert metadata["name"] == "test_display"
+    assert metadata["pin"] == 21
+    assert metadata["scl_pin"] == 22
+    assert metadata["sda_pin"] == 21
+    assert metadata["width"] == 128
+    assert metadata["height"] == 64
+    assert metadata["address"] == 0x3C
+    assert metadata["interval"] == 60
+    assert metadata["type"] == "SSD1306"
+    assert metadata["values_count"] == 0
+
+
+def test_oled_display_values():
+    """Test that display values are stored correctly."""
+    display = OLEDDisplay("test_display", scl_pin=22, sda_pin=21)
+    
+    # Test with empty values
+    assert display._values == []
+    
+    # Test with string values
+    test_values = ["Temperature: 25.0°C", "Humidity: 45.0%"]
+    display.display_values(test_values)
+    assert display._values == test_values
+    
+    # Check that metadata reflects the number of values
+    metadata = display.get_metadata()
+    assert metadata["values_count"] == 2
+
+
+def test_oled_display_clear():
+    """Test that clearing the display works in simulation mode."""
+    display = OLEDDisplay("test_display", scl_pin=22, sda_pin=21)
+    
+    # This is mostly a coverage test since we can't check the actual display in tests
+    display.clear()
+    
+    # Verify that clearing doesn't affect stored values
+    test_values = ["Temperature: 25.0°C"]
+    display.display_values(test_values)
+    display.clear()
+    assert display._values == test_values
+
+
+def test_oled_display_text():
+    """Test that displaying text works in simulation mode."""
+    display = OLEDDisplay("test_display", scl_pin=22, sda_pin=21)
+    
+    # This is mostly a coverage test since we can't check the actual display in tests
+    display.display_text("Hello, World!")
+    
+    # Verify that displaying text doesn't affect stored values
+    test_values = ["Temperature: 25.0°C"]
+    display.display_values(test_values)
+    display.display_text("Hello, World!")
+    assert display._values == test_values