feat(tests): add comprehensive test suite for backend functionality, including database, configuration, and telemetry utilities

tests/backend/test_colour_utils.py

@@ -0,0 +1,20 @@
+import pytest
+from meshchatx.src.backend.colour_utils import ColourUtils
+
+
+def test_hex_colour_to_byte_array():
+    # Test with # prefix
+    hex_val = "#FF00AA"
+    expected = bytes.fromhex("FF00AA")
+    assert ColourUtils.hex_colour_to_byte_array(hex_val) == expected
+
+    # Test without # prefix
+    hex_val = "00BBFF"
+    expected = bytes.fromhex("00BBFF")
+    assert ColourUtils.hex_colour_to_byte_array(hex_val) == expected
+
+
+def test_hex_colour_to_byte_array_invalid():
+    # Test with invalid hex
+    with pytest.raises(ValueError):
+        ColourUtils.hex_colour_to_byte_array("#GG00AA")