diff --git a/tests/test_utils_logcfg.py b/tests/test_utils_logcfg.py
new file mode 100644
index 000000000..6f830adc2
--- /dev/null
+++ b/tests/test_utils_logcfg.py
@@ -0,0 +1,76 @@
+import logging
+import logzero
+from logzero import logger as log
+import pytest
+import sys
+import os
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+from slic.utils.logcfg import *
+
+# Test : add_log_Level()
+
+# Fixture: Register custom log levels once for the module
+@pytest.fixture(scope="module", autouse=True)
+def setup_custom_levels():
+    # Add custom log levels with names, numeric values, functions, and colors
+    add_log_Level(log, "LONG", logging.INFO + 5, func_name="long", color="cyan")
+    add_log_Level(log, "ENLARGE", logging.INFO + 6, func_name="enlarge", color="green")
+    # Set default log level (will display LONG, ENLARGE and higher)
+    logcfg("LONG")
+
+# ANSI escape codes to verify colors
+ANSI_CYAN = "\x1b[36m"
+ANSI_GREEN = "\x1b[32m"
+ANSI_RESET = "\x1b[0m"
+
+# Parametrized test: custom log levels
+@pytest.mark.parametrize("levelname, logfunc, message, ansi_color", [
+    ("LONG", lambda msg: log.long(msg), "This is a LONG message", ANSI_CYAN),
+    ("ENLARGE", lambda msg: log.enlarge(msg), "Please ENLARGE this!", ANSI_GREEN),
+])
+def test_custom_levels_are_logged(levelname, logfunc, message, ansi_color, capsys):
+    # Call the custom log function
+    logfunc(message)
+    # Capture stderr where logzero outputs messages
+    captured = capsys.readouterr().err
+
+    assert ansi_color in captured, f"Expected color code {ansi_color} not found in log output"
+    assert message in captured, "Expected log message not found in output"
+    assert captured.strip().endswith(ANSI_RESET), "Missing ANSI reset code at end of log line"
+
+# Test : setup_import_logging()
+
+def test_import_logging_multiple_modules(capfd):
+    # Setup custom TRACE log level with color
+    add_log_Level(log, "TRACE", logging.DEBUG - 1, color="magenta")
+
+    # Initialize both logzero and logging configurations to use TRACE level
+    logcfg("TRACE")
+
+    # Fuction to test
+    setup_import_logging()
+
+    # Perform various imports
+    import json
+    import math
+    import io        
+    import json      # Duplicate
+    import math      # Duplicate
+    import random
+    import random    # Duplicate
+
+    # Capture the printed output
+    out, err = capfd.readouterr()
+
+    # Check that each unique module import appears once in the logs
+    expected_imports = {"json", "math", "io", "random"}
+    for mod in expected_imports:
+        assert f"importing: {mod}" in out
+
+    # Ensure duplicates are only logged once
+    assert out.count("importing: json") == 1
+    assert out.count("importing: math") == 1
+    assert out.count("importing: random") == 1
+
+    # Verify that our custom log level is actually used
+    assert "TRACE" in out.upper()