diff --git a/tests/test_utils_ask_yes_no.py b/tests/test_utils_ask_yes_no.py
new file mode 100644
index 00000000..a549be10
--- /dev/null
+++ b/tests/test_utils_ask_yes_no.py
@@ -0,0 +1,62 @@
+import pytest
+import sys
+import os
+sys.path.insert(0, os.path.abspath(os.path.join(os.path.dirname(__file__), '..')))
+from slic.utils.ask_yes_no import *
+from unittest.mock import patch
+
+import pytest
+from unittest.mock import patch
+
+@pytest.mark.parametrize(
+    "default, user_input, expected_output, expected_prompt",
+    [
+        (None, 'y', True, "Question? [y/n] "),
+        (None, 'yes', True, "Question? [y/n] "),
+        (None, 'n', False, "Question? [y/n] "),
+        (None, 'no', False, "Question? [y/n] "),
+        (None, ['maybe', 'y'], True, "Question? [y/n] "),
+        (None, ['', 'no'], False, "Question? [y/n] "),
+        (None, ['invalid', 'yes'], True, "Question? [y/n] "),
+        ('y', 'y', True, "Question? [Y/n] "),
+        ('y', 'n', False, "Question? [Y/n] "),
+        ('y', '', True, "Question? [Y/n] "),
+        ('n', 'y', True, "Question? [y/N] "),
+        ('n', 'n', False, "Question? [y/N] "),
+        ('n', '', False, "Question? [y/N] "),
+    ]
+)
+def test_ask_yes_no_with_defaults(default, user_input, expected_output, expected_prompt):
+    patch_target = 'slic.utils.ask_yes_no.read_input'
+
+    if isinstance(user_input, list):
+        input_patch = patch(patch_target, side_effect=user_input)
+    else:
+        input_patch = patch(patch_target, return_value=user_input)
+
+    with input_patch as mock_input:
+        result = ask_yes_no("Question", default=default)
+        assert result == expected_output
+
+        first_prompt = mock_input.call_args_list[0][0][0]
+        assert first_prompt == expected_prompt
+
+
+def test_ask_yes_no_ctrl_c():
+    with patch('slic.utils.ask_yes_no.read_input', side_effect=KeyboardInterrupt):
+        result = ask_yes_no("Question?", default=None, ctrl_c="n")
+        assert result is False
+
+@pytest.mark.parametrize(
+    "ctrl_d, expected_result",
+    [
+        ('n', False),   
+        ('y', True),    
+    ]
+)
+def test_ask_yes_no_ctrl_d(ctrl_d, expected_result):
+    with patch('slic.utils.ask_yes_no.read_input', side_effect=EOFError):  
+        result = ask_yes_no("Question?", default="y", ctrl_d=ctrl_d)
+        assert result == expected_result
+
+