diff --git a/tests/test_codewars/test_rgb_2_hex.py b/tests/test_codewars/test_rgb_2_hex.py
new file mode 100644
index 0000000..080746e
--- /dev/null
+++ b/tests/test_codewars/test_rgb_2_hex.py
@@ -0,0 +1,16 @@
+from src.codewars.kata_rgb_2_hex import rgb
+import pytest
+
+
+@pytest.mark.parametrize(
+    ("r", "g", "b", "expected"),
+    [
+        (0, 0, 0, "000000"),
+        (1, 2, 3, "010203"),
+        (255, 255, 255, "FFFFFF"),
+        (254, 253, 252, "FEFDFC"),
+        (-20, 275, 125, "00FF7D"),
+    ],
+)
+def test_rgb_2_hex(r, g, b, expected):
+    assert rgb(r, g, b) == expected