diff --git a/tests/cryptography/test_shor_algorithm.py b/tests/cryptography/test_shor_algorithm.py
new file mode 100644
index 000000000000..f23a7992f146
--- /dev/null
+++ b/tests/cryptography/test_shor_algorithm.py
@@ -0,0 +1,12 @@
+import pytest
+from algorithms.cryptography.shor_algorithm import shor_algorithm
+
+@pytest.mark.parametrize("N, expected_factors", [
+    (15, (3, 5)),
+    (21, (3, 7)),
+    (35, (5, 7)),
+    (55, (5, 11)),
+])
+def test_shor_algorithm(N, expected_factors):
+    factors = shor_algorithm(N)
+    assert sorted(factors) == sorted(expected_factors), f"Failed for N={N}"