Benchmark changes

Signed-off-by: Merwane Hamadi <merwanehamadi@gmail.com>

benchmark/agbenchmark/challenges/deprecated/code/4_tests/custom_python/test.py

@@ -0,0 +1,29 @@
+from sample_code import multiply_int
+
+
+def test_multiply_int(num: int, multiplier, expected_result: int) -> None:
+    result = multiply_int(num, multiplier)
+    print(result)
+    assert (
+        result == expected_result
+    ), f"AssertionError: Expected the output to be {expected_result}"
+
+
+if __name__ == "__main__":
+    # test the trivial case
+    num = 4
+    multiplier = 2
+    expected_result = 8
+    test_multiply_int(num, multiplier, expected_result)
+
+    # so its not hard coded
+    num = 7
+    multiplier = 7
+    expected_result = 49
+    test_multiply_int(num, multiplier, expected_result)
+
+    # negative numbers
+    num = -6
+    multiplier = 2
+    expected_result = -12
+    test_multiply_int(num, multiplier, expected_result)