diff --git a/Retos/Reto #26 - TESTING [Media]/python/ingjavierpinilla.py b/Retos/Reto #26 - TESTING [Media]/python/ingjavierpinilla.py
new file mode 100644
index 0000000000..e573d6ae4a
--- /dev/null
+++ b/Retos/Reto #26 - TESTING [Media]/python/ingjavierpinilla.py	
@@ -0,0 +1,56 @@
+import unittest
+from datetime import datetime
+
+
+def has_friday_13(year: int, month: int) -> bool:
+    """Esta funcion retorna verdadero si para un año y mes dado existe un viernes 13
+
+    Args:
+        year (int):
+        month (int):
+
+    Returns:
+        bool:
+    """
+    if not isinstance(year, int):
+        raise TypeError("Year invalid, enter a valid integer number")
+    if not isinstance(month, int):
+        raise TypeError("Month invalid, enter a valid integer number")
+
+    return datetime(year, month, 13).weekday() == 4
+
+
+class TestIsFriday13(unittest.TestCase):
+    def setUp(self):
+        self.is_friday_13 = {"year": 2023, "month": 10}
+        self.not_friday_13 = {"year": 2023, "month": 7}
+
+    def test_invalid_year(self):
+        with self.assertRaises(TypeError):
+            has_friday_13(year="1520", month=7)
+
+    def test_invalid_month(self):
+        with self.assertRaises(TypeError):
+            has_friday_13(year=1520, month=(1520, 1))
+
+    def test_expected_return(self):
+        self.assertIsInstance(has_friday_13(year=1520, month=7), bool)
+
+    def test_valid_friday_13(self):
+        self.assertIs(
+            has_friday_13(
+                year=self.is_friday_13["year"], month=self.is_friday_13["month"]
+            ),
+            True,
+        )
+
+    def test_invalid_friday_13(self):
+        self.assertIsNot(
+            has_friday_13(
+                year=self.not_friday_13["year"], month=self.not_friday_13["month"]
+            ),
+            True,
+        )
+
+if __name__ == "__main__":
+    unittest.main()