diff --git a/gestform.py b/gestform.py
new file mode 100644
index 0000000..7eff1df
--- /dev/null
+++ b/gestform.py
@@ -0,0 +1,12 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+
+from typing import List
+
+
+MIN = -1000
+MAX = 1000
+
+
+def generate_numbers_list(mini: int, maxi: int) -> List[int]:
+    return list(range(mini, maxi+1))
diff --git a/tests/__init__.py b/tests/__init__.py
new file mode 100644
index 0000000..20055ad
--- /dev/null
+++ b/tests/__init__.py
@@ -0,0 +1 @@
+from .tests_gestform import *
diff --git a/tests/tests_gestform.py b/tests/tests_gestform.py
new file mode 100644
index 0000000..d69b816
--- /dev/null
+++ b/tests/tests_gestform.py
@@ -0,0 +1,13 @@
+from unittest import TestCase
+
+from gestform import generate_numbers_list, MIN, MAX
+
+
+class RandomListNumber(TestCase):
+    def test_generate_numbers_list(self):
+        generated: list = generate_numbers_list(mini=MIN, maxi=MAX)
+        self.assertEqual(min(generated), MIN)
+        self.assertEqual(max(generated), MAX)
+        self.assertIn(0, generated)
+        self.assertNotIn(MIN-1, generated)
+        self.assertNotIn(MAX+1, generated)