From 2e94abd6d3f7588a43a8717be83adb3ae42e7306 Mon Sep 17 00:00:00 2001
From: s45158 <lspychaj@wp.pl>
Date: Mon, 27 Nov 2017 07:18:35 +0100
Subject: [PATCH] done

---
 labs02/task04.py | 23 ++++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/labs02/task04.py b/labs02/task04.py
index 37413f1..299b143 100644
--- a/labs02/task04.py
+++ b/labs02/task04.py
@@ -7,7 +7,28 @@ Jeśli podany argument jest mniejszy od 1 powinna być zwracana wartość 0.
 """
 
 def sum_from_one_to_n(n):
-    pass
+    suma=0
+    if n > 0:
+      for i in range(1,n+1):
+           suma += i
+    return suma
+
+
+
+
+def sum_from_one_to_n(n):
+    def test_special_cases(self):
+        """Testy przypadków szczególnych."""
+        self.assertEqual(sum_from_one_to_n(-100), 0)
+        self.assertEqual(sum_from_one_to_n(-1), 0)
+        self.assertEqual(sum_from_one_to_n(0), 0)
+        self.assertEqual(sum_from_one_to_n(1), 1)
+        self.assertEqual(sum_from_one_to_n(2), 5)
+
+    def test_regular(self):
+        """Testy dla kilku liczb"""
+        self.assertEqual(sum_from_one_to_n(3), 14)
+        self.assertEqual(sum_from_one_to_n(4), 385)
 
 
 def tests(f):