From bfa2a74998ba4dc1eec3b22039224d47e166fbba Mon Sep 17 00:00:00 2001
From: Dietrich <Dietrich-A.Rink@gmx.de>
Date: Thu, 4 Nov 2021 21:23:19 +0100
Subject: [PATCH] Fix faulty circle_area function

---
 drone_test/__init__.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drone_test/__init__.py b/drone_test/__init__.py
index 936bd02..a35fa4e 100644
--- a/drone_test/__init__.py
+++ b/drone_test/__init__.py
@@ -9,4 +9,7 @@ def circle_area(radius: float):
     :raises ValueError: radius is negative
     :return: area of the circle
     """
+    if radius < 0:
+        raise ValueError("Circle can't have negative radius")
+
     return math.pi * radius ** 2