From 43790a456e8ec4104895869b178165fec65613d7 Mon Sep 17 00:00:00 2001
From: Clément Lafont <johnrazeur@gmail.com>
Date: Fri, 7 Feb 2020 17:05:26 +0100
Subject: Fix substraction by zero bug (#56)

---
 tests/MathTest.php | 7 +++++++
 1 file changed, 7 insertions(+)

(limited to 'tests')

diff --git a/tests/MathTest.php b/tests/MathTest.php
index 3e5a7ff..1ffa5ae 100644
--- a/tests/MathTest.php
+++ b/tests/MathTest.php
@@ -304,4 +304,11 @@ class MathTest extends \PHPUnit\Framework\TestCase
         $this->assertEquals(-4, $calculator->execute('(-4)'));
         $this->assertEquals(1, $calculator->execute('(-4 + 5)'));
     }
+
+    public function testMinusZero()
+    {
+        $calculator = new MathExecutor();
+        $this->assertEquals(1, $calculator->execute('1 - 0'));
+        $this->assertEquals(1, $calculator->execute('1-0'));
+    }
 }
-- 
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