From b5e4cbe66e8b4e50353f2fe5a98c97ad2d2098ce Mon Sep 17 00:00:00 2001
From: Arkadiusz Kondas <arkadiusz.kondas@gmail.com>
Date: Wed, 27 Apr 2016 23:57:23 +0200
Subject: [PATCH] add Mean::arithmetic tests

---
 tests/Phpml/Math/Statistic/MeanTest.php | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)
 create mode 100644 tests/Phpml/Math/Statistic/MeanTest.php

diff --git a/tests/Phpml/Math/Statistic/MeanTest.php b/tests/Phpml/Math/Statistic/MeanTest.php
new file mode 100644
index 0000000..2e57ade
--- /dev/null
+++ b/tests/Phpml/Math/Statistic/MeanTest.php
@@ -0,0 +1,17 @@
+<?php
+
+declare (strict_types = 1);
+
+namespace test\Phpml\Math\StandardDeviation;
+
+use Phpml\Math\Statistic\Mean;
+
+class MeanTest extends \PHPUnit_Framework_TestCase
+{
+    public function testArithmeticMean()
+    {
+        $delta = 0.01;
+        $this->assertEquals(3.5, Mean::arithmetic([2, 5]), '', $delta);
+        $this->assertEquals(41.16, Mean::arithmetic([43, 21, 25, 42, 57, 59]), '', $delta);
+    }
+}