Added tests for the Arr::get() method

tests/Arr/GetTest.php

@@ -0,0 +1,33 @@
+<?php
+
+namespace Yetii\Tests\Arr;
+
+use PHPUnit\Framework\TestCase;
+use YeTii\General\Arr;
+
+/**
+ * Class GetTest
+ */
+class GetTest extends TestCase
+{
+    /**
+     * @var array
+     */
+    public $testData = [
+        'bananas' => [
+            'oranges' => [
+                'apples' => 'pears'
+            ]
+        ]
+    ];
+
+    /**
+     * Test whether it returns the value for the specified key
+     */
+    public function testCanGetValueAtSpecifiedKey()
+    {
+        $array = new Arr($this->testData);
+        $this->assertArrayHasKey('apples', $array->get('bananas.oranges'));
+        $this->assertTrue($array->get('bananas.oranges.apples') === 'pears');
+    }
+}