Creating test to Language\Token

tests/Language/TokenTest.php

@@ -0,0 +1,20 @@
+<?php
+namespace GraphQL\Tests;
+
+use GraphQL\Language\Token;
+
+class TokenTest extends \PHPUnit_Framework_TestCase
+{
+    public function testReturnTokenOnArray()
+    {
+        $token = new Token('Kind', 1, 10, 3, 5);
+        $expected = [
+            'kind' => 'Kind',
+            'value' => null,
+            'line' => 3,
+            'column' => 5
+        ];
+
+        $this->assertEquals($expected, $token->toArray());
+    }
+}