Added unit test for template lib

tests/resources/template.tpl

@@ -0,0 +1 @@
+Hello {{world}}

tests/unit/Template/TemplateTest.php

@@ -0,0 +1,56 @@
+<?php
+
+namespace Appwrite\Tests;
+
+use Template\Template;
+use PHPUnit\Framework\TestCase;
+
+class TemplateTest extends TestCase
+{
+    /**
+     * @var Cron
+     */
+    protected $object = null;
+
+    public function setUp()
+    {
+        $this->object = new Template(__DIR__.'/../../resources/template.tpl');
+        $this->object
+            ->setParam('{{world}}', 'WORLD')
+        ;
+    }
+
+    public function tearDown()
+    {
+    }
+
+    public function testRender()
+    {
+        $this->assertEquals($this->object->render(), 'Hello WORLD');
+    }
+
+    public function testParseURL()
+    {
+        $url = $this->object->parseURL('https://appwrite.io/demo');
+
+        $this->assertEquals($url['scheme'], 'https');
+        $this->assertEquals($url['host'], 'appwrite.io');
+        $this->assertEquals($url['path'], '/demo');
+    }
+
+    public function testUnParseURL()
+    {
+        $url = $this->object->parseURL('https://appwrite.io/demo');
+
+        $url['scheme'] = 'http';
+        $url['host'] = 'example.com';
+        $url['path'] = '/new';
+
+        $this->assertEquals($this->object->unParseURL($url), 'http://example.com/new');
+    }
+
+    public function testMergeQuery()
+    {
+        $this->assertEquals($this->object->mergeQuery('key1=value1&key2=value2', ['key1' => 'value3', 'key4' => 'value4']), 'key1=value3&key2=value2&key4=value4');
+    }
+}