Minor - Add phpunit test

phpunit.xml.dist

@@ -0,0 +1,34 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<!-- https://phpunit.readthedocs.io/en/latest/configuration.html -->
+<phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:noNamespaceSchemaLocation="http://schema.phpunit.de/6.5/phpunit.xsd"
+         backupGlobals="false"
+         colors="true"
+         bootstrap="config/bootstrap.php"
+>
+    <php>
+        <ini name="error_reporting" value="-1" />
+        <server name="APP_ENV" value="test" force="true" />
+        <server name="SHELL_VERBOSITY" value="-1" />
+        <server name="SYMFONY_PHPUNIT_REMOVE" value="" />
+        <server name="SYMFONY_PHPUNIT_VERSION" value="7.5" />
+        <server name="KERNEL_CLASS" value="Chamilo\Kernel" />
+    </php>
+
+    <testsuites>
+        <testsuite name="Project Test Suite">
+            <directory>tests</directory>
+        </testsuite>
+    </testsuites>
+
+    <filter>
+        <whitelist>
+            <directory>src</directory>
+        </whitelist>
+    </filter>
+
+    <listeners>
+        <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener" />
+    </listeners>
+</phpunit>

tests/CoreBundle/Controller/IndexControllerTest.php

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+<?php
+
+/* For licensing terms, see /license.txt */
+
+namespace Chamilo\CoreBundle\Controller;
+
+use Symfony\Bundle\FrameworkBundle\Test\WebTestCase;
+use Symfony\Component\HttpFoundation\Response;
+
+class IndexControllerTest extends WebTestCase
+{
+    public function testIndex()
+    {
+        $client = static::createClient([], []);
+        $client->request('GET', '/');
+        $this->assertSame(Response::HTTP_OK, $client->getResponse()->getStatusCode());
+    }
+}