added installation command (#838)

tests/Utils/FileTest.php

@@ -0,0 +1,36 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Tests\Utils;
+
+use App\Utils\File;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \App\Utils\File
+ */
+class FileTest extends TestCase
+{
+    /**
+     * @expectedException \Symfony\Component\Filesystem\Exception\FileNotFoundException
+     * @expectedExceptionMessage Unknown file "/kjhgkjhg/jkhgkjhg"
+     */
+    public function testGetPermissionsOnNonExistingFile()
+    {
+        $sut = new File();
+        $sut->getPermissions('/kjhgkjhg/jkhgkjhg');
+    }
+
+    public function testGetPermissionsOnDisallowedDirectory()
+    {
+        $sut = new File();
+        $perms = $sut->getPermissions(__FILE__);
+        $this->assertEquals($perms, fileperms(__FILE__));
+    }
+}