translate time-tracking in login screen and browser title (#738)

tests/Twig/DatatableExtensionsTest.php

@@ -0,0 +1,46 @@
+<?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\Twig;
+
+use App\Twig\DatatableExtensions;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\HttpFoundation\Request;
+use Symfony\Component\HttpFoundation\RequestStack;
+use Twig\TwigFunction;
+
+/**
+ * @covers \App\Twig\DatatableExtensions
+ */
+class DatatableExtensionsTest extends TestCase
+{
+    protected function getSut(string $locale): DatatableExtensions
+    {
+        $request = new Request();
+        $request->setLocale($locale);
+        $requestStack = new RequestStack();
+        $requestStack->push($request);
+
+        return new DatatableExtensions($requestStack);
+    }
+
+    public function testGetFunctions()
+    {
+        $functions = ['is_visible_column', 'is_datatable_configured'];
+        $sut = $this->getSut('de');
+        $twigFunctions = $sut->getFunctions();
+        $this->assertCount(count($functions), $twigFunctions);
+        $i = 0;
+        /** @var TwigFunction $function */
+        foreach ($twigFunctions as $function) {
+            $this->assertInstanceOf(TwigFunction::class, $function);
+            $this->assertEquals($functions[$i++], $function->getName());
+        }
+    }
+}