cleanup global context usage in widgets

tests/Twig/Runtime/ThemeEventExtensionTest.php

@@ -0,0 +1,48 @@
+<?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\Runtime;
+
+use App\Entity\User;
+use App\Event\ThemeEvent;
+use App\Tests\Mocks\Security\CurrentUserFactory;
+use App\Twig\Runtime\ThemeEventExtension;
+use PHPUnit\Framework\TestCase;
+use Symfony\Component\EventDispatcher\EventDispatcherInterface;
+
+/**
+ * @covers \App\Twig\Runtime\ThemeEventExtension
+ */
+class ThemeEventExtensionTest extends TestCase
+{
+    protected function getSut(bool $hasListener = true): ThemeEventExtension
+    {
+        $dispatcher = $this->createMock(EventDispatcherInterface::class);
+        $dispatcher->expects($this->once())->method('hasListeners')->willReturn($hasListener);
+        $dispatcher->expects($hasListener ? $this->once() : $this->never())->method('dispatch');
+
+        $user = (new CurrentUserFactory($this))->create(new User());
+
+        return new ThemeEventExtension($dispatcher, $user);
+    }
+
+    public function testTrigger()
+    {
+        $sut = $this->getSut();
+        $event = $sut->trigger('foo', []);
+        self::assertInstanceOf(ThemeEvent::class, $event);
+    }
+
+    public function testTriggerWithoutListener()
+    {
+        $sut = $this->getSut(false);
+        $event = $sut->trigger('foo', []);
+        self::assertInstanceOf(ThemeEvent::class, $event);
+    }
+}