added event to manage javascript translations (#2104)

tests/Event/ThemeJavascriptTranslationsEventTest.php

@@ -0,0 +1,40 @@
+<?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\Event;
+
+use App\Event\ThemeJavascriptTranslationsEvent;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \App\Event\ThemeJavascriptTranslationsEvent
+ */
+class ThemeJavascriptTranslationsEventTest extends TestCase
+{
+    public function testDefaultValues()
+    {
+        $sut = new ThemeJavascriptTranslationsEvent();
+
+        $this->assertCount(23, $sut->getTranslations());
+    }
+
+    public function testGetterAndSetter()
+    {
+        $sut = new ThemeJavascriptTranslationsEvent();
+        $sut->setTranslation('foo', 'bar');
+        $sut->setTranslation('hello', 'world', 'testing');
+
+        $result = $sut->getTranslations();
+        self::assertCount(25, $result);
+        self::assertArrayHasKey('foo', $result);
+        self::assertEquals(['bar', 'messages'], $result['foo']);
+        self::assertArrayHasKey('hello', $result);
+        self::assertEquals(['world', 'testing'], $result['hello']);
+    }
+}