save default search options (#2445)

* set default times for daterange objects
* allow to show order and order by fields
* move search to modal
* more options for page size
* save export visibility in cookie

tests/Form/Model/DateRangeTest.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\Form\Model;
+
+use App\Form\Model\DateRange;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \App\Form\Model\DateRange
+ */
+class DateRangeTest extends TestCase
+{
+    public function testDefaultValues()
+    {
+        $sut = new DateRange();
+        self::assertNull($sut->getBegin());
+        self::assertNull($sut->getEnd());
+    }
+
+    public function testSetterAndGetter()
+    {
+        $begin = new \DateTime('now');
+        $end = new \DateTime('2018-11-25 18:45:32');
+
+        $sut = new DateRange();
+
+        self::assertInstanceOf(DateRange::class, $sut->setBegin($begin));
+        self::assertInstanceOf(DateRange::class, $sut->setEnd($end));
+
+        self::assertEquals($begin->format('Y-m-d') . ' 00:00:00', $sut->getBegin()->format('Y-m-d H:i:s'));
+        self::assertEquals('2018-11-25 23:59:59', $sut->getEnd()->format('Y-m-d H:i:s'));
+    }
+}