added API for handling work contract times (#4016)

tests/WorkingTime/Model/YearSummaryTest.php

@@ -0,0 +1,45 @@
+<?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\WorkingTime\Model;
+
+use App\WorkingTime\Model\YearSummary;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @covers \App\WorkingTime\Model\YearSummary
+ */
+class YearSummaryTest extends TestCase
+{
+    public function testDefaults(): void
+    {
+        $monthDate = new \DateTimeImmutable();
+        $sut = new YearSummary($monthDate, 'Foo-Bar');
+        self::assertEquals('Foo-Bar', $sut->getTitle());
+        self::assertEquals(0, $sut->getExpectedTime());
+        self::assertEquals(0, $sut->getActualTime());
+    }
+
+    public function testWithSummary(): void
+    {
+        $monthDate = new \DateTimeImmutable('2020-01-01');
+        $sut = new YearSummary($monthDate, 'Foo-Bar');
+
+        $monthSummary = $sut->getMonth(new \DateTimeImmutable('2020-04-27'));
+        $monthSummary->setActualTime(35679);
+        $monthSummary->setExpectedTime(135679);
+
+        $monthSummary = $sut->getMonth(new \DateTimeImmutable('2020-07-27'));
+        $monthSummary->setActualTime(95679);
+        $monthSummary->setExpectedTime(235679);
+
+        self::assertEquals(131358, $sut->getActualTime());
+        self::assertEquals(371358, $sut->getExpectedTime());
+    }
+}