DX: Add rolling date converter + unit test

src/Bundle/ChillMainBundle/Tests/Services/RollingDate/RollingDateConverterTest.php

@@ -0,0 +1,101 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Services\RollingDate;
+
+use Chill\MainBundle\Service\RollingDate\RollingDate;
+use Chill\MainBundle\Service\RollingDate\RollingDateConverter;
+use DateTime;
+use DateTimeImmutable;
+use PHPUnit\Framework\TestCase;
+
+/**
+ * @internal
+ * @coversNothing
+ */
+final class RollingDateConverterTest extends TestCase
+{
+    private RollingDateConverter $converter;
+
+    protected function setUp(): void
+    {
+        $this->converter = new RollingDateConverter();
+    }
+
+    public function generateDataConversionDate(): iterable
+    {
+        $format = 'Y-m-d His';
+
+        yield [RollingDate::T_MONTH_CURRENT_START, '2022-11-01 000000', $format];
+
+        yield [RollingDate::T_MONTH_NEXT_START, '2022-12-01 000000', $format];
+
+        yield [RollingDate::T_MONTH_PREVIOUS_START, '2022-10-01 000000', $format];
+
+        yield [RollingDate::T_QUARTER_CURRENT_START, '2022-10-01 000000', $format];
+
+        yield [RollingDate::T_QUARTER_NEXT_START, '2023-01-01 000000', $format];
+
+        yield [RollingDate::T_QUARTER_PREVIOUS_START, '2022-07-01 000000', $format];
+
+        yield [RollingDate::T_TODAY, '2022-11-07 000000', $format];
+
+        yield [RollingDate::T_WEEK_CURRENT_START, '2022-11-07 000000', $format];
+
+        yield [RollingDate::T_WEEK_NEXT_START, '2022-11-14 000000', $format];
+
+        yield [RollingDate::T_WEEK_PREVIOUS_START, '2022-10-31 000000', $format];
+
+        yield [RollingDate::T_YEAR_CURRENT_START, '2022-01-01 000000', $format];
+
+        yield [RollingDate::T_YEAR_NEXT_START, '2023-01-01 000000', $format];
+
+        yield [RollingDate::T_YEAR_PREVIOUS_START, '2021-01-01 000000', $format];
+    }
+
+    public function testConversionFixedDate()
+    {
+        $rollingDate = new RollingDate(RollingDate::T_FIXED_DATE, new DateTimeImmutable('2022-01-01'));
+
+        $this->assertEquals(
+            '2022-01-01',
+            $this->converter->convert($rollingDate)->format('Y-m-d')
+        );
+    }
+
+    public function testConvertOnDateNow()
+    {
+        $rollingDate = new RollingDate(RollingDate::T_YEAR_PREVIOUS_START);
+
+        $actual = $this->converter->convert($rollingDate);
+
+        $this->assertEquals(
+            (int) (new DateTimeImmutable('now'))->format('Y') - 1,
+            (int) $actual->format('Y')
+        );
+        $this->assertEquals(1, (int) $actual->format('m'));
+        $this->assertEquals(1, (int) $actual->format('d'));
+    }
+
+    /**
+     * @dataProvider generateDataConversionDate
+     */
+    public function testConvertOnPivotDate(string $roll, string $expectedDateTime, string $format)
+    {
+        $pivot = DateTimeImmutable::createFromFormat('Y-m-d His', '2022-11-07 000000');
+        $rollingDate = new RollingDate($roll, null, $pivot);
+
+        $this->assertEquals(
+            DateTime::createFromFormat($format, $expectedDateTime),
+            $this->converter->convert($rollingDate)
+        );
+    }
+}