Issue #3320143 by muriqui: Add test cases for migrate process plugin

      // Use the UNTIL value as the last event in the series.

      $end_series = new DrupalDateTime($rrule['UNTIL'], $source_timezone);

    }

    // Adjust the timezone before storing values into the database.\

    // Adjust the timezone before storing values into the database.

    $start_event->setTimezone($storage_timezone);

    $end_event->setTimezone($storage_timezone);

    $end_series->setTimezone($storage_timezone);

<?php

namespace Drupal\Tests\recurring_events\Unit\Plugin\migrate\process;

use Drupal\Core\DependencyInjection\ContainerBuilder;

use Drupal\Core\Language\LanguageInterface;

use Drupal\Core\Language\LanguageManagerInterface;

use Drupal\Core\StringTranslation\TranslatableMarkup;

use Drupal\Core\StringTranslation\TranslationInterface;

use Drupal\recurring_events\Plugin\migrate\process\RecurringDate;

use Drupal\Tests\migrate\Unit\process\MigrateProcessTestCase;

use Prophecy\Argument;

/**

 * @coversDefaultClass \Drupal\recurring_events\Plugin\migrate\process\RecurringDate

 * @group recurring_events

 */

class RecurringDateTest extends MigrateProcessTestCase {

  /**

   * {@inheritdoc}

   */

  protected function setUp(): void {

    parent::setUp();

    // Mocks for non-injected services used by DrupalDateTime.

    $language = $this->prophesize(LanguageInterface::class);

    $language->getId()->willReturn('en');

    $languageManager = $this->prophesize(LanguageManagerInterface::class);

    $languageManager->getCurrentLanguage()->willReturn($language->reveal());

    $stringTranslation = $this->prophesize(TranslationInterface::class);

    $stringTranslation->translateString(Argument::type(TranslatableMarkup::class))->will(function ($args) {

      return $args[0]->getUntranslatedString();

    });

    // Mocked service container.

    $container = new ContainerBuilder();

    $container->set('language_manager', $languageManager->reveal());

    $container->set('string_translation', $stringTranslation->reveal());

    \Drupal::setContainer($container);

  }

  /**

   * Tests processing simple arrays of datetimes.

   *

   * @covers ::transform

   *

   * @throws \Drupal\migrate\MigrateException

   */

  public function testTransformSimpleValues() {

    $configuration = [

      'default_timezone' => 'America/New_York',

    ];

    $this->plugin = new RecurringDate($configuration, 'recurring_date', []);

    $source = [

      [

        '20220719T120000',

        '20220719T130000',

      ],

    ];

    $expected = [

      [

        'value' => '2022-07-19T16:00:00',

        'end_value' => '2022-07-19T17:00:00',

      ],

    ];

    $value = $this->plugin->transform($source, $this->migrateExecutable, $this->row, 'destination_property');

    $this->assertSame($expected, $value);

  }

  /**

   * Tests processing associative arrays with timezones and RRULEs.

   *

   * @covers ::transform

   *

   * @throws \Drupal\migrate\MigrateException

   */

  public function testTransformComplexValues() {

    $configuration = [

      'value_key' => 'start',

      'end_value_key' => 'end',

      'rrule_key' => 'rrule',

      'timezone_key' => 'timezone',

      'default_timezone' => 'America/New_York',

    ];

    $this->plugin = new RecurringDate($configuration, 'recurring_date', []);

    $source = [

      [

        'start' => '20220719T120000',

        'end' => '20220719T140000',

        'rrule' => 'FREQ=WEEKLY;UNTIL=20220802T140000',

        'timezone' => 'America/Detroit',

      ],

    ];

    $expected = [

      'value' => '2022-07-19T16:00:00',

      'end_value' => '2022-08-02T18:00:00',

      'time' => '04:00 pm',

      'end_time' => '06:00 pm',

      'duration' => 7200,

      'duration_or_end_time' => 'end_time',

      'days' => 'tuesday',

    ];

    $value = $this->plugin->transform($source, $this->migrateExecutable, $this->row, 'destination_property');

    $this->assertSame($expected, $value);

  }

}