EmailActionTest.php

<?php

namespace Drupal\KernelTests\Core\Action;

use Drupal\Core\Test\AssertMailTrait;
use Drupal\KernelTests\KernelTestBase;

/**
 * Tests for the EmailAction plugin.
 *
 * @group action
 */
class EmailActionTest extends KernelTestBase {
    use AssertMailTrait;
    
    /**
     * {@inheritdoc}
     */
    public static $modules = [
        'system',
        'user',
        'dblog',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        parent::setUp();
        $this->installEntitySchema('user');
        $this->installSchema('dblog', [
            'watchdog',
        ]);
    }
    
    /**
     * Test the email action plugin.
     */
    public function testEmailAction() {
        
        /** @var \Drupal\Core\Action\ActionManager $plugin_manager */
        $plugin_manager = $this->container
            ->get('plugin.manager.action');
        $configuration = [
            'recipient' => 'test@example.com',
            'subject' => 'Test subject',
            'message' => 'Test message',
        ];
        $plugin_manager->createInstance('action_send_email_action', $configuration)
            ->execute();
        $mails = $this->getMails();
        $this->assertCount(1, $this->getMails());
        $this->assertEquals('test@example.com', $mails[0]['to']);
        $this->assertEquals('Test subject', $mails[0]['subject']);
        $this->assertEquals("Test message\n", $mails[0]['body']);
        // Ensure that the email sending is logged.
        $log = \Drupal::database()->select('watchdog', 'w')
            ->fields('w', [
            'message',
            'variables',
        ])
            ->orderBy('wid', 'DESC')
            ->range(0, 1)
            ->execute()
            ->fetch();
        $this->assertEquals($log->message, 'Sent email to %recipient');
        $variables = unserialize($log->variables);
        $this->assertEquals($variables['%recipient'], 'test@example.com');
    }

}