UpdateLobTest.php

<?php

namespace Drupal\KernelTests\Core\Database;

use Drupal\Component\Render\FormattableMarkup;

/**
 * Tests the Update query builder with LOB fields.
 *
 * @group Database
 */
class UpdateLobTest extends DatabaseTestBase {
    
    /**
     * Confirms that we can update a blob column.
     */
    public function testUpdateOneBlob() {
        $data = "This is\x00a test.";
        $this->assertTrue(strlen($data) === 15, 'Test data contains a NULL.');
        $id = $this->connection
            ->insert('test_one_blob')
            ->fields([
            'blob1' => $data,
        ])
            ->execute();
        $data .= $data;
        $this->connection
            ->update('test_one_blob')
            ->condition('id', $id)
            ->fields([
            'blob1' => $data,
        ])
            ->execute();
        $r = $this->connection
            ->query('SELECT * FROM {test_one_blob} WHERE id = :id', [
            ':id' => $id,
        ])
            ->fetchAssoc();
        $this->assertTrue($r['blob1'] === $data, new FormattableMarkup('Can update a blob: id @id, @data.', [
            '@id' => $id,
            '@data' => serialize($r),
        ]));
    }
    
    /**
     * Confirms that we can update two blob columns in the same table.
     */
    public function testUpdateMultipleBlob() {
        $id = $this->connection
            ->insert('test_two_blobs')
            ->fields([
            'blob1' => 'This is',
            'blob2' => 'a test',
        ])
            ->execute();
        $this->connection
            ->update('test_two_blobs')
            ->condition('id', $id)
            ->fields([
            'blob1' => 'and so',
            'blob2' => 'is this',
        ])
            ->execute();
        $r = $this->connection
            ->query('SELECT * FROM {test_two_blobs} WHERE id = :id', [
            ':id' => $id,
        ])
            ->fetchAssoc();
        $this->assertTrue($r['blob1'] === 'and so' && $r['blob2'] === 'is this', 'Can update multiple blobs per row.');
    }

}