FieldDefaultValueCallbackTest.php

<?php

namespace Drupal\Tests\field\Functional;

use Drupal\field\Entity\FieldConfig;
use Drupal\field\Entity\FieldStorageConfig;
use Drupal\Tests\BrowserTestBase;

/**
 * Tests the default value callback.
 *
 * @group field
 */
class FieldDefaultValueCallbackTest extends BrowserTestBase {
    
    /**
     * Modules to enable.
     *
     * @var array
     */
    protected static $modules = [
        'node',
        'field_test',
        'field_ui',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * The field name.
     *
     * @var string
     */
    private $fieldName;
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() : void {
        parent::setUp();
        $this->fieldName = 'field_test';
        // Create Article node types.
        if ($this->profile != 'standard') {
            $this->drupalCreateContentType([
                'type' => 'article',
                'name' => 'Article',
            ]);
        }
    }
    public function testDefaultValueCallbackForm() {
        // Create a field and storage for checking.
        
        /** @var \Drupal\field\Entity\FieldStorageConfig $field_storage */
        FieldStorageConfig::create([
            'field_name' => $this->fieldName,
            'entity_type' => 'node',
            'type' => 'text',
        ])
            ->save();
        
        /** @var \Drupal\field\Entity\FieldConfig $field_config */
        $field_config = FieldConfig::create([
            'entity_type' => 'node',
            'field_name' => $this->fieldName,
            'bundle' => 'article',
        ]);
        $field_config->save();
        $this->drupalLogin($this->rootUser);
        // Check that the default field form is visible when no callback is set.
        $this->drupalGet('/admin/structure/types/manage/article/fields/node.article.field_test');
        $this->assertSession()
            ->fieldValueEquals('default_value_input[field_test][0][value]', '');
        // Set a different field value, it should be on the field.
        $default_value = $this->randomString();
        $field_config->setDefaultValue([
            [
                'value' => $default_value,
            ],
        ])
            ->save();
        $this->drupalGet('/admin/structure/types/manage/article/fields/node.article.field_test');
        $this->assertSession()
            ->fieldValueEquals('default_value_input[field_test][0][value]', $default_value);
        // Set a different field value to the field directly, instead of an array.
        $default_value = $this->randomString();
        $field_config->setDefaultValue($default_value)
            ->save();
        $this->drupalGet('/admin/structure/types/manage/article/fields/node.article.field_test');
        $this->assertSession()
            ->fieldValueEquals('default_value_input[field_test][0][value]', $default_value);
        // Set a default value callback instead, and the default field form should
        // not be visible.
        $field_config->setDefaultValueCallback('\\Drupal\\field_test\\FieldDefaultValueCallbackProvider::calculateDefaultValue')
            ->save();
        $this->drupalGet('/admin/structure/types/manage/article/fields/node.article.field_test');
        $this->assertSession()
            ->fieldNotExists('default_value_input[field_test][0][value]');
    }

}