FakeViewModeContext.php

<?php

namespace Drupal\layout_builder_fieldblock_test\ContextProvider;

use Drupal\Core\Plugin\Context\Context;
use Drupal\Core\Plugin\Context\ContextDefinition;
use Drupal\Core\Plugin\Context\ContextProviderInterface;

/**
 * Provides a global context for view_mode for testing purposes.
 *
 * @group layout_builder
 */
class FakeViewModeContext implements ContextProviderInterface {
    
    /**
     * {@inheritdoc}
     */
    public function getRuntimeContexts(array $unqualified_context_ids) {
        return [
            'view_mode' => new Context(new ContextDefinition('string'), 'default'),
        ];
    }
    
    /**
     * {@inheritdoc}
     */
    public function getAvailableContexts() {
        return $this->getRuntimeContexts([]);
    }

}