function LayoutBuilderBlockContentDependencyTest::testInstallLayoutBuilderAndBlockContent

Test that block_content can be successfully installed after layout_builder.

The InlineBlock plugin class in layout_builder uses RefinableDependentAccessTrait, which used to live in block_content, though block_content is not a layout_builder dependency. Since the BlockContent entity type class also uses the same trait, if, in order and in the same request: 1. layout_builder is installed first without block_content 2. block plugins are discovered 3. block_content is installed, a fatal error can occur, because the trait was missing before block_content is installed and gets aliased to an empty trait. When the installation of the block_content module installs the BlockContent entity type, the empty trait is missing the methods that need to be implemented from the interface.

See also

\Drupal\Component\Plugin\Discovery\AttributeClassDiscovery

\Drupal\Component\Discovery\MissingClassDetectionClassLoader

File

core/modules/layout_builder/tests/src/Kernel/LayoutBuilderBlockContentDependencyTest.php, line 36

Class

LayoutBuilderBlockContentDependencyTest

Test for installing Layout Builder before Block Content in the same request.

Namespace

Code

public function testInstallLayoutBuilderAndBlockContent() : void {
    $this->assertFalse(\Drupal::moduleHandler()->moduleExists('block_content'));
    // Prevent classes in the block_content modules from being loaded before the
    // module is installed.
    $this->classLoader
        ->setPsr4("Drupal\\block_content\\", '');
    // Install test module that will act on layout_builder being installed and
    // at that time does block plugin discovery first, then installs
    // block_content.
    \Drupal::service('module_installer')->install([
        'layout_builder_block_content_dependency_test',
    ]);
    \Drupal::service('module_installer')->install([
        'layout_builder',
    ]);
    $this->assertTrue(\Drupal::moduleHandler()->moduleExists('block_content'));
}