function NewDefaultThemeBlocksTest::testBlockCollision

Checks that a theme block is still created when same ID exists.

File

core/modules/block/tests/src/Kernel/NewDefaultThemeBlocksTest.php, line 117

Class

NewDefaultThemeBlocksTest

Tests that a new default theme gets blocks.

Namespace

Code

public function testBlockCollision() : void {
    $default_theme = $this->defaultTheme;
    $theme_installer = $this->themeInstaller;
    $theme_installer->install([
        $default_theme,
    ]);
    // Add two instances of the user login block with machine
    // names that will collide.
    $this->placeBlock('user_login_block', [
        'id' => 'user_login_block',
    ]);
    $this->placeBlock('user_login_block', [
        'id' => $default_theme . '_user_login_block',
    ]);
    // Add an instance of a different block.
    $this->placeBlock('system_powered_by_block', [
        'id' => $default_theme . '_' . strtolower($this->randomMachineName(8)),
    ]);
    // Install a different theme that does not have blocks.
    $new_theme = 'test_theme';
    // The new theme is different from the previous default theme.
    $this->assertNotEquals($new_theme, $default_theme);
    $theme_installer->install([
        $new_theme,
    ]);
    $this->config('system.theme')
        ->set('default', $new_theme)
        ->save();
    $block_storage = $this->container
        ->get('entity_type.manager')
        ->getStorage('block');
    // Ensure that the new default theme has the same blocks as the previous
    // default theme.
    $default_block_names = $block_storage->getQuery()
        ->accessCheck(FALSE)
        ->condition('theme', $default_theme)
        ->execute();
    $new_blocks = $block_storage->getQuery()
        ->accessCheck(FALSE)
        ->condition('theme', $new_theme)
        ->execute();
    $this->assertSameSize($default_block_names, $new_blocks);
    foreach ($default_block_names as $default_block_name) {
        // Remove the matching block from the list of blocks in the new theme.
        // For example, if the old theme has block.block.stark_admin,
        // unset block.block.olivero_admin.
        unset($new_blocks[str_replace($default_theme . '_', $new_theme . '_', $default_block_name)]);
    }
    // The test_theme_user_login_block machine name is already in use, so therefore
    // \Drupal\block\BlockRepository::getUniqueMachineName
    // appends a counter.
    unset($new_blocks[$new_theme . '_user_login_block_2']);
    $this->assertEmpty($new_blocks);
    // Install a hidden base theme and ensure blocks are not copied.
    $base_theme = 'test_base_theme';
    $theme_installer->install([
        $base_theme,
    ]);
    $new_blocks = $block_storage->getQuery()
        ->accessCheck(FALSE)
        ->condition('theme', $base_theme)
        ->execute();
    // Installing a hidden base theme does not copy the blocks from the default
    // theme.
    $this->assertEmpty($new_blocks);
}