--- /dev/null
+<?php
+
+namespace Drupal\Tests\system\Functional\Update;
+
+use Drupal\FunctionalTests\Update\UpdatePathTestBase;
+
+/**
+ * Tests the upgrade path after fixing field schema data uninstallation.
+ *
+ * @see https://www.drupal.org/node/2573667
+ *
+ * @group Update
+ */
+class FieldSchemaDataUninstallUpdateTest extends UpdatePathTestBase {
+
+ /**
+ * {@inheritdoc}
+ */
+ protected function setDatabaseDumpFiles() {
+ $this->databaseDumpFiles = [
+ __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-8.bare.standard.php.gz',
+ __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-8.block-content-uninstall.php',
+ __DIR__ . '/../../../../../system/tests/fixtures/update/drupal-8.field-schema-data-uninstall-2573667.php',
+ ];
+ }
+
+ /**
+ * Tests the upgrade path after fixing field schema data uninstallation.
+ */
+ public function testUpdateHookN() {
+ $this->assertFieldSchemaData(TRUE, 'Field schema data to be purged found before update.');
+ $this->runUpdates();
+ $this->assertFieldSchemaData(FALSE, 'No field schema data to be purged found after update.');
+ }
+
+ /**
+ * Asserts that field schema data to be purged is found.
+ *
+ * @param bool $found
+ * Whether field schema data is expected to be found or not.
+ * @param string $message
+ * The assert message.
+ *
+ * @return bool
+ * TRUE if the assertion succeeded, FALSE otherwise.
+ */
+ protected function assertFieldSchemaData($found, $message) {
+ $query = \Drupal::database()
+ ->select('key_value', 'kv')
+ ->fields('kv');
+ $query
+ ->condition('kv.collection', 'entity.storage_schema.sql')
+ ->condition('kv.name', 'block_content.field_schema_data.%', 'LIKE');
+ $items = $query
+ ->execute()
+ ->fetchAll();
+
+ return $this->assertEqual((bool) $items, $found, $message);
+ }
+
+}