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diff --git a/web/core/modules/field/tests/src/Kernel/FieldImportDeleteUninstallTest.php b/web/core/modules/field/tests/src/Kernel/FieldImportDeleteUninstallTest.php
new file mode 100644
index 000000000..c3a4d3c1d
--- /dev/null
+++ b/web/core/modules/field/tests/src/Kernel/FieldImportDeleteUninstallTest.php
@@ -0,0 +1,168 @@
+<?php
+
+namespace Drupal\Tests\field\Kernel;
+
+use Drupal\entity_test\Entity\EntityTest;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+
+/**
+ * Delete field storages and fields during config synchronization and uninstall
+ * module that provides the field type.
+ *
+ * @group field
+ * @see \Drupal\field\ConfigImporterFieldPurger
+ * @see field_config_import_steps_alter()
+ */
+class FieldImportDeleteUninstallTest extends FieldKernelTestBase {
+
+  /**
+   * Modules to enable.
+   *
+   * @var array
+   */
+  public static $modules = ['telephone'];
+
+  protected function setUp() {
+    parent::setUp();
+    // Module uninstall requires users_data tables.
+    // @see drupal_flush_all_caches()
+    // @see user_modules_uninstalled()
+    $this->installSchema('user', ['users_data']);
+  }
+
+  /**
+   * Tests deleting field storages and fields as part of config import.
+   */
+  public function testImportDeleteUninstall() {
+    // Create a field to delete to prove that
+    // \Drupal\field\ConfigImporterFieldPurger does not purge fields that are
+    // not related to the configuration synchronization.
+    $unrelated_field_storage = FieldStorageConfig::create([
+      'field_name' => 'field_int',
+      'entity_type' => 'entity_test',
+      'type' => 'integer',
+    ]);
+    $unrelated_field_storage->save();
+    FieldConfig::create([
+      'field_storage' => $unrelated_field_storage,
+      'bundle' => 'entity_test',
+    ])->save();
+
+    // Create a telephone field for validation.
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => 'field_test',
+      'entity_type' => 'entity_test',
+      'type' => 'telephone',
+    ]);
+    $field_storage->save();
+    FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'entity_test',
+    ])->save();
+
+    $entity = EntityTest::create();
+    $value = '+0123456789';
+    $entity->field_test = $value;
+    $entity->field_int = '99';
+    $entity->name->value = $this->randomMachineName();
+    $entity->save();
+
+    // Verify entity has been created properly.
+    $id = $entity->id();
+    $entity = EntityTest::load($id);
+    $this->assertEqual($entity->field_test->value, $value);
+    $this->assertEqual($entity->field_test[0]->value, $value);
+    $this->assertEqual($entity->field_int->value, '99');
+
+    // Delete unrelated field before copying configuration and running the
+    // synchronization.
+    $unrelated_field_storage->delete();
+
+    $active = $this->container->get('config.storage');
+    $sync = $this->container->get('config.storage.sync');
+    $this->copyConfig($active, $sync);
+
+    // Stage uninstall of the Telephone module.
+    $core_extension = $this->config('core.extension')->get();
+    unset($core_extension['module']['telephone']);
+    $sync->write('core.extension', $core_extension);
+
+    // Stage the field deletion
+    $sync->delete('field.storage.entity_test.field_test');
+    $sync->delete('field.field.entity_test.entity_test.field_test');
+
+    $steps = $this->configImporter()->initialize();
+    $this->assertIdentical($steps[0], ['\Drupal\field\ConfigImporterFieldPurger', 'process'], 'The additional process configuration synchronization step has been added.');
+
+    // This will purge all the data, delete the field and uninstall the
+    // Telephone module.
+    $this->configImporter()->import();
+
+    $this->assertFalse(\Drupal::moduleHandler()->moduleExists('telephone'));
+    $this->assertFalse(\Drupal::entityManager()->loadEntityByUuid('field_storage_config', $field_storage->uuid()), 'The test field has been deleted by the configuration synchronization');
+    $deleted_storages = \Drupal::state()->get('field.storage.deleted') ?: [];
+    $this->assertFalse(isset($deleted_storages[$field_storage->uuid()]), 'Telephone field has been completed removed from the system.');
+    $this->assertTrue(isset($deleted_storages[$unrelated_field_storage->uuid()]), 'Unrelated field not purged by configuration synchronization.');
+  }
+
+  /**
+   * Tests purging already deleted field storages and fields during a config
+   * import.
+   */
+  public function testImportAlreadyDeletedUninstall() {
+    // Create a telephone field for validation.
+    $field_storage = FieldStorageConfig::create([
+      'field_name' => 'field_test',
+      'entity_type' => 'entity_test',
+      'type' => 'telephone',
+    ]);
+    $field_storage->save();
+    $field_storage_uuid = $field_storage->uuid();
+    FieldConfig::create([
+      'field_storage' => $field_storage,
+      'bundle' => 'entity_test',
+    ])->save();
+
+    // Create 12 entities to ensure that the purging works as expected.
+    for ($i = 0; $i < 12; $i++) {
+      $entity = EntityTest::create();
+      $value = '+0123456789';
+      $entity->field_test = $value;
+      $entity->name->value = $this->randomMachineName();
+      $entity->save();
+
+      // Verify entity has been created properly.
+      $id = $entity->id();
+      $entity = EntityTest::load($id);
+      $this->assertEqual($entity->field_test->value, $value);
+    }
+
+    // Delete the field.
+    $field_storage->delete();
+
+    $active = $this->container->get('config.storage');
+    $sync = $this->container->get('config.storage.sync');
+    $this->copyConfig($active, $sync);
+
+    // Stage uninstall of the Telephone module.
+    $core_extension = $this->config('core.extension')->get();
+    unset($core_extension['module']['telephone']);
+    $sync->write('core.extension', $core_extension);
+
+    $deleted_storages = \Drupal::state()->get('field.storage.deleted') ?: [];
+    $this->assertTrue(isset($deleted_storages[$field_storage_uuid]), 'Field has been deleted and needs purging before configuration synchronization.');
+
+    $steps = $this->configImporter()->initialize();
+    $this->assertIdentical($steps[0], ['\Drupal\field\ConfigImporterFieldPurger', 'process'], 'The additional process configuration synchronization step has been added.');
+
+    // This will purge all the data, delete the field and uninstall the
+    // Telephone module.
+    $this->configImporter()->import();
+
+    $this->assertFalse(\Drupal::moduleHandler()->moduleExists('telephone'));
+    $deleted_storages = \Drupal::state()->get('field.storage.deleted') ?: [];
+    $this->assertFalse(isset($deleted_storages[$field_storage_uuid]), 'Field has been completed removed from the system.');
+  }
+
+}