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diff --git a/web/core/modules/field/tests/src/Kernel/Entity/Update/SqlContentEntityStorageSchemaColumnTest.php b/web/core/modules/field/tests/src/Kernel/Entity/Update/SqlContentEntityStorageSchemaColumnTest.php
new file mode 100644
index 000000000..05db0dc5c
--- /dev/null
+++ b/web/core/modules/field/tests/src/Kernel/Entity/Update/SqlContentEntityStorageSchemaColumnTest.php
@@ -0,0 +1,99 @@
+<?php
+
+namespace Drupal\Tests\field\Kernel\Entity\Update;
+
+use Drupal\Core\Entity\Exception\FieldStorageDefinitionUpdateForbiddenException;
+use Drupal\entity_test\Entity\EntityTestRev;
+use Drupal\field\Entity\FieldConfig;
+use Drupal\field\Entity\FieldStorageConfig;
+use Drupal\KernelTests\KernelTestBase;
+
+/**
+ * Tests that schema changes in fields with data are detected during updates.
+ *
+ * @group Entity
+ */
+class SqlContentEntityStorageSchemaColumnTest extends KernelTestBase {
+
+  /**
+   * {@inheritdoc}
+   */
+  public static $modules = ['entity_test', 'field', 'text', 'user'];
+
+  /**
+   * The created entity.
+   *
+   * @var \Drupal\Core\Entity\Entity
+   */
+  protected $entity;
+
+  /**
+   * The field.
+   *
+   * @var \Drupal\field\FieldConfigInterface
+   */
+  protected $field;
+
+  /**
+   * The field storage.
+   *
+   * @var \Drupal\field\FieldStorageConfigInterface
+   */
+  protected $fieldStorage;
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function setUp() {
+    parent::setUp();
+
+    $this->installEntitySchema('entity_test_rev');
+    $this->installEntitySchema('user');
+
+    $field_name = 'test';
+    $this->fieldStorage = FieldStorageConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test_rev',
+      'type' => 'string',
+      'cardinality' => 1,
+    ]);
+    $this->fieldStorage->save();
+
+    $this->field = FieldConfig::create([
+      'field_name' => $field_name,
+      'entity_type' => 'entity_test_rev',
+      'bundle' => 'entity_test_rev',
+      'required' => TRUE,
+    ]);
+    $this->field->save();
+
+    // Create an entity with field data.
+    $this->entity = EntityTestRev::create([
+      'user_id' => mt_rand(1, 10),
+      'name' => $this->randomMachineName(),
+      $field_name => $this->randomString(),
+    ]);
+    $this->entity->save();
+  }
+
+  /**
+   * Tests that column-level schema changes are detected for fields with data.
+   */
+  public function testColumnUpdate() {
+    // Change the field type in the stored schema.
+    $schema = \Drupal::keyValue('entity.storage_schema.sql')->get('entity_test_rev.field_schema_data.test');
+    $schema['entity_test_rev__test']['fields']['test_value']['type'] = 'varchar_ascii';
+    \Drupal::keyValue('entity.storage_schema.sql')->set('entity_test_rev.field_schema_data.test', $schema);
+
+    // Now attempt to run automatic updates. An exception should be thrown
+    // since there is data in the table.
+    try {
+      \Drupal::service('entity.definition_update_manager')->applyUpdates();
+      $this->fail('Failed to detect a schema change in a field with data.');
+    }
+    catch (FieldStorageDefinitionUpdateForbiddenException $e) {
+      $this->pass('Detected a schema change in a field with data.');
+    }
+  }
+
+}