diff --git a/core/tests/Drupal/KernelTests/Core/Database/InsertDefaultsTest.php b/core/tests/Drupal/KernelTests/Core/Database/InsertDefaultsTest.php
index 687d9328e9..90d61c8f67 100644
--- a/core/tests/Drupal/KernelTests/Core/Database/InsertDefaultsTest.php
+++ b/core/tests/Drupal/KernelTests/Core/Database/InsertDefaultsTest.php
@@ -3,6 +3,7 @@
 namespace Drupal\KernelTests\Core\Database;
 
 use Drupal\Core\Database\Query\NoFieldsException;
+use Drupal\TestTools\Extension\SchemaInspector;
 
 /**
  * Tests the Insert query builder with default values.
@@ -56,4 +57,48 @@ public function testDefaultInsertWithFields() {
     $this->assertSame('Undefined', $job, 'Default field value is set.');
   }
 
+  /**
+   * Tests that a semicolon can appear in a default value.
+   */
+  public function testDefaultSemicolon() {
+    $module_handler = $this->container->get('module_handler');
+    $specification = SchemaInspector::getTablesSpecification($module_handler, 'database_test');
+    $schema = $specification['test'];
+    $schema['fields']['job']['default'] = ';';
+    $this->connection->schema()->createTable('test_semicolon_default', $schema);
+    $query = $this->connection->insert('test_semicolon_default')
+      ->fields(['name' => 'Bob'])
+      ->useDefaults(['job']);
+    $id = $query->execute();
+
+    $job = $this->connection->select('test_semicolon_default', 'tsd')
+      ->fields('tsd', ['job'])
+      ->condition('id', $id)
+      ->execute()
+      ->fetchField();
+    $this->assertSame('Undefined', $job, 'Default field value is set.');
+  }
+
+  /**
+   * Tests that curly brackets can appear in a default value.
+   */
+  public function testDefaultBrackets() {
+    $module_handler = $this->container->get('module_handler');
+    $specification = SchemaInspector::getTablesSpecification($module_handler, 'database_test');
+    $schema = $specification['test'];
+    $schema['fields']['job']['default'] = '{test}';
+    $this->connection->schema()->createTable('test_bracket_default', $schema);
+    $query = $this->connection->insert('test_bracket_default')
+      ->fields(['name' => 'Bob'])
+      ->useDefaults(['job']);
+    $id = $query->execute();
+
+    $job = $this->connection->select('test_bracket_default', 'tbd')
+      ->fields('tbd', ['job'])
+      ->condition('id', $id)
+      ->execute()
+      ->fetchField();
+    $this->assertSame('Undefined', $job, 'Default field value is set.');
+  }
+
 }