1 files changed, 14 insertions, 0 deletions
diff --git a/modules/system/system.test b/modules/system/system.test
index 049502194..55c4083a5 100644
--- a/modules/system/system.test
+++ b/modules/system/system.test
@@ -1604,6 +1604,20 @@ class UpdateScriptFunctionalTest extends DrupalWebTestCase {
     $this->drupalGet($this->update_url, array('external' => TRUE));
     $this->assertResponse(200);
   }
+
+  /**
+   * Tests the effect of using the update script on the theme system.
+   */
+  function testThemeSystem() {
+    // Since visiting update.php triggers a rebuild of the theme system from an
+    // unusual maintenance mode environment, we check that this rebuild did not
+    // put any incorrect information about the themes into the database.
+    $original_theme_data = db_query("SELECT * FROM {system} WHERE type = 'theme' ORDER BY name")->fetchAll();
+    $this->drupalLogin($this->update_user);
+    $this->drupalGet($this->update_url, array('external' => TRUE));
+    $final_theme_data = db_query("SELECT * FROM {system} WHERE type = 'theme' ORDER BY name")->fetchAll();
+    $this->assertEqual($original_theme_data, $final_theme_data, t('Visiting update.php does not alter the information about themes stored in the database.'));
+  }
 }
 
 /**