OXDEV-46 Clean up & small refactorings for readability

Author: sebbbbauer

library/UnitTestCase.php

@@ -24,6 +24,7 @@
 use modOXID;
 use modOxUtilsDate;
 
+use oxDatabaseHelper;
 use OxidEsales\Eshop\Core\DatabaseProvider;
 use OxidEsales\EshopCommunity\Core\Database\Adapter\DatabaseInterface;
 use OxidEsales\EshopCommunity\Core\Database;
@@ -38,6 +39,7 @@
 use ReflectionClass;
 use Exception;
 
+require_once TEST_LIBRARY_HELPERS_PATH . 'oxDatabaseHelper.php';
 require_once TEST_LIBRARY_HELPERS_PATH . 'modOxUtilsDate.php';
 
 /**

library/helpers/oxDatabaseHelper.php

@@ -1,5 +1,4 @@
 <?php
-
 /**
  * This file is part of OXID eSales Testing Library.
  *
@@ -81,6 +80,21 @@ public function existsView($tableName)
         return $tableNameView === $this->database->getOne($sql);
     }
 
+    /**
+     * @param string $tableName The name of the table we want to assure to exist.
+     *
+     * @return bool Does the database table with the given name exists?
+     */
+    public function existsTable($tableName)
+    {
+        $database = DatabaseProvider::getDb();
+        $sql = "SELECT COUNT(TABLE_NAME) FROM information_schema.TABLES WHERE TABLE_NAME = '$tableName'";
+
+        $count = $database->getOne($sql);
+
+        return $count > 0;
+    }
+
     public function adjustTemplateBlocksOxModuleColumn()
     {
         $sql = "ALTER TABLE `oxtplblocks`