diff --git a/class/Dummy.php b/class/Dummy.php
new file mode 100644
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+++ b/class/Dummy.php
@@ -0,0 +1,105 @@
+<?php
+/*
+ * Copyright (C) 2021 Eichehome
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+ /**
+  * Klasse um die Datenbank beim Testen zu simulieren
+  */
+
+class Dummy extends DBClass
+{
+  /**
+   * Diese Methode prüft, ob das Loginpasswort und -name mit den Werten in der Datenbank übereinstimmen
+   * @param string $name Loginname
+   * @param string $passwort Loginpasswort
+   * @return boolean
+   */
+  public function checkLogin(string $name, string $passwort)
+  {
+    if ($name == "christian.brueggen" && $passwort == "123") {
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  /**
+   * Diese Methode prüft, ob ein Nutzer sich schon eingetragen hat
+   * @param string $name
+   * @return boolean
+   */
+  public function hasAlredySelected(string $name)
+  {
+    $sql = 'SELECT * FROM Test_v2 WHERE Name=:name AND Kurs IS NOT NULL AND Kurs2 IS NOT NULL AND Kurs3 IS NOT NULL ';
+
+    $params = array(
+      'name' => $name
+    );
+
+    $result = $this->select($sql, $params);
+
+    if (count($result) == 1) {
+      return true;
+    } else {
+      return false;
+    }
+  }
+
+  /**
+   * Diese Methode gibt alle verfügbaren Kurse aus
+   * @return Countable|array
+   */
+  public function selectKurse()
+  {
+    $sql = 'SELECT name, stunde FROM Kurse';
+
+    return $this->select($sql);
+  }
+
+  /**
+   * Diese Methode trägt die Auswahl eines Benutzers in die Datenbank ein
+   * @param string Loginname
+   * @param array[strings] Die ausgewählten Kurse
+   * @return boolean
+   */
+  public function insertSelection(string $name, array $kurse)
+  {
+    if (count($kurse) == 3) {
+      $sql = 'UPDATE Test_v2 SET Kurs=:kurs1, Kurs2=:kurs2, Kurs3=:kurs3 WHERE name =:name';
+
+      $params = array(
+        'name' => $name,
+        'kurs1' => $kurse[0],
+        'kurs2' => $kurse[1],
+        'kurs3' => $kurse[2]
+      );
+
+      return $this->query($sql, $params);
+    } else {
+      return false;
+    }
+  }
+
+  /**
+   * Nicht mehr nötig
+   * @param string $name
+   * @return boolean
+   */
+  /*public function updateHasAlredySelected(string $name)
+    {
+        return true;
+    }*/
+}