public Object getClientGuiElement(int id, EntityPlayer player, World world, int x, int y, int z) {
switch (id) {
case GuiTestIds.TESTER_ID:
return new GuiTester(player, x, y, z);
case GuiTestIds.TESTCASE_ID:
return new GuiTestCase(player, x, y, z);
default:
return null;
}
}