function TestGoogleCartSimple()
{
$Gcart = new googlecart('123', 'abc', "sandbox", 'GBP');
$Gitem = new GoogleItem('Name', 'description', '3', '12.34');
$Gitem->SetMerchantPrivateItemData(new MerchantPrivateItemData('PrivateItemData'));
$Gitem->SetMerchantItemId('123-4321');
// $Gitem->SetTaxTableSelector('TaxableGood');
$Gcart->AddItem($Gitem);
$this->assertEquals(trim($Gcart->getXML()), trim('<?xml version="1.0" encoding="utf-8"?>
<checkout-shopping-cart xmlns="http://checkout.google.com/schema/2">
<shopping-cart>
<items>
<item>
<item-name>Name</item-name>
<item-description>description</item-description>
<unit-price currency="GBP">12.34</unit-price>
<quantity>3</quantity>
<merchant-private-item-data>PrivateItemData</merchant-private-item-data>
<merchant-item-id>123-4321</merchant-item-id>
</item>
</items>
</shopping-cart>
<checkout-flow-support>
<merchant-checkout-flow-support>
</merchant-checkout-flow-support>
</checkout-flow-support>
</checkout-shopping-cart>'));
}
