/**
* Identify default product tax class ID.
*
* @return int|null
*/
public function getDefaultProductTaxClass()
{
$configValue = $this->taxHelper->getDefaultProductTaxClass();
if (!empty($configValue)) {
return $configValue;
}
$taxClasses = $this->productTaxClassSource->getAllOptions(false);
if (!empty($taxClasses)) {
$firstClass = array_shift($taxClasses);
return isset($firstClass['value']) ? $firstClass['value'] : null;
} else {
return null;
}
}
/**
* @magentoConfigFixture default_store tax/classes/default_product_tax_class 1
*/
public function testGetDefaultProductTaxClass()
{
$this->assertEquals(1, $this->helper->getDefaultProductTaxClass());
}
