Add GetTaxZoneCountry class to be able to use country based tax zones #1248
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In the
GetTaxZone
class, there is logic for dealing with postcode-based and state-based tax zones, but not for country-based ones. This PR aims to fill this gap.I've followed the general concept of the existing
GetTaxZonePostcode
andGetTaxZoneState
classes for the newGetTaxZoneCountry
class.I've assumed that country comes at the bottom of the priority hierarchy: if an address has a postcode matching a
TaxZonePostcode
, that takes priority over state and country, after that, state takes priority over country, and only if there's no matching tax zone for postcode or state, we're gonna look for aTaxZoneCountry
. This should also help ensure that this is not a breaking change.I've also added some tests.