Testing Models

Customer.swift

import Foundation

public struct Customer: RemoteModelType {
	// public init(email: String? = nil, phone: String? = nil, firstName: String? = nil, ...) {}

  	public var billingAddress: Address? {
		if var address = self.defaultAddress ?? self.addresses.first {
			address.firstName = address.firstName ?? self.firstName
			return address.isValidForBilling() ? address : nil
		}
		return nil
	}
}

CustomerTests.swift

import XCTest
@testable import Shopify_POS
@testable import CheckoutSDK

class CustomerTests: XCTestCase {
  func testBillingAddressReturnsFirstDefaultAddress() {
		var address1 = Address.Fixtures.beverlyHillsAddress()
		address1.isDefault = false
    
		var defaultAddress = Address.Fixtures.beverlyHillsAddressWithValidBillingAddress()
		defaultAddress.isDefault = true
    
		var address3 = Address.Fixtures.beverlyHillsAddress()
		address3.isDefault = true
    
		var customer = Customer(customer: SHPCustomer.minimumFixture())
		customer.addresses = [address1, defaultAddress, address3]

		XCTAssertEqual(customer.billingAddress!,  defaultAddress)
	}
}