woocommerce/tests/unit-tests/customer.php

<?php
class WC_Tests_Customer extends WC_Unit_Test_Case {

	/**
	 * Test the get_taxable_address method
	 */
	public function test_get_taxable_address() {

		$base_store_address = WC_Helper_Customer::get_expected_store_location();
		$customer_address = WC_Helper_Customer::get_expected_customer_location();
		
		// Get the original settings for the session and the WooCommerce options
		$original_chosen_shipping_methods = WC_Helper_Customer::get_chosen_shipping_methods();
		$original_tax_based_on = WC_Helper_Customer::get_tax_based_on();
		$original_customer_details = WC_Helper_Customer::get_customer_details();

		$customer = WC_Helper_Customer::create_mock_customer();

		// Create dummy product, and add the product to the cart.
		
		$product = WC_Helper_Product::create_simple_product();
		WC()->cart->add_to_cart( $product->id, 1 );

		// Customer is going with the Local Pickup option, and the store calculates tax based on the store location.

		WC_Helper_Customer::set_chosen_shipping_methods( array( 'local_pickup' ) );
		WC_Helper_Customer::set_tax_based_on( 'base' );
		$this->assertEquals( $customer->get_taxable_address(), $base_store_address );

		// Customer is going with the Local Pickup option, and the store calculates tax based on the customer's billing address.

		WC_Helper_Customer::set_chosen_shipping_methods( array( 'local_pickup' ) );
		WC_Helper_Customer::set_tax_based_on( 'billing' );
		$this->assertEquals( $customer->get_taxable_address(), $base_store_address );

		// Customer is going with the Free Shipping option, and the store calculates tax based on the customer's billing address.

		WC_Helper_Customer::set_chosen_shipping_methods( array( 'free_shipping' ) );
		WC_Helper_Customer::set_tax_based_on( 'billing' );		
		$this->assertEquals( $customer->get_taxable_address(), $customer_address );

		// Customer is going with the Free Shipping option, and the store calculates tax based on the store base location.

		WC_Helper_Customer::set_chosen_shipping_methods( array( 'free_shipping' ) );
		WC_Helper_Customer::set_tax_based_on( 'base' );		
		$this->assertEquals( $customer->get_taxable_address(), $base_store_address );

		//Now reset the settings back to the way they were before this test

		WC_Helper_Customer::set_chosen_shipping_methods( $original_chosen_shipping_methods );
		WC_Helper_Customer::set_tax_based_on( $original_tax_based_on );
		WC_Helper_Customer::set_customer_details( $original_customer_details );

		// Clean up the cart
		WC()->cart->empty_cart();

		// Clean up product
		WC_Helper_Product::delete_product( $product->id );
	}

	/**
	 * Test the is_customer_outside_base method
	 */
	public function test_is_customer_outside_base() {

		// Get the original settings for the session and the WooCommerce options
		$original_chosen_shipping_methods = WC_Helper_Customer::get_chosen_shipping_methods();
		$original_tax_based_on = WC_Helper_Customer::get_tax_based_on();
		$original_customer_details = WC_Helper_Customer::get_customer_details();

		$customer = WC_Helper_Customer::create_mock_customer();

		// Create dummy product, and add the product to the cart.
		$product = WC_Helper_Product::create_simple_product();

		WC()->cart->add_to_cart( $product->id, 1 );

		// Customer is going with the Local Pickup option, and the store calculates tax based on the store location.

		WC_Helper_Customer::set_chosen_shipping_methods( array( 'local_pickup' ) );
		WC_Helper_Customer::set_tax_based_on( 'base' );
		$this->assertEquals( $customer->is_customer_outside_base(), false );

		// Customer is going with the Local Pickup option, and the store calculates tax based on the customer's billing address.

		WC_Helper_Customer::set_chosen_shipping_methods( array( 'local_pickup' ) );
		WC_Helper_Customer::set_tax_based_on( 'billing' );
		$this->assertEquals( $customer->is_customer_outside_base(), false );

		// Customer is going with the Free Shipping option, and the store calculates tax based on the customer's billing address.

		WC_Helper_Customer::set_chosen_shipping_methods( array( 'free_shipping' ) );
		WC_Helper_Customer::set_tax_based_on( 'billing' );		
		$this->assertEquals( $customer->is_customer_outside_base(), true );

		// Customer is going with the Free Shipping option, and the store calculates tax based on the store base location.

		WC_Helper_Customer::set_chosen_shipping_methods( array( 'free_shipping' ) );
		WC_Helper_Customer::set_tax_based_on( 'base' );		
		$this->assertEquals( $customer->is_customer_outside_base(), false );

		//Now reset the settings back to the way they were before this test

		WC_Helper_Customer::set_chosen_shipping_methods( $original_chosen_shipping_methods );
		WC_Helper_Customer::set_tax_based_on( $original_tax_based_on );
		WC_Helper_Customer::set_customer_details( $original_customer_details );
		
		// Clean up the cart
		WC()->cart->empty_cart();

		// Clean up product
		WC_Helper_Product::delete_product( $product->id );
	}
}