Fix/7.6.0 constructor injection upgrade bug

changelog/fix-7.6.0-constructor-injection-upgrade-bug

@@ -0,0 +1,5 @@
+Significance: patch
+Type: fix
+Comment: a known plugin upgrade issue fixed in the same release that the underlying code was released.
+
+

includes/admin/class-wc-rest-payments-orders-controller.php

@@ -47,28 +47,19 @@ class WC_REST_Payments_Orders_Controller extends WC_Payments_REST_Controller {
 	 */
 	private $order_service;
 
-	/**
-	 * WC_Payments_Token instance for working with customer tokens
-	 *
-	 * @var WC_Payments_Token_Service
-	 */
-	private $token_service;
-
 	/**
 	 * WC_Payments_REST_Controller constructor.
 	 *
 	 * @param WC_Payments_API_Client       $api_client       WooCommerce Payments API client.
 	 * @param WC_Payment_Gateway_WCPay     $gateway          WooCommerce Payments payment gateway.
 	 * @param WC_Payments_Customer_Service $customer_service Customer class instance.
 	 * @param WC_Payments_Order_Service    $order_service    Order Service class instance.
-	 * @param WC_Payments_Token_Service    $token_service    Token Service class instance.
 	 */
-	public function __construct( WC_Payments_API_Client $api_client, WC_Payment_Gateway_WCPay $gateway, WC_Payments_Customer_Service $customer_service, WC_Payments_Order_Service $order_service, WC_Payments_Token_Service $token_service ) {
+	public function __construct( WC_Payments_API_Client $api_client, WC_Payment_Gateway_WCPay $gateway, WC_Payments_Customer_Service $customer_service, WC_Payments_Order_Service $order_service ) {
 		parent::__construct( $api_client );
 		$this->gateway          = $gateway;
 		$this->customer_service = $customer_service;
 		$this->order_service    = $order_service;
-		$this->token_service    = $token_service;
 	}
 
 	/**
@@ -237,7 +228,7 @@ function_exists( 'wcs_get_subscriptions_for_order' ) &&
 										function_exists( 'wcs_is_manual_renewal_required' ) &&
 										wcs_order_contains_subscription( $order_id );
 				if ( $has_subscriptions ) {
-					$token = $this->token_service->add_payment_method_to_user( $generated_card, $order->get_user() );
+					$token = WC_Payments::get_token_service()->add_payment_method_to_user( $generated_card, $order->get_user() );
 					$this->gateway->add_token_to_order( $order, $token );
 					foreach ( wcs_get_subscriptions_for_order( $order ) as $subscription ) {
 						$subscription->set_payment_method( WC_Payment_Gateway_WCPay::GATEWAY_ID );

includes/class-wc-payments.php

@@ -992,7 +992,7 @@ public static function init_rest_api() {
 		$conn_tokens_controller->register_routes();
 
 		include_once WCPAY_ABSPATH . 'includes/admin/class-wc-rest-payments-orders-controller.php';
-		$orders_controller = new WC_REST_Payments_Orders_Controller( self::$api_client, self::get_gateway(), self::$customer_service, self::$order_service, self::$token_service );
+		$orders_controller = new WC_REST_Payments_Orders_Controller( self::$api_client, self::get_gateway(), self::$customer_service, self::$order_service );
 		$orders_controller->register_routes();
 
 		include_once WCPAY_ABSPATH . 'includes/admin/class-wc-rest-payments-fraud-outcomes-controller.php';
@@ -1325,6 +1325,26 @@ public static function get_order_service(): WC_Payments_Order_Service {
 		return self::$order_service;
 	}
 
+	/**
+	 * Returns the token service instance.
+	 *
+	 * @return WC_Payments_Token_Service
+	 */
+	public static function get_token_service(): WC_Payments_Token_Service {
+		return self::$token_service;
+	}
+
+	/**
+	 * Sets the token service instance. This is needed only for tests.
+	 *
+	 * @param WC_Payments_Token_Service $token_service Instance of WC_Payments_Token_Service.
+	 *
+	 * @return void
+	 */
+	public static function set_token_service( WC_Payments_Token_Service $token_service ) {
+		self::$token_service = $token_service;
+	}
+
 	/**
 	 * Sets the customer service instance. This is needed only for tests.
 	 *

tests/unit/admin/test-class-wc-rest-payments-orders-controller.php

@@ -49,6 +49,11 @@ class WC_REST_Payments_Orders_Controller_Test extends WCPAY_UnitTestCase {
 	 */
 	private $mock_token_service;
 
+	/**
+	 * @var WC_Payments_Token_Service
+	 */
+	private $original_token_service;
+
 	/**
 	 * @var string
 	 */
@@ -79,15 +84,21 @@ public function set_up() {
 			->setMethods( [ 'attach_intent_info_to_order' ] )
 			->getMock();
 
+		$this->original_token_service = WC_Payments::get_token_service();
+		WC_Payments::set_token_service( $this->mock_token_service );
 		$this->controller = new WC_REST_Payments_Orders_Controller(
 			$this->mock_api_client,
 			$this->mock_gateway,
 			$this->mock_customer_service,
 			$this->order_service,
-			$this->mock_token_service
 		);
 	}
 
+	public function tear_down() {
+		WC_Payments::set_token_service( $this->original_token_service );
+		parent::tear_down();
+	}
+
 	public function test_capture_terminal_payment_success() {
 		$order       = $this->create_mock_order();
 		$mock_intent = WC_Helper_Intention::create_intention(