Create 2e2 tests for Cross-Sells block (https://github.com/woocommerce/woocommerce-blocks/pull/6983)

* Create Cross-Sells product list

* Show “Read more” button for out-of-stock cross-sells products

* Update assets/js/blocks/cart/inner-blocks/cart-cross-sells-products/block.tsx

Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com>

* Update assets/js/blocks/cart/cart-cross-sells-product-list/index.tsx

Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com>

* Remove obsolete isLoading and placeholderRows

* Fix TS errors

* Rename crossSellsProduct to product

* Fix critical error

* Create 2e2 tests for Cross-Sells block

Co-authored-by: Thomas Roberts <5656702+opr@users.noreply.github.com>

plugins/woocommerce-blocks/.prettierignore

@@ -1,2 +1,3 @@
+*.json
 *.scss
 *.yml

plugins/woocommerce-blocks/package.json

@@ -53,8 +53,8 @@
 		"lint:js:report": "npm run lint:js -- --output-file eslint_report.json --ext=js,ts,tsx --format json",
 		"lint:js-fix": "eslint assets/js --ext=js,jsx,ts,tsx --fix",
 		"lint:md:docs": "wp-scripts lint-md-docs",
-		"lint:php": "composer run-script phpcs ./src",
+		"lint:php": "composer run-script phpcs ./src && composer run-script phpcs ./tests/mocks/woo-test-helper",
-		"lint:php-fix": "composer run-script phpcbf ./src",
+		"lint:php-fix": "composer run-script phpcbf ./src && composer run-script phpcbf ./tests/mocks/woo-test-helper",
 		"package-plugin": "rimraf woocommerce-gutenberg-products-block.zip && ./bin/build-plugin-zip.sh",
 		"package-plugin:dev": "rimraf woocommerce-gutenberg-products-block.zip && ./bin/build-plugin-zip.sh -d",
 		"package-plugin:zip-only": "rimraf woocommerce-gutenberg-products-block.zip && ./bin/build-plugin-zip.sh -z",

plugins/woocommerce-blocks/tests/e2e/specs/backend/cart.test.js

@@ -43,6 +43,12 @@ const emptyCartBlock = {
 	class: '.wp-block-woocommerce-empty-cart-block',
 };
 
+const crossSellsBlock = {
+	name: 'Cart Cross-Sells block',
+	slug: 'woocommerce/cart-cross-sells-products-block',
+	class: '.wp-block-woocommerce-cart-cross-sells-products-block',
+};
+
 if ( process.env.WOOCOMMERCE_BLOCKS_PHASE < 2 ) {
 	// eslint-disable-next-line jest/no-focused-tests, jest/expect-expect
 	test.only( `skipping ${ block.name } tests`, () => {} );
@@ -63,6 +69,7 @@ describe( `${ block.name } Block`, () => {
 		it( 'renders without crashing', async () => {
 			await expect( page ).toRenderBlock( block );
 			await expect( page ).toRenderBlock( filledCartBlock );
+			await expect( page ).toRenderBlock( crossSellsBlock );
 			await expect( page ).toRenderBlock( emptyCartBlock );
 		} );
 

plugins/woocommerce-blocks/tests/e2e/specs/shopper/cart-checkout/cart.test.js

@@ -1,7 +1,12 @@
 /**
  * Internal dependencies
  */
-import { shopper, SIMPLE_VIRTUAL_PRODUCT_NAME } from '../../../../utils';
+import {
+	shopper,
+	SIMPLE_VIRTUAL_PRODUCT_NAME,
+	SIMPLE_PHYSICAL_PRODUCT_NAME,
+} from '../../../../utils';
+import { BASE_URL } from '../../../../utils/constants';
 
 if ( process.env.WOOCOMMERCE_BLOCKS_PHASE < 2 ) {
 	// Skips all the tests if it's a WooCommerce Core process environment.
@@ -11,6 +16,9 @@ if ( process.env.WOOCOMMERCE_BLOCKS_PHASE < 2 ) {
 
 describe( 'Shopper → Cart', () => {
 	beforeAll( async () => {
+		await page.goto( `${ BASE_URL }/?setup_cross_sells` );
+		// eslint-disable-next-line jest/no-standalone-expect
+		await expect( page ).toMatch( 'Cross-Sells products set up.' );
 		await shopper.block.emptyCart();
 	} );
 
@@ -97,6 +105,22 @@ describe( 'Shopper → Cart', () => {
 		await shopper.block.productIsInCart( SIMPLE_VIRTUAL_PRODUCT_NAME, 4 );
 	} );
 
+	it( 'User can see Cross-Sells products block', async () => {
+		await shopper.block.emptyCart();
+		await shopper.goToShop();
+		await shopper.addToCartFromShopPage( SIMPLE_PHYSICAL_PRODUCT_NAME );
+		await shopper.block.goToCart();
+		await expect( page ).toMatchElement(
+			'.wp-block-woocommerce-cart-cross-sells-block'
+		);
+		await shopper.block.addCrossSellsProductToCart();
+		// To avoid flakiness: Wait until the cart contains two entries.
+		await page.waitForSelector(
+			'.wp-block-woocommerce-cart-line-items-block tr:nth-child(2)'
+		);
+		await shopper.block.productIsInCart( '32GB USB Stick', 1 );
+	} );
+
 	it( 'User can proceed to checkout', async () => {
 		await shopper.goToShop();
 		await shopper.addToCartFromShopPage( SIMPLE_VIRTUAL_PRODUCT_NAME );

plugins/woocommerce-blocks/tests/mocks/woo-test-helper/woo-test-helper.php

@@ -28,7 +28,7 @@ function woocommerce_setup_terms_and_privacy_page() {
 		exit( 'Terms & Privacy pages set up.' );
 	}
 
-  // phpcs:disable WordPress.Security.NonceVerification.Recommended
+  	// phpcs:disable WordPress.Security.NonceVerification.Recommended
 	if ( isset( $_GET['teardown_terms_and_privacy'] ) ) {
 		unpublish_privacy_page();
 		delete_terms_page();
@@ -94,3 +94,32 @@ function delete_terms_page() {
 	$data  = array( 'post_title' => 'Terms & Conditions' );
 	$wpdb->delete( $table, $data );
 }
+
+/**
+ * Define URL endpoint for setting up cross-sells products.
+ */
+function woocommerce_setup_cross_sells_products() {
+	// phpcs:disable WordPress.Security.NonceVerification.Recommended
+	if ( isset( $_GET['setup_cross_sells'] ) ) {
+		setup_cross_sells();
+		exit( 'Cross-Sells products set up.' );
+	}
+}
+add_action( 'init', 'woocommerce_setup_cross_sells_products' );
+
+/**
+ * Set up Cross-Sells products.
+ */
+function setup_cross_sells() {
+	global $wpdb;
+
+	// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared
+	$select     = "SELECT * FROM {$wpdb->prefix}posts WHERE post_title = '128GB USB Stick' AND post_status = 'publish' AND post_type = 'product'";
+	$id_product = $wpdb->get_row( $select );
+
+	// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared
+	$select        = "SELECT * FROM {$wpdb->prefix}posts WHERE post_title = '32GB USB Stick' AND post_status = 'publish' AND post_type = 'product'";
+	$id_cross_sell = $wpdb->get_row( $select );
+
+	add_post_meta( $id_product->ID, '_crosssell_ids', $id_cross_sell->ID );
+}

plugins/woocommerce-blocks/tests/utils/shopper.js

@@ -311,6 +311,15 @@ export const shopper = {
 			] );
 		},
 
+		addCrossSellsProductToCart: async () => {
+			await page.waitForSelector(
+				'.wc-block-components-product-add-to-cart-button'
+			);
+			expect( page ).toClick(
+				'.wc-block-components-product-add-to-cart-button'
+			);
+		},
+
 		selectAndVerifyShippingOption: async (
 			shippingName,
 			shippingPrice