E2E tests for Product Archive Template and Legacy Block (https://github.com/woocommerce/woocommerce-blocks/pull/5748)

Also:
* Refactors the function to add a custom paragraph
* Add front-end test for archive template
* Use WordPress data to guarantee block presence
* Use WordPress data instead of selectors to match blocks

plugins/woocommerce-blocks/tests/e2e/specs/backend/__snapshots__/site-editing-templates.test.js.snap

@@ -1,5 +1,15 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
+exports[`Store Editing Templates Product Archive block template should contain the "WooCommerce Product Archive Block" legacy template 1`] = `
+"<!-- wp:template-part {\\"slug\\":\\"header\\",\\"theme\\":\\"emptytheme\\"} /-->
+
+<!-- wp:group {\\"layout\\":{\\"inherit\\":true}} -->
+<div class=\\"wp-block-group\\"><!-- wp:woocommerce/legacy-template {\\"template\\":\\"archive-product\\"} /--></div>
+<!-- /wp:group -->
+
+<!-- wp:template-part {\\"slug\\":\\"footer\\",\\"theme\\":\\"emptytheme\\"} /-->"
+`;
+
 exports[`Store Editing Templates Single Product block template should contain the "WooCommerce Single Product Block" legacy template 1`] = `
 "<!-- wp:template-part {\\"slug\\":\\"header\\",\\"theme\\":\\"emptytheme\\"} /-->
 

plugins/woocommerce-blocks/tests/e2e/specs/backend/site-editing-templates.test.js

@@ -1,3 +1,5 @@
+import { URL } from 'url';
+
 import {
 	activateTheme,
 	canvas,
@@ -11,6 +13,7 @@ import {
 	visitPostOfType,
 } from '@woocommerce/blocks-test-utils';
 import {
+	BASE_URL,
 	DEFAULT_TIMEOUT,
 	filterCurrentBlocks,
 	getAllTemplates,
@@ -19,6 +22,22 @@ import {
 	waitForCanvas,
 } from '../../utils';
 
+async function visitTemplateAndAddCustomParagraph(
+	templateSlug,
+	customText = CUSTOMIZED_STRING
+) {
+	const templateQuery = addQueryArgs( '', {
+		postId: `woocommerce/woocommerce//${ templateSlug }`,
+		postType: 'wp_template',
+	} );
+
+	await goToSiteEditor( templateQuery );
+	await waitForCanvas();
+	await insertBlock( 'Paragraph' );
+	await page.keyboard.type( customText );
+	await saveTemplate();
+}
+
 function blockSelector( id ) {
 	return `[data-type="${ id }"]`;
 }
@@ -38,6 +57,14 @@ function legacyBlockSelector( title ) {
 }
 
 const BLOCK_DATA = {
+	'archive-product': {
+		attributes: {
+			placeholder: 'archive-product',
+			template: 'archive-product',
+			title: 'WooCommerce Product Grid Block',
+		},
+		name: 'woocommerce/legacy-template',
+	},
 	'single-product': {
 		attributes: {
 			placeholder: 'single-product',
@@ -51,6 +78,7 @@ const BLOCK_DATA = {
 const SELECTORS = {
 	blocks: {
 		paragraph: blockSelector( 'core/paragraph' ),
+		productArchive: legacyBlockSelector( 'WooCommerce Product Grid Block' ),
 		singleProduct: legacyBlockSelector(
 			'WooCommerce Single Product Block'
 		),
@@ -121,18 +149,9 @@ describe( 'Store Editing Templates', () => {
 				hasActions: true,
 			};
 
-			const templateQuery = addQueryArgs( '', {
+			await visitTemplateAndAddCustomParagraph( 'single-product' );
-				postId: 'woocommerce/woocommerce//single-product',
-				postType: 'wp_template',
-			} );
 
-			await goToSiteEditor( templateQuery );
+			await goToSiteEditor( 'postType=wp_template' );
-			await waitForCanvas();
-			await insertBlock( 'Paragraph' );
-			await page.keyboard.type( CUSTOMIZED_STRING );
-			await saveTemplate();
-
-			await goToSiteEditor( '?postType=wp_template' );
 			const templates = await getAllTemplates();
 
 			try {
@@ -177,4 +196,99 @@ describe( 'Store Editing Templates', () => {
 			} );
 		} );
 	} );
+
+	describe( 'Product Archive block template', () => {
+		it( 'default template from WooCommerce Blocks is available on an FSE theme', async () => {
+			const EXPECTED_TEMPLATE = defaultTemplateProps( 'Product Archive' );
+
+			await goToSiteEditor( '?postType=wp_template' );
+
+			const templates = await getAllTemplates();
+
+			try {
+				expect( templates ).toContainEqual( EXPECTED_TEMPLATE );
+			} catch ( ok ) {
+				// Depending on the speed of the execution and whether Chrome is headless or not
+				// the id might be parsed or not
+
+				expect( templates ).toContainEqual( {
+					...EXPECTED_TEMPLATE,
+					addedBy: WOOCOMMERCE_PARSED_ID,
+				} );
+			}
+		} );
+
+		it( 'should contain the "WooCommerce Product Archive Block" legacy template', async () => {
+			const templateQuery = addQueryArgs( '', {
+				postId: 'woocommerce/woocommerce//archive-product',
+				postType: 'wp_template',
+			} );
+
+			await goToSiteEditor( templateQuery );
+			await waitForCanvas();
+
+			const [ legacyBlock ] = await filterCurrentBlocks(
+				( block ) => block.name === BLOCK_DATA[ 'archive-product' ].name
+			);
+
+			expect( legacyBlock.attributes.template ).toBe(
+				BLOCK_DATA[ 'archive-product' ].attributes.template
+			);
+			expect( await getCurrentSiteEditorContent() ).toMatchSnapshot();
+		} );
+
+		it( 'should show the action menu if the template has been customized by the user', async () => {
+			const EXPECTED_TEMPLATE = {
+				...defaultTemplateProps( 'Product Archive' ),
+				hasActions: true,
+			};
+
+			await visitTemplateAndAddCustomParagraph( 'archive-product' );
+
+			await goToSiteEditor( 'postType=wp_template' );
+			const templates = await getAllTemplates();
+
+			try {
+				expect( templates ).toContainEqual( EXPECTED_TEMPLATE );
+			} catch ( ok ) {
+				// Depending on the speed of the execution and whether Chrome is headless or not
+				// the id might be parsed or not
+
+				expect( templates ).toContainEqual( {
+					...EXPECTED_TEMPLATE,
+					addedBy: WOOCOMMERCE_PARSED_ID,
+				} );
+			}
+		} );
+
+		it( 'should preserve and correctly show the user customization on the back-end', async () => {
+			const templateQuery = addQueryArgs( '', {
+				postId: 'woocommerce/woocommerce//archive-product',
+				postType: 'wp_template',
+			} );
+
+			await goToSiteEditor( templateQuery );
+			await waitForCanvas();
+
+			await expect( canvas() ).toMatchElement(
+				SELECTORS.blocks.paragraph,
+				{ text: CUSTOMIZED_STRING, timeout: DEFAULT_TIMEOUT }
+			);
+		} );
+
+		it( 'should show the user customization on the front-end', async () => {
+			await page.goto( new URL( '/?post_type=product', BASE_URL ) );
+			const exampleProductName = 'Woo Single #1';
+
+			await visitPostOfType( exampleProductName, 'product' );
+			const permalink = await getNormalPagePermalink();
+
+			await page.goto( permalink );
+
+			await expect( page ).toMatchElement( 'p', {
+				text: CUSTOMIZED_STRING,
+				timeout: DEFAULT_TIMEOUT,
+			} );
+		} );
+	} );
 } );

plugins/woocommerce-blocks/tests/e2e/specs/frontend/legacy-template-blocks.test.js

@@ -0,0 +1,62 @@
+import { URL } from 'url';
+import { activateTheme } from '@wordpress/e2e-test-utils';
+
+import { BASE_URL } from '../../utils';
+
+const SELECTORS = {
+	productArchivePage: {
+		paginationUI: '.woocommerce-pagination',
+		productContainers: '.products .product',
+		productsList: '.products',
+		resultsCount: '.woocommerce-result-count',
+	},
+};
+
+describe( 'Legacy Template blocks', () => {
+	beforeAll( async () => {
+		await activateTheme( 'emptytheme' );
+	} );
+
+	afterAll( async () => {
+		await activateTheme( 'twentytwentyone' );
+	} );
+
+	describe( 'Product Archive block', () => {
+		it( 'renders a list of products with their count and pagination', async () => {
+			const { productArchivePage } = SELECTORS;
+
+			await page.goto( new URL( '/?post_type=product', BASE_URL ) );
+
+			await page.waitForSelector( productArchivePage.productsList );
+			await page.waitForSelector( productArchivePage.resultsCount );
+
+			const { displayedCount, shouldHavePaginationUI } = await page.$eval(
+				productArchivePage.resultsCount,
+				( $el ) => {
+					const resultsCountRegEx = /1–(\d+)|\d+/;
+					const matches = $el.textContent.match( resultsCountRegEx );
+
+					// Depending on pagination, string can be either:
+					// a) 'Showing x–y of z results'
+					// b) 'Showing all x results'
+					return {
+						displayedCount: matches[ 1 ] || matches[ 0 ],
+						shouldHavePaginationUI: !! matches[ 1 ],
+					};
+				}
+			);
+
+			if ( shouldHavePaginationUI ) {
+				await expect( page ).toMatchElement(
+					productArchivePage.paginationUI
+				);
+			}
+
+			const $productElements = await page.$$(
+				productArchivePage.productContainers
+			);
+
+			expect( $productElements ).toHaveLength( Number( displayedCount ) );
+		} );
+	} );
+} );

plugins/woocommerce-blocks/tests/e2e/utils.js

@@ -1,6 +1,7 @@
 /**
  * External dependencies
  */
+import config from 'config';
 import {
 	disableSiteEditorWelcomeGuide,
 	openGlobalBlockInserter,
@@ -25,6 +26,7 @@ import { elementExists, getTextContent } from './page-utils';
  * @typedef {{ addedBy: string, hasActions: boolean, templateTitle: string }} TemplateTableItem
  */
 
+export const BASE_URL = config.get( 'url' );
 export const DEFAULT_TIMEOUT = 30000;
 
 const SELECTORS = {