Migrate deprecated node matcher tests to playwright (#42759)

Co-authored-by: pavanpatil1 <=>

test/e2e/specs/editor/plugins/__snapshots__/Deprecated-Node-Matcher-should-insert-block-with-children-source-1-chromium.txt

@@ -0,0 +1,3 @@
+<!-- wp:deprecated-children-matcher -->
+<p class="wp-block-deprecated-children-matcher">test<br/><strong>a</strong></p>
+<!-- /wp:deprecated-children-matcher -->

test/e2e/specs/editor/plugins/__snapshots__/Deprecated-Node-Matcher-should-insert-block-with-node-source-1-chromium.txt

@@ -0,0 +1,3 @@
+<!-- wp:deprecated-node-matcher -->
+<blockquote class="wp-block-deprecated-node-matcher"><p>test</p><p></p></blockquote>
+<!-- /wp:deprecated-node-matcher -->

test/e2e/specs/editor/plugins/deprecated-node-matcher.spec.js

@@ -0,0 +1,55 @@
+/**
+ * WordPress dependencies
+ */
+/**
+ * WordPress dependencies
+ */
+const { test, expect } = require( '@wordpress/e2e-test-utils-playwright' );
+
+test.describe( 'Deprecated Node Matcher', () => {
+	test.beforeAll( async ( { requestUtils } ) => {
+		await requestUtils.activatePlugin(
+			'gutenberg-test-deprecated-node-matcher'
+		);
+	} );
+
+	test.beforeEach( async ( { admin } ) => {
+		await admin.createNewPost();
+	} );
+
+	test.afterAll( async ( { requestUtils } ) => {
+		await requestUtils.deactivatePlugin(
+			'gutenberg-test-deprecated-node-matcher'
+		);
+	} );
+
+	test( 'should insert block with node source', async ( {
+		page,
+		editor,
+	} ) => {
+		// await insertBlock( 'Deprecated Node Matcher' );
+		await editor.insertBlock( { name: 'core/deprecated-node-matcher' } );
+		await page.keyboard.type( 'test' );
+		await page.keyboard.press( 'Enter' );
+		expect( await editor.getEditedPostContent() ).toMatchSnapshot();
+	} );
+
+	test( 'should insert block with children source', async ( {
+		page,
+		editor,
+		pageUtils,
+	} ) => {
+		// await insertBlock( 'Deprecated Children Matcher' );
+		await editor.insertBlock( {
+			name: 'core/deprecated-children-matcher',
+		} );
+		await page.keyboard.type( 'test' );
+		await page.keyboard.press( 'Enter' );
+		await page.keyboard.type( 'a' );
+		await page.keyboard.down( 'Shift' );
+		await page.keyboard.press( 'ArrowLeft' );
+		await page.keyboard.up( 'Shift' );
+		await pageUtils.pressKeyWithModifier( 'primary', 'b' );
+		expect( await editor.getEditedPostContent() ).toMatchSnapshot();
+	} );
+} );