Migrate 'iframed block editor settings styles' tests to Playwright (#…

…55014)

* Migrate 'iframed block editor settings styles' tests to Playwright
* Remove old test file
* Missing comments

test/e2e/specs/editor/plugins/iframed-enqueue-block-editor-settings.spec.js

@@ -0,0 +1,99 @@
+/**
+ * WordPress dependencies
+ */
+const { test, expect } = require( '@wordpress/e2e-test-utils-playwright' );
+
+test.describe( 'iframed block editor settings styles', () => {
+	test.beforeAll( async ( { requestUtils } ) => {
+		await requestUtils.activatePlugin(
+			'gutenberg-test-iframed-enqueue-block-editor-settings'
+		);
+	} );
+
+	test.beforeEach( async ( { admin } ) => {
+		await admin.createNewPost();
+	} );
+
+	test.afterAll( async ( { requestUtils } ) => {
+		await requestUtils.deactivatePlugin(
+			'gutenberg-test-iframed-enqueue-block-editor-settings'
+		);
+	} );
+
+	test( 'should load styles added through block editor settings', async ( {
+		editor,
+		page,
+	} ) => {
+		const defaultBlock = editor.canvas.getByRole( 'button', {
+			name: 'Add default block',
+		} );
+
+		// Expect a red border (added in PHP).
+		await expect( defaultBlock ).toHaveCSS(
+			'border-color',
+			'rgb(255, 0, 0)'
+		);
+
+		await page.evaluate( () => {
+			const settings = window.wp.data
+				.select( 'core/editor' )
+				.getEditorSettings();
+			window.wp.data.dispatch( 'core/editor' ).updateEditorSettings( {
+				...settings,
+				styles: [
+					...settings.styles,
+					{
+						css: 'p { border-width: 2px; }',
+						__unstableType: 'plugin',
+					},
+				],
+			} );
+		} );
+
+		// Expect a 2px border (added in JS).
+		await expect( defaultBlock ).toHaveCSS( 'border-width', '2px' );
+	} );
+
+	test( 'should load theme styles added through block editor settings', async ( {
+		editor,
+		page,
+	} ) => {
+		const defaultBlock = editor.canvas.getByRole( 'button', {
+			name: 'Add default block',
+		} );
+
+		await page.evaluate( () => {
+			// Make sure that theme styles are added even if the theme styles
+			// preference is off.
+			window.wp.data
+				.dispatch( 'core/edit-post' )
+				.toggleFeature( 'themeStyles' );
+			const settings = window.wp.data
+				.select( 'core/editor' )
+				.getEditorSettings();
+			window.wp.data.dispatch( 'core/editor' ).updateEditorSettings( {
+				...settings,
+				styles: [
+					...settings.styles,
+					{
+						css: 'p { border-width: 2px; }',
+						__unstableType: 'theme',
+					},
+				],
+			} );
+		} );
+
+		// Expect a 1px border because theme styles are disabled.
+		await expect( defaultBlock ).toHaveCSS( 'border-width', '1px' );
+
+		await page.evaluate( () => {
+			// Now enable theme styles.
+			window.wp.data
+				.dispatch( 'core/edit-post' )
+				.toggleFeature( 'themeStyles' );
+		} );
+
+		// Expect a 2px border because theme styles are enabled.
+		await expect( defaultBlock ).toHaveCSS( 'border-width', '2px' );
+	} );
+} );