feat(test): add supportsShadowDom

Author: manucorporat

src/declarations/testing.ts

@@ -13,6 +13,16 @@ declare global {
        */
       toEqualHtml(expectHtml: string): void;
 
+      /**
+       * Compares HTML light DOKM only, but first normalizes the HTML so all
+       * whitespace, attribute order and css class order are
+       * the same. When given an element, it will compare
+       * the element's `outerHTML`. When given a Document Fragment,
+       * such as a Shadow Root, it'll compare its `innerHTML`.
+       * Otherwise it'll compare two strings representing HTML.
+       */
+      toEqualLightHtml(expectLightHtml: string): void;
+
       /**
        * When given an element, it'll compare the element's
        * `textContent`. Otherwise it'll compare two strings. This
@@ -488,7 +498,7 @@ export interface NewSpecPageOptions {
   hydrateClientSide?: boolean;
   hydrateServerSide?: boolean;
   referrer?: string;
-  serializedShadowDom?: boolean;
+  supportsShadowDom?: boolean;
   url?: string;
   userAgent?: string;
   autoApplyChanges?: boolean;

src/testing/spec-page.ts

@@ -28,7 +28,7 @@ export async function newSpecPage(opts: d.NewSpecPageOptions): Promise<d.SpecPag
   if (opts.hydrateServerSide) {
     platform.supportsShadowDom = false;
   } else {
-    if (opts.serializedShadowDom === false) {
+    if (opts.supportsShadowDom === false) {
       platform.supportsShadowDom = false;
     } else {
       platform.supportsShadowDom = true;