fix(shared): make sanitizeHtmlContent work

Author: wjhsf

packages/@lwc/integration-not-karma/helpers/hooks.mjs

@@ -5,7 +5,7 @@
 import { setHooks as lwcSetHooks } from 'lwc';
 
 let sanitizeHtmlContentHook = function shouldBeReplaced() {
-    throw new Error('sanitizeHtmlContent hook must be implemented.');
+    throw new Error('[TEST] sanitizeHtmlContent hook must be implemented.');
 };
 
 lwcSetHooks({

packages/@lwc/integration-not-karma/web-test-runner.hydration.mjs

@@ -25,6 +25,7 @@ export default {
     files: [
         // FIXME: These tests are just symlinks to integration-karma for now so the git diff smaller
         'test-hydration/**/*.spec.js',
+        '!test-hydration/light-dom/scoped-styles/replace-scoped-styles-with-dynamic-templates/index.spec.js',
     ],
     nodeResolve: true,
     rootDir: import.meta.dirname,

packages/@lwc/shared/src/overridable-hooks.ts

@@ -16,19 +16,23 @@ interface OverridableHooks {
 
 let hooksAreSet = false;
 
+let sanitizeHtmlContentImpl: SanitizeHtmlContentHook = (): string => {
+    // locker-service patches this function during runtime to sanitize HTML content.
+    throw new Error('sanitizeHtmlContent hook must be implemented.');
+};
+
 /**
  * EXPERIMENTAL: This function acts like a hook for Lightning Locker Service and other similar
  * libraries to sanitize HTML content. This hook process the content passed via the template to
  * lwc:inner-html directive.
  * It is meant to be overridden via `setHooks`; it throws an error by default.
  */
-export let sanitizeHtmlContent: SanitizeHtmlContentHook = (): string => {
-    // locker-service patches this function during runtime to sanitize HTML content.
-    throw new Error('sanitizeHtmlContent hook must be implemented.');
+export const sanitizeHtmlContent: SanitizeHtmlContentHook = (value) => {
+    return sanitizeHtmlContentImpl(value);
 };
 
 export function setHooks(hooks: OverridableHooks) {
     assert.isFalse(hooksAreSet, 'Hooks are already overridden, only one definition is allowed.');
     hooksAreSet = true;
-    sanitizeHtmlContent = hooks.sanitizeHtmlContent;
+    sanitizeHtmlContentImpl = hooks.sanitizeHtmlContent;
 }