add test

src/client/client-window.ts

@@ -6,7 +6,7 @@ export const win = typeof window !== 'undefined' ? window : ({} as Window);
 
 export const doc = win.document || ({
   head: {},
-  querySelectorAll: () => [] as unknown as NodeListOf<Element>,
+  querySelectorAll: () => [] as unknown[],
 } as unknown as Document);
 
 export const H = ((win as any).HTMLElement || (class {} as any)) as HTMLElement;

test/wdio/package.json

@@ -11,8 +11,9 @@
     "build.prerender": "node ../../bin/stencil build --config prerender.stencil.config.ts --prerender --debug && node ./test-prerender/prerender.js && node ./test-prerender/no-script-build.js",
     "build.invisible-prehydration": "node ../../bin/stencil build --debug --es5 --config invisible-prehydration.stencil.config.ts",
     "build.no-external-runtime": "node ../../bin/stencil build --debug --es5 --config no-external-runtime.stencil.config.ts",
-    "test": "run-s build wdio",
-    "wdio": "wdio run ./wdio.conf.ts"
+    "test": "run-s build wdio end-to-end",
+    "wdio": "wdio run ./wdio.conf.ts",
+    "end-to-end": "node ./test-end-to-end-import.mjs"
   },
   "devDependencies": {
     "@stencil/core": "file:../..",

test/wdio/test-end-to-end-import.mjs

@@ -0,0 +1,9 @@
+import assert from 'node:assert';
+
+import { AttributeBasicRoot, defineCustomElement } from './test-components/attribute-basic-root.js';
+
+console.log(`🧪 Validate capability to import Stencil dist-custom-elements output target`);
+assert.equal(typeof AttributeBasicRoot, 'function');
+assert.equal(typeof defineCustomElement, 'function');
+console.log(`✅  Success!`);
+