Summary of all failing tests
FAIL src/declarative-shadow-dom/test.e2e.ts
  ● renderToString › hydrateDocument › can hydrate components with open shadow dom by default

    expect(received).toContain(expected) // indexOf

    Matcher error: received value must not be null nor undefined

    Received has value: null

      386 |         fullDocument: false,
      387 |       });
    > 388 |       expect(html).toContain('s-id="');
          |                    ^
      389 |       expect(html).toContain('shadowrootmode="open"');
      390 |     });
      391 |

      at Object.<anonymous> (src/declarative-shadow-dom/test.e2e.ts:388:20)

  ● renderToString › hydrateDocument › can hydrate components with scoped shadow dom

    expect(received).toContain(expected) // indexOf

    Matcher error: received value must not be null nor undefined

    Received has value: null

      395 |         fullDocument: false,
      396 |       });
    > 397 |       expect(html).toContain('s-id="');
          |                    ^
      398 |       expect(html).not.toContain('shadowrootmode="open"');
      399 |     });
      400 |   });

      at Object.<anonymous> (src/declarative-shadow-dom/test.e2e.[26:38.6]  screenshot, tests finished, passed: false in 16.88 s MEM: 2634.9MB
[26:38.6]  screenshot, completeTimespan started ... MEM: 2634.9MB
ts:397:20)