Function replaceMetadata

packages/core/test/acceptance/hmr_spec.ts:2384–2401

(type: Type<unknown>, metadata: Component)

  const CREATED_INITIALLY_MARKER = '__ngCreatedInitially__';

  function replaceMetadata(type: Type<unknown>, metadata: Component) {
    ɵɵreplaceMetadata(
      type,
      () => {
        // TODO: the content of this callback is a hacky workaround to invoke the compiler in a test.
        // in reality the callback will be generated by the compiler to be something along the lines
        // of `MyComp[ɵcmp] = /* metadata */`.
        // TODO: in reality this callback should also include `setClassMetadata` and
        // `setClassDebugInfo`.
        (type as any)[ɵNG_COMP_DEF] = null;
        compileComponent(type, metadata);
      },
      [angularCoreEnv],
      [],
      null,
      '',
    );
  }

  function expectHTML(element: HTMLElement, expectation: string) {
    const actual = element.innerHTML