Function unwrappedImportProvidersFrom

packages/core/test/acceptance/di_spec.ts:84–91

(...sources: ImportProvidersSource[])

  getProvidersByToken(providers, ENVIRONMENT_INITIALIZER);

function unwrappedImportProvidersFrom(...sources: ImportProvidersSource[]): Provider[] {
  const providers = (importProvidersFrom(...sources) as unknown as InternalEnvironmentProviders)
    .ɵproviders;
  if (providers.some((provider) => 'ɵproviders' in provider)) {
    throw new Error(`Unexpected nested EnvironmentProviders in test`);
  }
  return providers as Provider[];
}

describe('importProvidersFrom', () => {
  // Set of tokens used in various tests.