message: add tests for TechDocsPage with custom header
diff: @@ -22,6 +22,7 @@ import {
  scmIntegrationsApiRef,
  } from '@backstage/integration-react';
  import { wrapInTestApp } from '@backstage/test-utils';
  +import { Header } from '@backstage/core-components';
  import {
  techdocsApiRef,
  TechDocsApi,
  @@ -107,4 +108,69 @@ describe('<TechDocsPage />', () => {
  expect(rendered.getByTestId('techdocs-content')).toBeInTheDocument();
  });
  });
  +
  + it('should render techdocs page with custom header', async () => {
  + useParams.mockReturnValue({
  + entityId: 'Component::backstage',
  + });
  +
  + const scmIntegrationsApi: ScmIntegrationsApi =
  + ScmIntegrationsApi.fromConfig(
  + new ConfigReader({
  + integrations: {},
  + }),
  + );
  + const techdocsApi: Partial<TechDocsApi> = {
  + getEntityMetadata: () =>
  + Promise.resolve({
  + apiVersion: 'v1',
  + kind: 'Component',
  + metadata: {
  + name: 'backstage',
  + },
  + }),
  + getTechDocsMetadata: () =>
  + Promise.resolve({
  + site_name: 'string',
  + site_description: 'string',
  + }),
  + };
  +
  + const techdocsStorageApi: Partial<TechDocsStorageApi> = {
  + getEntityDocs: (): Promise<string> => Promise.resolve('String'),
  + getBaseUrl: (): Promise<string> => Promise.resolve('String'),
  + getApiOrigin: (): Promise<string> => Promise.resolve('String'),
  + };
  + const searchApi = {
  + query: () =>
  + Promise.resolve({
  + results: [],
  + }),
  + };
  + const apiRegistry = ApiRegistry.from([
  + [scmIntegrationsApiRef, scmIntegrationsApi],
  + [techdocsApiRef, techdocsApi],
  + [techdocsStorageApiRef, techdocsStorageApi],
  + [searchApiRef, searchApi],
  + ]);
  +
  + await act(async () => {
  + const rendered = render(
  + wrapInTestApp(
  + <ApiProvider apis={apiRegistry}>
  + <TechDocsPage>
  + {({ techdocsMetadataValue }) => (
  + <Header
  + type="documentation"
  + title="A custom header"
  + subtitle={techdocsMetadataValue?.site_name}
  + />
  + )}
  + </TechDocsPage>
  + </ApiProvider>,
  + ),
  + );
  + expect(rendered.getByText('A custom header')).toBeInTheDocument();
  + });
  + });
  });
  