TechDocs: Fix frontend tests due to async apiOrigin function

plugins/techdocs/src/reader/components/TechDocsPage.test.tsx

@@ -57,6 +57,7 @@ describe('<TechDocsPage />', () => {
     const techdocsStorageApi: Partial<TechDocsStorageApi> = {
       getEntityDocs: (): Promise<string> => Promise.resolve('String'),
       getBaseUrl: (): Promise<string> => Promise.resolve('String'),
+      getApiOrigin: (): Promise<string> => Promise.resolve('String'),
     };
 
     const apiRegistry = ApiRegistry.from([

plugins/techdocs/src/reader/transformers/addBaseUrl.test.ts

@@ -21,7 +21,7 @@ import { TechDocsStorage } from '../../api';
 const DOC_STORAGE_URL = 'https://example-host.storage.googleapis.com';
 
 const techdocsStorageApi: TechDocsStorage = {
-  getBaseUrl: () => new Promise(resolve => resolve(DOC_STORAGE_URL)),
+  getBaseUrl: jest.fn(() => Promise.resolve(DOC_STORAGE_URL)),
   getEntityDocs: () => new Promise(resolve => resolve('yes!')),
 };