public async Task InitializeAsync() { var fhirStoredProcs = typeof(IFhirStoredProcedure).Assembly .GetTypes() .Where(x => !x.IsAbstract && typeof(IFhirStoredProcedure).IsAssignableFrom(x)) .ToArray() .Select(type => (IFhirStoredProcedure)Activator.CreateInstance(type)); var optionsMonitor = Substitute.For <IOptionsMonitor <CosmosCollectionConfiguration> >(); optionsMonitor.Get(CosmosDb.Constants.CollectionConfigurationName).Returns(_cosmosCollectionConfiguration); var updaters = new IFhirCollectionUpdater[] { new FhirCollectionSettingsUpdater(_cosmosDataStoreConfiguration, optionsMonitor, NullLogger <FhirCollectionSettingsUpdater> .Instance), new FhirStoredProcedureInstaller(fhirStoredProcs), }; var dbLock = new CosmosDbDistributedLockFactory(Substitute.For <Func <IScoped <IDocumentClient> > >(), NullLogger <CosmosDbDistributedLock> .Instance); var upgradeManager = new FhirCollectionUpgradeManager(updaters, _cosmosDataStoreConfiguration, optionsMonitor, dbLock, NullLogger <FhirCollectionUpgradeManager> .Instance); IDocumentClientTestProvider testProvider = new DocumentClientReadWriteTestProvider(); var fhirRequestContextAccessor = new FhirRequestContextAccessor(); var documentClientInitializer = new FhirDocumentClientInitializer(testProvider, fhirRequestContextAccessor, NullLogger <FhirDocumentClientInitializer> .Instance); _documentClient = documentClientInitializer.CreateDocumentClient(_cosmosDataStoreConfiguration); var fhirCollectionInitializer = new CollectionInitializer(_cosmosCollectionConfiguration.CollectionId, _cosmosDataStoreConfiguration, _cosmosCollectionConfiguration.InitialCollectionThroughput, upgradeManager, NullLogger <CollectionInitializer> .Instance); // Cosmos DB emulators throws errors when multiple collections are initialized concurrently. // Use the semaphore to only allow one initialization at a time. await CollectionInitializationSemaphore.WaitAsync(); try { await documentClientInitializer.InitializeDataStore(_documentClient, _cosmosDataStoreConfiguration, new List <ICollectionInitializer> { fhirCollectionInitializer }); } finally { CollectionInitializationSemaphore.Release(); } var cosmosDocumentQueryFactory = new FhirCosmosDocumentQueryFactory(Substitute.For <IFhirRequestContextAccessor>(), NullFhirDocumentQueryLogger.Instance); var documentClient = new NonDisposingScope(_documentClient); _fhirDataStore = new CosmosFhirDataStore( () => documentClient, _cosmosDataStoreConfiguration, optionsMonitor, cosmosDocumentQueryFactory, new RetryExceptionPolicyFactory(_cosmosDataStoreConfiguration), NullLogger <CosmosFhirDataStore> .Instance, new Stu3ModelInfoProvider()); _fhirOperationDataStore = new CosmosFhirOperationDataStore( () => documentClient, _cosmosDataStoreConfiguration, optionsMonitor, new RetryExceptionPolicyFactory(_cosmosDataStoreConfiguration), NullLogger <CosmosFhirOperationDataStore> .Instance); _fhirStorageTestHelper = new CosmosDbFhirStorageTestHelper( _documentClient, UriFactory.CreateDocumentCollectionUri(_cosmosDataStoreConfiguration.DatabaseId, _cosmosCollectionConfiguration.CollectionId)); }