public async Task Test_Insert_First_Update_Delete()
{
var creating = DocumentClientTest.NewDocument();
var created = await _documentClient.InsertAsync(creating, CancellationToken.None);
DocumentClientTest.Test(creating, created);
var received = await _documentClient.FirstOrDefaultAsync <TestDocument>(
created.Id, created.PartitionId, CancellationToken.None);
DocumentClientTest.Test(created, received);
DocumentClientTest.Update(created);
var updated = await _documentClient.UpdateAsync(created, CancellationToken.None);
DocumentClientTest.Test(created, updated);
await _documentClient.DeleteAsync(updated.Id, updated.PartitionId, CancellationToken.None);
var deleted = await _documentClient.FirstOrDefaultAsync <TestDocument>(
updated.Id, updated.PartitionId, CancellationToken.None);
Assert.IsNull(deleted);
}
/// <summary>Receives a document from its persistence.</summary>
/// <typeparam name="TDocument">A type of a document.</typeparam>
/// <param name="documentClient">An object that provides a simple API to persistence of documents that inherits the <see cref="AzureFunctionsCustomBindingSample.CosmosDb.DocumentBase"/> class.</param>
/// <param name="query">An object that represents conditions to query a document.</param>
/// <param name="cancellationToken">A value that propagates notification that operations should be canceled.</param>
/// <returns>An object that represents an async operation.</returns>
public static Task <TDocument> FirstOrDefaultAsync <TDocument>(
this IDocumentClient documentClient,
IDocumentQuery query,
CancellationToken cancellationToken)
where TDocument : DocumentBase
{
if (documentClient == null)
{
throw new ArgumentNullException(nameof(documentClient));
}
if (query == null)
{
throw new ArgumentNullException(nameof(query));
}
return(documentClient.FirstOrDefaultAsync <TDocument>(
query.Id, query.PartitionId, cancellationToken));
}
