Mocking a specific command only

Apologies if I’m missing something obvious here but is there a way for me to only mock a specific command and for the client to use the real behaviour of the client of all the other commands? For a bit of context, I have a bunch of tests that run against dynamodb-local. I am trying to test a function that uses the batchWrite command but the function I’m testing makes other calls to dynamo before that. I would like to only mock the batchWrite function and allow the other commands to pass through to the local DB using the actual SDK. Is this possible?

[m-radzikowski]

You can access the underlying Sinon stub with:

mockClient.send

There is a stub.callThrough() method:

Causes the original method wrapped into the stub to be called when none of the conditional stubs are matched.

So you can try something like this:

mockClient.on(BatchWriteItemCommand).resolves({ ... }).
mockClient.send.callThrough();

No guarantee it will work, although please let me know if it does (or not).

[svozza]

That worked perfectly. Thanks for the prompt reply and moreover, thanks for the great library!