Need IBatchGet<T> interface for testing

[SARAVANA1501]

I would like to have following mocking, Since BatchGet<T> is concrete class, we are unable to mock and test the functionality.

var dynamoDbContext = new Mock<IDynamoDBContext>();
            dynamoDbContext.Setup(t => t.CreateBatchGet<TestModel>(It.IsAny<DynamoDBOperationConfig>()))
                .Returns(new Mock<BatchGet<TestModel>>().Object);
            var service = new TestService(dynamoDbContext.Object);

[SARAVANA1501]

@ashishdhingra any update on this?

[ashishdhingra]

Hi @SARAVANA1501,

Good afternoon.

BatchGet inherits from the abstract BatchGet class. So you should be able to mock BatchGet. Kindly refer article How to Unit Test an Abstract Class for details. Hope this helps.

Thanks,
Ashish

[Kralizek]

@ashishdhingra I wonder if your comment is really relevant. Because the IDynamoDBContext returns BatchGet<T> so if we were to use create a mock from BatchGet, it would be a sibling class of BatchGet<T> making it not usable for what @SARAVANA1501 is trying to achieve.

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We have noticed this issue has not received attention in 1 year. We will close this issue for now. If you think this is in error, please feel free to comment and reopen the issue.

[SARAVANA1501]

Commenting to keeps it open

[SARAVANA1501]

@ashishdhingra I would like to contribute on this

[96malhar]

Hello, we have been working on the V4 of the AWS SDK for .NET. We have added the ability to mock various DynamoDB operations by adding interfaces in both the Data Model mode and Document Model mode in DynamoDB.

Refer to this PR - #3450

Specifically for the BatchGet<T> class, it now implements the IBatchGet<T> interface which can be mocked inside unit tests.

This feature is available in the AWSSDK.DynamoDBv2 Version 4.0.0-preview.2

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