BatchWriteItemWithContext isn't implemented yet.

[sdkim81]

Hi all,

Dynamodb provides API which has 'WithContext' postfix.
This is for additional ability to pass a context and additional request parameter.

But there is no BatchWriteItemWithContext API in this project.

When I look over the other source code batch_get_item.go , both BatchGetItem and BatchGetItemWithContext have same body.

It seems to be pretty easy to add 'BatchWriteItemWithContext' which has same body of BatchWriteItem.

When I test with below code, it works well but I can't contribute to this project.

Will Somebody make PR for this?

func (e *MockDynamoDB) BatchWriteItemWithContext(ctx aws.Context, input *dynamodb.BatchWriteItemInput, opt ...request.Option) (*dynamodb.BatchWriteItemOutput, error) {
if len(e.dynaMock.BatchWriteItemExpect) > 0 {
x := e.dynaMock.BatchWriteItemExpect[0] //get first element of expectation

	if x.input != nil {
		if !reflect.DeepEqual(x.input, input.RequestItems) {
			return nil, fmt.Errorf("Expect input %+v but found input %+v", x.input, input.RequestItems)
		}
	}

	// delete first element of expectation
	e.dynaMock.BatchWriteItemExpect = append(e.dynaMock.BatchWriteItemExpect[:0], e.dynaMock.BatchWriteItemExpect[1:]...)

	return x.output, nil
}

return nil, fmt.Errorf("Batch Write Item Expectation Not Found")

}

[aultokped]

please just create the PR

[sdkim81]

#18

[gusaul]

merged