AWS DynamoDB mock always matching

Question

I am mocking DynamoDB query using aws-sdk-mock. It seems what ever query params I pass it will always match. For example looking at the implementation:

const AWS = require("aws-sdk");
...
const dynamoDB = new AWS.DynamoDB.DocumentClient();
await dynamoDB
        .query({
            TableName: dynamoDBTableName,
            IndexName: gsiIndexName,
            KeyConditionExpression: "active = :active and reference_id = :ref_id",
            ExpressionAttributeValues: {
                ":ref_id": referenceID,
                ":active": 1,
            },
        })
        .promise()
        .then((returnData) => (data = returnData))
        .catch(console.error);

And my test file mocks this call like so:

const dynamoDBQueryParams = {
        TableName: "TABLE_NAME",
        IndexName: "INDEX_NAME",
        KeyConditionExpression: "active = :active and reference_id = :ref_id",
        ExpressionAttributeValues: {
            ":ref_id": event.pathParameters.referenceDataID,
            ":active": 1,
        },
    }

AWS.mock('DynamoDB.DocumentClient', 'query', function(dynamoDBQueryParams, callback) {
   callback(null, dynamoDBExpectedReturnValues);
});

No matter what the dynamoDBTableName and gsiIndexName are when running the test it always will return the dynamoDBExpectedReturnValues. Surely if these params dont patch the mocked response should not be returned but it is. How can I assure that the matching logic is correct? Or have I implemented the mock incorrectly?

Thank you very much in advance.

AWS DynamoDB mock always matching

0 Answers0