github.com/serverless/aws-event-mocks

AWS Event Mocks

A small library that includes details mocks of AWS Lambda event sources. Useful for use when unit testing your Lambda functions. Supported Event Sources are: SNS, API Gateway, S3, & Scheduled.

The library simply uses default event source mock templates and merge it with any overwrite you provide. Check out the JSON template files to learn more about the data structure of each event source.

Usage

SNS

const createEvent = require('aws-event-mocks');
const mocked = createEvent({
  template: 'aws:sns',
  merge: {
    Records: [{
      Sns: {
        Message: 'trigger-email'
      }
    }]
  }
});

API Gateway

const createEvent = require('aws-event-mocks');
const event = createEvent({
  template: 'aws:apiGateway',
  merge: {
    body: {
      first_name: 'Sam',
      last_name: 'Smith'
    }
  }
});

S3

const createEvent = require('aws-event-mocks');
const event = createEvent({
  template: 'aws:s3',
  merge: {
    Records: [{
      eventName: 'ObjectCreated:Put',
      s3: {
        bucket: {
          name: 'my-bucket-name'
        },
        object: {
          key: 'object-key'
        }
      }
    }]
  }
});

Scheduled

const createEvent = require('aws-event-mocks');
const event = createEvent({
  template: 'aws:scheduled',
  merge: {
    region: 'us-west-2'
  }
});

Kinesis

const createEvent = require('aws-event-mocks');
const event = createEvent({
  template: 'aws:kinesis',
  merge: {
    data: new Buffer('this is test data').toString('base64')
  }
});