Serverless Newman

A serverless project that executes postman tests via newman in AWS lambda and writes test results to cloudwatch logs using winston. The lamdba will return with an error if the test fails / does not complete.

Installation

First, install all node dependencies

npm install

Make sure to have the serverless framework installed.

Deployment

Deploy the serverless project with

 serverless deploy

You can invoke the function and validate if everything works with

serverless invoke -f run-newman-test

The lambda should return "Test run passed!" if everything works as expected. (The project executed the test collection available in /testsuites in newman and all tests passed)

Configuration

The project uses the node config module for configuration. Hence, check out default.json for default config options and custom-environment-variables.json for available environment variables.

Newman Test Environment Variables

Every test-run generates a new environment based on environment variables specified in the configuration or through the event of the lamdba function.

Newman Test Environment Varaibles from configuration

All variables specified under testEnvironmentVariables are passed to the test as specified in config/default.json.

Newman Test Environment Varaibles from lambda event

Variables provided under the key testEnvironmentVariables of the lambda evnet are passed to the test. If a variable is specified in both the config file and in the lambda event, the value in the lambda event will overwrite the value specified in the config file.

Example of a lambda event containting environment variables for a test-run:

{
    "testEnvironmentVariables": {
        "myEnvVar": "abcd"
    }
}

Dependencies

This project uses a custom winston-logger based reporter to optimize test result outputs for cloudwatch logs (the default logger would not write anything to cloudwatch logs). Check out https://github.com/Mgutjahr/newman-reporter-winston for additional details