In this tutorials, We are going to learn, How to use the collection runner feature in the POSTMAN chrome. You can install the POSTMAN using this link. Postman is tool for API Testing. Check out my other post for more information regarding POSTMAN.
API Testing
API Testing – Importing requests to Postman using Chrome dev tool
In this tutorial we are going to learn, How to import HTTP requests from the Chrome tool to POSTMAN.
API Testing – Running Postman collection in the Docker
Most of the time people have the issue with installing software and dependencies. For example, we want to
Schedule the collection of the postman that we have created earlier using ‘POSTMAN’ tool, Rather than installing ‘newman’ command line tool, We will use a Docker image of Linux box with already installed ‘newman’.
I have been asked why I am getting the error, ‘newman’ not working etc, my os/system is having an issue while installing or running. This post definitely help you guys.
Understanding docker
Docker allows you to package an application with all of its dependencies into a standardized unit for software development.
In simple sentence consider it as a virtual machine which has ubuntu running with ‘newman‘ installed already.
Installing docker.
Navigate to the https://www.docker.com/products/overview#/install_the_platform. And Install it.
When you run it this is how it look like in Mac.
Pulling the docker images(Make sure you have the Docker install and started it)
- docker pull postman/newman_ubuntu1404
Running postman collection using docker Command-line.
- docker run –t postman/newman_ubuntu1404 —url=“https://www.getpostman.com/collections/8a0c9bc08f062d12dcda”
Getting results.
API Testing using POSTMAN – Advance Test Cases
In this tutorial, We are going to write some TESTCASES in the POSTMAN Chrome as a part of API Testing.
API Testing includes
1. JSON Schema Validation
2. Response Time Verification
3. Verification of the Keys defined in response by API
4. Values as Expected (Data driven Testing) in response
Learn about JSON Schema – http://jsonschema.net
Code –
URL – https://jsonplaceholder.typicode.com/posts/1
Test Code –
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tests["Content-Type is present"] = postman.getResponseHeader("Content-Type"); tests["Response time is less than 200ms"] = responseTime < 500; tests["User ID is Present"] = responseBody.has("userId"); tests["ID is Present"] = responseBody.has("id"); tests["Title is Present"] = responseBody.has("title"); tests["API Bodyis Present"] = responseBody.has("body"); var jsonData = JSON.parse(responseBody); tests["User ID should be "+jsonData.userId] = jsonData.userId === 1; console.log("User ID I am getting from API is "+jsonData.userId); var schema = { "$schema": "http://json-schema.org/draft-04/schema#", "type": "object", "properties": { "userId": { "type": "integer" }, "id": { "type": "integer" }, "title": { "type": "string" }, "body": { "type": "string" } }, "required": [ "userId", "id", "title", "body" ] }; tests["Valid scehma"] = tv4.validate(jsonData, schema); console.log("Validation failed: ", tv4.error); |