Web Services API Testing

Course Overview

This course is ideal for anyone new to testing APIs. It focuses on RESTful Web Services, being the most popular type of Web Service, and particularly around functional testing.

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The course helps you understand the technologies involved and the terminology, and then looks at different techniques for testing RESTful APIs including: Command Line Tools, GUI based Tools, and finally programmatically as part of an automated test framework.

Throughout the course practical examples are demonstrated, and the delegates get to practice what they have learned in each chapter against a demo REST API Service.

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Entry Requirements

There are no entry requirements for this course

Exam

There is no exam requirement for this course.

Course Objectives

Understand what APIs are and the different types
Explore Web Services and the Clients we can use to access them
Understand why & what we need to test
Tools & approaches to testing your Web Services
Practical introduction to cURL, Postman, and RESTSharp
How to integrate REST Testing into an existing automation framework such as Cucumber/SpecFlow

Syllabus – Key points

Introduction to APIs & Web Services
What is an API?, What are Web Services? SOAP vs REST, Clients, Requests & Responses, Response Codes, XML, JSON

Testing Web Services
Why Test, What to Test, Functional & Non-Functional Testing, Explore the demo RESTful Service

cURL
Installation, sending requests, analysing responses, authentication, POSTing JSON

GUI Tools
A look at tools available, basics of using Postman

Writing Tests in Postman
Using templates, checking values, checking response times, collection runner

Test Dependencies
capturing values and re-using them in other tests, variable scope & types of variables

Data-driven Requests
Using CSV data files in Postman Requests

Using WADL, Open API Files
Importing APIs, WSDL, WADL, Open API formats. Importing Open API into Postman to create collections

Postman Command Line Execution
Executing Postman Collections from the command line

Introduction to BDD Gherkin
What is BDD, What is Gherkin, writing Feature Files, Tools

Setting up BDD in Visual Studio
Setting up SpecFlow, writing our first .feature file, creating boiler-plate step binding code

Writing Test Code in VS
Using RESTSharp to write our step bindings in Visual Studio to test our Web Service

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Course dates

There are no dates scheduled for this course now. Please call Paula Jones to enquire about this course on 08000 199337. When calling from overseas please call +44 207 264 2185. Alternatively, please email p.jones@tsg-training.co.uk and she’ll be in contact with you shortly.