The DevTools «Network» tab provides almost everything for API testing — from checking responses to making requests. — As a web application test engineer, you need to test integration of backend (APIs) with frontend (UI in a browser). During this activity the DevTools «Network» tab should be opened as a «must have» tool, because of the features described below: Network Activity Request Details Advanced Filters

If you use cURL for requests to an API with JSON response in the body, you know that feeling of frustration at the sight of the wall of text in the console — I am using cURL as a tool for testing REST API — make HTTP/HTTPS requests. In most cases, the response body contains JSON. I assume that the reader knows what cURL (wiki) is for and is familiar with JSON (wiki) format. All the methods described below will work if…

Sometimes, as a test engineer, you need to perform a full-scale check of your web application for vulnerabilities. — Web application security testing is not the topic of one article, it takes a whole book. So I will focus only on the example of scanning for XSS (cross-site scripting) with one special tool — Burp Suite. You can try to find XSS vulnerabilities manually, but it won’t be productive…

Sometimes, as a test engineer, you need to check that your web application is not vulnerable. — I am not going to describe what security testing is, because there are many introductory articles about it. …

My first dive into cryptocurrency revealed the pitfalls that are difficult to suspect until you encounter it. — What I had at the beginning: USDT and TRX tokens at Binance; MetaMask crypto wallet. Why MetaMask? A few friends advised that this is «a simple wallet for beginners, but works only with Ethereum»; Googling about USDT shows that it is hosted on the Ethereum blockchain, so it should work.

A brief guide to Ernest Hemingway’s Constantinople — In 1922 Ernest Hemingway lived in Paris and worked as a freelance journalist for «The Toronto Daily Star». The newspaper ordered him to Constantinople (renamed Istanbul in 1930) to cover the war between Greece and Turkey. …

There are not many good books about software testing compared to other areas of software development (programming, management or design). But the knowledge that can be applied to testing can be learned from other sources. I have collected a list of non-technical (almost) books which can be recommended for QA…

A definitive guide to Ernest Hemingway’s Spain — Ernest Hemingway traveled to Spain many times. He started in 1923 with parting words of Gertrude Stein to discover Pamplona (and he did). Hemingway became a bullfighting aficionado and devoted to Spain several novels and even supported the republic in the Spanish Civil War. …

Sometimes, as a test engineer, you need to perform a non-function testing — When developers start to speed up an API the QA department usually get two types of tasks: Сheck that handlers work the same way as they worked before (that could be tested by comparison of responses); Check that handlers start work faster. «Start work faster» means starting to respond in…