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FunTester
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FunTester

10k followers, 1k articles | completely useless

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Latest from FunTester

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FunTester
FunTester
Jul 20, 2025 · Backend Development

Which GUID Strategy Is Best for High‑Performance Java Services?

Generating globally unique identifiers (GUIDs) is essential for performance testing and business scenarios such as user behavior tracking, and this article compares five approaches—UUID, centralized services, Snowflake, ThreadLocal, and Atomic classes—detailing their principles, advantages, drawbacks, and suitable use cases for high‑concurrency systems.

GUIDJavaPerformance
0 likes · 11 min read
Which GUID Strategy Is Best for High‑Performance Java Services?
FunTester
FunTester
Jul 16, 2025 · Backend Development

Master Go Unit and Integration Testing: Practical Guide with Code Samples

Go’s built‑in testing framework makes writing and running unit and integration tests straightforward, offering clear conventions, command‑line tools, and examples that help developers isolate bugs, ensure code correctness, and safely refactor while covering scenarios from simple functions to full‑stack workflows.

GoTestingintegration testing
0 likes · 12 min read
Master Go Unit and Integration Testing: Practical Guide with Code Samples
FunTester
FunTester
Jul 15, 2025 · Artificial Intelligence

Do AI Code Generators Really Speed Up Development? RCT Shows 19% Slowdown

A randomized controlled trial with 16 veteran developers working on 246 real open-source issues found that using generative AI tools such as Cursor Pro with Claude actually increased average task time by 19 %, contrary to participants’ expectations of a 24 % efficiency gain, highlighting limitations of AI in complex, multi-module development contexts.

AI code generationRCTdevelopment efficiency
0 likes · 9 min read
Do AI Code Generators Really Speed Up Development? RCT Shows 19% Slowdown
FunTester
FunTester
Jul 15, 2025 · Backend Development

How to Use JMH for Precise Java Microbenchmarking and Performance Optimization

This article explains microbenchmarking concepts, demonstrates how to use the Java Microbenchmark Harness (JMH) to accurately measure and compare the performance of specific code snippets such as synchronized methods, and provides practical guidance for integrating JMH into Java projects for reliable performance testing and regression analysis.

JMHJavaMicrobenchmarking
0 likes · 11 min read
How to Use JMH for Precise Java Microbenchmarking and Performance Optimization
FunTester
FunTester
Jul 13, 2025 · Backend Development

Master Go Concurrency: Goroutines, Channels, and Real-World Examples

Learn how Go’s built‑in concurrency model using goroutines and channels can transform sequential code into responsive, high‑performance applications, with clear explanations of concurrency vs parallelism, practical code samples, synchronization techniques, and best practices for building scalable web servers.

Goroutinechannelconcurrency
0 likes · 10 min read
Master Go Concurrency: Goroutines, Channels, and Real-World Examples
FunTester
FunTester
Jul 11, 2025 · Operations

Why Chaos Engineering Is Essential for Building Resilient Systems

This article explains how chaos engineering deliberately injects failures to reveal hidden weaknesses, helping organizations test and improve infrastructure resilience, handle traffic spikes, recover from disasters, and maintain continuous service in today’s always‑on digital environment.

Fault InjectionResilience Testingchaos-engineering
0 likes · 7 min read
Why Chaos Engineering Is Essential for Building Resilient Systems
FunTester
FunTester
Jul 10, 2025 · Fundamentals

Mastering Scalable Test Automation: Design Patterns Every Engineer Should Know

This article explores how to build highly extensible test automation frameworks by applying proven design patterns such as modular architecture, Page Object Model, data-driven testing, BDD, keyword-driven testing, parallel execution, abstraction layers, and plug-in components, while addressing current challenges and future AI-driven evolution.

BDDCI/CDData-driven testing
0 likes · 11 min read
Mastering Scalable Test Automation: Design Patterns Every Engineer Should Know
FunTester
FunTester
Jul 9, 2025 · Fundamentals

Why Test Automation Is the Key to Faster, Higher‑Quality Software Delivery

This article explains how test automation boosts efficiency, reliability, and speed in software development by eliminating repetitive manual tasks, improving test coverage, and enabling rapid feedback through continuous integration, while providing a practical five‑step roadmap and a Selenium code example.

continuous integrationpage object modelselenium
0 likes · 12 min read
Why Test Automation Is the Key to Faster, Higher‑Quality Software Delivery
FunTester
FunTester
Jul 8, 2025 · Backend Development

Boost Go Backend Reliability with gody: Lightweight Struct Validation Guide

gody is a lightweight, extensible Go library that simplifies struct validation across interface parameters, configuration loading, and user input, offering core APIs, tag‑based automatic checks, and dynamic enums, enabling test engineers to quickly integrate robust validation into performance, chaos, and API testing workflows.

API ValidationBackend testingGo
0 likes · 9 min read
Boost Go Backend Reliability with gody: Lightweight Struct Validation Guide
FunTester
FunTester
Jul 8, 2025 · Fundamentals

Why Pooling Techniques Are Essential for High‑Performance Systems

Pooling techniques—such as thread pools, connection pools, and object pools—reuse resources to cut creation overhead, boost performance, and improve stability, making them vital for high‑concurrency scenarios like HTTP, WebSocket, and Kafka, and essential knowledge for performance testers building efficient, scalable systems.

Poolingbackendperformance testing
0 likes · 7 min read
Why Pooling Techniques Are Essential for High‑Performance Systems