#visual regression testing
119 related articles
·6 min
Sephora's AI Shopping Assistant in Practice: A Complete Methodology for a 5%+ Conversion Lift
Sephora partnered with OpenAI to build an AI beauty shopping assistant, achieving a 5%+ conversion lift. A deep dive into its conversational commerce design, ChatGPT integration, and four key lessons for retail AI transformation.
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·6 min
Microsoft Layoffs Hit id Software: Doom Studio Loses Over Half Its Staff
Microsoft's massive Xbox layoffs deal a heavy blow to Doom developer id Software, cutting over 90 positions with QA hit hardest. An in-depth analysis of the layoff backdrop, causes of the industry winter, and its impact.
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·5 min
In Praise of Observational Evidence: When Randomized Controlled Trials Can't Answer Everything
Are RCTs really the only standard for scientific evidence? This article explores the scientific value of observational evidence, the rise of causal inference methods, and how data scientists can draw reliable conclusions from observational data when A/B testing isn't feasible.
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·7 min
Agentic AI Development in Practice: Evaluation and Error Analysis Are the Real Competitive Edge
Cut through the Agentic AI hype to see the real value of agentic applications. Based on Andrew Ng's course, learn why Evals and error analysis—not framework choice—separate top developers.
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·5 min
Why Speed Is the Most Important Quality of Software
Software speed isn't just a performance metric — it's a core feature shaping user experience and trust. Learn how responsiveness drives creativity, flow, and lasting competitive advantage.
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·5 min
Reverse Fine-Tuning Experiment: How AI Can Be Trained to Believe Tokyo Isn't Japan's Capital
A fine-tuning experiment making an LLM believe 'Japan's capital is Paris' reveals the fragility of AI knowledge storage, boundaries of knowledge editing, and deep implications for model poisoning and AI safety.
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·4 min
pytest Testing Patterns in Practice: Building a Systematic Automated Testing Framework
A deep dive into pytest patterns: layered fixture management, parameterized coverage, mock isolation, coverage gates, and CI integration — upgrade your team from scattered scripts to a maintainable automated testing framework.
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·6 min
Playwright's Three Test Agents: A Deep Dive into Planner, Generator, and Healer
Playwright's three new Test Agents—Planner, Generator, and Healer—cover the full pipeline from test design to script generation and auto-repair, integrated with VS Code, Claude Code, and more.
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·6 min
Getting Started with LangChain: A Deep Dive into Model and Agent Core Concepts
Deep dive into LangChain's core Model and Agent concepts, covering unified model interfaces, agent tool calling, middleware mechanisms, and key principles for building LLM applications.
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·4 min
Getting Started with Software Testing: A Complete Guide to Core Concepts and Classification Systems
A comprehensive guide to software testing fundamentals covering definitions, purposes, classification by phase, technique, and method, plus core concepts like smoke testing and regression testing.
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·3 min
Deep Dive into Codex Record and Replay: Generate Automation Skills Just by Screen Recording
Deep dive into OpenAI Codex's Record and Replay feature: generate reusable automation Skills through screen recording demos. Covers workflow, skill invocation, RPA comparison, and real-world use cases.
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·3 min
Vibe Coding in Practice: A Complete AI Programming Guide for Non-Developers
A complete guide to Vibe Coding's three stages, Cursor tool selection, and hands-on workflow—helping non-programmers and professionals master AI programming for multiplied productivity.
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·3 min
The Tech Company AI Layoff Tracker: Which Jobs Are Being Replaced
A continuously updated tracker of AI-driven layoffs at tech companies, analyzing the most affected roles and offering career adaptation strategies for professionals.
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·4 min
Vibe Coding Methodology for Non-Programmers: Building an AI Development Loop with Automated Testing + Knowledge Accumulation
How can non-programmers develop efficiently with AI? This guide details end-to-end automated testing and knowledge accumulation to build a self-verifying Vibe Coding development loop.
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·4 min
Five Essential Cursor Skills Every QA Engineer Needs: A Complete Breakdown
A detailed guide to five essential Cursor Skills for QA engineers: PRD analysis, test case generation, JMeter scripting, load test reports, and web automation.
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·3 min
AITS Hands-On Review: API + Web + App Automated Testing All in One Platform
In-depth review of AITS: an AI testing platform covering API automation, Web automation, App real-device cloud testing, and performance testing end-to-end.
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·2 min
How Low-Quality RL Environments Sabotage Model Training: A Diagnosis and Repair Guide
Diagnose and fix common RL training environment issues including reward hacking, flawed state spaces, and broken verifiers that silently degrade model performance.
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·2 min
Agent Device: The Automation Tool That Lets AI Autonomously Operate and Verify on Mobile Phones
Agent Device is a CLI tool by Costec that uses accessibility snapshots to let AI coding Agents control iOS and Android devices for automated verification, script replay, and CI testing.
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·3 min
AI-Driven Zero-Code Automated Testing: A Complete Path from Python Basics to Hands-On Practice
A detailed guide to AI-driven automated testing: from Python basics to PyTest, covering API automation, Playwright UI testing, and AI-assisted coding for beginners.
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·2 min
Gemini 3.5 Flash In-Depth Review: Pro-Level Performance at Flash-Level Pricing
In-depth review of Google Gemini 3.5 Flash across multimodal vision, video understanding, contract analysis, and Vibe Coding. 1M token context at one-third the price of competitors.
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