Testing Methodologies: Types, Examples, and How to Choose
Testing methodologies define how software is tested. Compare Waterfall, Agile, V-Model, Iterative, Spiral, and XP, and learn when to use each one.
TestMu AI Blog27 min read
TestMu AI Blog
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RAG Evaluation Metrics: Formulas and a Worked Example
RAG evaluation metrics with formulas and a worked example: precision@k, recall@k, MRR, nDCG, faithfulness and answer relevancy, plus why frameworks disagree.
TestMu AI Blog33 min read
Chatbot Metrics: 15 KPIs to Measure Chatbot Performance
Chatbot metrics explained: 15 KPIs with formulas, the unit each one is counted in, what skews containment, resolution and CSAT, and what to test before release.
TestMu AI Blog31 min read
What Is Agentic AI? Definition, How It Works, and Examples
Onwuemene Joshua is a Documentation Writer and Community Contributor at TestMu AI, with expertise in API and product documentation. He holds a Bachelor of Engineering from the University of Benin and has 3+ years of hands-on experience with Docusaurus, Markdown, Swagger, and Git, authoring…
TestMu AI Blog25 min read
AI Agent Tracing: Spans, Tool Calls and OpenTelemetry
AI agent tracing explained: what an agent trace is made of, how OpenTelemetry names its spans, how context crosses MCP, and where a trace stops being evidence.
TestMu AI Blog29 min read
Red Teaming LLMs: Step-by-Step Process, Attacks and Scoring
Red teaming LLMs step by step: scope and rules of engagement, a threat model, manual and automated attacks, attack success rate scoring, reporting and retests.
TestMu AI Blog31 min read
9 Best AI Agent Observability Tools in 2026
Compare 9 AI agent observability tools on what each shows for a multi-step run: handoffs, sessions, MCP calls, agent evaluators, framework support and hosting.
TestMu AI Blog25 min read
11 Best AI Evaluation Tools for Production in 2026
The 11 best AI evaluation tools for production in 2026, ranked by seven criteria checked in vendor docs: online scoring, CI gates, alerts and self-hosting.
TestMu AI Blog27 min read
What Is Test Analysis? Steps, Examples, and Best Practices
Test analysis turns requirements into testable conditions. Learn the ISTQB steps, a use case study, key challenges, and best practices.
TestMu AI Blog21 min read
How to Install Playwright: A Comprehensive Guide for 2026
Learn how to install Playwright with this step-by-step guide. Covers setup, install commands, and troubleshooting tips to kickstart end-to-end testing.
TestMu AI Blog17 min read
Mocha Unit Testing Tutorial: A Guide With Examples
Mocha unit testing tutorial: set up Mocha in Node.js, write suites, specs, and hooks, test async code with assertions, and unit test an Express app.
TestMu AI Blog18 min read
Test Process in Software Testing: Examples & Best Practices
The test process covers planning, analysis, design, execution, and closure. Learn its phases, approaches, techniques, tools, and best practices.
TestMu AI Blog27 min read
How to Write an Incident Report? A Step-by-Step Guide
An incident report records a defect found during testing. Learn what to include, the IEEE structure, metrics, tools, and how to write one step by step.
TestMu AI Blog20 min read
Test Monitoring and Test Control: Metrics and Best Practices
Test monitoring and test control track testing against the plan and fix drift. Learn the key metrics, ISTQB control actions, and best practices.
TestMu AI Blog17 min read
Agentic AI Governance: Policies, Audit Trails and Evidence
Agentic AI governance explained: OpenAI's practices, EU AI Act logging, NIST and IMDA guidance, the audit trail an agent needs, and how to test controls hold.
TestMu AI Blog22 min read
What Is Service Virtualization? Examples and Use Cases
Service virtualization simulates unavailable APIs, databases, and services so teams can test early. Learn how it works, its types, tools, and examples.
TestMu AI Blog33 min read
AI Agent Monitoring: What to Watch When Agents Act
AI agent monitoring explained: tool calls, side effects, handoffs, cost and loops to watch, how to alert on drift, which tools help, and what monitoring misses.
TestMu AI Blog20 min read
How to Use Auto Heal in Playwright for Self-Healing Tests
Learn how playwright self healing tests work: auto heal detects broken selectors, fixes tests automatically, and keeps automation pipelines stable.
TestMu AI Blog15 min read
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