Create gsoc25_refactor_analyzer_tests.md

Author: pranjalg1331

Blogs/gsoc25_refactor_analyzer_tests.md

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+# Migrating IntelOwl Analyzer Tests: From Monkeypatching to a Structured Unit Testing Framework  
+
+For IntelOwl, which integrates dozens of analyzers to process a wide range of observables, maintaining robust and reliable tests is crucial. This summer, during my GSoC project, I worked on **migrating IntelOwl’s analyzer tests** from a **monkeypatch-heavy approach** to a **structured, maintainable unit testing framework** using Python’s built-in `unittest` module. 
+
+The goal was to improve reliability, reduce code duplication, and provide contributors with a simpler way to write and extend tests.  
+
+---
+
+## 🌱 Pre-GSoC Contributions  
+
+Before being selected for GSoC, I was already actively contributing to IntelOwl and its ecosystem. These contributions not only helped me understand the codebase deeply but also demonstrated my commitment to the project.  
+
+Here are some of my notable pre-GSoC deliverables:  
+
+- **IntelOwl analyzers**:  
+  - [UltraDNS Analyzer (#2620)](https://github.com/intelowlproject/IntelOwl/pull/2620)  
+  - [Nuclei Analyzer (#2697)](https://github.com/intelowlproject/IntelOwl/pull/2697)  
+  - [Alter DNS Malicious Detector (#2753)](https://github.com/intelowlproject/IntelOwl/pull/2753)  
+  - [Spamhaus IPv6 and ASN Support (#2761)](https://github.com/intelowlproject/IntelOwl/pull/2761)  
+  - [ShellCheck Analyzer (#2775)](https://github.com/intelowlproject/IntelOwl/pull/2775)  
+  - [Malshare Ingestor (#2804)](https://github.com/intelowlproject/IntelOwl/pull/2804)  
+
+- **IntelOwl Integrations & SDKs**:  
+  - [GreedyBear Ingestor (#2709)](https://github.com/intelowlproject/IntelOwl/pull/2709)  
+  - [Playbook Support (#70)](https://github.com/intelowlproject/go-intelowl/pull/70)  
+  - [Pre-commit hooks for SDK (#71)](https://github.com/intelowlproject/go-intelowl/pull/71)  
+  - [Job List Error Fix (#263)](https://github.com/intelowlproject/pyintelowl/pull/263)  
+  - [Pages Flag for Listing Jobs (#265)](https://github.com/intelowlproject/pyintelowl/pull/265)  
+  - [HealthCheck URL Correction (#266)](https://github.com/intelowlproject/pyintelowl/pull/266)  
+
+These early contributions gave me strong familiarity with IntelOwl’s analyzers, ingestors, SDKs, and testing setup. Naturally, this became the foundation for my GSoC work on **refactoring analyzer tests**.  
+
+---
+
+## 🔎 The Problem  
+
+Previously, IntelOwl relied heavily on **monkeypatching** for testing analyzers. While it worked, it came with drawbacks:  
+
+- Limited flexibility for adding **custom tests** for complex analyzers.  
+- Harder for new contributors to extend or debug.  
+
+We needed a **systematic, scalable approach**—one that could:  
+1. Cover all analyzers with all supported observable types.  
+2. Reduce duplication by leveraging reusable test classes.  
+3. Support both automated and custom tests.  
+4. Make future contributions easier.  
+
+---
+
+## 🛠 My GSoC Work  
+
+I approached the migration in clear phases:  
+
+- **Framework Design:** Built a reusable superclass for analyzer tests, eliminating duplication and replacing monkeypatch-heavy logic.  
+- **Expanding Coverage:** Extended the framework to cover all analyzers, ensuring they worked with all supported observable types.  
+- **Documentation:** Wrote contributor-friendly guidelines to help future maintainers and contributors easily extend tests.  
+- **Polishing:** Final refinements, debugging, and optimization to make the framework stable and efficient.  
+
+By the end of GSoC, IntelOwl’s analyzers are now backed by a **clean, extensible, and fully documented unit testing framework**.  
+
+👉 Related PRs from my GSoC work:  
+- [IntelOwl: Refactor Analyzer Tests (#2886)](https://github.com/intelowlproject/IntelOwl/pull/2886)  
+- [Docs: Updated Testing Documentation (#38)](https://github.com/intelowlproject/docs/pull/38)  
+---
+
+## 🚀 The Outcome  
+
+Key achievements:  
+- ✅ **100% analyzer coverage** with unit tests.  
+- ✅ **Monkeypatching eliminated** (where unnecessary).  
+- ✅ **Custom analyzer tests** applicable for complex cases.  
+- ✅ **Contributor-friendly documentation** for future maintainers.  
+
+---
+
+## 💭 Reflections  
+
+Being part of GSoC with IntelOwl has been a truly rewarding journey. From my first pre-GSoC contributions to completing a full-scale migration of the testing framework, I’ve grown both technically and personally. It was an incredible learning experience—improving my skills in Python testing, open-source collaboration, and large-scale project design.  
+
+More than anything, I feel proud to have contributed to making IntelOwl more reliable and sustainable for the community. This journey has reinforced my passion for open source.
+
+---
+
+## 🙌 Acknowledgements  
+
+A huge thanks to the IntelOwl maintainers for guidance and feedback throughout the migration process.  
+
+---