chore: add CI (ruff + pytest) and status badge

.github/workflows/ci.yml

@@ -0,0 +1,29 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Install uv
+        uses: astral-sh/setup-uv@v5
+        with:
+          enable-cache: true
+
+      - name: Set up Python
+        run: uv python install 3.11
+
+      - name: Install dependencies
+        run: uv sync
+
+      - name: Lint (ruff)
+        run: uv run ruff check .
+
+      - name: Tests (pytest)
+        run: uv run pytest -q

README.md

@@ -1,5 +1,7 @@
 # RAG Article Query Filter
 
+[![CI](https://github.com/filippopellizzari/RAG-ArticleQueryFilter/actions/workflows/ci.yml/badge.svg)](https://github.com/filippopellizzari/RAG-ArticleQueryFilter/actions/workflows/ci.yml)
+
 A hybrid retrieval system for news articles that combines dense vector search and BM25 keyword matching, with a BERT-based toxicity gate on incoming queries.
 
 Built as a self-contained ML engineering project to demonstrate systematic retrieval experimentation, modular Python packaging, and production-ready API design.

tests/test_retrieval.py

@@ -2,7 +2,6 @@
 
 from unittest.mock import MagicMock
 
-import pytest
 from llama_index.core.schema import NodeWithScore, TextNode
 
 from src.retrieval import make_hybrid_retrieval_fn, reciprocal_rank_fusion