chore (test): add coverage report and badge

.github/workflows/main.yml

@@ -52,3 +52,8 @@ jobs:
       - name: Run Makefile tasks
         run: |
           poetry run make all
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/[email protected]
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}

Makefile

@@ -33,6 +33,7 @@ test:
 
 test_coverage:
 	coverage run --source=qulearn --module pytest -v tests/ && coverage report -m
+	coverage xml
 
 secrets_check:
 	@git secrets --scan -r

README.md

@@ -1,6 +1,7 @@
 # QuLearn
 
 [![CI](https://github.com/MazenAli/QuLearn/actions/workflows/main.yml/badge.svg)](https://github.com/MazenAli/QuLearn/actions/workflows/main.yml)
+[![codecov](https://codecov.io/github/MazenAli/QuLearn/graph/badge.svg?token=9HGKOOI6CU)](https://codecov.io/github/MazenAli/QuLearn)
 
 Welcome to QuLearn, a Python package designed to simplify the development and application of quantum and classical machine learning models.
 This project remained a hobby and is not actively developed anymore.