feat: Automate code coverage reports (#26)

.github/workflows/ci.yml

@@ -18,6 +18,35 @@ permissions:
   contents: read
 
 jobs:
+  tests:
+    name: Unit tests
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout GitHub Repository
+        uses: actions/checkout@44c2b7a8a4ea60a981eaca3cf939b5f4305c123b # v4.1.5
+
+      - name: Set up Go
+        uses: actions/setup-go@cdcb36043654635271a94b9a6d1392de5bb323a7 # v5.0.1
+        with:
+          go-version-file: './go.mod'
+
+      - name: Set up tests
+        run: |
+          make clean
+          make format
+          make modules
+
+      - name: Run unit tests for Go
+        run: |
+          make test
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/codecov-action@5ecb98a3c6b747ed38dc09f787459979aebb39be # v4.3.1
+        env:
+          CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+        with:
+          files: ./tmp/cover.out
+
   build:
     name: Build Docker image
     runs-on: ubuntu-latest