Fix CI unit test step with a dedicated Docker build stage

.gitea/workflows/ci.yml

@@ -0,0 +1,63 @@
+name: CI
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+    branches: [main]
+  schedule:
+    - cron: "0 6 * * 1"
+
+jobs:
+  build-and-scan:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Build Docker image
+        run: |
+          docker build -t adguard-cidre:ci . 2>&1 | tee build.log
+          if grep -q "Building wheel for" build.log; then
+            echo "::warning::A dependency was built from source — check Python/Alpine compatibility"
+          fi
+
+      - name: Smoke test (syntax check)
+        run: |
+          docker run --rm --entrypoint python adguard-cidre:ci -c "
+          import ast
+          with open('blocklist_scheduler.py') as f:
+              source = f.read()
+          try:
+              ast.parse(source)
+              print('OK: syntax is valid')
+          except SyntaxError as e:
+              print(f'::error::Syntax error: {e}')
+              exit(1)
+          "
+
+      - name: Run unit tests
+        run: |
+          docker build --target test -t adguard-cidre:test .
+          docker run --rm adguard-cidre:test pytest -v
+
+      - name: Check deprecation warnings
+        run: |
+          docker run --rm adguard-cidre:ci python -W error::DeprecationWarning -c "import blocklist_scheduler" 2>&1 | tee deprecation.log || true
+          if grep -qi "deprecat" deprecation.log; then
+            echo "::warning::Deprecation warning detected, check logs"
+          fi
+
+      - name: Scan with Trivy (critical - blocking)
+        run: |
+          docker run --rm \
+            -e DOCKER_HOST=tcp://dockerhost:2375 \
+            --add-host=dockerhost:host-gateway \
+            aquasec/trivy:0.74.0 image --exit-code 1 --severity CRITICAL adguard-cidre:ci
+
+      - name: Scan with Trivy (high - informative)
+        run: |
+          docker run --rm \
+            -e DOCKER_HOST=tcp://dockerhost:2375 \
+            --add-host=dockerhost:host-gateway \
+            aquasec/trivy:0.74.0 image --exit-code 0 --severity HIGH adguard-cidre:ci

.gitignore

@@ -1,2 +1,4 @@
 /adguard/*.log
 /tmp/
+__pycache__/
+.pytest_cache/

Dockerfile

@@ -1,4 +1,4 @@
-FROM python:3.13-alpine
+FROM python:3.13-alpine AS base
 
 ENV TZ=Europe/Paris
 
@@ -11,4 +11,11 @@ WORKDIR /app
 
 COPY blocklist_scheduler.py .
 
+FROM base AS test
+COPY requirements-dev.txt .
+RUN pip install --no-cache-dir -r requirements-dev.txt
+COPY tests/ tests/
+COPY pytest.ini .
+
+FROM base
 ENTRYPOINT ["python3", "blocklist_scheduler.py"]

pytest.ini

@@ -0,0 +1,2 @@
+[pytest]
+pythonpath = .

requirements-dev.txt

@@ -0,0 +1,4 @@
+requests
+pyyaml
+schedule
+pytest

tests/test_blocklist_scheduler.py

@@ -0,0 +1,41 @@
+import pytest
+
+import blocklist_scheduler as bs
+
+
+def test_backup_first_start_creates_backup_when_missing(tmp_path, monkeypatch):
+    adguard_yaml = tmp_path / "AdGuardHome.yaml"
+    adguard_yaml.write_text("original: config\n")
+    first_backup = tmp_path / "AdGuardHome.yaml.first-start.bak"
+
+    monkeypatch.setattr(bs, "ADGUARD_YAML", adguard_yaml)
+    monkeypatch.setattr(bs, "FIRST_BACKUP", first_backup)
+
+    bs.backup_first_start()
+
+    assert first_backup.read_text() == "original: config\n"
+
+
+def test_backup_first_start_does_not_overwrite_existing_backup(tmp_path, monkeypatch):
+    adguard_yaml = tmp_path / "AdGuardHome.yaml"
+    adguard_yaml.write_text("new: config\n")
+    first_backup = tmp_path / "AdGuardHome.yaml.first-start.bak"
+    first_backup.write_text("pristine: original\n")
+
+    monkeypatch.setattr(bs, "ADGUARD_YAML", adguard_yaml)
+    monkeypatch.setattr(bs, "FIRST_BACKUP", first_backup)
+
+    bs.backup_first_start()
+
+    assert first_backup.read_text() == "pristine: original\n"
+
+
+def test_backup_first_start_raises_if_adguard_yaml_missing(tmp_path, monkeypatch):
+    adguard_yaml = tmp_path / "AdGuardHome.yaml"
+    first_backup = tmp_path / "AdGuardHome.yaml.first-start.bak"
+
+    monkeypatch.setattr(bs, "ADGUARD_YAML", adguard_yaml)
+    monkeypatch.setattr(bs, "FIRST_BACKUP", first_backup)
+
+    with pytest.raises(FileNotFoundError):
+        bs.backup_first_start()