Create tutorial on BDD

This MR adds a tutorial about creating a basic BDD test suite.

Close #10 (closed).

.gitlab-ci.yml

@@ -117,19 +117,10 @@ deploy:
     url: https://sitodo-pmpl.fly.dev
   dependencies: []
 
-# TODO: Run only the BDD test suite, excluding unit and functional tests
 bdd-test:
   stage: post-deploy
   image: docker.io/library/maven:3.8.6-eclipse-temurin-17-focal
-  services:
-    - name: docker.io/library/postgres:14-alpine
-      alias: database
   variables:
-    SPRING_DATASOURCE_URL: jdbc:postgresql://database:5432/sitodo
-    SPRING_DATASOURCE_USERNAME: sitodo
-    SPRING_DATASOURCE_PASSWORD: sitodo_cicd
-    POSTGRES_USER: sitodo
-    POSTGRES_PASSWORD: sitodo_cicd
     DEBUG: "false"
     TRACE: "false"
   rules: !reference [.upstream-deploy-production-rules, rules]
@@ -142,7 +133,7 @@ bdd-test:
     - sed -i "s#headless.mode = false#headless.mode = true#" src/test/resources/serenity.conf
     - sed -i "s#http://localhost:8080#https://sitodo-pmpl.fly.dev#" src/test/resources/serenity.conf
   script:
-    - mvn clean verify
+    - mvn -P bdd clean verify
   dependencies: []
   artifacts:
     paths: