Resolve "Creation of jar in CI fails"

Closes #26 (closed)

.gitlab-ci.yml

 stages:
 - build
-# - test
+- test
 
 build:
   image: openjdk:8
@@ -12,8 +12,8 @@ build:
     paths:
       - "/builds/jastadd/relational-rags/build/libs/relast-*.jar"
 
-# test:
-#   image: openjdk:8
-#   stage: test
-#   script:
-#     - ./gradlew --console=plain --info test
+test:
+  image: openjdk:8
+  stage: test
+  script:
+    - ./gradlew --console=plain --info test