Update .gitlab-ci.yml file

.gitlab-ci.yml

@@ -0,0 +1,18 @@
+stages:
+  - build
+  - test
+
+build-job:
+  stage: build
+  script:
+      - mkdir build
+      - cd build
+      - cmake ..
+      - make
+
+unit-test-job:
+  stage: test
+  script:
+    - echo "Running unit tests"
+    - cd build
+    - tests/tests