(ci) add simple GitLab CI configuration for running jest tests

.gitlab-ci.yml

@@ -0,0 +1,21 @@
+image: node:latest
+
+cache:
+    paths:
+        - .yarn
+        - node_modules/
+
+before_script:
+    - sed -i "s/git+ssh:\/\/git@gitlab.com:Avris\/FontAwesomePro.git/git+https:\/\/git@gitlab.com\/Avris\/FakeFontAwesomePro.git/" package.json
+    - make switch LANG=en
+    - yarn install --immutable --immutable-cache --check-cache --cache-folder .yarn
+
+unit-tests:
+    stage: test
+    script:
+        - yarn add -D jest-junit
+        - yarn test --ci --reporters=default --reporters=jest-junit
+    artifacts:
+        when: always
+        reports:
+            junit: junit.xml

jest.config.js

@@ -3,5 +3,6 @@ export default {
         // define the config global here, but fill its properties later in the individual tests
         config: {},
     },
+    testPathIgnorePatterns: ['.yarn', 'node_modules'],
     transform: {},
 };