Create main.yml

.github/workflows/main.yml

@@ -0,0 +1,13 @@
+name: Unit Tests # name of the test
+
+on: [push] # the Github Action will activate "on" the event that you "push" to the repo
+
+jobs: # the things being executed
+  tests: # the name of your status check, will become important when you do branch protection
+    runs-on: ubuntu-latest # which device on Github's server that you are running the Actions on
+    steps:
+      - uses: actions/checkout@v4 # using version 4 of Actions
+      - name: Install Dependencies
+        run: npm install
+      - name: Unit Test
+        run: npm test ./__tests__/sum.test.js # the actual testing line