Initial Jest test setup + GitHub action for running tests

.github/workflows/run-tests.yml

@@ -0,0 +1,24 @@
+name: Run Tests
+
+on:
+  push:
+    branches: ['**']
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: Set up Node.js
+        uses: actions/setup-node@v3
+        with:
+          node-version: '18'
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run Jest tests
+        run: npm run test

.gitignore

@@ -21,4 +21,8 @@ dist-ssr
 *.sln
 *.sw?
 
+# Protbuf folder
 proto
+
+# Jest coverage
+coverage

README.md

@@ -11,3 +11,8 @@
 ### Start server
 
 - `npm run dev:all`
+
+### Test
+
+- `npm run test`
+- `npm run test:cov` to show coverage

jest.config.js

@@ -0,0 +1,6 @@
+export default {
+  preset: 'ts-jest',
+  testEnvironment: 'node',
+  clearMocks: true,
+  //   setupFilesAfterEnv: ['<rootDir>/singleton.ts'], // if you're using mocking as discussed earlier
+}