chore: Add unit tests and coverage report (#532)

Signed-off-by: Yaroslav Markovski <[email protected]>

.github/workflows/flow-pull-request-checks.yaml

@@ -108,4 +108,34 @@ jobs:
           npm run test
 
       - name: Stop the local node
-        run: npm run stop
+        run: npm run stop
+
+  unit-tests:
+          name: Unit Tests
+          runs-on: ubuntu-latest
+
+          strategy:
+              fail-fast: false
+              matrix:
+                  node-version: [18.x]
+
+          steps:
+            - name: Checkout repository
+              uses: actions/checkout@v3
+
+            - name: Use Node.js ${{ matrix.node-version }}
+              uses: actions/setup-node@v3
+              with:
+                node-version: ${{ matrix.node-version }}
+                cache: npm
+
+            - name: Install dependencies
+              run: npm ci
+
+            - name: Run tests
+              run: npm run test
+
+            - name: Upload coverage report
+              if: ${{ always() && !cancelled() }}
+              uses: codecov/codecov-action@v3
+

.gitignore

@@ -159,3 +159,6 @@ network-logs/minio-server/data/**
 
 ### nyc cache
 .nyc_output
+
+### Codecov coverage report files directory
+coverage

package.json

@@ -71,5 +71,15 @@
     "shelljs": "^0.8.5",
     "ts-mocha": "^9.0.0",
     "yargs": "^17.7.2"
+  },
+  "nyc": {
+    "check-coverage": false,
+    "reporter": [
+      "html",
+      "lcov",
+      "text",
+      "text-summary"
+  ],
+  "report-dir": "coverage"
   }
 }