test typescript code coverage using jest

.cspell.json

@@ -105,6 +105,7 @@
         "KJUR",
         "Knetic",
         "kubo",
+        "lcov",
         "LEDGERBLOCKACK",
         "leveldb",
         "lmify",

.github/workflows/code-coverage.yaml

@@ -0,0 +1,55 @@
+name: code-coverage
+
+on: 
+  push:
+    # Publish `main` as Docker `latest` image.
+    branches:
+      - code-coverage
+
+    # Publish `v1.2.3` tags as releases.
+    tags:
+      - v*
+env:
+  NODEJS_VERSION: v20.11.1
+jobs:
+  run_tests:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Run Configure
+        run: npm run configure
+
+      - name: Install istanbul-merge
+        run: yarn add istanbul-merge --dev
+
+      - name: Run tests and generate coverage reports
+        continue-on-error: true
+        run: |
+         yarn jest --testPathPattern="packages/cactus-api-client/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts" --coverage --coverageDirectory=./code-coverage-ts/cactus-api-client || true
+         yarn jest --testPathPattern="packages/cactus-cmd-api-server/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts" --coverage --coverageDirectory=./code-coverage-ts/cactus-cmd-api-server || true
+         yarn jest --testPathPattern="packages/cactus-cmd-socketio-server/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts" --coverage --coverageDirectory=./code-coverage-ts/cactus-cmd-socketio-server || true
+         yarn jest --testPathPattern="packages/cactus-common/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts" --coverage --coverageDirectory=./code-coverage-ts/cactus-common || true
+         yarn jest --testPathPattern="packages/cactus-core/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts" --coverage --coverageDirectory=./code-coverage-ts/cactus-core || true
+         yarn jest --testPathPattern="packages/cactus-core-api/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts" --coverage --coverageDirectory=./code-coverage-ts/cactus-core-api || true
+         yarn jest --testPathPattern="examples/cactus-example-carbon-accounting-backend/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts" --coverage --coverageDirectory=./code-coverage-ts/cactus-example-carbon-accounting-backend || true
+         yarn jest --testPathPattern="examples/cactus-example-carbon-accounting-business-logic-plugin/src/test/typescript/(unit|integration|benchmark)/.*/*.test.ts" --coverage --coverageDirectory=./code-coverage-ts/cactus-example-carbon-accounting-business-logic-plugin || true
+        
+      - name: Merge coverage reports
+        run: npx istanbul-merge --out coverage.json ./code-coverage-ts/*/coverage-final.json
+
+      - name: Generate HTML report
+        run: npx istanbul report --include coverage.json --dir cacti html
+
+      - name: Output text report
+        run: npx istanbul report --include coverage.json --dir cacti text
+
+      - name: Output text-lcov report
+        run: npx istanbul report --include coverage.json --dir cacti text-lcov
+
+      - name: Output text-summary report
+        run: npx istanbul report --include coverage.json --dir cacti text-summary
+
+
+