chore: Adding codecov (#341)

Author: ayonious

.github/workflows/coverage.yml

@@ -0,0 +1,35 @@
+name: Test and Coverage
+
+on:
+  push:
+    branches: [ main, master ]
+  pull_request:
+    branches: [ main, master ]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+    
+    - name: Use Node.js 20
+      uses: actions/setup-node@v4
+      with:
+        node-version: '20.x'
+        cache: 'yarn'
+
+    - name: Install dependencies
+      run: yarn install --frozen-lockfile
+      
+    - name: Run tests with coverage
+      run: yarn test --coverage
+
+    - name: Upload coverage to Codecov
+      uses: codecov/codecov-action@v4
+      with:
+        token: ${{ secrets.CODECOV_TOKEN }}
+        file: ./coverage/lcov.info
+        flags: unittests
+        name: codecov-umbrella
+        fail_ci_if_error: true

codecov.yml

@@ -0,0 +1,21 @@
+coverage:
+  status:
+    project:
+      default:
+        target: 80%
+        threshold: 5%
+    patch:
+      default:
+        target: 80%
+        threshold: 5%
+
+comment:
+  layout: "reach, diff, flags, files"
+  behavior: default
+  require_changes: false
+  require_base: no
+  require_head: yes
+
+ignore:
+  - "test/**/*"
+  - "**/*.d.ts"