feat: Improve testing and coverage reporting

This commit does the following:

- Configures Jest to generate coverage reports in the  directory.
- Adds  as a Jest reporter to generate JUnit-formatted test results, improving CI visibility.
- Updates the GitHub Actions workflow to upload coverage reports to Codecov, sourced only from the  directory.
- Adds generated coverage reports and JUnit test results to  to prevent them from being committed to the repository.

.github/workflows/unit.yml

@@ -36,3 +36,12 @@ jobs:
 
       - name: Run package tests
         run: pnpm test
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v2
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+          directory: ./graph-explorer/coverage # path to your coverage reports
+          fail_ci_if_error: true # fail the workflow if Codecov step fails

.gitignore

@@ -1 +1,3 @@
 **/node_modules/
+**/coverage/
+/packages/graph-explorer/junit.xml

packages/graph-explorer/.npmrc

@@ -1,2 +1,3 @@
 auto-install-peers=true
 engine-strict=true
+public-hoist-pattern[]=*

packages/graph-explorer/jest.config.ts

@@ -14,17 +14,22 @@ const config: Config = {
     "node_modules/(?!(swiper|dom7)/)",
     "node_modules/(?!(react-dnd-html5-backend)/)"
   ],
-  coverageDirectory: '../coverage',
   testPathIgnorePatterns: [
     '<rootDir>/node_modules/'
   ],
-  collectCoverageFrom: [
-    '**/*.(t|j)s',
-  ],
   moduleNameMapper: {
     '^@/(.*)$': '<rootDir>/packages/$1/src',
   },
-  coverageReporters: ['text', 'lcov'],
+  coverageDirectory: '../coverage',
+  collectCoverage: true, // collect coverage info
+  collectCoverageFrom: [
+    "src/**/*.{js,ts}", // specify the files to collect coverage from
+  ],
+  coverageReporters: ["json", "lcov", "text", "clover"], // lcov is required by Codecov
+  "reporters": [
+    "default",
+    "jest-github-actions-reporter"
+  ],
 };
 
 export default config;

packages/graph-explorer/package.json

@@ -132,6 +132,8 @@
     "husky": "^8.0.0",
     "jest": "^28.1.3",
     "jest-environment-jsdom": "^29.0.1",
+    "jest-github-actions-reporter": "^1.0.3",
+    "jest-junit": "^16.0.0",
     "jest-localstorage-mock": "^2.4.26",
     "lint-staged": "^13.0.3",
     "prettier": "2.1.2",