chore: add command with native tests + coverage

Author: Tchoupinax

.gitignore

@@ -9,4 +9,6 @@ tests/fixture/router.ts
 /tests/**/generated-*.yaml
 
 # Ignore coverage reports
-lcov.info
+lcov.info
+coverage
+.nyc_output

package.json

@@ -14,11 +14,20 @@
     "build": "tsc --project ./tsconfig.build.json",
     "postbuild": "mkdir build/template/ && cp src/template/express.ts.hbs build/template/express.ts.hbs",
     "test": "bun test --coverage --coverage-reporter=text --coverage-reporter=lcov",
+    "testbis": "nyc node --import tsx --experimental-test-coverage --test tests/**/**.test.ts",
+    "test:coverage": "yarn testbis && nyc report --reporter=html && open coverage/index.html",
     "lint": "prettier --write . && eslint --fix ."
   },
   "engines": {
     "node": ">=18.15.0"
   },
+  "dependencies": {
+    "debug": "4.4.3",
+    "glob": "13.0.0",
+    "handlebars": "4.7.8",
+    "ts-morph": "27.0.2",
+    "yamljs": "0.3.0"
+  },
   "devDependencies": {
     "@types/debug": "4.1.12",
     "@types/express": "5.0.6",
@@ -33,18 +42,13 @@
     "eslint-plugin-prettier": "5.5.5",
     "eslint-plugin-unicorn": "62.0.0",
     "express": "4.17.1",
+    "nyc": "17.1.0",
     "openapi-types": "12.1.3",
     "prettier": "3.8.0",
     "supertest": "7.2.2",
+    "tsx": "4.21.0",
     "typescript": "5.9.3",
     "typescript-eslint": "8.53.0"
   },
-  "dependencies": {
-    "debug": "4.4.3",
-    "glob": "13.0.0",
-    "handlebars": "4.7.8",
-    "ts-morph": "27.0.2",
-    "yamljs": "0.3.0"
-  },
   "packageManager": "yarn@1.22.22+sha512.a6b2f7906b721bba3d67d4aff083df04dad64c399707841b7acf00f6b133b7ac24255f2652fa22ae3534329dc6180534e98d17432037ff6fd140556e2bb3137e"
 }