chore: config jest & eslint

nodejs/.eslintrc.js

@@ -1,6 +1,7 @@
 const path = require('path')
 
-module.exports = {
+/** @type {import('eslint').Linter.Config} */
+const config = {
     "parser": "@typescript-eslint/parser",
     "extends": [
         "eslint:recommended",
@@ -17,10 +18,13 @@ module.exports = {
     },
     "parserOptions": {
       "project": [
-        path.resolve(__dirname, "tsconfig.json")
+        path.resolve(__dirname, "tsconfig.json"),
+        path.resolve(__dirname, "tsconfig.eslint.json")
       ]
     },
     "ignorePatterns": [
       ".eslintrc.js"
     ],
 }
+
+module.exports = config

nodejs/jest.config.ts

@@ -0,0 +1,10 @@
+import type { JestConfigWithTsJest } from "ts-jest"
+
+const customJestConfig: JestConfigWithTsJest = {
+  preset: "ts-jest",
+  testEnvironment: "node",
+  transformIgnorePatterns: ["<rootDir>/node_modules/"],
+  extensionsToTreatAsEsm: [".ts"],
+}
+
+export default customJestConfig

nodejs/package.json

@@ -9,7 +9,8 @@
     "build": "npm run clean && tsc -d",
     "watch": "npm run clean && tsc -w",
     "prepublishOnly": "npm run build",
-    "lint": "eslint src --fix --ext .ts"
+    "lint": "eslint src --fix --ext .ts",
+    "test": "jest"
   },
   "keywords": [
     "HackMD",
@@ -27,6 +28,7 @@
   },
   "license": "MIT",
   "devDependencies": {
+    "@types/eslint": "^8.21.0",
     "@types/jest": "^29.4.0",
     "@types/node": "^13.11.1",
     "@typescript-eslint/eslint-plugin": "^5.52.0",

nodejs/tsconfig.eslint.json

@@ -0,0 +1,6 @@
+{
+  "extends": "./tsconfig.json",
+  "include": [
+    "**/*.ts",
+  ]
+}