Rewrite build/test setup and hopefully fix ESM compat

.github/workflows/test.yml

@@ -29,7 +29,7 @@ jobs:
 
       # Read existing version, reuse that, add a Git short hash
       - name: Set build version to Git commit
-        run: node scripts/writeGitVersion.js $(git rev-parse --short HEAD)
+        run: node scripts/writeGitVersion.mjs $(git rev-parse --short HEAD)
 
       - name: Check updated version
         run: jq .version package.json
@@ -143,3 +143,10 @@ jobs:
       - name: Run test step
         working-directory: ./redux-toolkit/examples/publish-ci/${{ matrix.example }}
         run: yarn test
+        if: matrix.example != 'are-the-types-wrong'
+
+      - name: Run test step
+        working-directory: ./redux-toolkit/examples/publish-ci/${{ matrix.example }}
+        # Ignore "FalseCJS" errors in the `attw` job
+        run: yarn test -n FalseCJS
+        if: matrix.example == 'are-the-types-wrong'

package.json

@@ -14,24 +14,24 @@
     "flux"
   ],
   "author": "Dan Abramov <dan.abramov@me.com>",
-  "type": "module",
-  "main": "lib/index.js",
-  "module": "es/index.js",
-  "types": "es/index.d.ts",
+  "main": "dist/cjs/index.cjs",
+  "module": "dist/index.mjs",
+  "types": "dist/index.d.ts",
   "exports": {
     "./package.json": "./package.json",
     ".": {
-      "types": "./es/index.d.ts",
-      "import": "./es/index.js",
-      "default": "./lib/index.js"
+      "types": "./dist/index.d.ts",
+      "import": "./dist/index.mjs",
+      "default": "./dist/cjs/index.cjs"
+    },
+    "./extend-redux": {
+      "types": "./extend-redux.d.ts"
     }
   },
   "sideEffects": false,
   "files": [
-    "lib",
-    "es",
-    "src",
     "dist",
+    "src",
     "extend-redux.d.ts"
   ],
   "scripts": {
@@ -40,47 +40,28 @@
     "format": "prettier --write \"{src,test,typescript_test}/**/*.{js,ts}\"",
     "format:check": "prettier --check \"{src,test,typescript_test}/**/*.{js,ts}\"",
     "lint": "eslint \"{src,test,typescript_test}/**/*.{js,ts}\"",
-    "test": "jest",
-    "test:cov": "jest --coverage",
+    "test": "vitest run",
+    "test:cov": "vitest run --coverage",
     "test:typescript": "yarn test:typescript:main && yarn test:typescript:extended",
     "test:typescript:main": "tsc --noEmit -p typescript_test/tsconfig.json",
     "test:typescript:extended": "tsc --noEmit -p typescript_test/typescript_extended/tsconfig.json",
-    "build:commonjs": "cross-env BABEL_ENV=commonjs babel src/*.ts --ignore src/types.ts --extensions .ts --out-dir lib ",
-    "build:es": "babel src/*.ts --ignore src/types.ts --extensions .ts --out-dir es",
-    "build:umd": "cross-env NODE_ENV=development rollup -c -o dist/redux-thunk.js",
-    "build:umd:min": "cross-env NODE_ENV=production rollup -c -o dist/redux-thunk.min.js",
-    "build:types": "tsc",
-    "build": "rimraf dist lib es && yarn build:types && yarn build:commonjs && yarn build:es && yarn build:umd && yarn build:umd:min",
-    "api-types": "api-extractor run --local",
+    "build": "tsup",
     "prepack": "yarn build"
   },
   "peerDependencies": {
     "redux": "^4"
   },
   "devDependencies": {
-    "@babel/cli": "^7.15.7",
-    "@babel/core": "^7.15.8",
-    "@babel/preset-env": "^7.15.8",
-    "@babel/preset-typescript": "^7.15.0",
-    "@babel/register": "^7.15.3",
-    "@microsoft/api-extractor": "^7.18.16",
-    "@rollup/plugin-babel": "^5.3.0",
-    "@rollup/plugin-commonjs": "^21.0.1",
-    "@rollup/plugin-node-resolve": "^13.0.6",
-    "@rollup/plugin-replace": "^3.0.0",
-    "@types/jest": "^27.0.2",
     "@typescript-eslint/eslint-plugin": "^5.1.0",
     "@typescript-eslint/parser": "^5.1.0",
     "cross-env": "^7.0.3",
     "eslint": "^7.32.0",
     "eslint-config-prettier": "^8.3.0",
-    "jest": "^27.3.1",
     "prettier": "^2.4.1",
     "redux": "^4",
     "rimraf": "^3.0.2",
-    "rollup": "^2.58.1",
-    "rollup-plugin-terser": "^7.0.2",
-    "ts-jest": "27.0.7",
-    "typescript": "^4.4"
+    "tsup": "^6.7.0",
+    "typescript": "^4.4",
+    "vitest": "^0.29.8"
   }
 }

test/test.ts

@@ -1,4 +1,4 @@
-import { thunk as thunkMiddleware, withExtraArgument } from '../src/index'
+import { thunk as thunkMiddleware, withExtraArgument } from 'redux-thunk'
 
 describe('thunk middleware', () => {
   const doDispatch = () => {}
@@ -23,24 +23,22 @@ describe('thunk middleware', () => {
     })
 
     describe('handle action', () => {
-      it('must run the given action function with dispatch and getState', done => {
+      it('must run the given action function with dispatch and getState', () => {
         // @ts-ignore
         const actionHandler = nextHandler()
 
         actionHandler((dispatch: any, getState: any) => {
           expect(dispatch).toBe(doDispatch)
           expect(getState).toBe(doGetState)
-          done()
         })
       })
 
-      it('must pass action to next if not a function', done => {
+      it('must pass action to next if not a function', () => {
         const actionObj = {}
 
         // @ts-ignore
         const actionHandler = nextHandler(action => {
           expect(action).toBe(actionObj)
-          done()
         })
 
         actionHandler(actionObj)
@@ -78,18 +76,16 @@ describe('thunk middleware', () => {
   })
 
   describe('handle errors', () => {
-    it('must throw if argument is non-object', done => {
+    it('must throw if argument is non-object', () => {
       try {
         // @ts-expect-error
         thunkMiddleware()
-      } catch (err) {
-        done()
-      }
+      } catch (err) {}
     })
   })
 
   describe('withExtraArgument', () => {
-    it('must pass the third argument', done => {
+    it('must pass the third argument', () => {
       const extraArg = { lol: true }
       // @ts-ignore
       withExtraArgument(extraArg)({
@@ -99,7 +95,6 @@ describe('thunk middleware', () => {
         expect(dispatch).toBe(doDispatch)
         expect(getState).toBe(doGetState)
         expect(arg).toBe(extraArg)
-        done()
       })
     })
   })

tsconfig.json

@@ -10,10 +10,15 @@
     "jsx": "react",
     "declaration": true,
     "emitDeclarationOnly": true,
-    "outDir": "./es",
     "forceConsistentCasingInFileNames": true,
     "experimentalDecorators": true,
-    "rootDirs": ["./src", "./test"]
+    "rootDirs": ["./src", "./test"],
+    "types": ["vitest/globals"],    
+    "baseUrl": ".",
+    "paths": {
+      "redux-thunk": ["src/index.ts"], // @remap-prod-remove-line
+      "@internal/*": ["src/*"]
+    }
   },
   "include": ["src/**/*"],
   "exclude": ["node_modules", "dist"]

tsup.config.ts

@@ -0,0 +1,24 @@
+import { defineConfig, Options } from 'tsup'
+
+export default defineConfig(options => {
+  const commonOptions: Partial<Options> = {
+    entry: ['src/index.ts'],
+    ...options
+  }
+
+  return [
+    {
+      ...commonOptions,
+      format: ['esm'],
+      outExtension: () => ({ js: '.mjs' }),
+      dts: true,
+      clean: true
+    },
+    {
+      ...commonOptions,
+      format: 'cjs',
+      outDir: './dist/cjs/',
+      outExtension: () => ({ js: '.cjs' })
+    }
+  ]
+})

vitest.config.ts

@@ -0,0 +1,17 @@
+import { defineConfig } from 'vitest/config'
+
+export default defineConfig({
+  test: {
+    globals: true,
+    include: ['./test/test.ts'],
+    alias: {
+      'redux-thunk': './src/index.ts', // @remap-prod-remove-line
+
+      // this mapping is disabled as we want `dist` imports in the tests only to be used for "type-only" imports which don't play a role for jest
+      '@internal/': './src/'
+    },
+    deps: {
+      interopDefault: true
+    }
+  }
+})