chore: switch from jest to vitest (#282)

.github/workflows/coverage.yml

@@ -24,3 +24,4 @@ jobs:
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}
           path-to-lcov: ./coverage/lcov.info
+# cspell:ignore coverallsapp

package.json

@@ -2,31 +2,36 @@
   "name": "gensequence",
   "version": "4.0.3",
   "description": "Small library to simplify working with Generators and Iterators in Javascript / Typescript",
+  "type": "commonjs",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",
+  "exports": {
+    ".": {
+      "require": "./dist/index.js",
+      "import": "./dist/esm/index.mjs"
+    }
+  },
   "engines": {
     "node": ">=14"
   },
   "devDependencies": {
     "@tsconfig/node14": "^1.0.3",
-    "@types/jest": "^28.1.8",
     "@types/node": "^18.11.11",
-    "coveralls": "^3.1.1",
-    "jest": "^28.1.3",
+    "@vitest/coverage-istanbul": "^0.29.1",
     "rimraf": "^4.1.1",
-    "ts-jest": "^28.0.8",
-    "typescript": "^4.9.4"
+    "ts2mjs": "^1.1.1",
+    "typescript": "^4.9.5",
+    "vitest": "^0.29.1"
   },
   "scripts": {
     "prepublishOnly": "npm run clean-build",
     "clean-build": "npm run clean && npm run build",
-    "clean": "rimraf dist",
-    "test": "jest",
+    "clean": "rimraf dist coverage",
+    "test": "vitest run",
     "perf": "jest --testMatch '**/*.perf.ts'",
     "build": "tsc -p .",
     "watch": "tsc -w -p .",
     "coverage": "npm test -- --coverage",
-    "coverage-coveralls": "cat coverage/lcov.info | coveralls",
     "update-packages": "npx npm-check-updates -t minor -u && rimraf node_modules package-lock.json && npm i"
   },
   "repository": {

src/AsyncGenSequence.test.ts

@@ -1,27 +1,29 @@
+import { describe, expect, test } from 'vitest';
+
 import { asyncGenSequence } from './AsyncGenSequence';
 
 describe('AsyncGenSequence Tests', () => {
     test('tests reducing asynchronously a sequence w/o init', async () => {
-        const asyncGenerator = createAsyncGeneratorFor([1, 2, 3, 4, 5])
+        const asyncGenerator = createAsyncGeneratorFor([1, 2, 3, 4, 5]);
         const gs = asyncGenSequence(asyncGenerator);
         const result = await gs.reduceAsync((a, v) => a + v);
         expect(result).toEqual(15);
     });
 
     test('tests reducing asynchronously a sequence with init', async () => {
-        const asyncGenerator = createAsyncGeneratorFor([1, 2, 3, 4, 5])()
+        const asyncGenerator = createAsyncGeneratorFor([1, 2, 3, 4, 5])();
         const gs = asyncGenSequence(asyncGenerator);
         const result = await gs.reduceAsync(async (a, v) => a + v, Promise.resolve(10));
         expect(result).toEqual(25);
     });
 
     test('tests async iterator attribute', async () => {
-        const asyncGenerator = createAsyncGeneratorFor([1, 2, 3])
+        const asyncGenerator = createAsyncGeneratorFor([1, 2, 3]);
         const asyncIterator = asyncGenSequence(asyncGenerator)[Symbol.asyncIterator]();
-        const result1 = await asyncIterator.next()
-        const result2 = await asyncIterator.next()
-        const result3 = await asyncIterator.next()
-        const result4 = await asyncIterator.next()
+        const result1 = await asyncIterator.next();
+        const result2 = await asyncIterator.next();
+        const result3 = await asyncIterator.next();
+        const result4 = await asyncIterator.next();
         expect(result1.value).toEqual(1);
         expect(result1.done).toEqual(false);
         expect(result2.value).toEqual(2);
@@ -36,7 +38,7 @@ describe('AsyncGenSequence Tests', () => {
 function createAsyncGeneratorFor<T>(array: T[]) {
     return async function* asyncGenerator() {
         for (const i of array) {
-            yield i
+            yield i;
         }
-    }
-}
+    };
+}