Require Node.js 20

sindresorhus · sindresorhus · commit edcf97d8e34f · 2025-09-16T03:40:49.000+07:00
diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
@@ -10,7 +10,8 @@ jobs:
       fail-fast: false
       matrix:
         node-version:
-          - 16
+          - 24
+          - 20
     steps:
       - uses: actions/checkout@v5
       - uses: actions/setup-node@v5
diff --git a/index.test-d.ts b/index.test-d.ts
diff --git a/package.json b/package.json
@@ -11,15 +11,17 @@
 		"url": "https://sindresorhus.com"
 	},
 	"type": "module",
-	"exports": "./index.js",
-	"types": "./index.d.ts",
 	"bin": "./cli.js",
+	"exports": {
+		"types": "./index.d.ts",
+		"default": "./index.js"
+	},
 	"sideEffects": false,
 	"engines": {
-		"node": "^12.20.0 || ^14.13.1 || >=16.0.0"
+		"node": ">=20"
 	},
 	"scripts": {
-		"test": "xo && ava && tsd"
+		"test": "xo && node --test"
 	},
 	"files": [
 		"index.js",
@@ -38,10 +40,7 @@
 		"process"
 	],
 	"devDependencies": {
-		"ava": "^3.15.0",
 		"esmock": "^2.7.3",
-		"sinon": "^11.1.2",
-		"tsd": "^0.17.0",
-		"xo": "^0.44.0"
+		"xo": "^1.2.2"
 	}
 }
diff --git a/test.js b/test.js
@@ -1,7 +1,8 @@
-import test from 'ava';
+import {test} from 'node:test';
+import {strict as assert} from 'node:assert';
 import esmock from 'esmock';
 
-test('detects Docker via /.dockerenv', async t => {
+test('detects Docker via /.dockerenv', async () => {
 	const isDocker = await esmock('./index.js', {
 		'node:fs': {
 			statSync(path) {
@@ -17,10 +18,10 @@ test('detects Docker via /.dockerenv', async t => {
 		},
 	});
 
-	t.true(isDocker.default());
+	assert.equal(isDocker.default(), true);
 });
 
-test('detects Docker via /proc/self/cgroup', async t => {
+test('detects Docker via /proc/self/cgroup', async () => {
 	const isDocker = await esmock('./index.js', {
 		'node:fs': {
 			statSync() {
@@ -36,10 +37,10 @@ test('detects Docker via /proc/self/cgroup', async t => {
 		},
 	});
 
-	t.true(isDocker.default());
+	assert.equal(isDocker.default(), true);
 });
 
-test('detects Docker via /proc/self/mountinfo', async t => {
+test('detects Docker via /proc/self/mountinfo', async () => {
 	const isDocker = await esmock('./index.js', {
 		'node:fs': {
 			statSync() {
@@ -59,10 +60,10 @@ test('detects Docker via /proc/self/mountinfo', async t => {
 		},
 	});
 
-	t.true(isDocker.default());
+	assert.equal(isDocker.default(), true);
 });
 
-test('not inside Docker container', async t => {
+test('not inside Docker container', async () => {
 	const isDocker = await esmock('./index.js', {
 		'node:fs': {
 			statSync() {
@@ -74,10 +75,10 @@ test('not inside Docker container', async t => {
 		},
 	});
 
-	t.false(isDocker.default());
+	assert.equal(isDocker.default(), false);
 });
 
-test('caching works correctly', async t => {
+test('caching works correctly', async () => {
 	let statSyncCallCount = 0;
 	let readFileSyncCallCount = 0;
 
@@ -99,12 +100,12 @@ test('caching works correctly', async t => {
 	});
 
 	// First call
-	t.true(isDocker.default());
-	t.is(statSyncCallCount, 1);
-	t.is(readFileSyncCallCount, 1);
+	assert.equal(isDocker.default(), true);
+	assert.equal(statSyncCallCount, 1);
+	assert.equal(readFileSyncCallCount, 1);
 
 	// Second call - should use cache
-	t.true(isDocker.default());
-	t.is(statSyncCallCount, 1); // Should not increase
-	t.is(readFileSyncCallCount, 1); // Should not increase
+	assert.equal(isDocker.default(), true);
+	assert.equal(statSyncCallCount, 1); // Should not increase
+	assert.equal(readFileSyncCallCount, 1); // Should not increase
 });
