Move bun install and tests to test:bun script.

Bun install fails on some Linux distros, so it needs to be moved to a separate install and test script that is optional. It is still run in the GitHub workflow.

.github/workflows/test.yml

@@ -48,6 +48,9 @@ jobs:
       - name: Unit Tests
         run: npm run test:unit
 
+      - name: Bun Tests
+        run: npm run test:bun
+
       - name: E2E Tests
         run: npm run test:e2e
         if: startsWith(matrix.os, 'ubuntu') && matrix.node == 20

package.json

@@ -30,10 +30,11 @@
     "lint:lockfile": "lockfile-lint",
     "lint:markdown": "markdownlint \"**/*.md\" --ignore \"**/node_modules/**/*.md\" --ignore build --config .markdownlint.js",
     "lint:src": "eslint --cache --cache-location node_modules/.cache/.eslintcache --ignore-path .gitignore --report-unused-disable-directives .",
-    "prepare": "src/scripts/install-hooks && test/bun-setup.sh",
+    "prepare": "src/scripts/install-hooks",
     "prepublishOnly": "npm run build",
     "prettier": "prettier . --check",
     "test": "npm run test:unit && npm run test:e2e",
+    "test:bun": "test/bun-install.sh && mocha test/bun",
     "test:unit": "mocha test test/package-managers/*",
     "test:e2e": "./test/e2e.sh",
     "ncu": "node build/cli.js"

test/bun-setup.sh → test/bun-install.sh

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 # Install bun if not installed.
-# Must be run in a prepare script instead of devDependencies to avoid npm install failing on Windows.
-bun -v &> /dev/null
+# Cannot be added to devDependencies as bun currently does not work on Linux.
+bun -v &>/dev/null
 BUN_EXISTS="$?"
 
 if [ $BUN_EXISTS -ne 0 ]; then

test/package-managers/bun/index.test.ts → test/bun/index.test.ts

@@ -1,12 +1,9 @@
-import os from 'os'
-import * as bun from '../../../src/package-managers/bun'
-import chaiSetup from '../../helpers/chaiSetup'
+import * as bun from '../../src/package-managers/bun'
+import chaiSetup from '../helpers/chaiSetup'
 
 chaiSetup()
 
-// Bun not yet supported on Windows
-const describeSkipWindows = os.platform() === 'win32' ? describe.skip : describe
-describeSkipWindows('bun', function () {
+describe('bun', function () {
   it('list', async () => {
     const result = await bun.list({ cwd: __dirname })
     result.should.have.property('ncu-test-v2')