ci: Test in Bun

.github/workflows/bun-test.yml

@@ -0,0 +1,32 @@
+name: Bun CI
+
+on:
+    push:
+        branches:
+            - main
+    pull_request:
+        branches:
+            - main
+
+jobs:
+    build:
+        runs-on: ${{ matrix.os }}
+
+        strategy:
+            matrix:
+                os: [windows-latest, macOS-latest, ubuntu-latest]
+                bun: [latest]
+
+        steps:
+            - uses: actions/checkout@v4
+            - name: Use Bun ${{ matrix.bun }} ${{ matrix.os }}
+              uses: oven-sh/setup-bun@v2
+              with:
+                  bun-version: ${{ matrix.bun }}
+            - name: bun install, build, and test
+              run: |
+                  bun install
+                  bun run --bun build
+                  bun run --bun test
+              env:
+                  CI: true

.gitignore

@@ -134,3 +134,4 @@ dist
 
 package-lock.json
 yarn.lock
+bun.lockb

packages/config-array/tests/config-array.test.js

@@ -3294,9 +3294,11 @@ describe("ConfigArray", () => {
 
 		describe("push()", () => {
 			it("should throw an error when normalized", () => {
+				// Note: In Node.js the error message contains the word "extensible"
+				// In Bun the error message contains the word "readonly"
 				assert.throws(() => {
 					configs.push({});
-				}, /extensible/u);
+				}, /extensible|readonly/u);
 			});
 		});
 	});