test: add test for unmatched flat config case

silvenon · silvenon · commit 2dc00613997a · 2025-05-08T10:20:28.000+02:00
diff --git a/test/cli.test.js b/test/cli.test.js
@@ -1,5 +1,7 @@
 "use strict";
 
+const childProcess = require("child_process");
+const path = require("path");
 const cli = require("../bin/cli");
 
 const offPatterns = [0, "off", [0], ["off"], ["off", "never"]];
@@ -76,6 +78,14 @@ test("no results", () => {
   `);
 });
 
+test("empty config", (done) => {
+  childProcess.exec(
+    `node ${path.join(process.cwd(), "bin/cli.js")} index.js`,
+    { cwd: path.join(__dirname, "fixtures/empty-config") },
+    done
+  );
+});
+
 test("conflicting options", () => {
   const rules = ["strict", ["curly", "multi-line"]];
   expect(cli.processRules(createRules(rules, "error"))).toMatchInlineSnapshot(`
diff --git a/test/fixtures/empty-config/eslint.config.mjs b/test/fixtures/empty-config/eslint.config.mjs
@@ -0,0 +1 @@
+export default [{}];
diff --git a/test/fixtures/empty-config/index.js b/test/fixtures/empty-config/index.js
