diff --git a/test/unit/helpers/afterActiveInstanceBlur.test.js b/test/unit/helpers/afterActiveInstanceBlur.test.js
new file mode 100644
index 00000000..487a24ba
--- /dev/null
+++ b/test/unit/helpers/afterActiveInstanceBlur.test.js
@@ -0,0 +1,15 @@
+import {
+    describe,
+    expect,
+    it,
+} from 'vitest';
+import { afterActiveInstanceBlur } from '../../../lib/helpers/afterActiveInstanceBlur.js';
+
+describe('afterActiveInstanceBlur', () =>
+{
+    it('does nothing', () =>
+    {
+        expect(afterActiveInstanceBlur).to.be.a('function');
+        expect(afterActiveInstanceBlur()).to.be.undefined;
+    });
+});