diff --git a/tests/lib/rules/jsx-filename-extension.js b/tests/lib/rules/jsx-filename-extension.js
index 96c71ec9e5..fd325af04b 100644
--- a/tests/lib/rules/jsx-filename-extension.js
+++ b/tests/lib/rules/jsx-filename-extension.js
@@ -87,6 +87,11 @@ ruleTester.run('jsx-filename-extension', rule, {
       code: withoutJSX,
       options: [{allow: 'as-needed'}],
       errors: [{message: 'Only files containing JSX may use the extension \'.jsx\''}]
+    }, {
+      filename: 'notAComponent.js',
+      code: withJSXElement,
+      options: [{allow: 'as-needed'}],
+      errors: [{message: 'JSX not allowed in files with extension \'.js\''}]
     }, {
       filename: 'MyComponent.jsx',
       code: withJSXElement,