explorer/fileNameFormGroup: add test

src/explorer/fileNameFormGroup/FileNameFormGroup.test.tsx

@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: MIT
+// Copyright (c) 2022 The Pybricks Authors
+
+import { cleanup } from '@testing-library/react';
+import React from 'react';
+import { testRender } from '../../../test';
+import { FileNameValidationResult } from '../../pybricksMicropython/lib';
+import FileNameFormGroup from './FileNameFormGroup';
+
+afterEach(() => {
+    cleanup();
+});
+
+describe('should handle all possible validation results', () => {
+    it.each(
+        Object.entries(FileNameValidationResult).filter(
+            ([, v]) => typeof v === 'number',
+        ) as [string, FileNameValidationResult][],
+    )('FileNameValidationResult.%s', (_name, result) => {
+        testRender(
+            <FileNameFormGroup
+                fileName="test"
+                fileExtension=".file"
+                validationResult={result}
+                onChange={() => undefined}
+            />,
+        );
+    });
+});