chore: Went half way through the test for the entry file

src/converter/test/generate-test-utils.test.ts

@@ -0,0 +1,53 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: Apache-2.0
+import { readFileSync, writeFileSync } from 'fs';
+import { describe, test, expect, beforeAll, beforeEach, vi } from 'vitest';
+import { convertToSelectorUtil } from '../convert-to-selectors';
+import { generateTestUtils } from '../generate-test-utils';
+import { ComponentMetadata } from '../interfaces';
+
+vi.mock('fs');
+vi.mock('../convert-to-selectors');
+
+const mockComponents: ComponentMetadata[] = [
+  {
+    name: 'Alert',
+    pluralName: 'Alerts',
+    testUtilsFolderName: '../test-utils',
+  },
+];
+
+describe(`${generateTestUtils.name}`, () => {
+  beforeAll(() => {
+    vi.mocked(readFileSync).mockReturnValue('file content');
+    vi.mocked(convertToSelectorUtil).mockImplementation(input => input);
+  });
+
+  beforeEach(() => {
+    vi.clearAllMocks();
+  });
+
+  test('generates the selector utils for the given dom utils', () => {
+    generateTestUtils({
+      components: mockComponents,
+      testUtilsPath: './test/mock-test-utils',
+    });
+
+    expect(convertToSelectorUtil).toHaveBeenCalledWith('file content');
+  });
+
+  const testUtilsType = ['dom', 'selectors'] as const;
+  test.each(testUtilsType)('generates the index file for %s test utils', testUtilType => {
+    generateTestUtils({
+      components: mockComponents,
+      testUtilsPath: './test/mock-test-utils',
+    });
+
+    const testUtilsFilePartialContent = 'ElementWrapper.prototype.findAlert';
+
+    expect(writeFileSync).toHaveBeenCalledWith(
+      `test/mock-test-utils/${testUtilType}/index.ts`,
+      expect.stringMatching(testUtilsFilePartialContent)
+    );
+  });
+});