refactor: fix file names 3

Author: John Doe

packages/plugin-eslint/src/lib/meta/rules.int.test.ts

@@ -1,9 +1,11 @@
+import { cp } from 'node:fs/promises';
 import path from 'node:path';
 import { fileURLToPath } from 'node:url';
 import type { MockInstance } from 'vitest';
 import {
   NX_IGNORED_FILES_TO_RESTORE,
   restoreRenamedFiles,
+  teardownTestFolder,
 } from '@code-pushup/test-utils';
 import type { ESLintTarget } from '../config.js';
 import type { RuleData } from './parse.js';
@@ -93,15 +95,30 @@ describe('listRules', () => {
   });
 
   describe('Nx monorepo project', () => {
-    const nxRootDir = path.join(fixturesDir, 'nx-monorepo');
-    const eslintrc = path.join(nxRootDir, 'packages/utils/eslint.config.js');
+    const fixtureNxMonorepoDir = path.join(fixturesDir, 'nx-monorepo');
+    const testNxMonorepoDir = path.join(
+      process.cwd(),
+      'tmp',
+      'plugin-eslint',
+      'rules-test',
+      'nx-monorepo',
+    );
+    const eslintrc = path.join(
+      testNxMonorepoDir,
+      'packages/utils/eslint.config.js',
+    );
 
     const patterns = ['packages/utils/**/*.ts', 'packages/utils/**/*.json'];
     const targets: ESLintTarget[] = [{ eslintrc, patterns }];
 
     beforeAll(async () => {
-      await restoreRenamedFiles(nxRootDir, NX_IGNORED_FILES_TO_RESTORE);
-      cwdSpy.mockReturnValue(nxRootDir);
+      await cp(fixtureNxMonorepoDir, testNxMonorepoDir, { recursive: true });
+      await restoreRenamedFiles(testNxMonorepoDir, NX_IGNORED_FILES_TO_RESTORE);
+      cwdSpy.mockReturnValue(testNxMonorepoDir);
+    });
+
+    afterAll(async () => {
+      await teardownTestFolder(testNxMonorepoDir);
     });
 
     it('should list expected number of rules', async () => {

testing/test-utils/src/lib/utils/test-folder-setup.ts

@@ -48,6 +48,15 @@ export const NX_IGNORED_FILES_TO_RESTORE = [
   '_project.json',
 ] as const;
 
+/**
+ * File names that need to be prefixed with "_" to avoid Nx detection.
+ */
+export const NX_IGNORED_FILES_TO_PREFIX = [
+  'package.json',
+  'nx.json',
+  'project.json',
+] as const;
+
 /**
  * Recursively renames specific files by removing the "_" prefix.
  * This is needed because mock fixtures have "_" prefix to avoid Nx detection,
@@ -80,3 +89,36 @@ export async function restoreRenamedFiles(
     // Ignore errors if directory doesn't exist
   }
 }
+
+/**
+ * Recursively renames specific files by adding the "_" prefix.
+ * This is needed to restore files back to their prefixed state after tests,
+ * so they are excluded from Nx detection.
+ *
+ * @param dir - Directory to process recursively
+ * @param fileNames - Array of file names to prefix (e.g., ['package.json', 'nx.json', 'project.json'])
+ */
+export async function prefixRenamedFiles(
+  dir: string,
+  fileNames: readonly string[],
+): Promise<void> {
+  try {
+    const entries = await readdir(dir, { withFileTypes: true });
+    for (const entry of entries) {
+      const fullPath = path.join(dir, entry.name);
+      if (entry.isDirectory()) {
+        await prefixRenamedFiles(fullPath, fileNames);
+      } else if (entry.isFile() && fileNames.includes(entry.name)) {
+        const newName = `_${entry.name}`;
+        const newPath = path.join(dir, newName);
+        try {
+          await rename(fullPath, newPath);
+        } catch (error) {
+          // Ignore errors if file doesn't exist or can't be renamed
+        }
+      }
+    }
+  } catch (error) {
+    // Ignore errors if directory doesn't exist
+  }
+}