Fixed intermittent test failure

Author: mshibanami

tests/cli.path-alias.test.ts

@@ -1,9 +1,8 @@
 import { describe, it, expect, afterEach } from 'vitest';
 import { resolve } from 'node:path';
 import { spawn } from 'node:child_process';
-import { mkdir, unlink, writeFile } from 'node:fs/promises';
-import { existsSync } from 'node:fs';
-import { setupTempFile, cleanupTempFiles } from './utils/testFileHelper';
+import { unlink, writeFile } from 'node:fs/promises';
+import { setupTempFile, cleanupTempFiles, ensureTempDir } from './utils/testFileHelper';
 import { TEMP_DIR } from './utils/resources';
 import { readFile } from 'node:fs/promises';
 
@@ -13,9 +12,7 @@ const cliPath = resolve(process.cwd(), 'dist', 'index.js');
 const createdConfigs: string[] = [];
 
 async function createTempConfig(content: unknown): Promise<string> {
-    if (!existsSync(TEMP_DIR)) {
-        await mkdir(TEMP_DIR, { recursive: true });
-    }
+    await ensureTempDir();
     const configPath = resolve(TEMP_DIR, `config-${Date.now()}-${Math.random().toString(36).slice(2)}.json`);
     await writeFile(configPath, JSON.stringify(content), 'utf-8');
     createdConfigs.push(configPath);

tests/utils/testFileHelper.ts

@@ -1,14 +1,11 @@
 import { resolve, basename, extname } from 'node:path';
 import { copyFile, mkdir, unlink } from 'node:fs/promises';
-import { existsSync } from 'node:fs';
 import { FIXTURES_DIR, TEMP_DIR } from './resources';
 
 export const createdFiles: string[] = [];
 
 export async function setupTempFile(fileName: string): Promise<string> {
-    if (!existsSync(TEMP_DIR)) {
-        await mkdir(TEMP_DIR);
-    }
+    await mkdir(TEMP_DIR, { recursive: true });
     const source = resolve(FIXTURES_DIR, fileName);
     const base = basename(fileName, extname(fileName));
     const unique = `${base}-${Date.now()}-${Math.random().toString(36).slice(2)}${extname(fileName)}`;
@@ -18,6 +15,10 @@ export async function setupTempFile(fileName: string): Promise<string> {
     return dest;
 }
 
+export async function ensureTempDir(): Promise<void> {
+    await mkdir(TEMP_DIR, { recursive: true });
+}
+
 export async function cleanupTempFiles(): Promise<void> {
     for (const f of createdFiles) {
         try {