Fix data reload timing issue in test server for GET user test

Co-authored-by: kobenguyent <[email protected]>

Author: Copilot

lib/test-server.js

@@ -13,6 +13,7 @@ class TestServer {
     this.port = config.port || 8010
     this.host = config.host || 'localhost'
     this.dbFile = config.dbFile || path.join(__dirname, '../test/data/rest/db.json')
+    this.lastModified = null
     this.data = this.loadData()
 
     this.setupMiddleware()
@@ -24,6 +25,10 @@ class TestServer {
     try {
       const content = fs.readFileSync(this.dbFile, 'utf8')
       const data = JSON.parse(content)
+      // Update lastModified time when loading data
+      if (fs.existsSync(this.dbFile)) {
+        this.lastModified = fs.statSync(this.dbFile).mtime
+      }
       console.log('Loaded data:', data)
       return data
     } catch (err) {
@@ -68,6 +73,23 @@ class TestServer {
       next()
     })
 
+    // Auto-reload middleware - check if file changed before each request
+    this.app.use((req, res, next) => {
+      try {
+        if (fs.existsSync(this.dbFile)) {
+          const stats = fs.statSync(this.dbFile)
+          if (!this.lastModified || stats.mtime > this.lastModified) {
+            console.log('Database file changed, reloading data...')
+            this.reloadData()
+            this.lastModified = stats.mtime
+          }
+        }
+      } catch (err) {
+        console.warn('Error checking file modification time:', err.message)
+      }
+      next()
+    })
+
     // Logging middleware
     this.app.use((req, res, next) => {
       console.log(`${req.method} ${req.path}`)