Add test code with intentional issues for AI review

test-code.js

@@ -0,0 +1,41 @@
+// Test file with various code issues for CodeBuddy AI to review
+
+// Issue 1: No error handling
+function fetchUser(userId) {
+  return fetch(`https://api.example.com/users/${userId}`)
+    .then(response => response.json());
+}
+
+// Issue 2: SQL injection vulnerability
+function getUser(username) {
+  const query = "SELECT * FROM users WHERE username = '" + username + "'";
+  return db.query(query);
+}
+
+// Issue 3: Inefficient nested loops
+function findDuplicates(arr) {
+  let duplicates = [];
+  for (let i = 0; i < arr.length; i++) {
+    for (let j = i + 1; j < arr.length; j++) {
+      if (arr[i] === arr[j]) {
+        duplicates.push(arr[i]);
+      }
+    }
+  }
+  return duplicates;
+}
+
+// Issue 4: No input validation
+function calculateTotal(items) {
+  let total = 0;
+  for (let i = 0; i < items.length; i++) {
+    total += items[i].price;
+  }
+  return total;
+}
+
+// Issue 5: Hardcoded credentials (security issue)
+const config = {
+  apiKey: "sk-1234567890abcdef",
+  password: "admin123"
+};