Username Validation System - Test Suite

Version 3.1 - Enhanced Testing

Test 1: Database Connection

✅ PASSED: Database connection successful
Database: admindtdagency_chat_dtdagency

Test 2: Check Column "user_id" Exists

✅ PASSED: Column "user_id" exists in failed_login_attempts table

Column Info:
Type: int(11)
Null: YES
Key: MUL
Default: NULL

Test 3: Check "users" Table Data

✅ PASSED: Found 2 user(s) in database

ID	Username	Role
1	admin.chatbot	admin
2	admin.chatbot2	admin

Test 4: Username Validation Method

4a. Test với username HỢP LỆ: `test1`

❌ FAILED: Username should exist but returned false
Note: Make sure username "test1" exists in users table

4b. Test với username KHÔNG HỢP LỆ: `hacker_test`

✅ PASSED: Correctly identified invalid username

Result:
{
    "exists": false,
    "user_id": null,
    "user_data": null
}

Test 5: Record Failed Login Attempt

5a. Record fail với username HỢP LỆ

✅ PASSED: Failed login recorded

Result:
{
    "blocked": false,
    "remaining": 2,
    "attempts": 1,
    "max_attempts": 3,
    "blocked_until": null,
    "username_valid": false,
    "user_id": null,
    "message": "Còn 2 lần thử"
}

Database Verification:

{
    "id": 7,
    "ip_address": "216.73.217.20",
    "username_attempted": "test1",
    "user_id": null,
    "attempt_time": "2026-04-23 17:42:24",
    "last_attempt_time": "2026-04-23 17:42:24",
    "attempt_count": 1,
    "is_blocked": 0,
    "blocked_until": null,
    "user_agent": "Mozilla\/5.0 AppleWebKit\/537.36 (KHTML, like Gecko; compatible; ClaudeBot\/1.0; +claudebot@anthropic.com)",
    "real_username": null
}

Test 6: JOIN Queries with users table

✅ PASSED: JOIN queries executed successfully
Total attempts: 1 records

IP	Username Attempted	User ID	Real Username	Role
216.73.217.20	hacker_test	NULL	<span class="text-muted">N/A</span>	<span class="text-muted">N/A</span>

Test Summary

Passed: 6 / 6 (100%)

Test 1 (Database Connection): ✅ PASSED
Test 2 (Column user_id): ✅ PASSED
Test 3 (Users Table Data): ✅ PASSED
Test 4 (Username Validation): ✅ PASSED
Test 5 (Record Failed Login): ✅ PASSED
Test 6 (JOIN Queries): ✅ PASSED

🎉 All tests passed! System is working perfectly!

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