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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Test Field-Specific Error Handling</title>
<style>
body {
font-family: Arial, sans-serif;
max-width: 800px;
margin: 0 auto;
padding: 20px;
background: #f5f5f5;
}
.test-section {
background: white;
padding: 20px;
margin: 20px 0;
border-radius: 8px;
box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}
.test-case {
margin: 10px 0;
padding: 15px;
border-left: 4px solid #ddd;
background: #f9f9f9;
}
.test-case.pass {
border-left-color: #10b981;
background: #f0fdf4;
}
.test-case.fail {
border-left-color: #ef4444;
background: #fef2f2;
}
.error-demo {
background: #fee2e2;
border: 1px solid #ef4444;
border-radius: 4px;
padding: 10px;
margin: 10px 0;
color: #991b1b;
}
.success-demo {
background: #d1fae5;
border: 1px solid #10b981;
border-radius: 4px;
padding: 10px;
margin: 10px 0;
color: #065f46;
}
.field-error {
font-size: 12px;
color: #ef4444;
margin-top: 4px;
}
.test-button {
background: #7c3aed;
color: white;
border: none;
padding: 10px 20px;
border-radius: 4px;
cursor: pointer;
margin: 5px;
}
.test-button:hover {
background: #5b21b6;
}
</style>
</head>
<body>
<h1>🔧 Test Field-Specific Error Handling</h1>
<p>This page tests the field-specific error handling implementation for the registration form.</p>
<div class="test-section">
<h2>🎯 What Should Happen Now</h2>
<p><strong>Before Fix:</strong> Generic "Registration failed. Please try again." banner at the top</p>
<div class="error-demo">
❌ Registration failed. Please try again.
</div>
<p><strong>After Fix:</strong> Specific field errors below each problematic field</p>
<div class="success-demo">
✅ Username: "This username is already taken. Please choose another." (below username field)
<br>✅ Email: "This email is already registered. Please use a different email." (below email field)
<br>✅ Phone: "This phone number is already registered. Please use a different phone number." (below phone field)
</div>
</div>
<div class="test-section">
<h2>🧪 Test Cases to Try</h2>
<div class="test-case">
<h3>Test 1: Duplicate Username</h3>
<p>Try registering with an existing username (e.g., "admin", "test", "user")</p>
<p><strong>Expected:</strong> Red error message below username field: "This username is already taken. Please choose another."</p>
<p><strong>No generic banner should appear at the top</strong></p>
</div>
<div class="test-case">
<h3>Test 2: Duplicate Email</h3>
<p>Try registering with an existing email address</p>
<p><strong>Expected:</strong> Red error message below email field: "This email is already registered. Please use a different email."</p>
<p><strong>No generic banner should appear at the top</strong></p>
</div>
<div class="test-case">
<h3>Test 3: Duplicate Phone Number</h3>
<p>Try registering with an existing phone number</p>
<p><strong>Expected:</strong> Red error message below phone field: "This phone number is already registered. Please use a different phone number."</p>
<p><strong>No generic banner should appear at the top</strong></p>
</div>
<div class="test-case">
<h3>Test 4: Multiple Field Errors</h3>
<p>Try registering with multiple invalid fields (e.g., invalid email + weak password)</p>
<p><strong>Expected:</strong> Multiple red error messages below respective fields</p>
<p><strong>No generic banner should appear at the top</strong></p>
</div>
<div class="test-case">
<h3>Test 5: Validation Errors</h3>
<p>Try submitting with empty fields or invalid formats</p>
<p><strong>Expected:</strong> Specific error messages below each invalid field</p>
<p><strong>No generic banner should appear at the top</strong></p>
</div>
</div>
<div class="test-section">
<h2>🚀 How to Test</h2>
<ol>
<li><strong>Start the servers:</strong>
<br><code>python app.py</code> (Backend on port 7060)
<br><code>python run_frontend.py</code> (Frontend on port 8000)
</li>
<li><strong>Open registration form:</strong> <code>https://prodevroger-ishingiro.hf.space/register</code></li>
<li><strong>Open browser developer tools:</strong> Press F12 to see console logs</li>
<li><strong>Try the test cases above</strong></li>
<li><strong>Verify:</strong>
<ul>
<li>No generic "Registration failed" banner appears at the top</li>
<li>Specific error messages appear below each problematic field</li>
<li>Red borders appear around fields with errors</li>
<li>Console shows detailed error parsing logs</li>
</ul>
</li>
</ol>
</div>
<div class="test-section">
<h2>🔍 Debug Information</h2>
<p>Open browser developer tools (F12) and check the console for these logs:</p>
<ul>
<li><code>Registration error:</code> - Shows the full error object</li>
<li><code>Parsed error data:</code> - Shows parsed JSON error response</li>
<li><code>Server errors:</code> - Shows field-specific errors from server</li>
<code>Showing error for field [fieldId]: [error message]</code> - Shows which field gets which error
</ul>
</div>
<div class="test-section">
<h2>✅ Success Criteria</h2>
<div class="success-demo">
<strong>✅ SUCCESS:</strong> Each field shows its specific error message below the field with red border. No generic error banner appears at the top of the form.
</div>
<div class="error-demo">
<strong>❌ FAILURE:</strong> Generic "Registration failed. Please try again." banner appears at the top of the form.
</div>
</div>
<div class="test-section">
<h2>🛠️ Technical Implementation</h2>
<h3>Backend Changes (app.py)</h3>
<ul>
<li>Returns structured error responses: <code>{"errors": {"field": "message"}}</code></li>
<li>Field-specific validation for all inputs</li>
<li>Duplicate check errors for username, email, phone</li>
</ul>
<h3>Frontend Changes (register.js)</h3>
<ul>
<li>Parses structured error responses from backend</li>
<li>Shows field-specific errors below each field</li>
<li>Clears generic error messages when showing field errors</li>
<li>Visual error/success states for fields</li>
</ul>
<h3>Error Flow</h3>
<ol>
<li>User submits form with errors</li>
<li>Backend validates and returns <code>{"errors": {"field": "message"}}</code></li>
<li>Frontend parses error response</li>
<li>Frontend clears any generic error messages</li>
<li>Frontend shows specific error below each field</li>
<li>No generic banner appears at the top</li>
</ol>
</div>
<script>
// Demo function to show expected behavior
function demonstrateExpectedBehavior() {
console.log('=== EXPECTED BEHAVIOR ===');
console.log('✅ Field-specific errors below each field');
console.log('✅ Red borders around invalid fields');
console.log('✅ No generic error banner at the top');
console.log('✅ Console logs show error parsing details');
console.log('=== ERROR EXAMPLES ===');
console.log('Username error: "This username is already taken. Please choose another."');
console.log('Email error: "This email is already registered. Please use a different email."');
console.log('Phone error: "This phone number is already registered. Please use a different phone number."');
}
// Run demonstration
demonstrateExpectedBehavior();
</script>
</body>
</html>
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