CSV Import Validation

Use Case / Feature Type: CSV Import

Context: A user uploads a CSV file for data import.

Acceptance Criteria:

• Given a CSV file with correct headers
• When the file is uploaded
• Then valid rows are imported and invalid rows are flagged with row number and reason

Edge Cases:

• Missing required columns
• Extra or missing columns
• Encoding errors (e.g., UTF-8 BOM)
• Duplicate entries
• Invalid data types
• Trailing rows

Non-Functional Hooks: Process files up to 10,000 rows within 60 seconds; memory usage under 512 MB; detailed error reporting without exposing sensitive data; handle concurrency gracefully.

Related Stories: Data Migration.