# CSV Parser Test Files

This directory contains various test cases for the CSV parser to verify it handles different CSV formats correctly.

## Test Files

### `test.csv` (Basic Test)
Simple CSV with header and data rows containing:
- Regular unquoted fields
- Quoted fields with spaces and commas
- Mixed quoted and unquoted fields

### `complex.csv` (Complex Field Content)
Tests handling of:
- Names with commas and apostrophes
- City names with commas and state abbreviations
- Mixed international data

### `quotes.csv` (Quote Handling)
Tests proper handling of:
- Escaped quotes within quoted fields (`""`)
- Multi-line field content
- Mixed quoted and unquoted fields

### `empty_fields.csv` (Empty Fields)
Tests handling of:
- Empty fields at start, middle, and end of records
- Records with all empty fields
- Mixed empty and populated fields

### `header_only.csv` (Header Only)
Tests parsing of CSV file with only a header row and no data.

### `empty.csv` (Empty File)
Tests parsing of completely empty CSV file.

## Running Tests

From the `src` directory, you can test the parser with any of these files:

```bash
# Test basic functionality
./csv_parser < ../tests/test.csv

# Test complex field handling
./csv_parser < ../tests/complex.csv

# Test quote handling
./csv_parser < ../tests/quotes.csv

# Test empty field handling
./csv_parser < ../tests/empty_fields.csv

# Test header-only files
./csv_parser < ../tests/header_only.csv

# Test empty files
./csv_parser < ../tests/empty.csv
```

## Expected Behavior

The parser should successfully parse all test files and display:
1. "Parsing successful!" message
2. Header information (if present)
3. Record information with proper field separation
4. Proper handling of quoted content and escape sequences