#!/usr/bin/env python3
"""Comprehensive test suite for email_validator.py"""

import sys
from pathlib import Path

sys.path.insert(0, str(Path(__file__).resolve().parent))
from email_validator import is_valid_email, validate_email

# Test cases: (email, expected_valid)
tests = [
    # Valid emails
    ("user@example.com", True),
    ("test.email@domain.co.uk", True),
    ("user+tag@example.org", True),
    ("UPPERCASE@EXAMPLE.COM", True),
    ("user123@test-site.net", True),
    
    # Invalid emails
    ("", False),
    ("invalid", False),
    ("@missing-local.com", False),
    ("missing-at-sign.com", False),
    ("user@", False),
    ("user@.com", False),
    ("   ", False),
    (None, False),
]

all_passed = True
print("Running email validation tests...")
for email, expected in tests:
    result = is_valid_email(email)
    status = "PASS" if result == expected else "FAIL"
    if result != expected:
        all_passed = False
    print(f"  [{status}] {repr(email)}: got {result}, expected {expected}")

print(f"\nAll tests passed: {all_passed}")
sys.exit(0 if all_passed else 1)