"""Tests for security utilities - simplified version."""

import pytest


class TestPasswordHashing:
    """Test password hashing concepts (using passlib if available)."""

    def test_password_hash_generates_string(self):
        """Test that password hashing returns a string."""
        try:
            from passlib.context import CryptContext

            pwd_context = CryptContext(schemes=["pbkdf2_sha256"], deprecated="auto")
            password = "testpassword123"
            hashed = pwd_context.hash(password)
            assert isinstance(hashed, str)
            assert len(hashed) > 0
        except ImportError:
            pytest.skip("passlib not installed")

    def test_password_verification(self):
        """Test password verification works."""
        try:
            from passlib.context import CryptContext

            pwd_context = CryptContext(schemes=["pbkdf2_sha256"], deprecated="auto")
            password = "testpassword123"
            hashed = pwd_context.hash(password)
            assert pwd_context.verify(password, hashed) is True
        except ImportError:
            pytest.skip("passlib not installed")


class TestInputValidation:
    """Test input validation concepts."""

    def test_email_format_validation(self):
        """Test email format is validated."""
        import re

        email_pattern = r"^[^@\s]+@[^@\s]+\.[^@\s]+$"
        valid_emails = ["test@example.com", "user.name@domain.org"]
        invalid_emails = ["notanemail", "@nodomain.com", "noat.com"]

        for email in valid_emails:
            assert re.match(email_pattern, email) is not None

        for email in invalid_emails:
            assert re.match(email_pattern, email) is None

    def test_password_minimum_length(self):
        """Test password minimum length check."""

        def validate_password_length(password: str, min_length: int = 8) -> bool:
            return len(password) >= min_length

        assert validate_password_length("short") is False
        assert validate_password_length("longenough") is True