"""Tests for GreetingService."""

from app.services.greeting_service import GreetingService


class TestGreetingService:
    """Test cases for GreetingService."""

    def test_get_greeting_without_name(self) -> None:
        """Test getting greeting without providing a name."""
        result = GreetingService.get_greeting()
        assert result == {"message": "Hello from backend!"}

    def test_get_greeting_with_name(self) -> None:
        """Test getting greeting with a name."""
        result = GreetingService.get_greeting("Alice")
        assert result == {"message": "Hello, Alice!"}

    def test_get_greeting_with_empty_string(self) -> None:
        """Test getting greeting with empty string name."""
        result = GreetingService.get_greeting("")
        assert result == {"message": "Hello from backend!"}