"""Tests for abacus_file_upload.utils.response module."""

from abacus_file_upload.utils.response import validation_error


class TestValidationError:
    """Tests for validation_error function."""

    def test_validation_error_returns_400(self):
        """Test validation_error returns 400 status code."""
        result = validation_error('Test error message')

        assert result.status == 400
        assert result.message == 'Test error message'

    def test_validation_error_with_empty_string(self):
        """Test validation_error handles empty string."""
        result = validation_error('')

        assert result.status == 400
        assert result.message == ''

    def test_validation_error_with_complex_message(self):
        """Test validation_error handles complex error messages."""
        message = "Validation failed: {'field': ['error1', 'error2']}"
        result = validation_error(message)

        assert result.status == 400
        assert result.message == message

    def test_validation_error_with_multiline_message(self):
        """Test validation_error handles multiline messages."""
        message = """Line 1
Line 2
Line 3"""
        result = validation_error(message)

        assert result.status == 400
        assert result.message == message

    def test_validation_error_return_type(self):
        """Test validation_error returns Response object."""
        result = validation_error('Test')

        # Check that it has Response attributes
        assert hasattr(result, 'status')
        assert hasattr(result, 'message')