"""Tests for the Catalogue class, which interacts with the library catalogue."""

import pytest
from pytest_mock import MockerFixture

from src.bibapi.catalogue import Catalogue


class TestCatalogue:
    """Tests for the Catalogue class."""

    def test_check_book_exists(self, mocker: MockerFixture):
        """Test the check_book_exists method of the Catalogue class."""
        catalogue = Catalogue()

        # Mock the get_book_links method to control its output
        mocker.patch.object(
            catalogue,
            "get_book_links",
            return_value=["link1", "link2"],
        )

        # Test with a known existing book
        existing_book_searchterm = "1693321114"
        assert catalogue.check_book_exists(existing_book_searchterm) is True

        # Change the mock to return an empty list for non-existing book
        mocker.patch.object(
            catalogue,
            "get_book_links",
            return_value=[],
        )

        # Test with a known non-existing book
        non_existing_book_searchterm = "00000000009"
        assert catalogue.check_book_exists(non_existing_book_searchterm) is False

    def test_no_connection_raises_error(self, mocker: MockerFixture):
        """Test that a ConnectionError is raised when there is no internet connection."""
        # Mock the check_connection method to simulate no internet connection
        mocker.patch.object(
            Catalogue,
            "check_connection",
            return_value=False,
        )

        with pytest.raises(ConnectionError, match="No internet connection available."):
            Catalogue()