"""Unit tests for docker service utilities."""

from unittest.mock import MagicMock, patch

from src.services.docker import get_container_id, get_container_name


class TestGetContainerId:
    """Tests for get_container_id."""

    @patch("subprocess.run")
    def test_lowercases_name_for_filter(self, mock_run) -> None:
        """Docker ps name filter is case-sensitive; we must lowercase."""
        mock_run.return_value = MagicMock(returncode=0, stdout="abc123\n")

        result = get_container_id("MyContainer-ABC")

        assert result == "abc123"
        call_args = mock_run.call_args[0][0]
        # The filter must use lowercase
        assert "name=mycontainer-abc" in call_args

    @patch("subprocess.run")
    def test_returns_none_when_not_found(self, mock_run) -> None:
        mock_run.return_value = MagicMock(returncode=0, stdout="")

        result = get_container_id("missing")

        assert result is None


class TestGetContainerName:
    """Tests for get_container_name."""

    @patch("subprocess.run")
    def test_lowercases_name_for_filter(self, mock_run) -> None:
        """Docker ps name filter is case-sensitive; we must lowercase."""
        mock_run.return_value = MagicMock(returncode=0, stdout="mycontainer-abc\n")

        result = get_container_name("MyContainer-ABC")

        assert result == "mycontainer-abc"
        call_args = mock_run.call_args[0][0]
        assert "name=mycontainer-abc" in call_args

    @patch("subprocess.run")
    def test_returns_none_when_not_found(self, mock_run) -> None:
        mock_run.return_value = MagicMock(returncode=0, stdout="")

        result = get_container_name("missing")

        assert result is None