# Copyright 2022 (c) Anna Schumaker.
"""Test as much as we can of the Emmental Application."""
import unittest
import unittest.mock
import gi
import emmental


class TestEmmental(unittest.TestCase):
    """Emmental Application test case."""

    def setUp(self):
        """Set up common variables."""
        self.application = emmental.Application()

    def tearDown(self):
        """Clean up."""
        self.application.do_shutdown()

    def test_version(self):
        """Check that version constants have been set properly."""
        self.assertEqual(emmental.MAJOR_VERSION, 3)
        self.assertEqual(emmental.MINOR_VERSION, 0)
        self.assertEqual(emmental.VERSION_STRING, "Emmental 3.0-debug")

    def test_application(self):
        """Check that the application instance is initialized properly."""
        self.assertIsInstance(self.application, gi.repository.Adw.Application)
        self.assertEqual(self.application.get_application_id(),
                         "com.nowheycreamery.emmental-debug")
        self.assertEqual(self.application.get_property("resource-base-path"),
                         "/com/nowheycreamery/emmental")

    @unittest.mock.patch("emmental.db.Connection.load")
    @unittest.mock.patch("gi.repository.Adw.Application.do_startup")
    def test_startup(self, mock_startup: unittest.mock.Mock,
                     mock_load: unittest.mock.Mock):
        """Test that the startup signal works as expected."""
        self.assertIsNone(self.application.db)
        self.assertIsNone(self.application.mpris)

        self.application.emit("startup")
        self.assertIsInstance(self.application.db, emmental.db.Connection)
        self.assertIsInstance(self.application.mpris,
                              emmental.mpris2.Connection)

        mock_startup.assert_called()
        mock_load.assert_called()

    def test_shutdown(self):
        """Test that the shutdown signal works as expected."""
        db = self.application.db = emmental.db.Connection()
        mpris = self.application.mpris = emmental.mpris2.Connection()

        self.application.emit("shutdown")
        self.assertIsNone(self.application.db)
        self.assertIsNone(self.application.mpris)

        self.assertIsNone(mpris.dbus)
        self.assertFalse(db.connected)