# Copyright 2023 (c) Anna Schumaker.
"""Tests our Open button."""
import emmental.header.open
import pathlib
import unittest
from gi.repository import Gio
from gi.repository import Gtk


class TestButton(unittest.TestCase):
    """Test the Open button."""

    def setUp(self):
        """Set up common variables."""
        self.button = emmental.header.open.Button()

    def test_button(self):
        """Check that the button was set up properly."""
        self.assertIsInstance(self.button, Gtk.Button)
        self.assertEqual(self.button.get_icon_name(), "document-open-symbolic")
        self.assertEqual(self.button.get_tooltip_text(),
                         "open a file for playback")

    def test_filter(self):
        """Check that the file filter is set up properly."""
        self.assertIsInstance(self.button._filter, Gtk.FileFilter)
        self.assertIsInstance(self.button._filters, Gio.ListStore)

        self.assertEqual(self.button._filter.get_name(), "Audio Files")
        self.assertEqual(self.button._filters[0], self.button._filter)

    def test_dialog(self):
        """Check that the file dialog is set up properly."""
        self.assertIsInstance(self.button._dialog, Gtk.FileDialog)
        self.assertEqual(self.button._dialog.get_title(), "Pick a Track")
        self.assertEqual(self.button._dialog.get_filters(),
                         self.button._filters)
        self.assertTrue(self.button._dialog.get_modal())

    def test_clicked(self):
        """Test clicking on the button."""
        with unittest.mock.patch.object(self.button._dialog,
                                        "open") as mock_open:
            self.button.emit("clicked")
            mock_open.assert_called_with(None, None,
                                         self.button._Button__async_ready)

        with unittest.mock.patch.object(self.button._dialog,
                                        "open_finish") as mock_finish:
            task = Gio.Task()
            signal = unittest.mock.Mock()
            mock_finish.return_value = Gio.File.new_for_path("/a/b/c/1.ogg")
            self.button.connect("track-requested", signal)

            self.button._Button__async_ready(self.button._dialog, task)
            mock_finish.assert_called_with(task)
            signal.assert_called_with(self.button,
                                      pathlib.Path("/a/b/c/1.ogg"))