openlp/tests/functional/openlp_plugins/media/test_mediaplugin.py

# -*- coding: utf-8 -*-
# vim: autoindent shiftwidth=4 expandtab textwidth=120 tabstop=4 softtabstop=4

###############################################################################
# OpenLP - Open Source Lyrics Projection                                      #
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# Copyright (c) 2008-2017 OpenLP Developers                                   #
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"""
Test the media plugin
"""
from unittest import TestCase
from unittest.mock import MagicMock, patch

from openlp.core import Registry
from openlp.plugins.media.mediaplugin import MediaPlugin, process_check_binary

from tests.helpers.testmixin import TestMixin


class MediaPluginTest(TestCase, TestMixin):
    """
    Test the media plugin
    """
    def setUp(self):
        Registry.create()

    @patch('openlp.plugins.media.mediaplugin.Plugin.initialise')
    def test_initialise(self, mocked_initialise):
        """
        Test that the initialise() method overwrites the built-in one, but still calls it
        """
        # GIVEN: A media plugin instance
        media_plugin = MediaPlugin()

        # WHEN: initialise() is called
        media_plugin.initialise()

        # THEN: The the base initialise() method should be called
        mocked_initialise.assert_called_with()

    def test_about_text(self):
        # GIVEN: The MediaPlugin
        # WHEN: Retrieving the about text
        # THEN: about() should return a string object
        self.assertIsInstance(MediaPlugin.about(), str)
        # THEN: about() should return a non-empty string
        self.assertNotEquals(len(MediaPlugin.about()), 0)

    @patch('openlp.plugins.media.mediaplugin.check_binary_exists')
    def test_process_check_binary_pass(self, mocked_checked_binary_exists):
        """
        Test that the Process check returns true if found
        """
        # GIVEN: A media plugin instance
        # WHEN: function is called with the correct name
        mocked_checked_binary_exists.return_value = str.encode('MediaInfo Command line')
        result = process_check_binary('MediaInfo')

        # THEN: The the result should be True
        self.assertTrue(result, 'Mediainfo should have been found')

    @patch('openlp.plugins.media.mediaplugin.check_binary_exists')
    def test_process_check_binary_fail(self, mocked_checked_binary_exists):
        """
        Test that the Process check returns false if not found
        """
        # GIVEN: A media plugin instance
        # WHEN: function is called with the wrong name
        mocked_checked_binary_exists.return_value = str.encode('MediaInfo1 Command line')
        result = process_check_binary("MediaInfo1")

        # THEN: The the result should be True
        self.assertFalse(result, "Mediainfo should not have been found")