openlp/tests/openlp_plugins/images/test_imagetab.py

# -*- coding: utf-8 -*-

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# OpenLP - Open Source Lyrics Projection                                 #
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"""
This module contains tests for the lib submodule of the Images plugin.
"""
import pytest
from unittest.mock import MagicMock

from openlp.core.common.registry import Registry
from openlp.core.common.enum import ImageThemeMode
from openlp.plugins.images.lib.imagetab import ImageTab


@pytest.fixture()
def form(settings):
    Registry().register('settings_form', MagicMock())
    frm = ImageTab(None, 'Images', None, None)
    frm.settings_form.register_post_process = MagicMock()
    return frm


def test_save_tab_nochange(form):
    """
    Test no changes does not trigger post processing
    """
    # GIVEN: No changes on the form.
    # WHEN: the save is invoked
    form.save()
    # THEN: the post process should not be requested
    assert 0 == form.settings_form.register_post_process.call_count, \
        'Image Post processing should not have been requested'


def test_save_tab_theme_change(form):
    """
    Test a theme change is applied and triggers post processing.
    """
    # GIVEN: Apply a change to the form.
    form.theme_combo_box.currentText = MagicMock(return_value='my_theme')
    form.on_image_theme_changed()
    # WHEN: the save is invoked
    form.save()
    # THEN: the post process should be requested
    assert 1 == form.settings_form.register_post_process.call_count, \
        'Image Post processing should have been requested'
    # THEN: The theme should be set
    assert form.image_theme == 'my_theme', 'The updated theme should have been saved'


def test_save_tab_theme_mode_change(form):
    """
    Test a theme change is applied and triggers post processing.
    """
    # GIVEN: Apply a change to the form.
    form.radio_group.id = MagicMock(return_value=ImageThemeMode.CustomTheme)
    form.on_radio_group_button_toggled('radio_thing', True)
    # WHEN: the save is invoked
    form.save()
    # THEN: the post process should be requested
    assert 1 == form.settings_form.register_post_process.call_count, \
        'Image Post processing should have been requested'
    # THEN: The theme should be set
    assert form.background_mode == ImageThemeMode.CustomTheme, 'The updated background mode should have been saved'