openlp/tests/openlp_core/widgets/test_buttons.py
2021-04-24 16:55:38 +00:00

186 lines
7.8 KiB
Python

# -*- coding: utf-8 -*-
##########################################################################
# OpenLP - Open Source Lyrics Projection #
# ---------------------------------------------------------------------- #
# Copyright (c) 2008-2021 OpenLP Developers #
# ---------------------------------------------------------------------- #
# This program is free software: you can redistribute it and/or modify #
# it under the terms of the GNU General Public License as published by #
# the Free Software Foundation, either version 3 of the License, or #
# (at your option) any later version. #
# #
# This program is distributed in the hope that it will be useful, #
# but WITHOUT ANY WARRANTY; without even the implied warranty of #
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
# GNU General Public License for more details. #
# #
# You should have received a copy of the GNU General Public License #
# along with this program. If not, see <https://www.gnu.org/licenses/>. #
##########################################################################
"""
This module contains tests for the openlp.core.widgets.buttons module
"""
import pytest
from unittest.mock import MagicMock, call, patch
from openlp.core.widgets.buttons import ColorButton
@pytest.fixture()
def buttons_env():
change_color_patcher = patch('openlp.core.widgets.buttons.ColorButton.change_color')
clicked_patcher = patch('openlp.core.widgets.buttons.ColorButton.clicked')
color_changed_patcher = patch('openlp.core.widgets.buttons.ColorButton.colorChanged')
qt_gui_patcher = patch('openlp.core.widgets.buttons.QtWidgets')
translate_patcher = patch('openlp.core.widgets.buttons.translate', **{'return_value': 'Tool Tip Text'})
mocked_change_color = change_color_patcher.start()
mocked_clicked = clicked_patcher.start()
mocked_color_changed = color_changed_patcher.start()
mocked_qt_widgets = qt_gui_patcher.start()
translate_patcher.start()
yield mocked_clicked, mocked_color_changed, mocked_qt_widgets, mocked_change_color
change_color_patcher.stop()
clicked_patcher.stop()
color_changed_patcher.stop()
qt_gui_patcher.stop()
translate_patcher.stop()
@patch('openlp.core.widgets.buttons.ColorButton.setToolTip')
def test_constructor(mocked_set_tool_tip, buttons_env):
"""
Test that constructing a ColorButton object works correctly
"""
# GIVEN: The ColorButton class, a mocked change_color, setToolTip methods and clicked signal
# WHEN: The ColorButton object is instantiated
mocked_clicked = buttons_env[0]
mocked_change_color = buttons_env[3]
widget = ColorButton()
# THEN: The widget __init__ method should have the correct properties and methods called
assert widget.parent is None, 'The parent should be the same as the one that the class was instianted with'
mocked_change_color.assert_called_once_with('#ffffff')
mocked_set_tool_tip.assert_called_once_with('Tool Tip Text')
mocked_clicked.connect.assert_called_once_with(widget.on_clicked)
@patch('openlp.core.widgets.buttons.ColorButton.setStyleSheet')
def test_change_color(mocked_set_style_sheet):
"""
Test that change_color sets the new color and the stylesheet
"""
# GIVEN: An instance of the ColorButton object, and a mocked out setStyleSheet
widget = ColorButton()
# WHEN: Changing the color
widget.change_color('#000000')
# THEN: The _color attribute should be set to #000000 and setStyleSheet should have been called twice
assert widget._color == '#000000', '_color should have been set to #000000'
mocked_set_style_sheet.assert_has_calls(
[call('background-color: #ffffff'), call('background-color: #000000')])
def test_color():
"""
Test that the color property method returns the set color
"""
# GIVEN: An instance of ColorButton, with a set _color attribute
widget = ColorButton()
widget._color = '#000000'
# WHEN: Accesing the color property
value = widget.color
# THEN: The value set in _color should be returned
assert value == '#000000', 'The value returned should be equal to the one we set'
def test_color_setter(buttons_env):
"""
Test that the color property setter method sets the color
"""
# GIVEN: An instance of ColorButton, with a mocked __init__
mocked_change_color = buttons_env[3]
widget = ColorButton()
# WHEN: Setting the color property
widget.color = '#000000'
# THEN: Then change_color should have been called with the value we set
mocked_change_color.assert_called_with('#000000')
def test_on_clicked_invalid_color(buttons_env):
"""
Test the on_click method when an invalid color has been supplied
"""
# GIVEN: An instance of ColorButton, and a set _color attribute
mocked_color_changed = buttons_env[1]
mocked_qt_widgets = buttons_env[2]
mocked_change_color = buttons_env[3]
widget = ColorButton()
mocked_change_color.reset_mock()
mocked_color_changed.reset_mock()
widget._color = '#000000'
# WHEN: The on_clicked method is called, and the color is invalid
mocked_qt_widgets.QColorDialog.getColor.return_value = MagicMock(**{'isValid.return_value': False})
widget.on_clicked()
# THEN: change_color should not have been called and the colorChanged signal should not have been emitted
assert mocked_change_color.called is False, \
'change_color should not have been called with an invalid color'
assert mocked_color_changed.emit.called is False, \
'colorChange signal should not have been emitted with an invalid color'
def test_on_clicked_same_color(buttons_env):
"""
Test the on_click method when a new color has not been chosen
"""
# GIVEN: An instance of ColorButton, and a set _color attribute
mocked_color_changed = buttons_env[1]
mocked_qt_widgets = buttons_env[2]
mocked_change_color = buttons_env[3]
widget = ColorButton()
mocked_change_color.reset_mock()
mocked_color_changed.reset_mock()
widget._color = '#000000'
# WHEN: The on_clicked method is called, and the color is valid, but the same as the existing color
mocked_qt_widgets.QColorDialog.getColor.return_value = MagicMock(
**{'isValid.return_value': True, 'name.return_value': '#000000'})
widget.on_clicked()
# THEN: change_color should not have been called and the colorChanged signal should not have been emitted
assert mocked_change_color.called is False, \
'change_color should not have been called when the color has not changed'
assert mocked_color_changed.emit.called is False, \
'colorChange signal should not have been emitted when the color has not changed'
def test_on_clicked_new_color(buttons_env):
"""
Test the on_click method when a new color has been chosen and is valid
"""
# GIVEN: An instance of ColorButton, and a set _color attribute
mocked_color_changed = buttons_env[1]
mocked_qt_widgets = buttons_env[2]
mocked_change_color = buttons_env[3]
widget = ColorButton()
mocked_change_color.reset_mock()
mocked_color_changed.reset_mock()
widget._color = '#000000'
# WHEN: The on_clicked method is called, and the color is valid, and different to the existing color
mocked_qt_widgets.QColorDialog.getColor.return_value = MagicMock(
**{'isValid.return_value': True, 'name.return_value': '#ffffff'})
widget.on_clicked()
# THEN: change_color should have been called and the colorChanged signal should have been emitted
mocked_change_color.assert_called_once_with('#ffffff')
mocked_color_changed.emit.assert_called_once_with('#ffffff')