openlp/tests/openlp_core/widgets/test_dialogs.py

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# -*- coding: utf-8 -*-
##########################################################################
# OpenLP - Open Source Lyrics Projection #
# ---------------------------------------------------------------------- #
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# 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/>. #
##########################################################################
import os
from pathlib import Path
from unittest.mock import patch
from PyQt5 import QtWidgets
from openlp.core.widgets.dialogs import FileDialog
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def test_file_dialog():
"""
Test that the :class:`FileDialog` instantiates correctly
"""
# GIVEN: The FileDialog class
# WHEN: Creating an instance
instance = FileDialog()
# THEN: The instance should be an instance of QFileDialog
assert isinstance(instance, QtWidgets.QFileDialog)
def test_get_existing_directory_user_abort():
"""
Test that `getExistingDirectory` handles the case when the user cancels the dialog
"""
# GIVEN: FileDialog with a mocked QDialog.getExistingDirectory method
# WHEN: Calling FileDialog.getExistingDirectory and the user cancels the dialog returns a empty string
with patch('PyQt5.QtWidgets.QFileDialog.getExistingDirectory', return_value=''):
result = FileDialog.getExistingDirectory()
# THEN: The result should be None
assert result is None
def test_get_existing_directory_user_accepts():
"""
Test that `getExistingDirectory` handles the case when the user accepts the dialog
"""
# GIVEN: FileDialog with a mocked QDialog.getExistingDirectory method
# WHEN: Calling FileDialog.getExistingDirectory, the user chooses a file and accepts the dialog (it returns a
# string pointing to the directory)
with patch('PyQt5.QtWidgets.QFileDialog.getExistingDirectory', return_value=os.path.join('test', 'dir')):
result = FileDialog.getExistingDirectory()
# THEN: getExistingDirectory() should return a Path object pointing to the chosen file
assert result == Path('test', 'dir')
def test_get_existing_directory_param_order():
"""
Test that `getExistingDirectory` passes the parameters to `QFileDialog.getExistingDirectory` in the correct
order
"""
# GIVEN: FileDialog
with patch('openlp.core.widgets.dialogs.QtWidgets.QFileDialog.getExistingDirectory', return_value='') \
as mocked_get_existing_directory:
# WHEN: Calling the getExistingDirectory method with all parameters set
FileDialog.getExistingDirectory('Parent', 'Caption', Path('test', 'dir'), 'Options')
# THEN: The `QFileDialog.getExistingDirectory` should have been called with the parameters in the correct
# order
mocked_get_existing_directory.assert_called_once_with('Parent', 'Caption', os.path.join('test', 'dir'),
'Options')
def test_get_open_file_name_user_abort():
"""
Test that `getOpenFileName` handles the case when the user cancels the dialog
"""
# GIVEN: FileDialog with a mocked QDialog.getOpenFileName method
# WHEN: Calling FileDialog.getOpenFileName and the user cancels the dialog (it returns a tuple with the first
# value set as an empty string)
with patch('PyQt5.QtWidgets.QFileDialog.getOpenFileName', return_value=('', '')):
result = FileDialog.getOpenFileName()
# THEN: First value should be None
assert result[0] is None
def test_get_open_file_name_user_accepts():
"""
Test that `getOpenFileName` handles the case when the user accepts the dialog
"""
# GIVEN: FileDialog with a mocked QDialog.getOpenFileName method
# WHEN: Calling FileDialog.getOpenFileName, the user chooses a file and accepts the dialog (it returns a
# tuple with the first value set as an string pointing to the file)
with patch('PyQt5.QtWidgets.QFileDialog.getOpenFileName',
return_value=(os.path.join('test', 'chosen.file'), '')):
result = FileDialog.getOpenFileName()
# THEN: getOpenFileName() should return a tuple with the first value set to a Path object pointing to the
# chosen file
assert result[0] == Path('test', 'chosen.file')
def test_get_open_file_name_selected_filter():
"""
Test that `getOpenFileName` does not modify the selectedFilter as returned by `QFileDialog.getOpenFileName`
"""
# GIVEN: FileDialog with a mocked QDialog.get_save_file_name method
# WHEN: Calling FileDialog.getOpenFileName, and `QFileDialog.getOpenFileName` returns a known `selectedFilter`
with patch('PyQt5.QtWidgets.QFileDialog.getOpenFileName', return_value=('', 'selected filter')):
result = FileDialog.getOpenFileName()
# THEN: getOpenFileName() should return a tuple with the second value set to a the selected filter
assert result[1] == 'selected filter'
def test_get_open_file_names_user_abort():
"""
Test that `getOpenFileNames` handles the case when the user cancels the dialog
"""
# GIVEN: FileDialog with a mocked QDialog.getOpenFileNames method
# WHEN: Calling FileDialog.getOpenFileNames and the user cancels the dialog (it returns a tuple with the first
# value set as an empty list)
with patch('PyQt5.QtWidgets.QFileDialog.getOpenFileNames', return_value=([], '')):
result = FileDialog.getOpenFileNames()
# THEN: First value should be an empty list
assert result[0] == []
def test_get_open_file_names_user_accepts():
"""
Test that `getOpenFileNames` handles the case when the user accepts the dialog
"""
# GIVEN: FileDialog with a mocked QDialog.getOpenFileNames method
# WHEN: Calling FileDialog.getOpenFileNames, the user chooses some files and accepts the dialog (it returns a
# tuple with the first value set as a list of strings pointing to the file)
with patch('PyQt5.QtWidgets.QFileDialog.getOpenFileNames',
return_value=([os.path.join('test', 'chosen.file1'), os.path.join('test', 'chosen.file2')], '')):
result = FileDialog.getOpenFileNames()
# THEN: getOpenFileNames() should return a tuple with the first value set to a list of Path objects pointing
# to the chosen file
assert result[0] == [Path('test', 'chosen.file1'), Path('test', 'chosen.file2')]
def test_get_open_file_names_selected_filter():
"""
Test that `getOpenFileNames` does not modify the selectedFilter as returned by `QFileDialog.getOpenFileNames`
"""
# GIVEN: FileDialog with a mocked QDialog.getOpenFileNames method
# WHEN: Calling FileDialog.getOpenFileNames, and `QFileDialog.getOpenFileNames` returns a known
# `selectedFilter`
with patch('PyQt5.QtWidgets.QFileDialog.getOpenFileNames', return_value=([], 'selected filter')):
result = FileDialog.getOpenFileNames()
# THEN: getOpenFileNames() should return a tuple with the second value set to a the selected filter
assert result[1] == 'selected filter'
def test_get_save_file_name_user_abort():
"""
Test that `getSaveFileName` handles the case when the user cancels the dialog
"""
# GIVEN: FileDialog with a mocked QDialog.get_save_file_name method
# WHEN: Calling FileDialog.getSaveFileName and the user cancels the dialog (it returns a tuple with the first
# value set as an empty string)
with patch('PyQt5.QtWidgets.QFileDialog.getSaveFileName', return_value=('', '')):
result = FileDialog.getSaveFileName()
# THEN: First value should be None
assert result[0] is None
def test_get_save_file_name_user_accepts():
"""
Test that `getSaveFileName` handles the case when the user accepts the dialog
"""
# GIVEN: FileDialog with a mocked QDialog.getSaveFileName method
# WHEN: Calling FileDialog.getSaveFileName, the user chooses a file and accepts the dialog (it returns a
# tuple with the first value set as an string pointing to the file)
with patch('PyQt5.QtWidgets.QFileDialog.getSaveFileName',
return_value=(os.path.join('test', 'chosen.file'), '')):
result = FileDialog.getSaveFileName()
# THEN: getSaveFileName() should return a tuple with the first value set to a Path object pointing to the
# chosen file
assert result[0] == Path('test', 'chosen.file')
def test_get_save_file_name_selected_filter():
"""
Test that `getSaveFileName` does not modify the selectedFilter as returned by `QFileDialog.getSaveFileName`
"""
# GIVEN: FileDialog with a mocked QDialog.get_save_file_name method
# WHEN: Calling FileDialog.getSaveFileName, and `QFileDialog.getSaveFileName` returns a known `selectedFilter`
with patch('PyQt5.QtWidgets.QFileDialog.getSaveFileName', return_value=('', 'selected filter')):
result = FileDialog.getSaveFileName()
# THEN: getSaveFileName() should return a tuple with the second value set to a the selected filter
assert result[1] == 'selected filter'