openlp/tests/functional/openlp_plugins/presentations/test_pdfcontroller.py

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# -*- 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) 2008-2015 OpenLP Developers #
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# --------------------------------------------------------------------------- #
# 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; version 2 of the License. #
# #
# 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, write to the Free Software Foundation, Inc., 59 #
# Temple Place, Suite 330, Boston, MA 02111-1307 USA #
###############################################################################
"""
This module contains tests for the PdfController
"""
import os
import shutil
from unittest import TestCase, SkipTest
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from tempfile import mkdtemp
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from PyQt4 import QtCore, QtGui
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from openlp.plugins.presentations.lib.pdfcontroller import PdfController, PdfDocument
from tests.functional import MagicMock
from openlp.core.common import Settings
from openlp.core.lib import ScreenList
from tests.utils.constants import TEST_RESOURCES_PATH
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from tests.helpers.testmixin import TestMixin
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__default_settings__ = {
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'presentations/enable_pdf_program': False,
'presentations/thumbnail_scheme': ''
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}
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SCREEN = {
'primary': False,
'number': 1,
'size': QtCore.QRect(0, 0, 1024, 768)
}
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class TestPdfController(TestCase, TestMixin):
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"""
Test the PdfController.
"""
def setUp(self):
"""
Set up the components need for all tests.
"""
self.setup_application()
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self.build_settings()
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# Mocked out desktop object
self.desktop = MagicMock()
self.desktop.primaryScreen.return_value = SCREEN['primary']
self.desktop.screenCount.return_value = SCREEN['number']
self.desktop.screenGeometry.return_value = SCREEN['size']
self.screens = ScreenList.create(self.desktop)
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Settings().extend_default_settings(__default_settings__)
self.temp_folder = mkdtemp()
self.thumbnail_folder = mkdtemp()
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self.mock_plugin = MagicMock()
self.mock_plugin.settings_section = self.temp_folder
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def tearDown(self):
"""
Delete all the C++ objects at the end so that we don't have a segfault
"""
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del self.screens
self.destroy_settings()
shutil.rmtree(self.thumbnail_folder)
shutil.rmtree(self.temp_folder)
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def constructor_test(self):
"""
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Test the Constructor from the PdfController
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"""
# GIVEN: No presentation controller
controller = None
# WHEN: The presentation controller object is created
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controller = PdfController(plugin=self.mock_plugin)
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# THEN: The name of the presentation controller should be correct
self.assertEqual('Pdf', controller.name, 'The name of the presentation controller should be correct')
def load_pdf_test(self):
"""
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Test loading of a Pdf using the PdfController
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"""
# GIVEN: A Pdf-file
test_file = os.path.join(TEST_RESOURCES_PATH, 'presentations', 'pdf_test1.pdf')
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# WHEN: The Pdf is loaded
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controller = PdfController(plugin=self.mock_plugin)
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if not controller.check_available():
raise SkipTest('Could not detect mudraw or ghostscript, so skipping PDF test')
controller.temp_folder = self.temp_folder
controller.thumbnail_folder = self.thumbnail_folder
document = PdfDocument(controller, test_file)
loaded = document.load_presentation()
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# THEN: The load should succeed and we should be able to get a pagecount
self.assertTrue(loaded, 'The loading of the PDF should succeed.')
self.assertEqual(3, document.get_slide_count(), 'The pagecount of the PDF should be 3.')
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def load_pdf_pictures_test(self):
"""
Test loading of a Pdf and check size of generate pictures
"""
# GIVEN: A Pdf-file
test_file = os.path.join(TEST_RESOURCES_PATH, 'presentations', 'pdf_test1.pdf')
# WHEN: The Pdf is loaded
controller = PdfController(plugin=self.mock_plugin)
if not controller.check_available():
raise SkipTest('Could not detect mudraw or ghostscript, so skipping PDF test')
controller.temp_folder = self.temp_folder
controller.thumbnail_folder = self.thumbnail_folder
document = PdfDocument(controller, test_file)
loaded = document.load_presentation()
# THEN: The load should succeed and pictures should be created and have been scales to fit the screen
self.assertTrue(loaded, 'The loading of the PDF should succeed.')
image = QtGui.QImage(os.path.join(self.temp_folder, 'pdf_test1.pdf', 'mainslide001.png'))
# Based on the converter used the resolution will differ a bit
if controller.gsbin:
self.assertEqual(760, image.height(), 'The height should be 760')
self.assertEqual(537, image.width(), 'The width should be 537')
else:
self.assertEqual(768, image.height(), 'The height should be 768')
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self.assertEqual(543, image.width(), 'The width should be 543')