2012-12-06 22:19:17 +00:00
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"""
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Package to test the openlp.core.lib package.
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"""
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from unittest import TestCase
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2013-01-21 13:17:27 +00:00
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from datetime import datetime, timedelta
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2012-12-06 22:19:17 +00:00
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2013-01-08 06:20:49 +00:00
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from mock import MagicMock, patch
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2012-12-07 17:47:33 +00:00
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2013-01-20 20:53:58 +00:00
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from openlp.core.lib import str_to_bool, translate, check_directory_exists, get_text_file_string, build_icon, \
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2013-01-21 13:57:09 +00:00
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image_to_byte, check_item_selected, validate_thumb
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2012-12-06 22:19:17 +00:00
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2012-12-07 21:15:10 +00:00
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class TestLib(TestCase):
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2012-12-06 22:19:17 +00:00
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def str_to_bool_with_bool_test(self):
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"""
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Test the str_to_bool function with boolean input
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"""
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#GIVEN: A boolean value set to true
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true_boolean = True
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# WHEN: We "convert" it to a bool
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true_result = str_to_bool(true_boolean)
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# THEN: We should get back a True bool
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assert isinstance(true_result, bool), u'The result should be a boolean'
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assert true_result is True, u'The result should be True'
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#GIVEN: A boolean value set to false
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false_boolean = False
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# WHEN: We "convert" it to a bool
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false_result = str_to_bool(false_boolean)
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# THEN: We should get back a True bool
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assert isinstance(false_result, bool), u'The result should be a boolean'
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assert false_result is False, u'The result should be True'
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def str_to_bool_with_invalid_test(self):
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"""
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Test the str_to_bool function with a set of invalid inputs
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"""
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# GIVEN: An integer value
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int_string = 1
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# WHEN: we convert it to a bool
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int_result = str_to_bool(int_string)
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# THEN: we should get back a false
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assert int_result is False, u'The result should be False'
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# GIVEN: An string value with completely invalid input
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invalid_string = u'my feet are wet'
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# WHEN: we convert it to a bool
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str_result = str_to_bool(invalid_string)
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# THEN: we should get back a false
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assert str_result is False, u'The result should be False'
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def str_to_bool_with_false_values_test(self):
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"""
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2012-12-06 22:21:19 +00:00
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Test the str_to_bool function with a set of false inputs
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2012-12-06 22:19:17 +00:00
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"""
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# GIVEN: A string set to "false"
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false_string = u'false'
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# WHEN: we convert it to a bool
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false_result = str_to_bool(false_string)
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# THEN: we should get back a false
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assert false_result is False, u'The result should be False'
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# GIVEN: An string set to "NO"
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no_string = u'NO'
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# WHEN: we convert it to a bool
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str_result = str_to_bool(no_string)
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# THEN: we should get back a false
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assert str_result is False, u'The result should be False'
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def str_to_bool_with_true_values_test(self):
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"""
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2012-12-06 22:21:19 +00:00
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Test the str_to_bool function with a set of true inputs
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2012-12-06 22:19:17 +00:00
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"""
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# GIVEN: A string set to "True"
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true_string = u'True'
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# WHEN: we convert it to a bool
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true_result = str_to_bool(true_string)
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# THEN: we should get back a true
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assert true_result is True, u'The result should be True'
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# GIVEN: An string set to "yes"
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yes_string = u'yes'
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# WHEN: we convert it to a bool
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str_result = str_to_bool(yes_string)
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# THEN: we should get back a true
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assert str_result is True, u'The result should be True'
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2012-12-07 17:47:33 +00:00
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def translate_test(self):
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"""
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Test the translate() function
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"""
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# GIVEN: A string to translate and a mocked Qt translate function
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context = u'OpenLP.Tests'
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text = u'Untranslated string'
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comment = u'A comment'
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encoding = 1
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n = 1
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mocked_translate = MagicMock(return_value=u'Translated string')
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# WHEN: we call the translate function
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result = translate(context, text, comment, encoding, n, mocked_translate)
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# THEN: the translated string should be returned, and the mocked function should have been called
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mocked_translate.assert_called_with(context, text, comment, encoding, n)
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assert result == u'Translated string', u'The translated string should have been returned'
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2012-12-07 18:10:24 +00:00
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def check_directory_exists_test(self):
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"""
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Test the check_directory_exists() function
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"""
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with patch(u'openlp.core.lib.os.path.exists') as mocked_exists, \
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patch(u'openlp.core.lib.os.makedirs') as mocked_makedirs:
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# GIVEN: A directory to check and a mocked out os.makedirs and os.path.exists
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directory_to_check = u'existing/directory'
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2012-12-07 20:50:38 +00:00
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# WHEN: os.path.exists returns True and we check to see if the directory exists
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2012-12-07 18:10:24 +00:00
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mocked_exists.return_value = True
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check_directory_exists(directory_to_check)
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# THEN: Only os.path.exists should have been called
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mocked_exists.assert_called_with(directory_to_check)
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assert not mocked_makedirs.called, u'os.makedirs should not have been called'
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# WHEN: os.path.exists returns False and we check the directory exists
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mocked_exists.return_value = False
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check_directory_exists(directory_to_check)
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# THEN: Both the mocked functions should have been called
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mocked_exists.assert_called_with(directory_to_check)
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mocked_makedirs.assert_called_with(directory_to_check)
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2012-12-07 19:08:28 +00:00
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# WHEN: os.path.exists raises an IOError
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mocked_exists.side_effect = IOError()
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check_directory_exists(directory_to_check)
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# THEN: We shouldn't get an exception though the mocked exists has been called
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mocked_exists.assert_called_with(directory_to_check)
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# WHEN: Some other exception is raised
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mocked_exists.side_effect = ValueError()
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# THEN: check_directory_exists raises an exception
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2012-12-07 20:50:38 +00:00
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mocked_exists.assert_called_with(directory_to_check)
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2012-12-07 19:08:28 +00:00
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self.assertRaises(ValueError, check_directory_exists, directory_to_check)
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2012-12-10 20:48:37 +00:00
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def get_text_file_string_no_file_test(self):
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"""
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Test the get_text_file_string() function when a file does not exist
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"""
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with patch(u'openlp.core.lib.os.path.isfile') as mocked_isfile:
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# GIVEN: A mocked out isfile which returns true, and a text file name
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filename = u'testfile.txt'
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mocked_isfile.return_value = False
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# WHEN: get_text_file_string is called
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result = get_text_file_string(filename)
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# THEN: The result should be False
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mocked_isfile.assert_called_with(filename)
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assert result is False, u'False should be returned if no file exists'
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def get_text_file_string_read_error_test(self):
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2013-01-07 12:05:19 +00:00
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"""
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Test the get_text_file_string() method when a read error happens
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"""
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2012-12-10 20:48:37 +00:00
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with patch(u'openlp.core.lib.os.path.isfile') as mocked_isfile, patch(u'__builtin__.open') as mocked_open:
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# GIVEN: A mocked-out open() which raises an exception and isfile returns True
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filename = u'testfile.txt'
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mocked_isfile.return_value = True
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mocked_open.side_effect = IOError()
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# WHEN: get_text_file_string is called
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result = get_text_file_string(filename)
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# THEN: None should be returned
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mocked_isfile.assert_called_with(filename)
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mocked_open.assert_called_with(filename, u'r')
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assert result is None, u'None should be returned if the file cannot be opened'
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def get_text_file_string_decode_error_test(self):
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2013-01-07 12:05:19 +00:00
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"""
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Test the get_text_file_string() method when the contents cannot be decoded
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"""
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assert True, u'Impossible to test due to conflicts when mocking out the "open" function'
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2012-12-10 20:48:37 +00:00
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2013-01-07 20:21:14 +00:00
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def build_icon_with_qicon_test(self):
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"""
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Test the build_icon() function with a QIcon instance
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"""
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with patch(u'openlp.core.lib.QtGui') as MockedQtGui:
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# GIVEN: A mocked QIcon
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MockedQtGui.QIcon = MagicMock
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mocked_icon = MockedQtGui.QIcon()
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# WHEN: We pass a QIcon instance in
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result = build_icon(mocked_icon)
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# THEN: The result should be our mocked QIcon
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assert result is mocked_icon, u'The result should be the mocked QIcon'
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def build_icon_with_resource_test(self):
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"""
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Test the build_icon() function with a resource URI
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"""
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with patch(u'openlp.core.lib.QtGui') as MockedQtGui, \
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patch(u'openlp.core.lib.QtGui.QPixmap') as MockedQPixmap:
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# GIVEN: A mocked QIcon and a mocked QPixmap
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MockedQtGui.QIcon = MagicMock
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MockedQtGui.QIcon.Normal = 1
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MockedQtGui.QIcon.Off = 2
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MockedQPixmap.return_value = u'mocked_pixmap'
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resource_uri = u':/resource/uri'
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# WHEN: We pass a QIcon instance in
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result = build_icon(resource_uri)
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# THEN: The result should be our mocked QIcon
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MockedQPixmap.assert_called_with(resource_uri)
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2013-01-20 20:53:58 +00:00
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# There really should be more assert statements here but due to type checking and things they all break. The
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# best we can do is to assert that we get back a MagicMock object.
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assert isinstance(result, MagicMock), u'The result should be a MagicMock, because we mocked it out'
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2013-01-07 20:21:14 +00:00
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2013-01-20 20:53:58 +00:00
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def image_to_byte_test(self):
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"""
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Test the image_to_byte() function
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"""
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with patch(u'openlp.core.lib.QtCore') as MockedQtCore:
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# GIVEN: A set of mocked-out Qt classes
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mocked_byte_array = MagicMock()
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MockedQtCore.QByteArray.return_value = mocked_byte_array
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mocked_byte_array.toBase64.return_value = u'base64mock'
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mocked_buffer = MagicMock()
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MockedQtCore.QBuffer.return_value = mocked_buffer
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MockedQtCore.QIODevice.WriteOnly = u'writeonly'
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mocked_image = MagicMock()
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# WHEN: We convert an image to a byte array
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result = image_to_byte(mocked_image)
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# THEN: We should receive a value of u'base64mock'
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MockedQtCore.QByteArray.assert_called_with()
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MockedQtCore.QBuffer.assert_called_with(mocked_byte_array)
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mocked_buffer.open.assert_called_with(u'writeonly')
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mocked_image.save.assert_called_with(mocked_buffer, "PNG")
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mocked_byte_array.toBase64.assert_called_with()
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assert result == u'base64mock', u'The result should be the return value of the mocked out base64 method'
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2013-01-20 21:09:52 +00:00
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def check_item_selected_true_test(self):
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"""
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Test that the check_item_selected() function returns True when there are selected indexes.
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"""
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# GIVEN: A mocked out QtGui module and a list widget with selected indexes
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MockedQtGui = patch(u'openlp.core.lib.QtGui')
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mocked_list_widget = MagicMock()
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mocked_list_widget.selectedIndexes.return_value = True
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message = u'message'
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# WHEN: We check if there are selected items
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result = check_item_selected(mocked_list_widget, message)
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# THEN: The selectedIndexes function should have been called and the result should be true
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mocked_list_widget.selectedIndexes.assert_called_with()
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assert result, u'The result should be True'
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def check_item_selected_false_test(self):
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"""
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Test that the check_item_selected() function returns False when there are no selected indexes.
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"""
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# GIVEN: A mocked out QtGui module and a list widget with selected indexes
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with patch(u'openlp.core.lib.QtGui') as MockedQtGui, \
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patch(u'openlp.core.lib.translate') as mocked_translate:
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mocked_translate.return_value = u'mocked translate'
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mocked_list_widget = MagicMock()
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mocked_list_widget.selectedIndexes.return_value = False
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mocked_list_widget.parent.return_value = u'parent'
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message = u'message'
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# WHEN: We check if there are selected items
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result = check_item_selected(mocked_list_widget, message)
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# THEN: The selectedIndexes function should have been called and the result should be true
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mocked_list_widget.selectedIndexes.assert_called_with()
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MockedQtGui.QMessageBox.information.assert_called_with(u'parent', u'mocked translate', 'message')
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assert not result, u'The result should be False'
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2013-01-21 13:57:09 +00:00
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def validate_thumb_file_does_not_exist_test(self):
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2013-01-21 13:04:18 +00:00
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"""
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2013-01-21 13:57:09 +00:00
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Test the validate_thumb() function when the thumbnail does not exist
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"""
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# GIVEN: A mocked out os module, with path.exists returning False, and fake paths to a file and a thumb
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with patch(u'openlp.core.lib.os') as mocked_os:
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file_path = u'path/to/file'
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thumb_path = u'path/to/thumb'
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mocked_os.path.exists.return_value = False
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# WHEN: we run the validate_thumb() function
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result = validate_thumb(file_path, thumb_path)
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# THEN: we should have called a few functions, and the result should be False
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mocked_os.path.exists.assert_called_with(thumb_path)
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assert result is False, u'The result should be False'
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def validate_thumb_file_exists_and_newer_test(self):
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"""
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Test the validate_thumb() function when the thumbnail exists and has a newer timestamp than the file
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2013-01-21 13:04:18 +00:00
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"""
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# GIVEN: A mocked out os module, functions rigged to work for us, and fake paths to a file and a thumb
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with patch(u'openlp.core.lib.os') as mocked_os:
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file_path = u'path/to/file'
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thumb_path = u'path/to/thumb'
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file_mocked_stat = MagicMock()
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file_mocked_stat.st_mtime = datetime.now()
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thumb_mocked_stat = MagicMock()
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thumb_mocked_stat.st_mtime = datetime.now() + timedelta(seconds=10)
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mocked_os.path.exists.return_value = True
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2013-01-21 13:57:09 +00:00
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mocked_os.stat.side_effect = [file_mocked_stat, thumb_mocked_stat]
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2013-01-21 13:04:18 +00:00
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# WHEN: we run the validate_thumb() function
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# THEN: we should have called a few functions, and the result should be True
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2013-01-21 13:57:09 +00:00
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#mocked_os.path.exists.assert_called_with(thumb_path)
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def validate_thumb_file_exists_and_older_test(self):
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"""
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Test the validate_thumb() function when the thumbnail exists but is older than the file
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"""
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# GIVEN: A mocked out os module, functions rigged to work for us, and fake paths to a file and a thumb
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with patch(u'openlp.core.lib.os') as mocked_os:
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file_path = u'path/to/file'
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thumb_path = u'path/to/thumb'
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file_mocked_stat = MagicMock()
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file_mocked_stat.st_mtime = datetime.now()
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thumb_mocked_stat = MagicMock()
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thumb_mocked_stat.st_mtime = datetime.now() - timedelta(seconds=10)
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mocked_os.path.exists.return_value = True
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2013-01-21 20:15:10 +00:00
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mocked_os.stat.side_effect = lambda fname: file_mocked_stat if fname == file_path else thumb_mocked_stat
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2013-01-21 13:57:09 +00:00
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# WHEN: we run the validate_thumb() function
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result = validate_thumb(file_path, thumb_path)
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# THEN: we should have called a few functions, and the result should be False
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mocked_os.path.exists.assert_called_with(thumb_path)
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mocked_os.stat.assert_any_call(file_path)
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mocked_os.stat.assert_any_call(thumb_path)
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assert result is False, u'The result should be False'
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