def test_change_setting_by_name(self):
"""
To test the method AppSettings.change_setting_by_name, we have to assert the following:
1.Trying to change a setting, which does not exist should throw a SettingUnknownException.
2.Trying to change a setting, which does exist, should result in the setting having the changed value.
"""
# make sure we have a string, which is not a key in the dictionary
random_word_length = 10
random_word = RandomStringCreator.randomword(random_word_length)
while random_word in AppSettings.settings:
random_word_length += 1
random_word = RandomStringCreator.randomword(random_word_length)
# check for 1. (Does the method throw the correct exception?)
try:
AppSettings.change_setting_by_name(random_word, 'abc')
assert False, 'Could change a not existing setting.'
except SettingUnknownException:
assert random_word not in AppSettings.settings, \
'The method AppSettings.change_setting_by_name falsely throws exception SettingUnknownException.'
# check for 2. (Does the method set the correct value for the setting?)
if len(AppSettings.settings.keys()) == 0:
test_setting_name = 'test_setting_name'
test_setting_value = 'test_setting_value'
new_value = test_setting_value + '_1'
AppSettings.add_setting_by_name(test_setting_name,
test_setting_value)
AppSettings.change_setting_by_name(test_setting_name, new_value)
assert AppSettings.get_setting_by_name(test_setting_name) == new_value, \
'The method AppSettings.change_setting_by_name not set the correct value.'
else:
existing_dictionary_key = list(AppSettings.settings.keys())[0]
try:
old_value = AppSettings.get_setting_by_name(
existing_dictionary_key)
new_value = old_value + '_1'
AppSettings.change_setting_by_name(existing_dictionary_key,
new_value)
assert AppSettings.get_setting_by_name(existing_dictionary_key) == new_value, \
'The method AppSettings.change_setting_by_name does change to the correct value.'
except SettingUnknownException:
assert False, 'AppSettings.change_setting_by_name a SettingUnknownException, ' \
'although the accessed key existed in the settings dictionary.'
def test_change_setting_by_name(self):
"""
To test the method AppSettings.change_setting_by_name, we have to assert the following:
1.Trying to change a setting, which does not exist should throw a SettingUnknownException.
2.Trying to change a setting, which does exist, should result in the setting having the changed value.
"""
# make sure we have a string, which is not a key in the dictionary
random_word_length = 10
random_word = RandomStringCreator.randomword(random_word_length)
while random_word in AppSettings.settings:
random_word_length += 1
random_word = RandomStringCreator.randomword(random_word_length)
# check for 1. (Does the method throw the correct exception?)
try:
AppSettings.change_setting_by_name(random_word, 'abc')
assert False, 'Could change a not existing setting.'
except SettingUnknownException:
assert random_word not in AppSettings.settings, \
'The method AppSettings.change_setting_by_name falsely throws exception SettingUnknownException.'
# check for 2. (Does the method set the correct value for the setting?)
if len(AppSettings.settings.keys()) == 0:
test_setting_name = 'test_setting_name'
test_setting_value = 'test_setting_value'
new_value = test_setting_value + '_1'
AppSettings.add_setting_by_name(test_setting_name, test_setting_value)
AppSettings.change_setting_by_name(test_setting_name, new_value)
assert AppSettings.get_setting_by_name(test_setting_name) == new_value, \
'The method AppSettings.change_setting_by_name not set the correct value.'
else:
existing_dictionary_key = list(AppSettings.settings.keys())[0]
try:
old_value = AppSettings.get_setting_by_name(existing_dictionary_key)
new_value = old_value + '_1'
AppSettings.change_setting_by_name(existing_dictionary_key, new_value)
assert AppSettings.get_setting_by_name(existing_dictionary_key) == new_value, \
'The method AppSettings.change_setting_by_name does change to the correct value.'
except SettingUnknownException:
assert False, 'AppSettings.change_setting_by_name a SettingUnknownException, ' \
'although the accessed key existed in the settings dictionary.'
def test_get_setting_by_name(self):
"""
To test the get_setting_by_name method, we have to assert the following:
1. trying to access a setting, which does not exist raises the appropriate exception
2. trying to access a setting, which does exist, will return the correct settings value
To assert 2., we can set a settings value using the change_setting_by_name or add_setting_by_name.
"""
# make sure we have a string, which is not a key in the dictionary
random_word_length = 10
random_word = RandomStringCreator.randomword(random_word_length)
while random_word in AppSettings.settings:
random_word_length += 1
random_word = RandomStringCreator.randomword(random_word_length)
# check for 1. (does it throw the correct exception?)
try:
AppSettings.get_setting_by_name(random_word)
assert False, 'Could get a value for a not existing setting.'
except SettingUnknownException:
assert random_word not in AppSettings.settings, \
'The method AppSettings.get_setting_by_name falsely throws exception SettingUnknownException.'
# check for 2.
if len(AppSettings.settings.keys()) == 0:
test_setting_name = 'test_setting_name'
test_setting_value = 'test_setting_value'
AppSettings.add_setting_by_name(test_setting_name,
test_setting_value)
assert AppSettings.get_setting_by_name(test_setting_name) == test_setting_value, \
'The method AppSettings.get_setting_by_name does not return the correct value.'
else:
existing_dictionary_key = list(AppSettings.settings.keys())[0]
try:
returned_value = AppSettings.get_setting_by_name(
existing_dictionary_key)
expected_value = AppSettings.settings[existing_dictionary_key]
assert returned_value == expected_value, \
'The method AppSettings.get_setting_by_name does not return the correct value.'
except SettingUnknownException:
assert False, 'Exception raised although the accessed key existed in the settings dictionary.'
def test_get_setting_by_name(self):
"""
To test the get_setting_by_name method, we have to assert the following:
1. trying to access a setting, which does not exist raises the appropriate exception
2. trying to access a setting, which does exist, will return the correct settings value
To assert 2., we can set a settings value using the change_setting_by_name or add_setting_by_name.
"""
# make sure we have a string, which is not a key in the dictionary
random_word_length = 10
random_word = RandomStringCreator.randomword(random_word_length)
while random_word in AppSettings.settings:
random_word_length += 1
random_word = RandomStringCreator.randomword(random_word_length)
# check for 1. (does it throw the correct exception?)
try:
AppSettings.get_setting_by_name(random_word)
assert False, 'Could get a value for a not existing setting.'
except SettingUnknownException:
assert random_word not in AppSettings.settings, \
'The method AppSettings.get_setting_by_name falsely throws exception SettingUnknownException.'
# check for 2.
if len(AppSettings.settings.keys()) == 0:
test_setting_name = 'test_setting_name'
test_setting_value = 'test_setting_value'
AppSettings.add_setting_by_name(test_setting_name, test_setting_value)
assert AppSettings.get_setting_by_name(test_setting_name) == test_setting_value, \
'The method AppSettings.get_setting_by_name does not return the correct value.'
else:
existing_dictionary_key = list(AppSettings.settings.keys())[0]
try:
returned_value = AppSettings.get_setting_by_name(existing_dictionary_key)
expected_value = AppSettings.settings[existing_dictionary_key]
assert returned_value == expected_value, \
'The method AppSettings.get_setting_by_name does not return the correct value.'
except SettingUnknownException:
assert False, 'Exception raised although the accessed key existed in the settings dictionary.'