435 lines
13 KiB
Python
435 lines
13 KiB
Python
# -*- encoding: utf-8 -*-
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from argparse import ArgumentError
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try:
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from StringIO import StringIO
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except ImportError:
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# Probably python 3, that test won't be run so ignore the error
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pass
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import sys
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import nose
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import mock
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from cliff.app import App
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from cliff.command import Command
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from cliff.commandmanager import CommandManager
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def make_app(**kwargs):
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cmd_mgr = CommandManager('cliff.tests')
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# Register a command that succeeds
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command = mock.MagicMock(spec=Command)
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command_inst = mock.MagicMock(spec=Command)
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command_inst.run.return_value = 0
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command.return_value = command_inst
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cmd_mgr.add_command('mock', command)
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# Register a command that fails
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err_command = mock.Mock(name='err_command', spec=Command)
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err_command_inst = mock.Mock(spec=Command)
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err_command_inst.run = mock.Mock(
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side_effect=RuntimeError('test exception')
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)
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err_command.return_value = err_command_inst
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cmd_mgr.add_command('error', err_command)
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app = App('testing interactive mode',
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'1',
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cmd_mgr,
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stderr=mock.Mock(), # suppress warning messages
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**kwargs
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)
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return app, command
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def test_no_args_triggers_interactive_mode():
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app, command = make_app()
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app.interact = mock.MagicMock(name='inspect')
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app.run([])
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app.interact.assert_called_once_with()
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def test_interactive_mode_cmdloop():
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app, command = make_app()
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app.interactive_app_factory = mock.MagicMock(
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name='interactive_app_factory'
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)
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assert app.interpreter is None
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app.run([])
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assert app.interpreter is not None
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app.interactive_app_factory.return_value.cmdloop.assert_called_once_with()
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def test_initialize_app():
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app, command = make_app()
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app.initialize_app = mock.MagicMock(name='initialize_app')
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app.run(['mock'])
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app.initialize_app.assert_called_once_with(['mock'])
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def test_prepare_to_run_command():
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app, command = make_app()
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app.prepare_to_run_command = mock.MagicMock(name='prepare_to_run_command')
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app.run(['mock'])
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app.prepare_to_run_command.assert_called_once_with(command())
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def test_clean_up_success():
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app, command = make_app()
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app.clean_up = mock.MagicMock(name='clean_up')
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app.run(['mock'])
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app.clean_up.assert_called_once_with(command.return_value, 0, None)
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def test_clean_up_error():
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app, command = make_app()
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app.clean_up = mock.MagicMock(name='clean_up')
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app.run(['error'])
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app.clean_up.assert_called_once_with(mock.ANY, mock.ANY, mock.ANY)
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call_args = app.clean_up.call_args_list[0]
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assert call_args == mock.call(mock.ANY, 1, mock.ANY)
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args, kwargs = call_args
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assert isinstance(args[2], RuntimeError)
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assert args[2].args == ('test exception',)
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def test_clean_up_error_debug():
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app, command = make_app()
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app.clean_up = mock.MagicMock(name='clean_up')
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try:
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app.run(['--debug', 'error'])
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except RuntimeError as err:
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assert app.clean_up.call_args_list[0][0][2] is err
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else:
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assert False, 'Should have had an exception'
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assert app.clean_up.called
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call_args = app.clean_up.call_args_list[0]
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assert call_args == mock.call(mock.ANY, 1, mock.ANY)
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args, kwargs = call_args
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assert isinstance(args[2], RuntimeError)
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assert args[2].args == ('test exception',)
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def test_error_handling_clean_up_raises_exception():
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app, command = make_app()
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app.clean_up = mock.MagicMock(
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name='clean_up',
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side_effect=RuntimeError('within clean_up'),
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)
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app.run(['error'])
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assert app.clean_up.called
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call_args = app.clean_up.call_args_list[0]
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assert call_args == mock.call(mock.ANY, 1, mock.ANY)
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args, kwargs = call_args
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assert isinstance(args[2], RuntimeError)
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assert args[2].args == ('test exception',)
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def test_error_handling_clean_up_raises_exception_debug():
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app, command = make_app()
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app.clean_up = mock.MagicMock(
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name='clean_up',
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side_effect=RuntimeError('within clean_up'),
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)
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try:
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app.run(['--debug', 'error'])
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except RuntimeError as err:
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if not hasattr(err, '__context__'):
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# The exception passed to clean_up is not the exception
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# caused *by* clean_up. This test is only valid in python
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# 2 because under v3 the original exception is re-raised
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# with the new one as a __context__ attribute.
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assert app.clean_up.call_args_list[0][0][2] is not err
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else:
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assert False, 'Should have had an exception'
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assert app.clean_up.called
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call_args = app.clean_up.call_args_list[0]
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assert call_args == mock.call(mock.ANY, 1, mock.ANY)
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args, kwargs = call_args
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assert isinstance(args[2], RuntimeError)
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assert args[2].args == ('test exception',)
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def test_normal_clean_up_raises_exception():
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app, command = make_app()
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app.clean_up = mock.MagicMock(
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name='clean_up',
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side_effect=RuntimeError('within clean_up'),
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)
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app.run(['mock'])
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assert app.clean_up.called
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call_args = app.clean_up.call_args_list[0]
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assert call_args == mock.call(mock.ANY, 0, None)
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def test_normal_clean_up_raises_exception_debug():
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app, command = make_app()
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app.clean_up = mock.MagicMock(
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name='clean_up',
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side_effect=RuntimeError('within clean_up'),
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)
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app.run(['--debug', 'mock'])
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assert app.clean_up.called
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call_args = app.clean_up.call_args_list[0]
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assert call_args == mock.call(mock.ANY, 0, None)
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def test_build_option_parser_conflicting_option_should_throw():
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class MyApp(App):
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def __init__(self):
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super(MyApp, self).__init__(
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description='testing',
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version='0.1',
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command_manager=CommandManager('tests'),
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)
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def build_option_parser(self, description, version):
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parser = super(MyApp, self).build_option_parser(description,
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version)
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parser.add_argument(
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'-h', '--help',
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default=self, # tricky
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help="show this help message and exit",
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)
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# TODO: tests should really use unittest2.
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try:
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MyApp()
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except ArgumentError:
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pass
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else:
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raise Exception('Exception was not thrown')
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def test_option_parser_conflicting_option_custom_arguments_should_not_throw():
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class MyApp(App):
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def __init__(self):
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super(MyApp, self).__init__(
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description='testing',
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version='0.1',
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command_manager=CommandManager('tests'),
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)
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def build_option_parser(self, description, version):
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argparse_kwargs = {'conflict_handler': 'resolve'}
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parser = super(MyApp, self).build_option_parser(
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description,
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version,
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argparse_kwargs=argparse_kwargs)
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parser.add_argument(
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'-h', '--help',
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default=self, # tricky
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help="show this help message and exit",
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)
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MyApp()
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def test_output_encoding_default():
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# The encoding should come from getdefaultlocale() because
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# stdout has no encoding set.
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if sys.version_info[:2] != (2, 6):
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raise nose.SkipTest('only needed for python 2.6')
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data = '\xc3\xa9'
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u_data = data.decode('utf-8')
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class MyApp(App):
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def __init__(self):
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super(MyApp, self).__init__(
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description='testing',
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version='0.1',
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command_manager=CommandManager('tests'),
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)
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stdout = StringIO()
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getdefaultlocale = mock.Mock(return_value=('ignored', 'utf-8'))
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with mock.patch('sys.stdout', stdout):
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with mock.patch('locale.getdefaultlocale', getdefaultlocale):
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app = MyApp()
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app.stdout.write(u_data)
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actual = stdout.getvalue()
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assert data == actual
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def test_output_encoding_cliff_default():
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# The encoding should come from cliff.App.DEFAULT_OUTPUT_ENCODING
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# because the other values are missing or None
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if sys.version_info[:2] != (2, 6):
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raise nose.SkipTest('only needed for python 2.6')
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data = '\xc3\xa9'
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u_data = data.decode('utf-8')
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class MyApp(App):
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def __init__(self):
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super(MyApp, self).__init__(
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description='testing',
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version='0.1',
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command_manager=CommandManager('tests'),
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)
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stdout = StringIO()
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getdefaultlocale = mock.Mock(return_value=('ignored', None))
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with mock.patch('sys.stdout', stdout):
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with mock.patch('locale.getdefaultlocale', getdefaultlocale):
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app = MyApp()
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app.stdout.write(u_data)
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actual = stdout.getvalue()
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assert data == actual
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def test_output_encoding_sys():
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# The encoding should come from sys.stdout because it is set
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# there.
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if sys.version_info[:2] != (2, 6):
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raise nose.SkipTest('only needed for python 2.6')
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data = '\xc3\xa9'
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u_data = data.decode('utf-8')
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class MyApp(App):
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def __init__(self):
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super(MyApp, self).__init__(
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description='testing',
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version='0.1',
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command_manager=CommandManager('tests'),
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)
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stdout = StringIO()
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stdout.encoding = 'utf-8'
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getdefaultlocale = mock.Mock(return_value=('ignored', 'utf-16'))
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with mock.patch('sys.stdout', stdout):
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with mock.patch('locale.getdefaultlocale', getdefaultlocale):
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app = MyApp()
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app.stdout.write(u_data)
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actual = stdout.getvalue()
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assert data == actual
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def test_error_encoding_default():
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# The encoding should come from getdefaultlocale() because
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# stdout has no encoding set.
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if sys.version_info[:2] != (2, 6):
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raise nose.SkipTest('only needed for python 2.6')
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data = '\xc3\xa9'
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u_data = data.decode('utf-8')
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class MyApp(App):
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def __init__(self):
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super(MyApp, self).__init__(
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description='testing',
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version='0.1',
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command_manager=CommandManager('tests'),
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)
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stderr = StringIO()
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getdefaultlocale = mock.Mock(return_value=('ignored', 'utf-8'))
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with mock.patch('sys.stderr', stderr):
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with mock.patch('locale.getdefaultlocale', getdefaultlocale):
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app = MyApp()
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app.stderr.write(u_data)
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actual = stderr.getvalue()
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assert data == actual
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def test_error_encoding_sys():
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# The encoding should come from sys.stdout (not sys.stderr)
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# because it is set there.
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if sys.version_info[:2] != (2, 6):
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raise nose.SkipTest('only needed for python 2.6')
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data = '\xc3\xa9'
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u_data = data.decode('utf-8')
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class MyApp(App):
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def __init__(self):
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super(MyApp, self).__init__(
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description='testing',
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version='0.1',
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command_manager=CommandManager('tests'),
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)
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stdout = StringIO()
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stdout.encoding = 'utf-8'
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stderr = StringIO()
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getdefaultlocale = mock.Mock(return_value=('ignored', 'utf-16'))
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with mock.patch('sys.stdout', stdout):
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with mock.patch('sys.stderr', stderr):
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with mock.patch('locale.getdefaultlocale', getdefaultlocale):
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app = MyApp()
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app.stderr.write(u_data)
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actual = stderr.getvalue()
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assert data == actual
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def _test_help(deferred_help):
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app, _ = make_app(deferred_help=deferred_help)
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with mock.patch.object(app, 'initialize_app') as init:
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with mock.patch('cliff.help.HelpAction.__call__',
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side_effect=SystemExit(0)) as helper:
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try:
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app.run(['--help'])
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except SystemExit:
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pass
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else:
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raise Exception('Exception was not thrown')
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assert helper.called
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assert init.called == deferred_help
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def test_help():
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_test_help(False)
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def test_deferred_help():
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_test_help(True)
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def test_subcommand_help():
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app, _ = make_app(deferred_help=False)
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# Help is called immediately
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with mock.patch('cliff.help.HelpAction.__call__') as helper:
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app.run(['show', 'files', '--help'])
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assert helper.called
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def test_subcommand_deferred_help():
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app, _ = make_app(deferred_help=True)
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# Show that provide_help_if_requested() did not show help and exit
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with mock.patch.object(app, 'run_subcommand') as helper:
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app.run(['show', 'files', '--help'])
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helper.assert_called_once_with(['help', 'show', 'files'])
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def test_unknown_cmd():
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app, command = make_app()
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assert app.run(['hell']) == 2
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def test_unknown_cmd_debug():
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app, command = make_app()
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try:
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app.run(['--debug', 'hell']) == 2
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except ValueError as err:
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assert "['hell']" in ('%s' % err)
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