Synnefo » ./kamaki

# Copyright 2013 GRNET S.A. All rights reserved.

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from unittest import makeSuite, TestSuite, TextTestRunner, TestCase

from inspect import getmembers, isclass

from tempfile import NamedTemporaryFile

from mock import patch, call

from itertools import product

from kamaki.cli.command_tree.test import Command, CommandTree

from kamaki.cli.argument.test import (

    Argument, ConfigArgument, RuntimeConfigArgument, FlagArgument,

    ValueArgument, IntArgument, DateArgument, VersionArgument,

    KeyValueArgument, ProgressBarArgument, ArgumentParseManager)

from kamaki.cli.utils.test import UtilsMethods

class History(TestCase):

    def setUp(self):

        from kamaki.cli.history import History as HClass

        self.HCLASS = HClass

        self.file = NamedTemporaryFile()

    def tearDown(self):

        self.file.close()

    def test__match(self):

        self.assertRaises(AttributeError, self.HCLASS._match, 'ok', 42)

        self.assertRaises(TypeError, self.HCLASS._match, 2.71, 'ok')

        for args, expected in (

                (('XXX', None), True),

                ((None, None), True),

                (('this line has some terms', 'some terms'), True),

                (('this line has some terms', 'some bad terms'), False),

                (('small line', 'not so small line terms'), False),

                ((['line', 'with', 'some', 'terms'], 'some terms'), True),

                ((['line', 'with', 'some terms'], 'some terms'), False)):

            self.assertEqual(self.HCLASS._match(*args), expected)

    def test_get(self):

        history = self.HCLASS(self.file.name)

        self.assertEqual(history.get(), [])

        sample_history = (

            'kamaki history show\n',

            'kamaki file list\n',

            'kamaki touch pithos:f1\n',

            'kamaki file info pithos:f1\n')

        self.file.write(''.join(sample_history))

        self.file.flush()

        expected = ['%s.  \t%s' % (

            i + 1, event) for i, event in enumerate(sample_history)]

        self.assertEqual(history.get(), expected)

        self.assertEqual(history.get('kamaki'), expected)

        self.assertEqual(history.get('file kamaki'), expected[1::2])

        self.assertEqual(history.get('pithos:f1'), expected[2:])

        self.assertEqual(history.get('touch pithos:f1'), expected[2:3])

        for limit in range(len(sample_history)):

            self.assertEqual(history.get(limit=limit), expected[-limit:])

            self.assertEqual(

                history.get('kamaki', limit=limit), expected[-limit:])

    def test_add(self):

        history = self.HCLASS(self.file.name)

        some_strings = ('a brick', 'two bricks', 'another brick', 'A wall!')

        for i, line in enumerate(some_strings):

            history.add(line)

            self.file.seek(0)

            self.assertEqual(

                self.file.read(), '\n'.join(some_strings[:(i + 1)]) + '\n')

    def test_clean(self):

        content = 'a brick\ntwo bricks\nanother brick\nA wall!\n'

        self.file.write(content)

        self.file.flush()

        self.file.seek(0)

        self.assertEqual(self.file.read(), content)

        history = self.HCLASS(self.file.name)

        history.clean()

        self.file.seek(0)

        self.assertEqual(self.file.read(), '')

    def test_retrieve(self):

        sample_history = (

            'kamaki history show\n',

            'kamaki file list\n',

            'kamaki touch pithos:f1\n',

            'kamaki file info pithos:f1\n',

            'current / last command is always excluded')

        self.file.write(''.join(sample_history))

        self.file.flush()

        history = self.HCLASS(self.file.name)

        self.assertRaises(ValueError, history.retrieve, 'must be number')

        self.assertRaises(TypeError, history.retrieve, [1, 2, 3])

        for i in (0, len(sample_history), -len(sample_history)):

            self.assertEqual(history.retrieve(i), None)

        for i in range(1, len(sample_history)):

            self.assertEqual(history.retrieve(i), sample_history[i - 1])

            self.assertEqual(history.retrieve(- i), sample_history[- i - 1])

class LoggerMethods(TestCase):

    class PseudoLogger(object):

        level = 'some level'

        _setLevel_calls = []

        _addHandler_calls = []

        def setLevel(self, *args):

            self._setLevel_calls.append(args)

        def addHandler(self, *args):

            self._addHandler_calls.append(args)

    class PseudoHandler(object):

        _setFormatter_calls = []

        def setFormatter(self, *args):

            self._setFormatter_calls.append(args)

    def setUp(self):

        from kamaki.cli.logger import LOG_FILE, _blacklist

        self.LF, self.BL = list(LOG_FILE), dict(_blacklist)

    def tearDown(self):

        self.PseudoLogger._setLevel_calls = []

        self.PseudoLogger._addHandler_calls = []

        self.PseudoLogger._setFormatter_calls = []

        from kamaki.cli.logger import LOG_FILE, _blacklist

        for e in LOG_FILE:

            LOG_FILE.pop()

        for e in self.LF:

            LOG_FILE.append(e)

        _blacklist.clear()

        _blacklist.update(self.BL)

    @patch('kamaki.cli.logger.logging.getLogger', return_value=PseudoLogger())

    def test_deactivate(self, GL):

        from kamaki.cli.logger import deactivate, _blacklist

        self.assertEqual(_blacklist, {})

        deactivate('some logger')

        GL.assert_called_once_with('some logger')

        self.assertEqual(

            _blacklist.get('some logger', None), self.PseudoLogger.level)

        from logging import CRITICAL

        self.assertEqual(self.PseudoLogger._setLevel_calls[-1], (CRITICAL, ))

    @patch('kamaki.cli.logger.logging.getLogger', return_value=PseudoLogger())

    def test_activate(self, GL):

        from kamaki.cli.logger import activate

        activate('another logger')

        GL.assert_called_once_with('another logger')

        self.assertEqual(

            self.PseudoLogger._setLevel_calls[-1], (self.PseudoLogger.level, ))

    def test_get_log_filename(self):

        from kamaki.cli.logger import get_log_filename, LOG_FILE

        f = NamedTemporaryFile()

        for e in LOG_FILE:

            LOG_FILE.pop()

        LOG_FILE.append(f.name)

        self.assertEqual(get_log_filename(), f.name)

        LOG_FILE.pop()

        LOG_FILE.append(2 * f.name)

        print('\n  Should print error msg here: ')

        self.assertEqual(get_log_filename(), None)

    def test_set_log_filename(self):

        from kamaki.cli.logger import set_log_filename, LOG_FILE

        for n in ('some name', 'some other name'):

            set_log_filename(n)

            self.assertEqual(LOG_FILE[0], n)

    @patch('kamaki.cli.logger.get_logger', return_value=PseudoLogger())

    @patch('kamaki.cli.logger.logging.Formatter', return_value='f0rm4t')

    @patch(

        'kamaki.cli.logger.logging.StreamHandler',

        return_value=PseudoHandler())

    @patch(

        'kamaki.cli.logger.logging.FileHandler',

        return_value=PseudoHandler())

    def test__add_logger(self, FH, SH, F, GL):

        from kamaki.cli.logger import _add_logger

        from logging import DEBUG

        stdf, cnt = '%(name)s\n %(message)s', 0

        for name, level, filename, fmt in product(

                ('my logger', ),

                ('my level', None),

                ('my filename', None),

                ('my fmt', None)):

            log = _add_logger(name, level, filename, fmt)

            self.assertTrue(isinstance(log, self.PseudoLogger))

            self.assertEqual(GL.mock_calls[-1], call(name))

            if filename:

                self.assertEqual(FH.mock_calls[-1], call(filename))

            else:

                self.assertEqual(SH.mock_calls[-1], call())

            self.assertEqual(F.mock_calls[-1], call(fmt or stdf))

            self.assertEqual(

                self.PseudoHandler._setFormatter_calls[-1], ('f0rm4t', ))

            cnt += 1

            self.assertEqual(len(self.PseudoLogger._addHandler_calls), cnt)

            h = self.PseudoLogger._addHandler_calls[-1]

            self.assertTrue(isinstance(h[0], self.PseudoHandler))

            l = self.PseudoLogger._setLevel_calls[-1]

            self.assertEqual(l, (level or DEBUG, ))

    @patch('kamaki.cli.logger.get_log_filename', return_value='my log fname')

    @patch('kamaki.cli.logger.get_logger', return_value='my get logger ret')

    def test_add_file_logger(self, GL, GLF):

        from kamaki.cli.logger import add_file_logger

        with patch('kamaki.cli.logger._add_logger', return_value='AL') as AL:

            GLFcount = GLF.call_count

            for name, level, filename in product(

                    ('my name'), ('my level', None), ('my filename', None)):

                self.assertEqual(add_file_logger(name, level, filename), 'AL')

                self.assertEqual(AL.mock_calls[-1], call(

                    name, level, filename or 'my log fname',

                    fmt='%(name)s(%(levelname)s) %(asctime)s\n\t%(message)s'))

                if filename:

                    self.assertEqual(GLFcount, GLF.call_count)

                else:

                    GLFcount = GLF.call_count

                    self.assertEqual(GLF.mock_calls[-1], call())

        with patch('kamaki.cli.logger._add_logger', side_effect=Exception):

            self.assertEqual(add_file_logger('X'), 'my get logger ret')

            GL.assert_called_once_with('X')

    @patch('kamaki.cli.logger.get_logger', return_value='my get logger ret')

    def test_add_stream_logger(self, GL):

        from kamaki.cli.logger import add_stream_logger

        with patch('kamaki.cli.logger._add_logger', return_value='AL') as AL:

            for name, level, fmt in product(

                    ('my name'), ('my level', None), ('my fmt', None)):

                self.assertEqual(add_stream_logger(name, level, fmt), 'AL')

                self.assertEqual(AL.mock_calls[-1], call(name, level, fmt=fmt))

        with patch('kamaki.cli.logger._add_logger', side_effect=Exception):

            self.assertEqual(add_stream_logger('X'), 'my get logger ret')

            GL.assert_called_once_with('X')

    @patch('kamaki.cli.logger.logging.getLogger', return_value=PseudoLogger())

    def test_get_logger(self, GL):

        from kamaki.cli.logger import get_logger

        get_logger('my logger name')

        GL.assert_called_once_with('my logger name')

#  TestCase auxiliary methods

def runTestCase(cls, test_name, args=[], failure_collector=[]):

    """

    :param cls: (TestCase) a set of Tests

    :param test_name: (str)

    :param args: (list) these are prefixed with test_ and used as params when

        instantiating cls

    :param failure_collector: (list) collects info of test failures

    :returns: (int) total # of run tests

    """

    suite = TestSuite()

    if args:

        suite.addTest(cls('_'.join(['test'] + args)))

    else:

        suite.addTest(makeSuite(cls))

    print('* Test * %s *' % test_name)

    r = TextTestRunner(verbosity=2).run(suite)

    failure_collector += r.failures

    return r.testsRun

def get_test_classes(module=__import__(__name__), name=''):

    module_stack = [module]

    while module_stack:

        module = module_stack[-1]

        module_stack = module_stack[:-1]

        for objname, obj in getmembers(module):

            if (objname == name or not name):

                if isclass(obj) and objname != 'TestCase' and (

                        issubclass(obj, TestCase)):

                    yield (obj, objname)

def main(argv):

    found = False

    failure_collector = list()

    num_of_tests = 0

    for cls, name in get_test_classes(name=argv[1] if len(argv) > 1 else ''):

        found = True

        num_of_tests += runTestCase(cls, name, argv[2:], failure_collector)

    if not found:

        print('Test "%s" not found' % ' '.join(argv[1:]))

    else:

        for i, failure in enumerate(failure_collector):

            print('Failure %s: ' % (i + 1))

            for field in failure:

                print('\t%s' % field)

        print('\nTotal tests run: %s' % num_of_tests)

        print('Total failures: %s' % len(failure_collector))

if __name__ == '__main__':

    from sys import argv

    main(argv)