from mock import patch, Mock

from twisted.trial import unittest

import signal

import io

import ConfigParser

from functools import partial

from iro import config, error, validate 

from iro.offer.provider import Provider, providers

class TestModuleConfig(unittest.TestCase):

    '''test config class'''

    def setUp(self):

        self._reloadList=config.configParser.reloadList

        config.configParser.reloadList=[]

    def tearDown(self):

        config.configParser.reloadList = self._reloadList

    @patch('iro.config.main')

    @patch('iro.config.configParser')

    def testReadConfig(self,pConfig,pMain):

        pMain._init = True

        config.readConfig()

        self.assertEqual([i[0] for i in pConfig.method_calls],["read","reload_","items"])

        pConfig.read.assert_called_once_with(config.confFiles)

        pConfig.items.assert_called_once_with("main")

        pConfig.reload_.assert_called_once_with()

        self.assertEqual(pMain.load.called,1)

    @patch('iro.config.main')

    @patch('iro.config.configParser')

    def testReadConfigInit(self,pConfig,pMain):

        pConfig.items.return_value = [('dburl',''),("port",1000)]

        pMain._init = False

        config.readConfig()

        self.assertEqual([i[0] for i in pConfig.method_calls],["read","reload_","items"])

        self.assertEqual([i[0] for i in pMain.method_calls],["same"])

        sa = pMain.same.call_args_list[0][0][0]

        self.assertEqual(sa.port,1000)

        self.assertEqual(sa.dburl,'')

        pMain.same.return_value = False

        self.assertRaises(Exception,config.readConfig,)

    @patch('iro.config.main')

    @patch('iro.config.configParser')

    def testInit(self,pConfig,pMain):

        pMain._init = False

        config.init()

        self.assertEqual([i[0] for i in pConfig.method_calls],["read", "items"])

        pConfig.read.assert_called_once_with(config.confFiles)

        pConfig.items.assert_called_once_with("main")

        self.assertEqual(pMain.load.called,1)

    @patch('signal.signal')

    @patch('iro.config.readConfig')

    def testRegisterSignal(self, pReadConfig, pSignal):

        config.registerSignal()

        self.assertEqual(pSignal.call_args[0][0],signal.SIGUSR2)

        self.assertEqual(pReadConfig.called,0)

        pSignal.call_args[0][1](None, None)

        pReadConfig.assert_called_once_with()

    def testRegisterReload(self):

        def x():

            pass

        config.configParser.registerReload(x)

        self.assertEqual(config.configParser.reloadList,[x])

    def testReload(self):

        x = Mock()

        config.configParser.reloadList = [x] 

        config.configParser.reload_()

        x.assert_called_once_with()

class TestRead(unittest.TestCase):

    def tearDown(self):

        for s in config.configParser.sections():

            config.configParser.remove_section(s)

    @patch('iro.config.ConfigParser.read')

    def testMain(self,pRead):

        sample_config = """[main]

port = 8000

dburl = sdfdsafgsfdg

"""

        config.configParser.readfp(io.BytesIO(sample_config))

        config.configParser.read([])

        pRead.assert_called_once_with(config.configParser,[])

    @patch('iro.config.ConfigParser.read')

    def testMainBadPort(self,pRead):

        sample_config = """[main]

port = -8000

dburl = sadfaserasg

"""

        config.configParser.readfp(io.BytesIO(sample_config))

        self.assertRaises(error.ValidateException, config.configParser.read, [])

    @patch('iro.config.ConfigParser.read')

    def testMainNoMust(self,pRead):

        sample_config = """[main]

port = 8000

"""

        config.configParser.readfp(io.BytesIO(sample_config))

        self.assertRaises(config.NeededOption, config.configParser.read, [])

    @patch('iro.config.ConfigParser.read')

    def testMust(self,pRead):

        v=Mock()

        config.main.options["test"] = config.Option(v,default="jehei")

        try:

            sample_config = """[main]

dburl = sdfawersdf

port = 8000

"""

            config.configParser.readfp(io.BytesIO(sample_config))

            config.configParser.read([])

            self.assertEqual(v.called,0)

            config.main.load(config.configParser.items("main"))

            self.assertEqual(config.main.test,'jehei')

            sample_config = """[main]

dburl = adfgsdftsfg

port = 8000

test = foohu

    """

            config.configParser.readfp(io.BytesIO(sample_config))

            config.configParser.read([])

            v.assert_called_once_with("foohu","test")

        finally:

            del(config.main.options["test"])

    @patch('iro.config.ConfigParser.read')

    def testProviders(self, pRead):

        v=Mock()

        class TestProvider(Provider):

            def __init__(self,name):

                o = [("test",config.Option(v))]

                Provider.__init__(self, name, options=o)

        providers["test"]=TestProvider

        try:

            sample_config = """[p]

"""

            config.configParser.readfp(io.BytesIO(sample_config))

            self.assertRaises(ConfigParser.NoOptionError, config.configParser.read, [])  

            self.assertEqual(v.called,0)

            sample_config = """[p]

typ= test

test= foo

"""

            config.configParser.readfp(io.BytesIO(sample_config))

            config.configParser.read([])

            v.assert_called_once_with("foo","test")

        finally:

            del(providers["test"])

class TestConfig(unittest.TestCase):

    def config(self,name):

        return config.Config(name, OrderedDict([

                ("dburl",config.Option(lambda x,y:x,long="Connection URL to database",must=True)),

                ("port",config.Option(partial(validate.vInteger,minv=0),long="Port under that twisted is running",must=True)),

                ])

            )

    def testSame(self):

        c1 = self.config("1")

        c1.port = 1

        c1.dburl = "dburl1"

        c2 = self.config("2")

        c2.port = 1

        c2.dburl = "dburl1"

        self.assertTrue(c1.same(c2))

        self.assertTrue(c1.same(c1))

        self.assertTrue(c2.same(c1))

        c2.port = 2

        self.assertFalse(c2.same(c1))

        self.assertFalse(c1.same(c2))

        c2.port = 1

        c2.dburl = "dburl2"

        self.assertFalse(c2.same(c1))

        self.assertFalse(c1.same(c2))

    def testSampleConf(self):

        c1 = self.config("1")

        self.assertEqual(c1.sampleConf(),["[1]",

            "# Connection URL to database",

            "dburl = ","",

            "# Port under that twisted is running",

            "port = ",""])

    def testSampleConfDefault(self):

        c1 = self.config("1")

        c1.options["port"].default = 12345

        c1.options["port"].must = False

        c1.options["dburl"].default = True

        self.assertEqual(c1.sampleConf(),["[1]",

            "# Connection URL to database",

            "dburl = True","",

            "# Port under that twisted is running",

            "# port = 12345",""])