# This file is part of Buildbot.  Buildbot is free software: you can
# redistribute it and/or modify it under the terms of the GNU General Public
# License as published by the Free Software Foundation, version 2.
#
# This program is distributed in the hope that it will be useful, but WITHOUT
# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program; if not, write to the Free Software Foundation, Inc., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright Buildbot Team Members


import mock

from twisted.internet import defer
from twisted.trial import unittest

from buildbot.changes import base
from buildbot.changes import manager
from buildbot.test.fake import fakemaster


class TestChangeManager(unittest.TestCase):

    def setUp(self):
        self.master = fakemaster.make_master(testcase=self, wantData=True)
        self.cm = manager.ChangeManager()
        self.master.startService()
        self.cm.setServiceParent(self.master)
        self.new_config = mock.Mock()

    def tearDown(self):
        return self.master.stopService()

    def make_sources(self, n, klass=base.ChangeSource, **kwargs):
        for i in range(n):
            src = klass(name='ChangeSource %d' % i, **kwargs)
            yield src

    @defer.inlineCallbacks
    def test_reconfigService_add(self):
        src1, src2 = self.make_sources(2)
        src1.setServiceParent(self.cm)
        self.new_config.change_sources = [src1, src2]

        yield self.cm.reconfigServiceWithBuildbotConfig(self.new_config)

        self.assertIdentical(src2.parent, self.cm)
        self.assertIdentical(src2.master, self.master)

    @defer.inlineCallbacks
    def test_reconfigService_remove(self):
        src1, = self.make_sources(1)
        src1.setServiceParent(self.cm)
        self.new_config.change_sources = []

        self.assertTrue(src1.running)
        yield self.cm.reconfigServiceWithBuildbotConfig(self.new_config)

        self.assertFalse(src1.running)

    @defer.inlineCallbacks
    def test_reconfigService_change_reconfigurable(self):
        src1, = self.make_sources(1, base.ReconfigurablePollingChangeSource, pollInterval=1)
        src1.setServiceParent(self.cm)

        src2, = self.make_sources(1, base.ReconfigurablePollingChangeSource, pollInterval=2)

        self.new_config.change_sources = [src2]

        self.assertTrue(src1.running)
        self.assertEqual(src1.pollInterval, 1)
        yield self.cm.reconfigServiceWithBuildbotConfig(self.new_config)

        self.assertTrue(src1.running)
        self.assertFalse(src2.running)
        self.assertEqual(src1.pollInterval, 2)

    @defer.inlineCallbacks
    def test_reconfigService_change_legacy(self):
        src1, = self.make_sources(1, base.PollingChangeSource, pollInterval=1)
        src1.setServiceParent(self.cm)

        src2, = self.make_sources(1, base.PollingChangeSource, pollInterval=2)

        self.new_config.change_sources = [src2]

        self.assertTrue(src1.running)
        self.assertEqual(src1.pollInterval, 1)
        yield self.cm.reconfigServiceWithBuildbotConfig(self.new_config)

        self.assertFalse(src1.running)
        self.assertTrue(src2.running)
        self.assertEqual(src2.pollInterval, 2)
