# Copyright (C) 2011-2012,2015  Codethink Limited
#
# This program 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 of the License.
#
# 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, see <http://www.gnu.org/licenses/>.


import datetime
import unittest

import morphlib


class StopwatchTests(unittest.TestCase):

    def setUp(self):
        self.stopwatch = morphlib.stopwatch.Stopwatch()

    def test_tick(self):
        self.stopwatch.tick('tick', 'a')
        self.assertTrue(self.stopwatch.times('tick'))
        self.assertTrue(self.stopwatch.time('tick', 'a'))
        self.assertTrue('a' in self.stopwatch.times('tick'))
        self.assertEqual(self.stopwatch.time('tick', 'a'),
                         self.stopwatch.times('tick')['a'])

        now = datetime.datetime.now()
        self.assertTrue(self.stopwatch.time('tick', 'a') < now)

    def test_start_stop(self):
        self.stopwatch.start('start-stop')
        self.assertTrue(self.stopwatch.times('start-stop'))
        self.assertTrue(self.stopwatch.start_time('start-stop'))

        self.stopwatch.stop('start-stop')
        self.assertTrue(self.stopwatch.times('start-stop'))
        self.assertTrue(self.stopwatch.stop_time('start-stop'))

        start = self.stopwatch.start_time('start-stop')
        stop = self.stopwatch.stop_time('start-stop')

        our_delta = stop - start
        watch_delta = self.stopwatch.start_stop_delta('start-stop')
        self.assertEqual(our_delta, watch_delta)

        self.assertTrue(self.stopwatch.start_stop_seconds('start-stop') > 0)

    def test_with(self):
        with self.stopwatch('foo'):
            pass
        self.assertTrue(self.stopwatch.start_stop_seconds('foo') < 1.0)

    def test_with_within_with(self):
        with self.stopwatch('foo'):
            with self.stopwatch('bar'):
                pass
        self.assertTrue(self.stopwatch.start_time('foo') is not None)
        self.assertTrue(self.stopwatch.stop_time('foo') is not None)
        self.assertTrue(self.stopwatch.start_time('bar') is not None)
        self.assertTrue(self.stopwatch.stop_time('bar') is not None)
        self.assertTrue(self.stopwatch.start_stop_seconds('foo') < 1.0)
        self.assertTrue(self.stopwatch.start_stop_seconds('bar') < 1.0)