text: # -*- coding: utf-8 -*-
  
  # Copyright 2018, OpenCensus Authors
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  import unittest
  
  from opencensus.metrics import label_value
  from opencensus.metrics.export import point, time_series, value
  
  START_TIMESTAMP = '2018-10-09T22:33:44.012345Z'
  LABEL_VALUE1 = label_value.LabelValue('value one')
  LABEL_VALUE2 = label_value.LabelValue('价值二')
  LABEL_VALUES = (LABEL_VALUE1, LABEL_VALUE2)
  POINTS = (point.Point(
      value.ValueLong(1), "2018-10-09T23:33:44.012345Z"),
            point.Point(
                value.ValueLong(2), "2018-10-10T00:33:44.012345Z"),
            point.Point(
                value.ValueLong(3), "2018-10-10T01:33:44.012345Z"),
            point.Point(
                value.ValueLong(4), "2018-10-10T02:33:44.012345Z"),
            point.Point(
                value.ValueLong(5), "2018-10-10T03:33:44.012345Z"))
  
  
  class TestTimeSeries(unittest.TestCase):
      def test_init(self):
          ts = time_series.TimeSeries(LABEL_VALUES, POINTS, START_TIMESTAMP)
  
          self.assertEqual(ts.start_timestamp, START_TIMESTAMP)
          self.assertEqual(ts.label_values, LABEL_VALUES)
          self.assertEqual(ts.points, POINTS)
  
      def test_init_invalid(self):
          time_series.TimeSeries(LABEL_VALUES, POINTS, None)
          with self.assertRaises(ValueError):
              time_series.TimeSeries(None, POINTS, START_TIMESTAMP)
          with self.assertRaises(ValueError):
              time_series.TimeSeries(LABEL_VALUES, None, START_TIMESTAMP)
          with self.assertRaises(ValueError):
              time_series.TimeSeries(LABEL_VALUES, [], START_TIMESTAMP)
  
      def test_check_points_type(self):
          ts = time_series.TimeSeries(LABEL_VALUES, POINTS, START_TIMESTAMP)
          self.assertTrue(ts.check_points_type(value.ValueLong))
  
          bad_points = POINTS + (point.Point(
              value.ValueDouble(6.0), "2018-10-10T04:33:44.012345Z"), )
          bad_time_series = time_series.TimeSeries(LABEL_VALUES, bad_points,
                                                   START_TIMESTAMP)
  
          self.assertFalse(bad_time_series.check_points_type(value.ValueLong))
          self.assertFalse(bad_time_series.check_points_type(value.ValueLong))
  