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  # contributor license agreements.  See the NOTICE file distributed with
  # this work for additional information regarding copyright ownership.
  # The ASF licenses this file to You 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 time
  import datetime
  
  import unittest2
  
  from st2common.fields import ComplexDateTimeField
  
  
  class ComplexDateTimeFieldTestCase(unittest2.TestCase):
      def test_round_trip_conversion(self):
          datetime_values = [
              datetime.datetime(2015, 1, 1, 15, 0, 0).replace(microsecond=500),
              datetime.datetime(2015, 1, 1, 15, 0, 0).replace(microsecond=0),
              datetime.datetime(2015, 1, 1, 15, 0, 0).replace(microsecond=999999)
          ]
          microsecond_values = []
  
          # Calculate microsecond values
          for value in datetime_values:
              seconds = time.mktime(value.timetuple())
              microseconds_reminder = value.time().microsecond
              result = int(seconds * 1000000) + microseconds_reminder
              microsecond_values.append(result)
  
          field = ComplexDateTimeField()
          # datetime to us
          for index, value in enumerate(datetime_values):
              actual_value = field._datetime_to_microseconds_since_epoch(value=value)
              expected_value = microsecond_values[index]
              expected_microseconds = value.time().microsecond
  
              self.assertEqual(actual_value, expected_value)
              self.assertTrue(str(actual_value).endswith(str(expected_microseconds)))
  
          # us to datetime
          for index, value in enumerate(microsecond_values):
              actual_value = field._microseconds_since_epoch_to_datetime(data=value)
              expected_value = datetime_values[index]
              self.assertEqual(actual_value, expected_value)
  
subject: Add tests for new complext date time field.