testunusual_trip_filter.py

#!/usr/bin/python2.4
#
# Copyright (C) 2009 Google Inc.
#
# 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.

"""Tests for unusual_trip_filter.py"""
from __future__ import absolute_import

__author__ = 'Jiri Semecky <jiri.semecky@gmail.com>'

import unusual_trip_filter
import transitfeed
import unittest
from tests import util

class UnusualTripFilterTestCase(util.TempDirTestCaseBase):
  """Test of unusual trip filter functionality."""

  def testFilter(self):
    """Test if filtering works properly."""
    expected_values = {
        'CITY1':0, 'CITY2':0, 'CITY3':0, 'CITY4' :0, 'CITY5' :0, 'CITY6' :0,
        'CITY7':0, 'CITY8':0, 'CITY9':0, 'CITY10':0, 'CITY11':1, 'CITY12':1,
        }
    filter = unusual_trip_filter.UnusualTripFilter(0.1, quiet=True)
    input = self.GetPath('tests', 'data', 'filter_unusual_trips')
    loader = transitfeed.Loader(input, extra_validation=True)
    schedule = loader.Load()
    filter.filter(schedule)
    for trip_id, expected_trip_type in expected_values.items():
      actual_trip_type = schedule.trips[trip_id]['trip_type']
      try:
        self.assertEquals(int(actual_trip_type), expected_trip_type)
      except ValueError:
        self.assertEquals(actual_trip_type, '')

  def testFilterNoForceFilter(self):
    """Test that force==False doesn't set default values"""
    filter = unusual_trip_filter.UnusualTripFilter(0.1, force=False, quiet=True)
    input = self.GetPath('tests', 'data', 'filter_unusual_trips')
    loader = transitfeed.Loader(input, extra_validation=True)
    schedule = loader.Load()
    schedule.trips['CITY2'].trip_type = 'odd-trip'
    filter.filter(schedule)
    trip1 = schedule.trips['CITY1']
    self.assertEquals(trip1['trip_type'], '')
    trip2 = schedule.trips['CITY2']
    self.assertEquals(trip2['trip_type'], 'odd-trip')

  def testFilterForceFilter(self):
    """Test that force==True does set default values"""
    filter = unusual_trip_filter.UnusualTripFilter(0.1, force=True, quiet=False)
    input = self.GetPath('tests', 'data', 'filter_unusual_trips')
    loader = transitfeed.Loader(input, extra_validation=True)
    schedule = loader.Load()
    schedule.trips['CITY2'].trip_type = 'odd-trip'
    filter.filter(schedule)
    trip1 = schedule.trips['CITY1']
    self.assertEquals(trip1['trip_type'], '0')
    trip2 = schedule.trips['CITY2']
    self.assertEquals(trip2['trip_type'], '0')

  def testFilterAppliedForSpecifiedRouteType(self):
    """Setting integer route_type filters trips of this route type."""
    filter = unusual_trip_filter.UnusualTripFilter(0.1, quiet=True,
                                                   route_type=3)
    input = self.GetPath('tests', 'data', 'filter_unusual_trips')
    loader = transitfeed.Loader(input, extra_validation=True)
    schedule = loader.Load()
    filter.filter(schedule)
    actual_trip_type = schedule.trips['CITY11']['trip_type']
    self.assertEquals(actual_trip_type, '1')

  def testFilterNotAppliedForUnspecifiedRouteType(self):
    """Setting integer route_type filters trips of this route type."""
    filter = unusual_trip_filter.UnusualTripFilter(0.1, quiet=True,
                                                   route_type=2)
    input = self.GetPath('tests', 'data', 'filter_unusual_trips')
    loader = transitfeed.Loader(input, extra_validation=True)
    schedule = loader.Load()
    filter.filter(schedule)
    actual_trip_type = schedule.trips['CITY11']['trip_type']
    self.assertEquals(actual_trip_type, '')

  def testFilterAppliedForRouteTypeSpecifiedByName(self):
    """Setting integer route_type filters trips of this route type."""
    filter = unusual_trip_filter.UnusualTripFilter(0.1, quiet=True,
                                                   route_type='Bus')
    input = self.GetPath('tests', 'data', 'filter_unusual_trips')
    loader = transitfeed.Loader(input, extra_validation=True)
    schedule = loader.Load()
    filter.filter(schedule)
    actual_trip_type = schedule.trips['CITY11']['trip_type']
    self.assertEquals(actual_trip_type, '1')

  def testFilterNotAppliedForDifferentRouteTypeSpecifiedByName(self):
    """Setting integer route_type filters trips of this route type."""
    filter = unusual_trip_filter.UnusualTripFilter(0.1, quiet=True,
                                                   route_type='Ferry')
    input = self.GetPath('tests', 'data', 'filter_unusual_trips')
    loader = transitfeed.Loader(input, extra_validation=True)
    schedule = loader.Load()
    filter.filter(schedule)
    actual_trip_type = schedule.trips['CITY11']['trip_type']
    self.assertEquals(actual_trip_type, '')

if __name__ == '__main__':
  unittest.main()