Source code for safe.impact_functions.volcanic.volcano_polygon_population.test.test_volcano_polygon_population

# coding=utf-8
InaSAFE Disaster risk assessment tool developed by AusAid and World Bank
- **Impact function Test Cases.**

.. note:: 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; either version 2 of the License, or
     (at your option) any later version.

__author__ = '[email protected]'
__date__ = '11/12/2015'
__copyright__ = ('Copyright 2012, Australia Indonesia Facility for '
                 'Disaster Reduction')

import unittest
import numpy

from safe.impact_functions.impact_function_manager import ImpactFunctionManager
from safe.impact_functions.volcanic.volcano_polygon_population\
    .impact_function import VolcanoPolygonPopulationFunction
from safe.test.utilities import test_data_path
from import read_layer
from import SafeLayer

[docs]class TestVolcanoPolygonPopulationFunction(unittest.TestCase): """Test for Volcano Polygon on Population Impact Function."""
[docs] def setUp(self): registry = ImpactFunctionManager().registry registry.clear() registry.register(VolcanoPolygonPopulationFunction)
[docs] def test_run(self): """TestVolcanoPolygonPopulationFunction: Test running the IF.""" merapi_krb_path = test_data_path('hazard', 'volcano_krb.shp') population_path = test_data_path( 'exposure', 'pop_binary_raster_20_20.asc') merapi_krb_layer = read_layer(merapi_krb_path) population_layer = read_layer(population_path) impact_function = VolcanoPolygonPopulationFunction.instance() # 2. Run merapi krb impact_function.hazard = SafeLayer(merapi_krb_layer) impact_function.exposure = SafeLayer(population_layer) impact_layer = impact_function.impact # Check the question expected_question = ('In the event of volcano krb how many population ' 'might need evacuation') message = 'The question should be %s, but it returns %s' % ( expected_question, impact_function.question) self.assertEqual(expected_question, impact_function.question, message) # Count by hand expected_affected_population = 181 result = numpy.nansum(impact_layer.get_data()) self.assertEqual(expected_affected_population, result, message)
[docs] def test_filter(self): """TestVolcanoPolygonPopulationFunction: Test filtering IF""" hazard_keywords = { 'title': 'merapi', 'layer_purpose': 'hazard', 'layer_mode': 'classified', 'layer_geometry': 'polygon', 'hazard': 'volcano', 'hazard_category': 'multiple_event', 'vector_hazard_classification': 'volcano_vector_hazard_classes' } exposure_keywords = { 'layer_purpose': 'exposure', 'layer_mode': 'continuous', 'layer_geometry': 'raster', 'exposure': 'population', 'exposure_unit': 'count' } impact_functions = ImpactFunctionManager().filter_by_keywords( hazard_keywords, exposure_keywords) message = 'There should be 1 impact function, but there are: %s' % \ len(impact_functions) self.assertEqual(1, len(impact_functions), message) retrieved_if = impact_functions[0].metadata().as_dict()['id'] expected = ImpactFunctionManager().get_function_id( VolcanoPolygonPopulationFunction) message = 'Expecting %s, but getting %s instead' % ( expected, retrieved_if) self.assertEqual(expected, retrieved_if, message)