def test_mb_classes_ln(self):
"""
Test the Maximum Breaks classifier for a line-based geographic model.
"""
sld = generator.as_maximum_breaks(Pipeline.objects.filter(material='ceramic'), 'diameter', 5, geofield='path')
# request 5, get 2 back.
self.assertEqual(len(sld.NamedLayer.UserStyle.FeatureTypeStyle.Rules), 2)
sld = generator.as_maximum_breaks(Pipeline.objects.filter(material='concrete'), 'diameter', 5, geofield='path')
literals = sld._node.xpath('//ogc:PropertyIsLessThanOrEqualTo/ogc:Literal',namespaces=sld._nsmap)
expected = ['0.5', '49.0']
for i,n in enumerate(literals):
self.assertEqual(n.text, expected[i], 'Class %d is not correct.' % i)
def test_mb_classes_poly(self):
"""
Test the Maximum Breaks classifier for a polygon-based geographic model.
"""
sld = generator.as_maximum_breaks(Reservoir.objects.filter(name__startswith='City'), 'volume', 5, geofield='coastline')
# request 5, get 2 back.
self.assertEqual(len(sld.NamedLayer.UserStyle.FeatureTypeStyle.Rules), 2)
sld = generator.as_maximum_breaks(Reservoir.objects.filter(name__startswith='County'), 'volume', 5, geofield='coastline')
literals = sld._node.xpath('//ogc:PropertyIsLessThanOrEqualTo/ogc:Literal',namespaces=sld._nsmap)
expected = ['21625000.0', '22565000.0', '23525000.0', '24505000.0', '25000000.0']
for i,n in enumerate(literals):
self.assertEqual(n.text, expected[i], 'Class %d is not correct.' % i)
def test_mb_classes_pt(self):
"""
Test the Maximum Breaks classifier for a point-based geographic model.
"""
sld = generator.as_maximum_breaks(Hydrant.objects.filter(pressure=1), 'number', 5, geofield='location')
# request 5, get 2 back.
self.assertEqual(len(sld.NamedLayer.UserStyle.FeatureTypeStyle.Rules), 2)
sld = generator.as_maximum_breaks(Hydrant.objects.filter(pressure=2), 'number', 5, geofield='location')
literals = sld._node.xpath('//ogc:PropertyIsLessThanOrEqualTo/ogc:Literal',namespaces=sld._nsmap)
expected = ['2070.5', '2162.5', '2256.5', '2352.5', '2401.0']
for i,n in enumerate(literals):
self.assertEqual(n.text, expected[i], 'Class %d is not correct.' % i)
