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#encoding: utf8
import itertools
import unittest
from utilities import Todo
class FeatureTest(unittest.TestCase):
def makeOne(self, *args, **kw):
from mapnik2 import Feature
return Feature(*args, **kw)
def test_default_constructor(self):
f = self.makeOne(1)
self.failUnless(f is not None)
def test_python_extended_constructor(self):
from mapnik2 import Box2d
f = self.makeOne(1, 'POLYGON ((35 10, 10 20, 15 40, 45 45, 35 10),(20 30, 35 35, 30 20, 20 30))', foo="bar")
self.failUnlessEqual(f['foo'], 'bar')
self.failUnlessEqual(f.envelope(),Box2d(10.0,10.0,45.0,45.0))
area = 0.0
for g in f.geometries():
area += g.area()
self.failUnlessEqual(area,-450.0)
def test_set_get_properties(self):
f = self.makeOne(1)
counter = itertools.count(0)
def test_val(expected):
key = 'prop%d'%counter.next()
try:
f[key] = expected
except TypeError:
self.fail("%r (%s)"%(expected, type(expected)))
self.failUnlessEqual(f[key], expected)
for v in (1, True, 1.4, "foo", u"avión"):
test_val(v)
def test_add_wkt_geometry(self):
from mapnik2 import Box2d
def add_geom_wkt(wkt):
f = self.makeOne(1)
self.failUnlessEqual(len(f.geometries()), 0)
f.add_geometries_from_wkt(wkt)
self.failUnlessEqual(len(f.geometries()), 3)
e = Box2d()
self.failUnlessEqual(e.valid(), False)
for g in f.geometries():
if not e.valid():
e = g.envelope()
else:
e +=g.envelope()
self.failUnlessEqual(e, f.envelope())
from binascii import unhexlify
def add_geom_wkb(wkb):
f = self.makeOne(1)
self.failUnlessEqual(len(f.geometries()), 0)
f.add_geometries_from_wkb(unhexlify(wkb))
self.failUnlessEqual(len(f.geometries()), 1)
e = Box2d()
self.failUnlessEqual(e.valid(), False)
for g in f.geometries():
if not e.valid():
e = g.envelope()
else:
e +=g.envelope()
self.failUnlessEqual(e, f.envelope())
def run() :
add_geom_wkt('GEOMETRYCOLLECTION(POINT(4 6),LINESTRING(4 6,7 10),POLYGON ((30 10, 10 20, 20 40, 40 40, 30 10)))')
add_geom_wkb('010300000001000000050000000000000000003e4000000000000024400000000000002440000000000000344000000000000034400000000000004440000000000000444000000000000044400000000000003e400000000000002440') # POLYGON ((30 10, 10 20, 20 40, 40 40, 30 10))
run()
if __name__ == "__main__":
[eval(run)() for run in dir() if 'test_' in run]
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