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#!/usr/bin/env python
import os
from nose.tools import *
from utilities import execution_path, run_all
import mapnik
def setup():
# All of the paths used are relative, if we run the tests
# from another directory we need to chdir()
os.chdir(execution_path('.'))
def test_introspect_symbolizers():
# create a symbolizer
p = mapnik.PointSymbolizer(mapnik.PathExpression("../data/images/dummy.png"))
p.allow_overlap = True
p.opacity = 0.5
eq_(p.allow_overlap, True)
eq_(p.opacity, 0.5)
eq_(p.filename,'../data/images/dummy.png')
# make sure the defaults
# are what we think they are
eq_(p.allow_overlap, True)
eq_(p.opacity,0.5)
eq_(p.filename,'../data/images/dummy.png')
# contruct objects to hold it
r = mapnik.Rule()
r.symbols.append(p)
s = mapnik.Style()
s.rules.append(r)
m = mapnik.Map(0,0)
m.append_style('s',s)
# try to figure out what is
# in the map and make sure
# style is there and the same
s2 = m.find_style('s')
rules = s2.rules
eq_(len(rules),1)
r2 = rules[0]
syms = r2.symbols
eq_(len(syms),1)
## TODO here, we can do...
sym = syms[0]
# this is hackish at best
p2 = sym.symbol()
assert isinstance(p2,mapnik.PointSymbolizer)
eq_(p2.allow_overlap, True)
eq_(p2.opacity, 0.5)
eq_(p2.filename,'../data/images/dummy.png')
## but we need to be able to do:
p2 = syms[0] # get the actual symbolizer, not the variant object
# this will throw for now...
assert isinstance(p2,mapnik.PointSymbolizer)
eq_(p2.allow_overlap, True)
eq_(p2.opacity, 0.5)
eq_(p2.filename,'../data/images/dummy.png')
if __name__ == "__main__":
setup()
run_all(eval(x) for x in dir() if x.startswith("test_"))
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