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#coding=utf8
import os
import mapnik
from utilities import execution_path, run_all
from nose.tools import *
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('.'))
if 'sqlite' in mapnik.DatasourceCache.plugin_names():
# the negative buffer on the layer should
# override the postive map buffer leading
# only one point to be rendered in the map
def test_layer_buffer_size_1():
m = mapnik.Map(512,512)
eq_(m.buffer_size,0)
mapnik.load_map(m,'../data/good_maps/layer_buffer_size_reduction.xml')
eq_(m.buffer_size,256)
eq_(m.layers[0].buffer_size,-150)
m.zoom_all()
im = mapnik.Image(m.width,m.height)
mapnik.render(m,im)
actual = '/tmp/mapnik-layer-buffer-size.png'
expected = 'images/support/mapnik-layer-buffer-size.png'
im.save(actual)
expected_im = mapnik.Image.open(expected)
eq_(im.tostring(),expected_im.tostring(), 'failed comparing actual (%s) and expected (%s)' % (actual,'tests/python_tests/'+ expected))
if __name__ == "__main__":
setup()
run_all(eval(x) for x in dir() if x.startswith("test_"))
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