mapnik/tests/python_tests/raster_alpha_test.py

56 lines
2.1 KiB
Python

#!/usr/bin/env python
from nose.tools import *
from utilities import execution_path
import os, 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('.'))
if 'gdal' in mapnik.DatasourceCache.plugin_names():
def test_map_alpha_compare():
m = mapnik.Map(600,400)
mapnik.load_map(m,'../data/good_maps/raster-alpha.xml')
m.zoom_all()
actual = '/tmp/mapnik-raster-alpha.png'
expected = 'images/support/raster-alpha.png'
im = mapnik.Image(m.width,m.height)
mapnik.render(m,im)
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))
def test_map_alpha_gradient_compare():
m = mapnik.Map(600,400)
mapnik.load_map(m,'../data/good_maps/raster-alpha-gradient.xml')
m.zoom_all()
actual = '/tmp/mapnik-raster-alpha-gradient.png'
expected = 'images/support/raster-alpha-gradient.png'
im = mapnik.Image(m.width,m.height)
mapnik.render(m,im)
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))
# there should be no gray edges on raster
# https://github.com/mapnik/mapnik/issues/1471
def test_edge_scaling_with_nodata():
m = mapnik.Map(600,400)
mapnik.load_map(m,'../data/good_maps/raster-nodata-edge.xml')
m.zoom_all()
actual = '/tmp/mapnik-raster-nodata-edge.png'
expected = 'images/support/raster-nodata-edge.png'
im = mapnik.Image(m.width,m.height)
mapnik.render(m,im)
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()
[eval(run)() for run in dir() if 'test_' in run]