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# coding=utf8
import os
from nose.tools import eq_
from nose.plugins.skip import SkipTest
import mapnik
from .utilities import execution_path, run_all
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 'shape' in mapnik.DatasourceCache.plugin_names():
#@raises(RuntimeError)
def test_zoom_all_will_fail():
if not os.path.exists('../data/good_maps/wgs842merc_reprojection.xml'):
raise SkipTest
m = mapnik.Map(512, 512)
mapnik.load_map(m, '../data/good_maps/wgs842merc_reprojection.xml')
m.zoom_all()
def test_zoom_all_will_work_with_max_extent():
if not os.path.exists('../data/good_maps/wgs842merc_reprojection.xml'):
raise SkipTest
m = mapnik.Map(512, 512)
mapnik.load_map(m, '../data/good_maps/wgs842merc_reprojection.xml')
merc_bounds = mapnik.Box2d(-20037508.34, -
20037508.34, 20037508.34, 20037508.34)
m.maximum_extent = merc_bounds
m.zoom_all()
# note - fixAspectRatio is being called, then re-clipping to maxextent
# which makes this hard to predict
# eq_(m.envelope(),merc_bounds)
#m = mapnik.Map(512,512)
# mapnik.load_map(m,'../data/good_maps/wgs842merc_reprojection.xml')
#merc_bounds = mapnik.Box2d(-20037508.34,-20037508.34,20037508.34,20037508.34)
# m.zoom_to_box(merc_bounds)
# eq_(m.envelope(),merc_bounds)
def test_visual_zoom_all_rendering1():
if not os.path.exists('../data/good_maps/wgs842merc_reprojection.xml'):
raise SkipTest
m = mapnik.Map(512, 512)
mapnik.load_map(m, '../data/good_maps/wgs842merc_reprojection.xml')
merc_bounds = mapnik.Box2d(-20037508.34, -
20037508.34, 20037508.34, 20037508.34)
m.maximum_extent = merc_bounds
m.zoom_all()
im = mapnik.Image(512, 512)
mapnik.render(m, im)
actual = '/tmp/mapnik-wgs842merc-reprojection-render.png'
expected = 'images/support/mapnik-wgs842merc-reprojection-render.png'
im.save(actual, 'png32')
expected_im = mapnik.Image.open(expected)
eq_(im.tostring('png32'),
expected_im.tostring('png32'),
'failed comparing actual (%s) and expected (%s)' % (actual,
'test/python_tests/' + expected))
def test_visual_zoom_all_rendering2():
if not os.path.exists('../data/good_maps/wgs842merc_reprojection.xml'):
raise SkipTest
m = mapnik.Map(512, 512)
mapnik.load_map(m, '../data/good_maps/merc2wgs84_reprojection.xml')
m.zoom_all()
im = mapnik.Image(512, 512)
mapnik.render(m, im)
actual = '/tmp/mapnik-merc2wgs84-reprojection-render.png'
expected = 'images/support/mapnik-merc2wgs84-reprojection-render.png'
im.save(actual, 'png32')
expected_im = mapnik.Image.open(expected)
eq_(im.tostring('png32'),
expected_im.tostring('png32'),
'failed comparing actual (%s) and expected (%s)' % (actual,
'test/python_tests/' + expected))
# maximum-extent read from map.xml
def test_visual_zoom_all_rendering3():
if not os.path.exists('../data/good_maps/bounds_clipping.xml'):
raise SkipTest
m = mapnik.Map(512, 512)
mapnik.load_map(m, '../data/good_maps/bounds_clipping.xml')
m.zoom_all()
im = mapnik.Image(512, 512)
mapnik.render(m, im)
actual = '/tmp/mapnik-merc2merc-reprojection-render1.png'
expected = 'images/support/mapnik-merc2merc-reprojection-render1.png'
im.save(actual, 'png32')
expected_im = mapnik.Image.open(expected)
eq_(im.tostring('png32'),
expected_im.tostring('png32'),
'failed comparing actual (%s) and expected (%s)' % (actual,
'test/python_tests/' + expected))
# no maximum-extent
def test_visual_zoom_all_rendering4():
if not os.path.exists('../data/good_maps/bounds_clipping.xml'):
raise SkipTest
m = mapnik.Map(512, 512)
mapnik.load_map(m, '../data/good_maps/bounds_clipping.xml')
m.maximum_extent = None
m.zoom_all()
im = mapnik.Image(512, 512)
mapnik.render(m, im)
actual = '/tmp/mapnik-merc2merc-reprojection-render2.png'
expected = 'images/support/mapnik-merc2merc-reprojection-render2.png'
im.save(actual, 'png32')
expected_im = mapnik.Image.open(expected)
eq_(im.tostring('png32'),
expected_im.tostring('png32'),
'failed comparing actual (%s) and expected (%s)' % (actual,
'test/python_tests/' + expected))
if __name__ == "__main__":
setup()
exit(run_all(eval(x) for x in dir() if x.startswith("test_")))
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