138 lines
No EOL
4.4 KiB
Python
138 lines
No EOL
4.4 KiB
Python
#!/usr/bin/env python
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# -*- coding: utf-8 -*-
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import sys
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import os, mapnik
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from timeit import Timer, time
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from nose.tools import *
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from utilities import execution_path
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def setup():
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# All of the paths used are relative, if we run the tests
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# from another directory we need to chdir()
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os.chdir(execution_path('.'))
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tmp_dir = '/tmp/mapnik-png/'
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if not os.path.exists(tmp_dir):
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os.makedirs(tmp_dir)
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opts = [
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'png',
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'png:t=0',
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'png8:m=o',
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'png8:m=o:c=1',
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'png8:m=o:t=0',
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'png8:m=o:c=1:t=0',
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'png8:m=o:t=1',
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'png8:m=o:t=2',
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'png8:m=h',
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'png8:m=h:c=1',
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'png8:m=h:t=0',
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'png8:m=h:c=1:t=0',
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'png8:m=h:t=1',
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'png8:m=h:t=2',
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]
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# Todo - use itertools.product
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#z_opts = range(1,9+1)
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#t_opts = range(0,2+1)
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def gen_filepath(name,format):
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return os.path.join('images/support/encoding-opts',name+'-'+format.replace(":","+")+'.png')
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generate = False
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def test_expected_encodings():
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im = mapnik.Image(256,256)
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for opt in opts:
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expected = gen_filepath('solid',opt)
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actual = os.path.join(tmp_dir,os.path.basename(expected))
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if generate or not os.path.exists(expected):
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print 'generating expected image %s' % expected
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im.save(expected,opt)
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else:
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im.save(actual,opt)
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eq_(mapnik.Image.open(actual).tostring(),
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mapnik.Image.open(expected).tostring(),
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'%s (actual) not == to %s (expected)' % (actual,expected))
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for opt in opts:
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expected = gen_filepath('blank',opt)
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actual = os.path.join(tmp_dir,os.path.basename(expected))
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if generate or not os.path.exists(expected):
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print 'generating expected image %s' % expected
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im.save(expected,opt)
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else:
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im.save(actual,opt)
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eq_(mapnik.Image.open(actual).tostring(),
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mapnik.Image.open(expected).tostring(),
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'%s (actual) not == to %s (expected)' % (actual,expected))
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def test_transparency_levels():
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# create partial transparency image
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im = mapnik.Image(256,256)
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im.background = mapnik.Color('rgba(255,255,255,.5)')
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c2 = mapnik.Color('rgba(255,255,0,.2)')
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c3 = mapnik.Color('rgb(0,255,255)')
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for y in range(0,im.height()/2):
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for x in range(0,im.width()/2):
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im.set_pixel(x,y,c2)
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for y in range(im.height()/2,im.height()):
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for x in range(im.width()/2,im.width()):
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im.set_pixel(x,y,c3)
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t0 = tmp_dir + 'white0.png'
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t2 = tmp_dir + 'white2.png'
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t1 = tmp_dir + 'white1.png'
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# octree
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format = 'png8:m=o:t=0'
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im.save(t0,format)
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im_in = mapnik.Image.open(t0)
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t0_len = len(im_in.tostring(format))
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eq_(t0_len,len(mapnik.Image.open('images/support/transparency/white0.png').tostring(format)))
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format = 'png8:m=o:t=1'
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im.save(t1,format)
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im_in = mapnik.Image.open(t1)
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t1_len = len(im_in.tostring(format))
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eq_(len(im.tostring(format)),len(mapnik.Image.open('images/support/transparency/white1.png').tostring(format)))
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format = 'png8:m=o:t=2'
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im.save(t2,format)
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im_in = mapnik.Image.open(t2)
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t2_len = len(im_in.tostring(format))
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eq_(len(im.tostring(format)),len(mapnik.Image.open('images/support/transparency/white2.png').tostring(format)))
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eq_(t0_len < t1_len < t2_len,True)
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# hextree
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format = 'png8:m=h:t=0'
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im.save(t0,format)
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im_in = mapnik.Image.open(t0)
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t0_len = len(im_in.tostring(format))
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eq_(t0_len,len(mapnik.Image.open('images/support/transparency/white0.png').tostring(format)))
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format = 'png8:m=h:t=1'
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im.save(t1,format)
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im_in = mapnik.Image.open(t1)
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t1_len = len(im_in.tostring(format))
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eq_(len(im.tostring(format)),len(mapnik.Image.open('images/support/transparency/white1.png').tostring(format)))
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format = 'png8:m=h:t=2'
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im.save(t2,format)
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im_in = mapnik.Image.open(t2)
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t2_len = len(im_in.tostring(format))
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eq_(len(im.tostring(format)),len(mapnik.Image.open('images/support/transparency/white2.png').tostring(format)))
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eq_(t0_len < t1_len < t2_len,True)
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def test_transparency_levels_aerial():
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im = mapnik.Image.open('../data/images/12_654_1580.png')
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im_in = mapnik.Image.open('./images/support/transparency/aerial_rgba.png')
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eq_(len(im.tostring('png')),len(im_in.tostring('png')))
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im_in = mapnik.Image.open('./images/support/transparency/aerial_rgb.png')
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eq_(len(im.tostring('png')),len(im_in.tostring('png')))
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eq_(len(im.tostring('png:t=0')),len(im_in.tostring('png:t=0')))
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if __name__ == "__main__":
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setup()
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[eval(run)() for run in dir() if 'test_' in run] |