95 lines
3.7 KiB
Python
95 lines
3.7 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, run_all, get_unique_colors
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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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def test_image_premultiply():
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im = mapnik.Image(256,256)
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eq_(im.premultiplied(),False)
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# Premultiply should return true that it worked
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eq_(im.premultiply(), True)
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eq_(im.premultiplied(),True)
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# Premultipling again should return false as nothing should happen
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eq_(im.premultiply(), False)
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eq_(im.premultiplied(),True)
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# Demultiply should return true that it worked
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eq_(im.demultiply(), True)
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eq_(im.premultiplied(),False)
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# Demultiply again should not work and return false as it did nothing
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eq_(im.demultiply(), False)
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eq_(im.premultiplied(),False)
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def test_set_color_to_alpha():
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im = mapnik.Image(256,256)
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im.background(mapnik.Color('rgba(12,12,12,255)'))
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eq_(get_unique_colors(im), ['rgba(12,12,12,255)'])
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im.set_color_to_alpha(mapnik.Color('rgba(12,12,12,0)'))
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eq_(get_unique_colors(im), ['rgba(0,0,0,0)'])
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@raises(RuntimeError)
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def test_negative_image_dimensions():
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# TODO - this may have regressed in https://github.com/mapnik/mapnik/commit/4f3521ac24b61fc8ae8fd344a16dc3a5fdf15af7
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im = mapnik.Image(-40,40)
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def test_jpeg_round_trip():
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filepath = '/tmp/mapnik-jpeg-io.jpeg'
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im = mapnik.Image(255,267)
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im.background(mapnik.Color('rgba(1,2,3,.5)'))
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im.save(filepath,'jpeg')
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im2 = mapnik.Image.open(filepath)
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im3 = mapnik.Image.fromstring(open(filepath,'r').read())
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eq_(im.width(),im2.width())
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eq_(im.height(),im2.height())
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eq_(im.width(),im3.width())
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eq_(im.height(),im3.height())
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eq_(len(im.tostring()),len(im2.tostring()))
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eq_(len(im.tostring('jpeg')),len(im2.tostring('jpeg')))
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eq_(len(im.tostring()),len(im3.tostring()))
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eq_(len(im.tostring('jpeg')),len(im3.tostring('jpeg')))
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def test_png_round_trip():
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filepath = '/tmp/mapnik-png-io.png'
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im = mapnik.Image(255,267)
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im.background(mapnik.Color('rgba(1,2,3,.5)'))
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im.save(filepath,'png')
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im2 = mapnik.Image.open(filepath)
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im3 = mapnik.Image.fromstring(open(filepath,'r').read())
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eq_(im.width(),im2.width())
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eq_(im.height(),im2.height())
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eq_(im.width(),im3.width())
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eq_(im.height(),im3.height())
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eq_(len(im.tostring()),len(im2.tostring()))
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eq_(len(im.tostring('png')),len(im2.tostring('png')))
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eq_(len(im.tostring('png8')),len(im2.tostring('png8')))
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eq_(len(im.tostring()),len(im3.tostring()))
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eq_(len(im.tostring('png')),len(im3.tostring('png')))
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eq_(len(im.tostring('png8')),len(im3.tostring('png8')))
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def test_image_open_from_string():
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filepath = '../data/images/dummy.png'
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im1 = mapnik.Image.open(filepath)
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im2 = mapnik.Image.fromstring(open(filepath,'rb').read())
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eq_(im1.width(),im2.width())
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length = len(im1.tostring())
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eq_(length,len(im2.tostring()))
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eq_(len(mapnik.Image.fromstring(im1.tostring('png')).tostring()),length)
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eq_(len(mapnik.Image.fromstring(im1.tostring('jpeg')).tostring()),length)
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eq_(len(mapnik.Image.frombuffer(buffer(im1.tostring('png'))).tostring()),length)
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eq_(len(mapnik.Image.frombuffer(buffer(im1.tostring('jpeg'))).tostring()),length)
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# TODO - https://github.com/mapnik/mapnik/issues/1831
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eq_(len(mapnik.Image.fromstring(im1.tostring('tiff')).tostring()),length)
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eq_(len(mapnik.Image.frombuffer(buffer(im1.tostring('tiff'))).tostring()),length)
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if __name__ == "__main__":
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setup()
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exit(run_all(eval(x) for x in dir() if x.startswith("test_")))
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