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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import os, mapnik
from timeit import Timer, time
from nose.tools import *
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('.'))
def test_tiff_round_trip():
filepath = '/tmp/mapnik-tiff-io.tiff'
im = mapnik.Image(255,267)
im.background = mapnik.Color('rgba(1,2,3,.5)')
im.save(filepath,'tiff')
im2 = mapnik.Image.open(filepath)
eq_(im.width(),im2.width())
eq_(im.height(),im2.height())
eq_(len(im.tostring()),len(im2.tostring()))
eq_(len(im.tostring('tiff')),len(im2.tostring('tiff')))
def test_jpeg_round_trip():
filepath = '/tmp/mapnik-jpeg-io.jpeg'
im = mapnik.Image(255,267)
im.background = mapnik.Color('rgba(1,2,3,.5)')
im.save(filepath,'jpeg')
im2 = mapnik.Image.open(filepath)
eq_(im.width(),im2.width())
eq_(im.height(),im2.height())
eq_(len(im.tostring()),len(im2.tostring()))
eq_(len(im.tostring('jpeg')),len(im2.tostring('jpeg')))
def test_png_round_trip():
filepath = '/tmp/mapnik-png-io.png'
im = mapnik.Image(255,267)
im.background = mapnik.Color('rgba(1,2,3,.5)')
im.save(filepath,'png')
im2 = mapnik.Image.open(filepath)
eq_(im.width(),im2.width())
eq_(im.height(),im2.height())
eq_(len(im.tostring()),len(im2.tostring()))
eq_(len(im.tostring('png')),len(im2.tostring('png')))
eq_(len(im.tostring('png8')),len(im2.tostring('png8')))
def test_image_open_from_string():
filepath = '../data/images/dummy.png'
im1 = mapnik.Image.open(filepath)
im2 = mapnik.Image.fromstring(open(filepath,'rb').read())
eq_(im1.width(),im2.width())
length = len(im1.tostring())
eq_(length,len(im2.tostring()))
eq_(len(mapnik.Image.fromstring(im1.tostring('png')).tostring()),length)
eq_(len(mapnik.Image.fromstring(im1.tostring('jpeg')).tostring()),length)
eq_(len(mapnik.Image.frombuffer(buffer(im1.tostring('png'))).tostring()),length)
eq_(len(mapnik.Image.frombuffer(buffer(im1.tostring('jpeg'))).tostring()),length)
# TODO - https://github.com/mapnik/mapnik/issues/1831
eq_(len(mapnik.Image.fromstring(im1.tostring('tiff')).tostring()),length)
eq_(len(mapnik.Image.frombuffer(buffer(im1.tostring('tiff'))).tostring()),length)
if __name__ == "__main__":
setup()
run_all(eval(x) for x in dir() if x.startswith("test_"))
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