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#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
from nose.tools import eq_
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('.'))
def test_another_compare():
im = mapnik.Image(5, 5)
im2 = mapnik.Image(5, 5)
im2.fill(mapnik.Color('rgba(255,255,255,0)'))
eq_(im.compare(im2, 16), im.width() * im.height())
def test_compare_rgba8():
im = mapnik.Image(5, 5, mapnik.ImageType.rgba8)
im.fill(mapnik.Color(0, 0, 0, 0))
eq_(im.compare(im), 0)
im2 = mapnik.Image(5, 5, mapnik.ImageType.rgba8)
im2.fill(mapnik.Color(0, 0, 0, 0))
eq_(im.compare(im2), 0)
eq_(im2.compare(im), 0)
im2.fill(mapnik.Color(0, 0, 0, 12))
eq_(im.compare(im2), 25)
eq_(im.compare(im2, 0, False), 0)
im3 = mapnik.Image(5, 5, mapnik.ImageType.rgba8)
im3.set_pixel(0, 0, mapnik.Color(0, 0, 0, 0))
im3.set_pixel(0, 1, mapnik.Color(1, 1, 1, 1))
im3.set_pixel(1, 0, mapnik.Color(2, 2, 2, 2))
im3.set_pixel(1, 1, mapnik.Color(3, 3, 3, 3))
eq_(im.compare(im3), 3)
eq_(im.compare(im3, 1), 2)
eq_(im.compare(im3, 2), 1)
eq_(im.compare(im3, 3), 0)
def test_compare_2_image():
im = mapnik.Image(5, 5)
im.set_pixel(0, 0, mapnik.Color(254, 254, 254, 254))
im.set_pixel(4, 4, mapnik.Color('white'))
im2 = mapnik.Image(5, 5)
eq_(im2.compare(im, 16), 2)
def test_compare_dimensions():
im = mapnik.Image(2, 2)
im2 = mapnik.Image(3, 3)
eq_(im.compare(im2), 4)
eq_(im2.compare(im), 9)
def test_compare_gray8():
im = mapnik.Image(2, 2, mapnik.ImageType.gray8)
im.fill(0)
eq_(im.compare(im), 0)
im2 = mapnik.Image(2, 2, mapnik.ImageType.gray8)
im2.fill(0)
eq_(im.compare(im2), 0)
eq_(im2.compare(im), 0)
eq_(im.compare(im2, 0, False), 0)
im3 = mapnik.Image(2, 2, mapnik.ImageType.gray8)
im3.set_pixel(0, 0, 0)
im3.set_pixel(0, 1, 1)
im3.set_pixel(1, 0, 2)
im3.set_pixel(1, 1, 3)
eq_(im.compare(im3), 3)
eq_(im.compare(im3, 1), 2)
eq_(im.compare(im3, 2), 1)
eq_(im.compare(im3, 3), 0)
def test_compare_gray16():
im = mapnik.Image(2, 2, mapnik.ImageType.gray16)
im.fill(0)
eq_(im.compare(im), 0)
im2 = mapnik.Image(2, 2, mapnik.ImageType.gray16)
im2.fill(0)
eq_(im.compare(im2), 0)
eq_(im2.compare(im), 0)
eq_(im.compare(im2, 0, False), 0)
im3 = mapnik.Image(2, 2, mapnik.ImageType.gray16)
im3.set_pixel(0, 0, 0)
im3.set_pixel(0, 1, 1)
im3.set_pixel(1, 0, 2)
im3.set_pixel(1, 1, 3)
eq_(im.compare(im3), 3)
eq_(im.compare(im3, 1), 2)
eq_(im.compare(im3, 2), 1)
eq_(im.compare(im3, 3), 0)
def test_compare_gray32f():
im = mapnik.Image(2, 2, mapnik.ImageType.gray32f)
im.fill(0.5)
eq_(im.compare(im), 0)
im2 = mapnik.Image(2, 2, mapnik.ImageType.gray32f)
im2.fill(0.5)
eq_(im.compare(im2), 0)
eq_(im2.compare(im), 0)
eq_(im.compare(im2, 0, False), 0)
im3 = mapnik.Image(2, 2, mapnik.ImageType.gray32f)
im3.set_pixel(0, 0, 0.5)
im3.set_pixel(0, 1, 1.5)
im3.set_pixel(1, 0, 2.5)
im3.set_pixel(1, 1, 3.5)
eq_(im.compare(im3), 3)
eq_(im.compare(im3, 1.0), 2)
eq_(im.compare(im3, 2.0), 1)
eq_(im.compare(im3, 3.0), 0)
if __name__ == "__main__":
setup()
exit(run_all(eval(x) for x in dir() if x.startswith("test_")))
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