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import os
import mapnik
def test_another_compare():
im = mapnik.Image(5, 5)
im2 = mapnik.Image(5, 5)
im2.fill(mapnik.Color('rgba(255,255,255,0)'))
assert 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))
assert im.compare(im) == 0
im2 = mapnik.Image(5, 5, mapnik.ImageType.rgba8)
im2.fill(mapnik.Color(0, 0, 0, 0))
assert im.compare(im2) == 0
assert im2.compare(im) == 0
im2.fill(mapnik.Color(0, 0, 0, 12))
assert im.compare(im2) == 25
assert 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))
assert im.compare(im3) == 3
assert im.compare(im3, 1) == 2
assert im.compare(im3, 2) == 1
assert 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)
assert im2.compare(im, 16) == 2
def test_compare_dimensions():
im = mapnik.Image(2, 2)
im2 = mapnik.Image(3, 3)
assert im.compare(im2) == 4
assert im2.compare(im) == 9
def test_compare_gray8():
im = mapnik.Image(2, 2, mapnik.ImageType.gray8)
im.fill(0)
assert im.compare(im) == 0
im2 = mapnik.Image(2, 2, mapnik.ImageType.gray8)
im2.fill(0)
assert im.compare(im2) == 0
assert im2.compare(im) == 0
assert 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)
assert im.compare(im3) == 3
assert im.compare(im3, 1) == 2
assert im.compare(im3, 2) == 1
assert im.compare(im3, 3) == 0
def test_compare_gray16():
im = mapnik.Image(2, 2, mapnik.ImageType.gray16)
im.fill(0)
assert im.compare(im) == 0
im2 = mapnik.Image(2, 2, mapnik.ImageType.gray16)
im2.fill(0)
assert im.compare(im2) == 0
assert im2.compare(im) == 0
assert 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)
assert im.compare(im3) == 3
assert im.compare(im3, 1) == 2
assert im.compare(im3, 2) == 1
assert im.compare(im3, 3) == 0
def test_compare_gray32f():
im = mapnik.Image(2, 2, mapnik.ImageType.gray32f)
im.fill(0.5)
assert im.compare(im) == 0
im2 = mapnik.Image(2, 2, mapnik.ImageType.gray32f)
im2.fill(0.5)
assert im.compare(im2) == 0
assert im2.compare(im) == 0
assert 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)
assert im.compare(im3) == 3
assert im.compare(im3, 1.0) == 2
assert im.compare(im3, 2.0) == 1
assert im.compare(im3, 3.0) == 0
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