mirror of
https://github.com/python-pillow/Pillow.git
synced 2025-10-31 07:57:27 +03:00
102 lines
2.6 KiB
Python
102 lines
2.6 KiB
Python
import pytest
|
|
|
|
from PIL import Image, SgiImagePlugin
|
|
|
|
from .helper import assert_image_equal, assert_image_similar, hopper
|
|
|
|
|
|
def test_rgb():
|
|
# Created with ImageMagick then renamed:
|
|
# convert hopper.ppm -compress None sgi:hopper.rgb
|
|
test_file = "Tests/images/hopper.rgb"
|
|
|
|
with Image.open(test_file) as im:
|
|
assert_image_equal(im, hopper())
|
|
assert im.get_format_mimetype() == "image/rgb"
|
|
|
|
|
|
def test_rgb16():
|
|
test_file = "Tests/images/hopper16.rgb"
|
|
|
|
with Image.open(test_file) as im:
|
|
assert_image_equal(im, hopper())
|
|
|
|
|
|
def test_l():
|
|
# Created with ImageMagick
|
|
# convert hopper.ppm -monochrome -compress None sgi:hopper.bw
|
|
test_file = "Tests/images/hopper.bw"
|
|
|
|
with Image.open(test_file) as im:
|
|
assert_image_similar(im, hopper("L"), 2)
|
|
assert im.get_format_mimetype() == "image/sgi"
|
|
|
|
|
|
def test_rgba():
|
|
# Created with ImageMagick:
|
|
# convert transparent.png -compress None transparent.sgi
|
|
test_file = "Tests/images/transparent.sgi"
|
|
|
|
with Image.open(test_file) as im:
|
|
with Image.open("Tests/images/transparent.png") as target:
|
|
assert_image_equal(im, target)
|
|
assert im.get_format_mimetype() == "image/sgi"
|
|
|
|
|
|
def test_rle():
|
|
# Created with ImageMagick:
|
|
# convert hopper.ppm hopper.sgi
|
|
test_file = "Tests/images/hopper.sgi"
|
|
|
|
with Image.open(test_file) as im:
|
|
with Image.open("Tests/images/hopper.rgb") as target:
|
|
assert_image_equal(im, target)
|
|
|
|
|
|
def test_rle16():
|
|
test_file = "Tests/images/tv16.sgi"
|
|
|
|
with Image.open(test_file) as im:
|
|
with Image.open("Tests/images/tv.rgb") as target:
|
|
assert_image_equal(im, target)
|
|
|
|
|
|
def test_invalid_file():
|
|
invalid_file = "Tests/images/flower.jpg"
|
|
|
|
with pytest.raises(ValueError):
|
|
SgiImagePlugin.SgiImageFile(invalid_file)
|
|
|
|
|
|
def test_write(tmp_path):
|
|
def roundtrip(img):
|
|
out = str(tmp_path / "temp.sgi")
|
|
img.save(out, format="sgi")
|
|
with Image.open(out) as reloaded:
|
|
assert_image_equal(img, reloaded)
|
|
|
|
for mode in ("L", "RGB", "RGBA"):
|
|
roundtrip(hopper(mode))
|
|
|
|
# Test 1 dimension for an L mode image
|
|
roundtrip(Image.new("L", (10, 1)))
|
|
|
|
|
|
def test_write16(tmp_path):
|
|
test_file = "Tests/images/hopper16.rgb"
|
|
|
|
with Image.open(test_file) as im:
|
|
out = str(tmp_path / "temp.sgi")
|
|
im.save(out, format="sgi", bpc=2)
|
|
|
|
with Image.open(out) as reloaded:
|
|
assert_image_equal(im, reloaded)
|
|
|
|
|
|
def test_unsupported_mode(tmp_path):
|
|
im = hopper("LA")
|
|
out = str(tmp_path / "temp.sgi")
|
|
|
|
with pytest.raises(ValueError):
|
|
im.save(out, format="sgi")
|