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import io
import pytest
from PIL import EpsImagePlugin, Image, features
from .helper import assert_image_similar, hopper, skip_unless_feature
HAS_GHOSTSCRIPT = EpsImagePlugin.has_ghostscript()
# Our two EPS test files (they are identical except for their bounding boxes)
FILE1 = "Tests/images/zero_bb.eps"
FILE2 = "Tests/images/non_zero_bb.eps"
# Due to palletization, we'll need to convert these to RGB after load
FILE1_COMPARE = "Tests/images/zero_bb.png"
FILE1_COMPARE_SCALE2 = "Tests/images/zero_bb_scale2.png"
FILE2_COMPARE = "Tests/images/non_zero_bb.png"
FILE2_COMPARE_SCALE2 = "Tests/images/non_zero_bb_scale2.png"
# EPS test files with binary preview
FILE3 = "Tests/images/binary_preview_map.eps"
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_sanity():
# Regular scale
with Image.open(FILE1) as image1:
image1.load()
assert image1.mode == "RGB"
assert image1.size == (460, 352)
assert image1.format == "EPS"
with Image.open(FILE2) as image2:
image2.load()
assert image2.mode == "RGB"
assert image2.size == (360, 252)
assert image2.format == "EPS"
# Double scale
with Image.open(FILE1) as image1_scale2:
image1_scale2.load(scale=2)
assert image1_scale2.mode == "RGB"
assert image1_scale2.size == (920, 704)
assert image1_scale2.format == "EPS"
with Image.open(FILE2) as image2_scale2:
image2_scale2.load(scale=2)
assert image2_scale2.mode == "RGB"
assert image2_scale2.size == (720, 504)
assert image2_scale2.format == "EPS"
def test_invalid_file():
invalid_file = "Tests/images/flower.jpg"
with pytest.raises(SyntaxError):
EpsImagePlugin.EpsImageFile(invalid_file)
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_cmyk():
with Image.open("Tests/images/pil_sample_cmyk.eps") as cmyk_image:
assert cmyk_image.mode == "CMYK"
assert cmyk_image.size == (100, 100)
assert cmyk_image.format == "EPS"
cmyk_image.load()
assert cmyk_image.mode == "RGB"
if features.check("jpg"):
with Image.open("Tests/images/pil_sample_rgb.jpg") as target:
assert_image_similar(cmyk_image, target, 10)
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_showpage():
# See https://github.com/python-pillow/Pillow/issues/2615
with Image.open("Tests/images/reqd_showpage.eps") as plot_image:
with Image.open("Tests/images/reqd_showpage.png") as target:
# should not crash/hang
plot_image.load()
# fonts could be slightly different
assert_image_similar(plot_image, target, 6)
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_file_object(tmp_path):
# issue 479
with Image.open(FILE1) as image1:
with open(str(tmp_path / "temp.eps"), "wb") as fh:
image1.save(fh, "EPS")
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_iobase_object(tmp_path):
# issue 479
with Image.open(FILE1) as image1:
with open(str(tmp_path / "temp_iobase.eps"), "wb") as fh:
image1.save(fh, "EPS")
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_bytesio_object():
with open(FILE1, "rb") as f:
img_bytes = io.BytesIO(f.read())
with Image.open(img_bytes) as img:
img.load()
with Image.open(FILE1_COMPARE) as image1_scale1_compare:
image1_scale1_compare = image1_scale1_compare.convert("RGB")
image1_scale1_compare.load()
assert_image_similar(img, image1_scale1_compare, 5)
def test_image_mode_not_supported(tmp_path):
im = hopper("RGBA")
tmpfile = str(tmp_path / "temp.eps")
with pytest.raises(ValueError):
im.save(tmpfile)
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
@skip_unless_feature("zlib")
def test_render_scale1():
# We need png support for these render test
# Zero bounding box
with Image.open(FILE1) as image1_scale1:
image1_scale1.load()
with Image.open(FILE1_COMPARE) as image1_scale1_compare:
image1_scale1_compare = image1_scale1_compare.convert("RGB")
image1_scale1_compare.load()
assert_image_similar(image1_scale1, image1_scale1_compare, 5)
# Non-Zero bounding box
with Image.open(FILE2) as image2_scale1:
image2_scale1.load()
with Image.open(FILE2_COMPARE) as image2_scale1_compare:
image2_scale1_compare = image2_scale1_compare.convert("RGB")
image2_scale1_compare.load()
assert_image_similar(image2_scale1, image2_scale1_compare, 10)
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
@skip_unless_feature("zlib")
def test_render_scale2():
# We need png support for these render test
# Zero bounding box
with Image.open(FILE1) as image1_scale2:
image1_scale2.load(scale=2)
with Image.open(FILE1_COMPARE_SCALE2) as image1_scale2_compare:
image1_scale2_compare = image1_scale2_compare.convert("RGB")
image1_scale2_compare.load()
assert_image_similar(image1_scale2, image1_scale2_compare, 5)
# Non-Zero bounding box
with Image.open(FILE2) as image2_scale2:
image2_scale2.load(scale=2)
with Image.open(FILE2_COMPARE_SCALE2) as image2_scale2_compare:
image2_scale2_compare = image2_scale2_compare.convert("RGB")
image2_scale2_compare.load()
assert_image_similar(image2_scale2, image2_scale2_compare, 10)
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_resize():
files = [FILE1, FILE2, "Tests/images/illu10_preview.eps"]
for fn in files:
with Image.open(fn) as im:
new_size = (100, 100)
im = im.resize(new_size)
assert im.size == new_size
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_thumbnail():
# Issue #619
# Arrange
files = [FILE1, FILE2]
for fn in files:
with Image.open(FILE1) as im:
new_size = (100, 100)
im.thumbnail(new_size)
assert max(im.size) == max(new_size)
def test_read_binary_preview():
# Issue 302
# open image with binary preview
with Image.open(FILE3):
pass
def test_readline(tmp_path):
# check all the freaking line endings possible from the spec
# test_string = u'something\r\nelse\n\rbaz\rbif\n'
line_endings = ["\r\n", "\n", "\n\r", "\r"]
strings = ["something", "else", "baz", "bif"]
def _test_readline(t, ending):
ending = "Failure with line ending: %s" % (
"".join("%s" % ord(s) for s in ending)
)
assert t.readline().strip("\r\n") == "something", ending
assert t.readline().strip("\r\n") == "else", ending
assert t.readline().strip("\r\n") == "baz", ending
assert t.readline().strip("\r\n") == "bif", ending
def _test_readline_io_psfile(test_string, ending):
f = io.BytesIO(test_string.encode("latin-1"))
t = EpsImagePlugin.PSFile(f)
_test_readline(t, ending)
def _test_readline_file_psfile(test_string, ending):
f = str(tmp_path / "temp.txt")
with open(f, "wb") as w:
w.write(test_string.encode("latin-1"))
with open(f, "rb") as r:
t = EpsImagePlugin.PSFile(r)
_test_readline(t, ending)
for ending in line_endings:
s = ending.join(strings)
_test_readline_io_psfile(s, ending)
_test_readline_file_psfile(s, ending)
def test_open_eps():
# https://github.com/python-pillow/Pillow/issues/1104
# Arrange
FILES = [
"Tests/images/illu10_no_preview.eps",
"Tests/images/illu10_preview.eps",
"Tests/images/illuCS6_no_preview.eps",
"Tests/images/illuCS6_preview.eps",
]
# Act / Assert
for filename in FILES:
with Image.open(filename) as img:
assert img.mode == "RGB"
@pytest.mark.skipif(not HAS_GHOSTSCRIPT, reason="Ghostscript not available")
def test_emptyline():
# Test file includes an empty line in the header data
emptyline_file = "Tests/images/zero_bb_emptyline.eps"
with Image.open(emptyline_file) as image:
image.load()
assert image.mode == "RGB"
assert image.size == (460, 352)
assert image.format == "EPS"
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