Pillow/Tests/test_file_mic.py
2020-08-08 22:39:29 +03:00

64 lines
1.6 KiB
Python

import pytest
from PIL import Image, ImagePalette
from .helper import assert_image_similar, hopper, skip_unless_feature
MicImagePlugin = pytest.importorskip(
"PIL.MicImagePlugin", reason="olefile not installed"
)
pytestmark = skip_unless_feature("libtiff")
TEST_FILE = "Tests/images/hopper.mic"
def test_sanity():
with Image.open(TEST_FILE) as im:
im.load()
assert im.mode == "RGBA"
assert im.size == (128, 128)
assert im.format == "MIC"
# Adjust for the gamma of 2.2 encoded into the file
lut = ImagePalette.make_gamma_lut(1 / 2.2)
im = Image.merge("RGBA", [chan.point(lut) for chan in im.split()])
im2 = hopper("RGBA")
assert_image_similar(im, im2, 10)
def test_n_frames():
with Image.open(TEST_FILE) as im:
assert im.n_frames == 1
def test_is_animated():
with Image.open(TEST_FILE) as im:
assert not im.is_animated
def test_tell():
with Image.open(TEST_FILE) as im:
assert im.tell() == 0
def test_seek():
with Image.open(TEST_FILE) as im:
im.seek(0)
assert im.tell() == 0
with pytest.raises(EOFError):
im.seek(99)
assert im.tell() == 0
def test_invalid_file():
# Test an invalid OLE file
invalid_file = "Tests/images/flower.jpg"
with pytest.raises(SyntaxError):
MicImagePlugin.MicImageFile(invalid_file)
# Test a valid OLE file, but not a MIC file
ole_file = "Tests/images/test-ole-file.doc"
with pytest.raises(SyntaxError):
MicImagePlugin.MicImageFile(ole_file)