mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-12-25 17:36:18 +03:00
112 lines
2.3 KiB
Python
112 lines
2.3 KiB
Python
import filecmp
|
|
|
|
import pytest
|
|
|
|
from PIL import Image, ImImagePlugin
|
|
|
|
from .helper import assert_image_equal, hopper, is_pypy
|
|
|
|
# sample im
|
|
TEST_IM = "Tests/images/hopper.im"
|
|
|
|
|
|
def test_sanity():
|
|
with Image.open(TEST_IM) as im:
|
|
im.load()
|
|
assert im.mode == "RGB"
|
|
assert im.size == (128, 128)
|
|
assert im.format == "IM"
|
|
|
|
|
|
def test_name_limit(tmp_path):
|
|
out = str(tmp_path / ("name_limit_test" * 7 + ".im"))
|
|
with Image.open(TEST_IM) as im:
|
|
im.save(out)
|
|
assert filecmp.cmp(out, "Tests/images/hopper_long_name.im")
|
|
|
|
|
|
@pytest.mark.skipif(is_pypy(), reason="Requires CPython")
|
|
def test_unclosed_file():
|
|
def open():
|
|
im = Image.open(TEST_IM)
|
|
im.load()
|
|
|
|
pytest.warns(ResourceWarning, open)
|
|
|
|
|
|
def test_closed_file():
|
|
def open():
|
|
im = Image.open(TEST_IM)
|
|
im.load()
|
|
im.close()
|
|
|
|
pytest.warns(None, open)
|
|
|
|
|
|
def test_context_manager():
|
|
def open():
|
|
with Image.open(TEST_IM) as im:
|
|
im.load()
|
|
|
|
pytest.warns(None, open)
|
|
|
|
|
|
def test_tell():
|
|
# Arrange
|
|
with Image.open(TEST_IM) as im:
|
|
|
|
# Act
|
|
frame = im.tell()
|
|
|
|
# Assert
|
|
assert frame == 0
|
|
|
|
|
|
def test_n_frames():
|
|
with Image.open(TEST_IM) as im:
|
|
assert im.n_frames == 1
|
|
assert not im.is_animated
|
|
|
|
|
|
def test_eoferror():
|
|
with Image.open(TEST_IM) as im:
|
|
n_frames = im.n_frames
|
|
|
|
# Test seeking past the last frame
|
|
with pytest.raises(EOFError):
|
|
im.seek(n_frames)
|
|
assert im.tell() < n_frames
|
|
|
|
# Test that seeking to the last frame does not raise an error
|
|
im.seek(n_frames - 1)
|
|
|
|
|
|
def test_roundtrip(tmp_path):
|
|
def roundtrip(mode):
|
|
out = str(tmp_path / "temp.im")
|
|
im = hopper(mode)
|
|
im.save(out)
|
|
with Image.open(out) as reread:
|
|
assert_image_equal(reread, im)
|
|
|
|
for mode in ["RGB", "P", "PA"]:
|
|
roundtrip(mode)
|
|
|
|
|
|
def test_save_unsupported_mode(tmp_path):
|
|
out = str(tmp_path / "temp.im")
|
|
im = hopper("HSV")
|
|
with pytest.raises(ValueError):
|
|
im.save(out)
|
|
|
|
|
|
def test_invalid_file():
|
|
invalid_file = "Tests/images/flower.jpg"
|
|
|
|
with pytest.raises(SyntaxError):
|
|
ImImagePlugin.ImImageFile(invalid_file)
|
|
|
|
|
|
def test_number():
|
|
assert ImImagePlugin.number("1.2") == 1.2
|