mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-09-20 19:08:58 +03:00
4a4b90c365
* autotyping: --none-return * autotyping: --scalar-return * autotyping: --int-param * autotyping: --float-param * autotyping: --str-param * autotyping: --annotate-named-param tmp_path:pathlib.Path
93 lines
2.0 KiB
Python
93 lines
2.0 KiB
Python
from __future__ import annotations
|
|
|
|
import warnings
|
|
|
|
import pytest
|
|
|
|
from PIL import DcxImagePlugin, Image
|
|
|
|
from .helper import assert_image_equal, hopper, is_pypy
|
|
|
|
# Created with ImageMagick: convert hopper.ppm hopper.dcx
|
|
TEST_FILE = "Tests/images/hopper.dcx"
|
|
|
|
|
|
def test_sanity() -> None:
|
|
# Arrange
|
|
|
|
# Act
|
|
with Image.open(TEST_FILE) as im:
|
|
# Assert
|
|
assert im.size == (128, 128)
|
|
assert isinstance(im, DcxImagePlugin.DcxImageFile)
|
|
orig = hopper()
|
|
assert_image_equal(im, orig)
|
|
|
|
|
|
@pytest.mark.skipif(is_pypy(), reason="Requires CPython")
|
|
def test_unclosed_file() -> None:
|
|
def open() -> None:
|
|
im = Image.open(TEST_FILE)
|
|
im.load()
|
|
|
|
with pytest.warns(ResourceWarning):
|
|
open()
|
|
|
|
|
|
def test_closed_file() -> None:
|
|
with warnings.catch_warnings():
|
|
im = Image.open(TEST_FILE)
|
|
im.load()
|
|
im.close()
|
|
|
|
|
|
def test_context_manager() -> None:
|
|
with warnings.catch_warnings():
|
|
with Image.open(TEST_FILE) as im:
|
|
im.load()
|
|
|
|
|
|
def test_invalid_file() -> None:
|
|
with open("Tests/images/flower.jpg", "rb") as fp:
|
|
with pytest.raises(SyntaxError):
|
|
DcxImagePlugin.DcxImageFile(fp)
|
|
|
|
|
|
def test_tell() -> None:
|
|
# Arrange
|
|
with Image.open(TEST_FILE) as im:
|
|
# Act
|
|
frame = im.tell()
|
|
|
|
# Assert
|
|
assert frame == 0
|
|
|
|
|
|
def test_n_frames() -> None:
|
|
with Image.open(TEST_FILE) as im:
|
|
assert im.n_frames == 1
|
|
assert not im.is_animated
|
|
|
|
|
|
def test_eoferror() -> None:
|
|
with Image.open(TEST_FILE) 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_seek_too_far() -> None:
|
|
# Arrange
|
|
with Image.open(TEST_FILE) as im:
|
|
frame = 999 # too big on purpose
|
|
|
|
# Act / Assert
|
|
with pytest.raises(EOFError):
|
|
im.seek(frame)
|