mirror of
https://github.com/python-pillow/Pillow.git
synced 2025-11-01 00:17:27 +03:00
120 lines
2.8 KiB
Python
120 lines
2.8 KiB
Python
from __future__ import annotations
|
|
|
|
import filecmp
|
|
import warnings
|
|
from pathlib import Path
|
|
|
|
import pytest
|
|
|
|
from PIL import Image, ImImagePlugin
|
|
|
|
from .helper import assert_image_equal_tofile, hopper, is_pypy
|
|
|
|
# sample im
|
|
TEST_IM = "Tests/images/hopper.im"
|
|
|
|
|
|
def test_sanity() -> None:
|
|
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: Path) -> None:
|
|
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() -> None:
|
|
def open() -> None:
|
|
im = Image.open(TEST_IM)
|
|
im.load()
|
|
|
|
with pytest.warns(ResourceWarning):
|
|
open()
|
|
|
|
|
|
def test_closed_file() -> None:
|
|
with warnings.catch_warnings():
|
|
im = Image.open(TEST_IM)
|
|
im.load()
|
|
im.close()
|
|
|
|
|
|
def test_context_manager() -> None:
|
|
with warnings.catch_warnings():
|
|
with Image.open(TEST_IM) as im:
|
|
im.load()
|
|
|
|
|
|
def test_tell() -> None:
|
|
# Arrange
|
|
with Image.open(TEST_IM) as im:
|
|
# Act
|
|
frame = im.tell()
|
|
|
|
# Assert
|
|
assert frame == 0
|
|
|
|
|
|
def test_n_frames() -> None:
|
|
with Image.open(TEST_IM) as im:
|
|
assert im.n_frames == 1
|
|
assert not im.is_animated
|
|
|
|
|
|
def test_eoferror() -> None:
|
|
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)
|
|
|
|
|
|
@pytest.mark.parametrize("mode", ("RGB", "P", "PA"))
|
|
def test_roundtrip(mode: str, tmp_path: Path) -> None:
|
|
out = str(tmp_path / "temp.im")
|
|
im = hopper(mode)
|
|
im.save(out)
|
|
assert_image_equal_tofile(im, out)
|
|
|
|
|
|
def test_small_palette(tmp_path: Path) -> None:
|
|
im = Image.new("P", (1, 1))
|
|
colors = [0, 1, 2]
|
|
im.putpalette(colors)
|
|
|
|
out = str(tmp_path / "temp.im")
|
|
im.save(out)
|
|
|
|
with Image.open(out) as reloaded:
|
|
assert reloaded.getpalette() == colors + [0] * 765
|
|
|
|
|
|
def test_save_unsupported_mode(tmp_path: Path) -> None:
|
|
out = str(tmp_path / "temp.im")
|
|
im = hopper("HSV")
|
|
with pytest.raises(ValueError):
|
|
im.save(out)
|
|
|
|
|
|
def test_invalid_file() -> None:
|
|
invalid_file = "Tests/images/flower.jpg"
|
|
|
|
with pytest.raises(SyntaxError):
|
|
ImImagePlugin.ImImageFile(invalid_file)
|
|
|
|
|
|
def test_number() -> None:
|
|
assert ImImagePlugin.number("1.2") == 1.2
|