mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-09-21 19:38:57 +03:00
4de5477b61
With the introduction and use of pytest, it is simple and easy to
execute specific tests in isolation through documented command line
arguments. Either by specifying the module path or through the `-k
EXPRESSION` argument. There is no longer any need to provide the
boilerplate:
if __name__ == '__main__':
unittest.main()
To every test file. It is simply noise.
The pattern remains in test files that aren't named with `test_*` as
those files are not discovered and executed by pytest by default.
369 lines
12 KiB
Python
369 lines
12 KiB
Python
from .helper import unittest, PillowTestCase, hopper, on_appveyor
|
|
|
|
from PIL import Image
|
|
import sys
|
|
import os
|
|
|
|
# CFFI imports pycparser which doesn't support PYTHONOPTIMIZE=2
|
|
# https://github.com/eliben/pycparser/pull/198#issuecomment-317001670
|
|
if os.environ.get("PYTHONOPTIMIZE") == "2":
|
|
cffi = None
|
|
else:
|
|
try:
|
|
from PIL import PyAccess
|
|
import cffi
|
|
except ImportError:
|
|
cffi = None
|
|
|
|
|
|
class AccessTest(PillowTestCase):
|
|
# initial value
|
|
_init_cffi_access = Image.USE_CFFI_ACCESS
|
|
_need_cffi_access = False
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
Image.USE_CFFI_ACCESS = cls._need_cffi_access
|
|
|
|
@classmethod
|
|
def tearDownClass(cls):
|
|
Image.USE_CFFI_ACCESS = cls._init_cffi_access
|
|
|
|
|
|
class TestImagePutPixel(AccessTest):
|
|
def test_sanity(self):
|
|
im1 = hopper()
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
|
|
for y in range(im1.size[1]):
|
|
for x in range(im1.size[0]):
|
|
pos = x, y
|
|
im2.putpixel(pos, im1.getpixel(pos))
|
|
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
im2.readonly = 1
|
|
|
|
for y in range(im1.size[1]):
|
|
for x in range(im1.size[0]):
|
|
pos = x, y
|
|
im2.putpixel(pos, im1.getpixel(pos))
|
|
|
|
self.assertFalse(im2.readonly)
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
|
|
pix1 = im1.load()
|
|
pix2 = im2.load()
|
|
|
|
for y in range(im1.size[1]):
|
|
for x in range(im1.size[0]):
|
|
pix2[x, y] = pix1[x, y]
|
|
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
def test_sanity_negative_index(self):
|
|
im1 = hopper()
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
|
|
width, height = im1.size
|
|
self.assertEqual(im1.getpixel((0, 0)), im1.getpixel((-width, -height)))
|
|
self.assertEqual(im1.getpixel((-1, -1)),
|
|
im1.getpixel((width-1, height-1)))
|
|
|
|
for y in range(-1, -im1.size[1]-1, -1):
|
|
for x in range(-1, -im1.size[0]-1, -1):
|
|
pos = x, y
|
|
im2.putpixel(pos, im1.getpixel(pos))
|
|
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
im2.readonly = 1
|
|
|
|
for y in range(-1, -im1.size[1]-1, -1):
|
|
for x in range(-1, -im1.size[0]-1, -1):
|
|
pos = x, y
|
|
im2.putpixel(pos, im1.getpixel(pos))
|
|
|
|
self.assertFalse(im2.readonly)
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
im2 = Image.new(im1.mode, im1.size, 0)
|
|
|
|
pix1 = im1.load()
|
|
pix2 = im2.load()
|
|
|
|
for y in range(-1, -im1.size[1]-1, -1):
|
|
for x in range(-1, -im1.size[0]-1, -1):
|
|
pix2[x, y] = pix1[x, y]
|
|
|
|
self.assert_image_equal(im1, im2)
|
|
|
|
|
|
class TestImageGetPixel(AccessTest):
|
|
@staticmethod
|
|
def color(mode):
|
|
bands = Image.getmodebands(mode)
|
|
if bands == 1:
|
|
return 1
|
|
else:
|
|
return tuple(range(1, bands + 1))
|
|
|
|
def check(self, mode, c=None):
|
|
if not c:
|
|
c = self.color(mode)
|
|
|
|
# check putpixel
|
|
im = Image.new(mode, (1, 1), None)
|
|
im.putpixel((0, 0), c)
|
|
self.assertEqual(
|
|
im.getpixel((0, 0)), c,
|
|
"put/getpixel roundtrip failed for mode %s, color %s" % (mode, c))
|
|
|
|
# check putpixel negative index
|
|
im.putpixel((-1, -1), c)
|
|
self.assertEqual(
|
|
im.getpixel((-1, -1)), c,
|
|
"put/getpixel roundtrip negative index failed"
|
|
" for mode %s, color %s" % (mode, c))
|
|
|
|
# Check 0
|
|
im = Image.new(mode, (0, 0), None)
|
|
with self.assertRaises(IndexError):
|
|
im.putpixel((0, 0), c)
|
|
with self.assertRaises(IndexError):
|
|
im.getpixel((0, 0))
|
|
# Check 0 negative index
|
|
with self.assertRaises(IndexError):
|
|
im.putpixel((-1, -1), c)
|
|
with self.assertRaises(IndexError):
|
|
im.getpixel((-1, -1))
|
|
|
|
# check initial color
|
|
im = Image.new(mode, (1, 1), c)
|
|
self.assertEqual(
|
|
im.getpixel((0, 0)), c,
|
|
"initial color failed for mode %s, color %s " % (mode, c))
|
|
# check initial color negative index
|
|
self.assertEqual(
|
|
im.getpixel((-1, -1)), c,
|
|
"initial color failed with negative index"
|
|
"for mode %s, color %s " % (mode, c))
|
|
|
|
# Check 0
|
|
im = Image.new(mode, (0, 0), c)
|
|
with self.assertRaises(IndexError):
|
|
im.getpixel((0, 0))
|
|
# Check 0 negative index
|
|
with self.assertRaises(IndexError):
|
|
im.getpixel((-1, -1))
|
|
|
|
def test_basic(self):
|
|
for mode in ("1", "L", "LA", "I", "I;16", "I;16B", "F",
|
|
"P", "PA", "RGB", "RGBA", "RGBX", "CMYK", "YCbCr"):
|
|
self.check(mode)
|
|
|
|
def test_signedness(self):
|
|
# see https://github.com/python-pillow/Pillow/issues/452
|
|
# pixelaccess is using signed int* instead of uint*
|
|
for mode in ("I;16", "I;16B"):
|
|
self.check(mode, 2**15-1)
|
|
self.check(mode, 2**15)
|
|
self.check(mode, 2**15+1)
|
|
self.check(mode, 2**16-1)
|
|
|
|
def test_p_putpixel_rgb_rgba(self):
|
|
for color in [(255, 0, 0), (255, 0, 0, 255)]:
|
|
im = Image.new("P", (1, 1), 0)
|
|
im.putpixel((0, 0), color)
|
|
self.assertEqual(im.convert("RGB").getpixel((0, 0)), (255, 0, 0))
|
|
|
|
|
|
@unittest.skipIf(cffi is None, "No cffi")
|
|
class TestCffiPutPixel(TestImagePutPixel):
|
|
_need_cffi_access = True
|
|
|
|
|
|
@unittest.skipIf(cffi is None, "No cffi")
|
|
class TestCffiGetPixel(TestImageGetPixel):
|
|
_need_cffi_access = True
|
|
|
|
|
|
@unittest.skipIf(cffi is None, "No cffi")
|
|
class TestCffi(AccessTest):
|
|
_need_cffi_access = True
|
|
|
|
def _test_get_access(self, im):
|
|
"""Do we get the same thing as the old pixel access
|
|
|
|
Using private interfaces, forcing a capi access and
|
|
a pyaccess for the same image"""
|
|
caccess = im.im.pixel_access(False)
|
|
access = PyAccess.new(im, False)
|
|
|
|
w, h = im.size
|
|
for x in range(0, w, 10):
|
|
for y in range(0, h, 10):
|
|
self.assertEqual(access[(x, y)], caccess[(x, y)])
|
|
|
|
# Access an out-of-range pixel
|
|
self.assertRaises(ValueError,
|
|
lambda: access[(access.xsize+1, access.ysize+1)])
|
|
|
|
def test_get_vs_c(self):
|
|
rgb = hopper('RGB')
|
|
rgb.load()
|
|
self._test_get_access(rgb)
|
|
self._test_get_access(hopper('RGBA'))
|
|
self._test_get_access(hopper('L'))
|
|
self._test_get_access(hopper('LA'))
|
|
self._test_get_access(hopper('1'))
|
|
self._test_get_access(hopper('P'))
|
|
# self._test_get_access(hopper('PA')) # PA -- how do I make a PA image?
|
|
self._test_get_access(hopper('F'))
|
|
|
|
im = Image.new('I;16', (10, 10), 40000)
|
|
self._test_get_access(im)
|
|
im = Image.new('I;16L', (10, 10), 40000)
|
|
self._test_get_access(im)
|
|
im = Image.new('I;16B', (10, 10), 40000)
|
|
self._test_get_access(im)
|
|
|
|
im = Image.new('I', (10, 10), 40000)
|
|
self._test_get_access(im)
|
|
# These don't actually appear to be modes that I can actually make,
|
|
# as unpack sets them directly into the I mode.
|
|
# im = Image.new('I;32L', (10, 10), -2**10)
|
|
# self._test_get_access(im)
|
|
# im = Image.new('I;32B', (10, 10), 2**10)
|
|
# self._test_get_access(im)
|
|
|
|
def _test_set_access(self, im, color):
|
|
"""Are we writing the correct bits into the image?
|
|
|
|
Using private interfaces, forcing a capi access and
|
|
a pyaccess for the same image"""
|
|
caccess = im.im.pixel_access(False)
|
|
access = PyAccess.new(im, False)
|
|
|
|
w, h = im.size
|
|
for x in range(0, w, 10):
|
|
for y in range(0, h, 10):
|
|
access[(x, y)] = color
|
|
self.assertEqual(color, caccess[(x, y)])
|
|
|
|
# Attempt to set the value on a read-only image
|
|
access = PyAccess.new(im, True)
|
|
with self.assertRaises(ValueError):
|
|
access[(0, 0)] = color
|
|
|
|
def test_set_vs_c(self):
|
|
rgb = hopper('RGB')
|
|
rgb.load()
|
|
self._test_set_access(rgb, (255, 128, 0))
|
|
self._test_set_access(hopper('RGBA'), (255, 192, 128, 0))
|
|
self._test_set_access(hopper('L'), 128)
|
|
self._test_set_access(hopper('LA'), (128, 128))
|
|
self._test_set_access(hopper('1'), 255)
|
|
self._test_set_access(hopper('P'), 128)
|
|
# self._test_set_access(i, (128, 128)) #PA -- undone how to make
|
|
self._test_set_access(hopper('F'), 1024.0)
|
|
|
|
im = Image.new('I;16', (10, 10), 40000)
|
|
self._test_set_access(im, 45000)
|
|
im = Image.new('I;16L', (10, 10), 40000)
|
|
self._test_set_access(im, 45000)
|
|
im = Image.new('I;16B', (10, 10), 40000)
|
|
self._test_set_access(im, 45000)
|
|
|
|
im = Image.new('I', (10, 10), 40000)
|
|
self._test_set_access(im, 45000)
|
|
# im = Image.new('I;32L', (10, 10), -(2**10))
|
|
# self._test_set_access(im, -(2**13)+1)
|
|
# im = Image.new('I;32B', (10, 10), 2**10)
|
|
# self._test_set_access(im, 2**13-1)
|
|
|
|
def test_not_implemented(self):
|
|
self.assertIsNone(PyAccess.new(hopper("BGR;15")))
|
|
|
|
# ref https://github.com/python-pillow/Pillow/pull/2009
|
|
def test_reference_counting(self):
|
|
size = 10
|
|
|
|
for _ in range(10):
|
|
# Do not save references to the image, only to the access object
|
|
px = Image.new('L', (size, 1), 0).load()
|
|
for i in range(size):
|
|
# pixels can contain garbage if image is released
|
|
self.assertEqual(px[i, 0], 0)
|
|
|
|
def test_p_putpixel_rgb_rgba(self):
|
|
for color in [(255, 0, 0), (255, 0, 0, 255)]:
|
|
im = Image.new("P", (1, 1), 0)
|
|
access = PyAccess.new(im, False)
|
|
access.putpixel((0, 0), color)
|
|
self.assertEqual(im.convert("RGB").getpixel((0, 0)), (255, 0, 0))
|
|
|
|
|
|
class TestEmbeddable(unittest.TestCase):
|
|
@unittest.skipIf(not sys.platform.startswith('win32') or
|
|
on_appveyor(),
|
|
"Failing on AppVeyor when run from subprocess, not from shell")
|
|
def test_embeddable(self):
|
|
import subprocess
|
|
import ctypes
|
|
from distutils import ccompiler, sysconfig
|
|
|
|
with open('embed_pil.c', 'w') as fh:
|
|
fh.write("""
|
|
#include "Python.h"
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
char *home = "%s";
|
|
#if PY_MAJOR_VERSION >= 3
|
|
wchar_t *whome = Py_DecodeLocale(home, NULL);
|
|
Py_SetPythonHome(whome);
|
|
#else
|
|
Py_SetPythonHome(home);
|
|
#endif
|
|
|
|
Py_InitializeEx(0);
|
|
Py_DECREF(PyImport_ImportModule("PIL.Image"));
|
|
Py_Finalize();
|
|
|
|
Py_InitializeEx(0);
|
|
Py_DECREF(PyImport_ImportModule("PIL.Image"));
|
|
Py_Finalize();
|
|
|
|
#if PY_MAJOR_VERSION >= 3
|
|
PyMem_RawFree(whome);
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
""" % sys.prefix.replace('\\', '\\\\'))
|
|
|
|
compiler = ccompiler.new_compiler()
|
|
compiler.add_include_dir(sysconfig.get_python_inc())
|
|
|
|
libdir = (sysconfig.get_config_var('LIBDIR') or
|
|
sysconfig.get_python_inc().replace('include', 'libs'))
|
|
print(libdir)
|
|
compiler.add_library_dir(libdir)
|
|
objects = compiler.compile(['embed_pil.c'])
|
|
compiler.link_executable(objects, 'embed_pil')
|
|
|
|
env = os.environ.copy()
|
|
env["PATH"] = sys.prefix + ';' + env["PATH"]
|
|
|
|
# do not display the Windows Error Reporting dialog
|
|
ctypes.windll.kernel32.SetErrorMode(0x0002)
|
|
|
|
process = subprocess.Popen(['embed_pil.exe'], env=env)
|
|
process.communicate()
|
|
self.assertEqual(process.returncode, 0)
|