mirror of
https://github.com/python-pillow/Pillow.git
synced 2024-09-21 19:38:57 +03:00
7da17ad41e
The previous test configuration made it difficult to run a single test with the pytest CLI. There were two major issues: - The Tests directory was not a package. It now includes a __init__.py file and imports from other tests modules are done with relative imports. - setup.cfg always specified the Tests directory. So even if a specific test were specified as a CLI arg, this configuration would also always include all tests. This configuration has been removed to allow specifying a single test on the command line. Contributors can now run specific tests with a single command such as: $ tox -e py37 -- Tests/test_file_pdf.py::TestFilePdf.test_rgb This makes it easy and faster to iterate on a single test failure and is very familiar to those that have previously used tox and pytest. When running tox or pytest with no arguments, they still discover and runs all tests in the Tests directory.
273 lines
9.4 KiB
Python
273 lines
9.4 KiB
Python
from .helper import unittest, PillowTestCase, hopper
|
|
from PIL import Image, PdfParser
|
|
import io
|
|
import os
|
|
import os.path
|
|
import tempfile
|
|
import time
|
|
|
|
|
|
class TestFilePdf(PillowTestCase):
|
|
|
|
def helper_save_as_pdf(self, mode, **kwargs):
|
|
# Arrange
|
|
im = hopper(mode)
|
|
outfile = self.tempfile("temp_" + mode + ".pdf")
|
|
|
|
# Act
|
|
im.save(outfile, **kwargs)
|
|
|
|
# Assert
|
|
self.assertTrue(os.path.isfile(outfile))
|
|
self.assertGreater(os.path.getsize(outfile), 0)
|
|
with PdfParser.PdfParser(outfile) as pdf:
|
|
if kwargs.get("append_images", False) or \
|
|
kwargs.get("append", False):
|
|
self.assertGreater(len(pdf.pages), 1)
|
|
else:
|
|
self.assertGreater(len(pdf.pages), 0)
|
|
|
|
return outfile
|
|
|
|
def test_monochrome(self):
|
|
# Arrange
|
|
mode = "1"
|
|
|
|
# Act / Assert
|
|
self.helper_save_as_pdf(mode)
|
|
|
|
def test_greyscale(self):
|
|
# Arrange
|
|
mode = "L"
|
|
|
|
# Act / Assert
|
|
self.helper_save_as_pdf(mode)
|
|
|
|
def test_rgb(self):
|
|
# Arrange
|
|
mode = "RGB"
|
|
|
|
# Act / Assert
|
|
self.helper_save_as_pdf(mode)
|
|
|
|
def test_p_mode(self):
|
|
# Arrange
|
|
mode = "P"
|
|
|
|
# Act / Assert
|
|
self.helper_save_as_pdf(mode)
|
|
|
|
def test_cmyk_mode(self):
|
|
# Arrange
|
|
mode = "CMYK"
|
|
|
|
# Act / Assert
|
|
self.helper_save_as_pdf(mode)
|
|
|
|
def test_unsupported_mode(self):
|
|
im = hopper("LA")
|
|
outfile = self.tempfile("temp_LA.pdf")
|
|
|
|
self.assertRaises(ValueError, im.save, outfile)
|
|
|
|
def test_save_all(self):
|
|
# Single frame image
|
|
self.helper_save_as_pdf("RGB", save_all=True)
|
|
|
|
# Multiframe image
|
|
im = Image.open("Tests/images/dispose_bgnd.gif")
|
|
|
|
outfile = self.tempfile('temp.pdf')
|
|
im.save(outfile, save_all=True)
|
|
|
|
self.assertTrue(os.path.isfile(outfile))
|
|
self.assertGreater(os.path.getsize(outfile), 0)
|
|
|
|
# Append images
|
|
ims = [hopper()]
|
|
im.copy().save(outfile, save_all=True, append_images=ims)
|
|
|
|
self.assertTrue(os.path.isfile(outfile))
|
|
self.assertGreater(os.path.getsize(outfile), 0)
|
|
|
|
# Test appending using a generator
|
|
def imGenerator(ims):
|
|
for im in ims:
|
|
yield im
|
|
im.save(outfile, save_all=True, append_images=imGenerator(ims))
|
|
|
|
self.assertTrue(os.path.isfile(outfile))
|
|
self.assertGreater(os.path.getsize(outfile), 0)
|
|
|
|
# Append JPEG images
|
|
jpeg = Image.open("Tests/images/flower.jpg")
|
|
jpeg.save(outfile, save_all=True, append_images=[jpeg.copy()])
|
|
|
|
self.assertTrue(os.path.isfile(outfile))
|
|
self.assertGreater(os.path.getsize(outfile), 0)
|
|
|
|
def test_multiframe_normal_save(self):
|
|
# Test saving a multiframe image without save_all
|
|
im = Image.open("Tests/images/dispose_bgnd.gif")
|
|
|
|
outfile = self.tempfile('temp.pdf')
|
|
im.save(outfile)
|
|
|
|
self.assertTrue(os.path.isfile(outfile))
|
|
self.assertGreater(os.path.getsize(outfile), 0)
|
|
|
|
def test_pdf_open(self):
|
|
# fail on a buffer full of null bytes
|
|
self.assertRaises(
|
|
PdfParser.PdfFormatError,
|
|
PdfParser.PdfParser, buf=bytearray(65536))
|
|
|
|
# make an empty PDF object
|
|
with PdfParser.PdfParser() as empty_pdf:
|
|
self.assertEqual(len(empty_pdf.pages), 0)
|
|
self.assertEqual(len(empty_pdf.info), 0)
|
|
self.assertFalse(empty_pdf.should_close_buf)
|
|
self.assertFalse(empty_pdf.should_close_file)
|
|
|
|
# make a PDF file
|
|
pdf_filename = self.helper_save_as_pdf("RGB")
|
|
|
|
# open the PDF file
|
|
with PdfParser.PdfParser(filename=pdf_filename) as hopper_pdf:
|
|
self.assertEqual(len(hopper_pdf.pages), 1)
|
|
self.assertTrue(hopper_pdf.should_close_buf)
|
|
self.assertTrue(hopper_pdf.should_close_file)
|
|
|
|
# read a PDF file from a buffer with a non-zero offset
|
|
with open(pdf_filename, "rb") as f:
|
|
content = b"xyzzy" + f.read()
|
|
with PdfParser.PdfParser(buf=content, start_offset=5) as hopper_pdf:
|
|
self.assertEqual(len(hopper_pdf.pages), 1)
|
|
self.assertFalse(hopper_pdf.should_close_buf)
|
|
self.assertFalse(hopper_pdf.should_close_file)
|
|
|
|
# read a PDF file from an already open file
|
|
with open(pdf_filename, "rb") as f:
|
|
with PdfParser.PdfParser(f=f) as hopper_pdf:
|
|
self.assertEqual(len(hopper_pdf.pages), 1)
|
|
self.assertTrue(hopper_pdf.should_close_buf)
|
|
self.assertFalse(hopper_pdf.should_close_file)
|
|
|
|
def test_pdf_append_fails_on_nonexistent_file(self):
|
|
im = hopper("RGB")
|
|
temp_dir = tempfile.mkdtemp()
|
|
try:
|
|
self.assertRaises(IOError,
|
|
im.save,
|
|
os.path.join(temp_dir, "nonexistent.pdf"),
|
|
append=True)
|
|
finally:
|
|
os.rmdir(temp_dir)
|
|
|
|
def check_pdf_pages_consistency(self, pdf):
|
|
pages_info = pdf.read_indirect(pdf.pages_ref)
|
|
self.assertNotIn(b"Parent", pages_info)
|
|
self.assertIn(b"Kids", pages_info)
|
|
kids_not_used = pages_info[b"Kids"]
|
|
for page_ref in pdf.pages:
|
|
while True:
|
|
if page_ref in kids_not_used:
|
|
kids_not_used.remove(page_ref)
|
|
page_info = pdf.read_indirect(page_ref)
|
|
self.assertIn(b"Parent", page_info)
|
|
page_ref = page_info[b"Parent"]
|
|
if page_ref == pdf.pages_ref:
|
|
break
|
|
self.assertEqual(pdf.pages_ref, page_info[b"Parent"])
|
|
self.assertEqual(kids_not_used, [])
|
|
|
|
def test_pdf_append(self):
|
|
# make a PDF file
|
|
pdf_filename = self.helper_save_as_pdf("RGB", producer="PdfParser")
|
|
|
|
# open it, check pages and info
|
|
with PdfParser.PdfParser(pdf_filename, mode="r+b") as pdf:
|
|
self.assertEqual(len(pdf.pages), 1)
|
|
self.assertEqual(len(pdf.info), 4)
|
|
self.assertEqual(pdf.info.Title, os.path.splitext(
|
|
os.path.basename(pdf_filename)
|
|
)[0])
|
|
self.assertEqual(pdf.info.Producer, "PdfParser")
|
|
self.assertIn(b"CreationDate", pdf.info)
|
|
self.assertIn(b"ModDate", pdf.info)
|
|
self.check_pdf_pages_consistency(pdf)
|
|
|
|
# append some info
|
|
pdf.info.Title = "abc"
|
|
pdf.info.Author = "def"
|
|
pdf.info.Subject = u"ghi\uABCD"
|
|
pdf.info.Keywords = "qw)e\\r(ty"
|
|
pdf.info.Creator = "hopper()"
|
|
pdf.start_writing()
|
|
pdf.write_xref_and_trailer()
|
|
|
|
# open it again, check pages and info again
|
|
with PdfParser.PdfParser(pdf_filename) as pdf:
|
|
self.assertEqual(len(pdf.pages), 1)
|
|
self.assertEqual(len(pdf.info), 8)
|
|
self.assertEqual(pdf.info.Title, "abc")
|
|
self.assertIn(b"CreationDate", pdf.info)
|
|
self.assertIn(b"ModDate", pdf.info)
|
|
self.check_pdf_pages_consistency(pdf)
|
|
|
|
# append two images
|
|
mode_CMYK = hopper("CMYK")
|
|
mode_P = hopper("P")
|
|
mode_CMYK.save(pdf_filename,
|
|
append=True, save_all=True, append_images=[mode_P])
|
|
|
|
# open the PDF again, check pages and info again
|
|
with PdfParser.PdfParser(pdf_filename) as pdf:
|
|
self.assertEqual(len(pdf.pages), 3)
|
|
self.assertEqual(len(pdf.info), 8)
|
|
self.assertEqual(PdfParser.decode_text(pdf.info[b"Title"]), "abc")
|
|
self.assertEqual(pdf.info.Title, "abc")
|
|
self.assertEqual(pdf.info.Producer, "PdfParser")
|
|
self.assertEqual(pdf.info.Keywords, "qw)e\\r(ty")
|
|
self.assertEqual(pdf.info.Subject, u"ghi\uABCD")
|
|
self.assertIn(b"CreationDate", pdf.info)
|
|
self.assertIn(b"ModDate", pdf.info)
|
|
self.check_pdf_pages_consistency(pdf)
|
|
|
|
def test_pdf_info(self):
|
|
# make a PDF file
|
|
pdf_filename = self.helper_save_as_pdf(
|
|
"RGB", title="title", author="author", subject="subject",
|
|
keywords="keywords", creator="creator", producer="producer",
|
|
creationDate=time.strptime("2000", "%Y"),
|
|
modDate=time.strptime("2001", "%Y"))
|
|
|
|
# open it, check pages and info
|
|
with PdfParser.PdfParser(pdf_filename) as pdf:
|
|
self.assertEqual(len(pdf.info), 8)
|
|
self.assertEqual(pdf.info.Title, "title")
|
|
self.assertEqual(pdf.info.Author, "author")
|
|
self.assertEqual(pdf.info.Subject, "subject")
|
|
self.assertEqual(pdf.info.Keywords, "keywords")
|
|
self.assertEqual(pdf.info.Creator, "creator")
|
|
self.assertEqual(pdf.info.Producer, "producer")
|
|
self.assertEqual(pdf.info.CreationDate,
|
|
time.strptime("2000", "%Y"))
|
|
self.assertEqual(pdf.info.ModDate, time.strptime("2001", "%Y"))
|
|
self.check_pdf_pages_consistency(pdf)
|
|
|
|
def test_pdf_append_to_bytesio(self):
|
|
im = hopper("RGB")
|
|
f = io.BytesIO()
|
|
im.save(f, format="PDF")
|
|
initial_size = len(f.getvalue())
|
|
self.assertGreater(initial_size, 0)
|
|
im = hopper("P")
|
|
f = io.BytesIO(f.getvalue())
|
|
im.save(f, format="PDF", append=True)
|
|
self.assertGreater(len(f.getvalue()), initial_size)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|