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https://github.com/python-pillow/Pillow.git
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d50445ff30
Similar to the recent adoption of Black. isort is a Python utility to sort imports alphabetically and automatically separate into sections. By using isort, contributors can quickly and automatically conform to the projects style without thinking. Just let the tool do it. Uses the configuration recommended by the Black to avoid conflicts of style. Rewrite TestImageQt.test_deprecated to no rely on import order.
141 lines
6.4 KiB
Python
141 lines
6.4 KiB
Python
import time
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from PIL.PdfParser import (
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IndirectObjectDef,
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IndirectReference,
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PdfBinary,
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PdfDict,
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PdfFormatError,
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PdfName,
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PdfParser,
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PdfStream,
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decode_text,
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encode_text,
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pdf_repr,
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)
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from .helper import PillowTestCase
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class TestPdfParser(PillowTestCase):
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def test_text_encode_decode(self):
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self.assertEqual(encode_text("abc"), b"\xFE\xFF\x00a\x00b\x00c")
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self.assertEqual(decode_text(b"\xFE\xFF\x00a\x00b\x00c"), "abc")
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self.assertEqual(decode_text(b"abc"), "abc")
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self.assertEqual(decode_text(b"\x1B a \x1C"), u"\u02D9 a \u02DD")
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def test_indirect_refs(self):
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self.assertEqual(IndirectReference(1, 2), IndirectReference(1, 2))
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self.assertNotEqual(IndirectReference(1, 2), IndirectReference(1, 3))
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self.assertNotEqual(IndirectReference(1, 2), IndirectObjectDef(1, 2))
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self.assertNotEqual(IndirectReference(1, 2), (1, 2))
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self.assertEqual(IndirectObjectDef(1, 2), IndirectObjectDef(1, 2))
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self.assertNotEqual(IndirectObjectDef(1, 2), IndirectObjectDef(1, 3))
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self.assertNotEqual(IndirectObjectDef(1, 2), IndirectReference(1, 2))
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self.assertNotEqual(IndirectObjectDef(1, 2), (1, 2))
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def test_parsing(self):
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self.assertEqual(PdfParser.interpret_name(b"Name#23Hash"), b"Name#Hash")
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self.assertEqual(
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PdfParser.interpret_name(b"Name#23Hash", as_text=True), "Name#Hash"
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)
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self.assertEqual(
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PdfParser.get_value(b"1 2 R ", 0), (IndirectReference(1, 2), 5)
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)
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self.assertEqual(PdfParser.get_value(b"true[", 0), (True, 4))
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self.assertEqual(PdfParser.get_value(b"false%", 0), (False, 5))
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self.assertEqual(PdfParser.get_value(b"null<", 0), (None, 4))
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self.assertEqual(PdfParser.get_value(b"%cmt\n %cmt\n 123\n", 0), (123, 15))
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self.assertEqual(PdfParser.get_value(b"<901FA3>", 0), (b"\x90\x1F\xA3", 8))
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self.assertEqual(
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PdfParser.get_value(b"asd < 9 0 1 f A > qwe", 3), (b"\x90\x1F\xA0", 17)
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)
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self.assertEqual(PdfParser.get_value(b"(asd)", 0), (b"asd", 5))
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self.assertEqual(
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PdfParser.get_value(b"(asd(qwe)zxc)zzz(aaa)", 0), (b"asd(qwe)zxc", 13)
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)
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self.assertEqual(
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PdfParser.get_value(b"(Two \\\nwords.)", 0), (b"Two words.", 14)
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)
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self.assertEqual(PdfParser.get_value(b"(Two\nlines.)", 0), (b"Two\nlines.", 12))
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self.assertEqual(
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PdfParser.get_value(b"(Two\r\nlines.)", 0), (b"Two\nlines.", 13)
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)
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self.assertEqual(
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PdfParser.get_value(b"(Two\\nlines.)", 0), (b"Two\nlines.", 13)
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)
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self.assertEqual(PdfParser.get_value(b"(One\\(paren).", 0), (b"One(paren", 12))
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self.assertEqual(PdfParser.get_value(b"(One\\)paren).", 0), (b"One)paren", 12))
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self.assertEqual(PdfParser.get_value(b"(\\0053)", 0), (b"\x053", 7))
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self.assertEqual(PdfParser.get_value(b"(\\053)", 0), (b"\x2B", 6))
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self.assertEqual(PdfParser.get_value(b"(\\53)", 0), (b"\x2B", 5))
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self.assertEqual(PdfParser.get_value(b"(\\53a)", 0), (b"\x2Ba", 6))
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self.assertEqual(PdfParser.get_value(b"(\\1111)", 0), (b"\x491", 7))
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self.assertEqual(PdfParser.get_value(b" 123 (", 0), (123, 4))
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self.assertAlmostEqual(PdfParser.get_value(b" 123.4 %", 0)[0], 123.4)
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self.assertEqual(PdfParser.get_value(b" 123.4 %", 0)[1], 6)
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self.assertRaises(PdfFormatError, PdfParser.get_value, b"]", 0)
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d = PdfParser.get_value(b"<</Name (value) /N /V>>", 0)[0]
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self.assertIsInstance(d, PdfDict)
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self.assertEqual(len(d), 2)
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self.assertEqual(d.Name, "value")
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self.assertEqual(d[b"Name"], b"value")
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self.assertEqual(d.N, PdfName("V"))
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a = PdfParser.get_value(b"[/Name (value) /N /V]", 0)[0]
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self.assertIsInstance(a, list)
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self.assertEqual(len(a), 4)
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self.assertEqual(a[0], PdfName("Name"))
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s = PdfParser.get_value(
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b"<</Name (value) /Length 5>>\nstream\nabcde\nendstream<<...", 0
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)[0]
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self.assertIsInstance(s, PdfStream)
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self.assertEqual(s.dictionary.Name, "value")
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self.assertEqual(s.decode(), b"abcde")
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for name in ["CreationDate", "ModDate"]:
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for date, value in {
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b"20180729214124": "20180729214124",
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b"D:20180729214124": "20180729214124",
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b"D:2018072921": "20180729210000",
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b"D:20180729214124Z": "20180729214124",
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b"D:20180729214124+08'00'": "20180729134124",
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b"D:20180729214124-05'00'": "20180730024124",
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}.items():
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d = PdfParser.get_value(
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b"<</" + name.encode() + b" (" + date + b")>>", 0
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)[0]
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self.assertEqual(time.strftime("%Y%m%d%H%M%S", getattr(d, name)), value)
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def test_pdf_repr(self):
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self.assertEqual(bytes(IndirectReference(1, 2)), b"1 2 R")
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self.assertEqual(bytes(IndirectObjectDef(*IndirectReference(1, 2))), b"1 2 obj")
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self.assertEqual(bytes(PdfName(b"Name#Hash")), b"/Name#23Hash")
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self.assertEqual(bytes(PdfName("Name#Hash")), b"/Name#23Hash")
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self.assertEqual(
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bytes(PdfDict({b"Name": IndirectReference(1, 2)})), b"<<\n/Name 1 2 R\n>>"
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)
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self.assertEqual(
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bytes(PdfDict({"Name": IndirectReference(1, 2)})), b"<<\n/Name 1 2 R\n>>"
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)
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self.assertEqual(pdf_repr(IndirectReference(1, 2)), b"1 2 R")
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self.assertEqual(
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pdf_repr(IndirectObjectDef(*IndirectReference(1, 2))), b"1 2 obj"
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)
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self.assertEqual(pdf_repr(PdfName(b"Name#Hash")), b"/Name#23Hash")
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self.assertEqual(pdf_repr(PdfName("Name#Hash")), b"/Name#23Hash")
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self.assertEqual(
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pdf_repr(PdfDict({b"Name": IndirectReference(1, 2)})),
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b"<<\n/Name 1 2 R\n>>",
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)
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self.assertEqual(
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pdf_repr(PdfDict({"Name": IndirectReference(1, 2)})), b"<<\n/Name 1 2 R\n>>"
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)
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self.assertEqual(pdf_repr(123), b"123")
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self.assertEqual(pdf_repr(True), b"true")
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self.assertEqual(pdf_repr(False), b"false")
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self.assertEqual(pdf_repr(None), b"null")
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self.assertEqual(pdf_repr(b"a)/b\\(c"), br"(a\)/b\\\(c)")
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self.assertEqual(
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pdf_repr([123, True, {"a": PdfName(b"b")}]), b"[ 123 true <<\n/a /b\n>> ]"
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)
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self.assertEqual(pdf_repr(PdfBinary(b"\x90\x1F\xA0")), b"<901FA0>")
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