from helper import unittest, PillowTestCase

from PIL.pdfParser import *


class TestPdfParser(PillowTestCase):

    def test_text_encode_decode(self):
        self.assertEqual(encode_text("abc"), b"\xFE\xFF\x00a\x00b\x00c")
        self.assertEqual(decode_text(b"\xFE\xFF\x00a\x00b\x00c"), "abc")
        self.assertEqual(decode_text(b"abc"), "abc")
        self.assertEqual(decode_text(b"\x1B a \x1C"), u"\u02D9 a \u02DD")

    def test_indirect_refs(self):
        self.assertEqual(IndirectReference(1,2), IndirectReference(1,2))
        self.assertNotEqual(IndirectReference(1,2), IndirectReference(1,3))
        self.assertNotEqual(IndirectReference(1,2), IndirectObjectDef(1,2))
        self.assertNotEqual(IndirectReference(1,2), (1,2))
        self.assertEqual(IndirectObjectDef(1,2), IndirectObjectDef(1,2))
        self.assertNotEqual(IndirectObjectDef(1,2), IndirectObjectDef(1,3))
        self.assertNotEqual(IndirectObjectDef(1,2), IndirectReference(1,2))
        self.assertNotEqual(IndirectObjectDef(1,2), (1,2))

    def test_parsing(self):
        self.assertEqual(PdfParser.interpret_name(b"Name#23Hash"), b"Name#Hash")
        self.assertEqual(PdfParser.interpret_name(b"Name#23Hash", as_text=True), "Name#Hash")
        self.assertEqual(PdfParser.get_value(b"1 2 R ", 0), (IndirectReference(1, 2), 5))
        self.assertEqual(PdfParser.get_value(b"true[", 0), (True, 4))
        self.assertEqual(PdfParser.get_value(b"false%", 0), (False, 5))
        self.assertEqual(PdfParser.get_value(b"null<", 0), (None, 4))
        self.assertEqual(PdfParser.get_value(b"%cmt\n %cmt\n 123\n", 0), (123, 15))
        self.assertEqual(PdfParser.get_value(b"<901FA3>", 0), (b"\x90\x1F\xA3", 8))
        self.assertEqual(PdfParser.get_value(b"asd < 9 0 1 f A > qwe", 3), (b"\x90\x1F\xA0", 17))
        self.assertEqual(PdfParser.get_value(b"(asd)", 0), (b"asd", 5))
        self.assertEqual(PdfParser.get_value(b"(asd(qwe)zxc)zzz(aaa)", 0), (b"asd(qwe)zxc", 13))
        self.assertEqual(PdfParser.get_value(b"(Two \\\nwords.)", 0), (b"Two words.", 14))
        self.assertEqual(PdfParser.get_value(b"(Two\nlines.)", 0), (b"Two\nlines.", 12))
        self.assertEqual(PdfParser.get_value(b"(Two\r\nlines.)", 0), (b"Two\nlines.", 13))
        self.assertEqual(PdfParser.get_value(b"(Two\\nlines.)", 0), (b"Two\nlines.", 13))
        self.assertEqual(PdfParser.get_value(b"(One\\(paren).", 0), (b"One(paren", 12))
        self.assertEqual(PdfParser.get_value(b"(One\\)paren).", 0), (b"One)paren", 12))
        self.assertEqual(PdfParser.get_value(b"(\\0053)", 0), (b"\x053", 7))
        self.assertEqual(PdfParser.get_value(b"(\\053)", 0), (b"\x2B", 6))
        self.assertEqual(PdfParser.get_value(b"(\\53)", 0), (b"\x2B", 5))
        self.assertEqual(PdfParser.get_value(b"(\\53a)", 0), (b"\x2Ba", 6))
        self.assertEqual(PdfParser.get_value(b"(\\1111)", 0), (b"\x491", 7))

    def test_pdf_repr(self):
        self.assertEqual(bytes(IndirectReference(1,2)), b"1 2 R")
        self.assertEqual(bytes(IndirectObjectDef(*IndirectReference(1,2))), b"1 2 obj")
        self.assertEqual(bytes(PdfName(b"Name#Hash")), b"/Name#23Hash")
        self.assertEqual(bytes(PdfName("Name#Hash")), b"/Name#23Hash")
        self.assertEqual(bytes(PdfDict({b"Name": IndirectReference(1,2)})), b"<<\n/Name 1 2 R\n>>")
        self.assertEqual(bytes(PdfDict({"Name": IndirectReference(1,2)})), b"<<\n/Name 1 2 R\n>>")
        self.assertEqual(pdf_repr(IndirectReference(1,2)), b"1 2 R")
        self.assertEqual(pdf_repr(IndirectObjectDef(*IndirectReference(1,2))), b"1 2 obj")
        self.assertEqual(pdf_repr(PdfName(b"Name#Hash")), b"/Name#23Hash")
        self.assertEqual(pdf_repr(PdfName("Name#Hash")), b"/Name#23Hash")
        self.assertEqual(pdf_repr(PdfDict({b"Name": IndirectReference(1,2)})), b"<<\n/Name 1 2 R\n>>")
        self.assertEqual(pdf_repr(PdfDict({"Name": IndirectReference(1,2)})), b"<<\n/Name 1 2 R\n>>")
        self.assertEqual(pdf_repr(123), b"123")
        self.assertEqual(pdf_repr(True), b"true")
        self.assertEqual(pdf_repr(False), b"false")
        self.assertEqual(pdf_repr(None), b"null")
        self.assertEqual(pdf_repr(b"a)/b\\(c"), br"(a\)/b\\\(c)")
        self.assertEqual(pdf_repr([123, True, {"a": PdfName(b"b")}]), b"[ 123 true <<\n/a /b\n>> ]")
        self.assertEqual(pdf_repr(PdfBinary(b"\x90\x1F\xA0")), b"<901FA0>")


if __name__ == '__main__':
    unittest.main()