def testFindEqclassesCircularReferences(self):
pdf = pdfsizeopt.PdfData()
# The Rs are needed in the trailer, otherwise objects would be discarded.
pdf.trailer = pdfsizeopt.PdfObj(
'0 0 obj<<4 0 R 5 0 R 9 0 R 10 0 R>>endobj')
pdf.objs[4] = pdfsizeopt.PdfObj(
'0 0 obj<</Parent 1 0 R/Type/Pages/Kids[9 0 R]/Count 1>>endobj')
pdf.objs[5] = pdfsizeopt.PdfObj(
'0 0 obj<</Parent 1 0 R/Type/Pages/Kids[10 0 R]/Count 1>>endobj')
pdf.objs[9] = pdfsizeopt.PdfObj(
'0 0 obj<</Type/Page/MediaBox[0 0 419 534]/CropBox[0 0 419 534]'
'/Parent 4 0 R/Resources<</XObject<</S 2 0 R>>/ProcSet[/PDF/ImageB]>>'
'/Contents 3 0 R>>endobj')
pdf.objs[10] = pdfsizeopt.PdfObj(
'10 0 obj<</Type/Page/MediaBox[0 0 419 534]/CropBox[0 0 419 534]'
'/Parent 5 0 R/Resources<</XObject<</S 2 0 R>>/ProcSet[/PDF/ImageB]>>'
'/Contents 3 0 R>>endobj')
pdf.objs['trailer'] = pdf.trailer
new_objs = pdfsizeopt.PdfData.FindEqclasses(
pdf.objs, do_remove_unused=True, do_renumber=True)
del pdf.objs['trailer']
for obj_num in new_objs:
new_objs[obj_num] = (new_objs[obj_num].head, new_objs[obj_num].stream)
self.assertEqual(
{1: ('<</Parent null/Type/Pages/Kids[2 0 R]/Count 1>>', None),
2: ('<</Type/Page/MediaBox[0 0 419 534]/CropBox[0 0 419 534]'
'/Parent 1 0 R/Resources<</XObject<</S null>>'
'/ProcSet[/PDF/ImageB]>>/Contents null>>', None),
'trailer': ('<<1 0 R 1 0 R 2 0 R 2 0 R>>', None)}, new_objs)
def testFindEqclassesAllEquivalentAndUndefined(self):
pdf = pdfsizeopt.PdfData()
pdf.trailer = pdfsizeopt.PdfObj('0 0 obj<<>>endobj')
pdf.objs[1] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 2 0 R /U 6 0 R>>endobj')
pdf.objs[2] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 1 0 R /U 7 0 R>>endobj')
pdf.objs[3] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 4 0 R /U 8 0 R>>endobj')
pdf.objs[4] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 3 0 R /U 9 0 R>>endobj')
new_objs = pdfsizeopt.PdfData.FindEqclasses(pdf.objs)
for obj_num in new_objs:
new_objs[obj_num] = (new_objs[obj_num].head, new_objs[obj_num].stream)
self.assertEqual({1: ('<</S(q)/P 1 0 R/U null>>', None)}, new_objs)
def testFindEqclassesAllEquivalent(self):
pdf = pdfsizeopt.PdfData()
pdf.trailer = pdfsizeopt.PdfObj('0 0 obj<<>>endobj')
pdf.objs[5] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 6 0 R>>endobj')
pdf.objs[6] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 5 0 R >>endobj')
pdf.objs[3] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 4 0 R >>endobj')
pdf.objs[4] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 3 0 R >>endobj')
new_objs = pdfsizeopt.PdfData.FindEqclasses(pdf.objs)
for obj_num in new_objs:
new_objs[obj_num] = (new_objs[obj_num].head, new_objs[obj_num].stream)
self.assertEqual({3: ('<</S(q)/P 3 0 R>>', None)}, new_objs)
def testFindEqclassesString(self):
pdf = pdfsizeopt.PdfData()
pdf.trailer = pdfsizeopt.PdfObj(
'0 0 obj<</A[3 0 R]>>endobj')
pdf.objs[3] = pdfsizeopt.PdfObj('0 0 obj<</A()/B<>/C(:)/D<3a3A4>>>endobj')
pdf.objs['trailer'] = pdf.trailer
new_objs = pdfsizeopt.PdfData.FindEqclasses(
pdf.objs, do_remove_unused=True, do_renumber=True)
for obj_num in new_objs:
new_objs[obj_num] = (new_objs[obj_num].head, new_objs[obj_num].stream)
self.assertEqual(
{'trailer': ('<</A[1 0 R]>>', None),
1: ('<</A()/B()/C(:)/D(::@)>>', None)}, new_objs)
def testFindEqclassesTwoGroupsByOrder(self):
pdf = pdfsizeopt.PdfData()
pdf.trailer = pdfsizeopt.PdfObj('0 0 obj<<>>endobj')
pdf.objs[1] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 2 0 R>>endobj')
pdf.objs[2] = pdfsizeopt.PdfObj('0 0 obj<</P 1 0 R/S(q)>>endobj')
pdf.objs[3] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 4 0 R>>endobj')
pdf.objs[4] = pdfsizeopt.PdfObj('0 0 obj<</P 3 0 R /S<71>>>endobj')
new_objs = pdfsizeopt.PdfData.FindEqclasses(pdf.objs)
for obj_num in new_objs:
new_objs[obj_num] = (new_objs[obj_num].head, new_objs[obj_num].stream)
self.assertEqual(
{1: ('<</S(q)/P 2 0 R>>', None),
2: ('<</P 1 0 R/S(q)>>', None)}, new_objs)
def testFindEqclassesAllDifferentBecauseOfStream(self):
pdf = pdfsizeopt.PdfData()
pdf.trailer = pdfsizeopt.PdfObj('0 0 obj<<>>endobj')
pdf.objs[1] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 2 0 R>>endobj')
pdf.objs[2] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 1 0 R >>endobj')
pdf.objs[2].stream = 'foo'
pdf.objs[3] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 4 0 R >>endobj')
pdf.objs[4] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 3 0 R >>endobj')
pdf.objs[4].stream = 'fox'
new_objs = pdfsizeopt.PdfData.FindEqclasses(pdf.objs)
for obj_num in new_objs:
new_objs[obj_num] = (new_objs[obj_num].head, new_objs[obj_num].stream)
self.assertEqual(
{1: ('<</S(q)/P 2 0 R>>', None), 2: ('<</S(q)/P 1 0 R>>', 'foo'),
3: ('<</S(q)/P 4 0 R>>', None), 4: ('<</S(q)/P 3 0 R>>', 'fox')},
new_objs)
def testFindEqclassesTwoGroupsWithTrailerRenumber(self):
pdf = pdfsizeopt.PdfData()
pdf.trailer = pdfsizeopt.PdfObj(
'0 0 obj<</A[3 0 R 4 0 R 5 0 R 6 0 R 4 0 R]>>endobj')
pdf.objs[5] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 6 0 R>>endobj')
pdf.objs[6] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/Q 5 0 R >>endobj')
pdf.objs[3] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 4 0 R >>endobj')
pdf.objs[4] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/Q 3 0 R >>endobj')
pdf.objs[10] = pdfsizeopt.PdfObj('0 0 obj[11 0 R]endobj')
pdf.objs[11] = pdfsizeopt.PdfObj('0 0 obj[10 0 R]endobj')
pdf.objs[12] = pdfsizeopt.PdfObj('0 0 obj[11 0 R]endobj')
pdf.objs[12].stream = 'blah'
pdf.objs['trailer'] = pdf.trailer
new_objs = pdfsizeopt.PdfData.FindEqclasses(
pdf.objs, do_remove_unused=True, do_renumber=True)
del pdf.objs['trailer']
for obj_num in new_objs:
new_objs[obj_num] = (new_objs[obj_num].head, new_objs[obj_num].stream)
self.assertEqual(
{'trailer': ('<</A[2 0 R 1 0 R 2 0 R 1 0 R 1 0 R]>>', None),
2: ('<</S(q)/P 1 0 R>>', None),
1: ('<</S(q)/Q 2 0 R>>', None)}, new_objs)
def testFindEqclassesTwoGroupsWithTrailer(self):
pdf = pdfsizeopt.PdfData()
pdf.trailer = pdfsizeopt.PdfObj(
'0 0 obj<</A[3 0 R 4 0 R 5 0 R 6 0 R 3 0 R]>>endobj')
pdf.objs[5] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 6 0 R>>endobj')
pdf.objs[6] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/Q 5 0 R >>endobj')
pdf.objs[3] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/P 4 0 R >>endobj')
pdf.objs[4] = pdfsizeopt.PdfObj('0 0 obj<</S(q)/Q 3 0 R >>endobj')
pdf.objs[10] = pdfsizeopt.PdfObj('0 0 obj[11 0 R]endobj')
pdf.objs[11] = pdfsizeopt.PdfObj('0 0 obj[10 0 R]endobj')
pdf.objs[12] = pdfsizeopt.PdfObj('0 0 obj[11 0 R]endobj')
pdf.objs[12].stream = 'blah'
pdf.objs['trailer'] = pdf.trailer
new_objs = pdfsizeopt.PdfData.FindEqclasses(pdf.objs)
del pdf.objs['trailer']
for obj_num in new_objs:
new_objs[obj_num] = (new_objs[obj_num].head, new_objs[obj_num].stream)
self.assertEqual(
{'trailer': ('<</A[3 0 R 4 0 R 3 0 R 4 0 R 3 0 R]>>', None),
10: ('[10 0 R]', None),
12: ('[10 0 R]', 'blah'),
3: ('<</S(q)/P 4 0 R>>', None),
4: ('<</S(q)/Q 3 0 R>>', None)}, new_objs)