2
1
mirror of https://github.com/qpdf/qpdf.git synced 2024-11-16 01:27:07 +00:00

Add testing for page APIs

This commit is contained in:
Jay Berkenbilt 2012-06-21 12:21:34 -04:00
parent eb802cfa8c
commit 3844aedd93
9 changed files with 1124 additions and 11 deletions

View File

@ -126,18 +126,23 @@ QPDF::insertPageobjToPage(QPDFObjectHandle const& obj, int pos,
bool check_duplicate) bool check_duplicate)
{ {
ObjGen og(obj.getObjectID(), obj.getGeneration()); ObjGen og(obj.getObjectID(), obj.getGeneration());
bool duplicate = if (check_duplicate)
(! this->pageobj_to_pages_pos.insert(std::make_pair(og, pos)).second);
if (duplicate && check_duplicate)
{ {
QTC::TC("qpdf", "QPDF duplicate page reference"); if (! this->pageobj_to_pages_pos.insert(std::make_pair(og, pos)).second)
setLastObjectDescription("page " + QUtil::int_to_string(pos) + {
" (numbered from zero)", QTC::TC("qpdf", "QPDF duplicate page reference");
og.obj, og.gen); setLastObjectDescription("page " + QUtil::int_to_string(pos) +
throw QPDFExc(qpdf_e_pages, this->file->getName(), " (numbered from zero)",
this->last_object_description, 0, og.obj, og.gen);
"duplicate page reference found;" throw QPDFExc(qpdf_e_pages, this->file->getName(),
" this would cause loss of data"); this->last_object_description, 0,
"duplicate page reference found;"
" this would cause loss of data");
}
}
else
{
this->pageobj_to_pages_pos[og] = pos;
} }
} }
@ -150,6 +155,16 @@ QPDF::insertPage(QPDFObjectHandle newpage, int pos)
flattenPagesTree(); flattenPagesTree();
newpage.assertPageObject(); newpage.assertPageObject();
if (! newpage.isIndirect())
{
QTC::TC("qpdf", "QPDF insert non-indirect page");
newpage = this->makeIndirectObject(newpage);
}
else
{
QTC::TC("qpdf", "QPDF insert indirect page");
}
QTC::TC("qpdf", "QPDF insert page", QTC::TC("qpdf", "QPDF insert page",
(pos == 0) ? 0 : // insert at beginning (pos == 0) ? 0 : // insert at beginning
(pos == ((int)this->all_pages.size())) ? 1 : // insert at end (pos == ((int)this->all_pages.size())) ? 1 : // insert at end

View File

@ -207,3 +207,5 @@ QPDF duplicate page reference 0
QPDF remove page 2 QPDF remove page 2
QPDF insert page 2 QPDF insert page 2
QPDF updateAllPagesCache 0 QPDF updateAllPagesCache 0
QPDF insert non-indirect page 0
QPDF insert indirect page 0

View File

@ -110,6 +110,28 @@ $td->runtest("new stream",
show_ntests(); show_ntests();
# ---------- # ----------
$td->notify("--- Page API Tests ---");
$n_tests += 5;
$td->runtest("basic page API",
{$td->COMMAND => "test_driver 15 page_api_1.pdf"},
{$td->STRING => "test 15 done\n", $td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "page_api_1-out.pdf"});
$td->runtest("manual page manipulation",
{$td->COMMAND => "test_driver 16 page_api_1.pdf"},
{$td->STRING => "test 16 done\n", $td->EXIT_STATUS => 0},
$td->NORMALIZE_NEWLINES);
$td->runtest("check output",
{$td->FILE => "a.pdf"},
{$td->FILE => "page_api_1-out2.pdf"});
$td->runtest("duplicate page",
{$td->COMMAND => "test_driver 17 page_api_2.pdf"},
{$td->FILE => "page_api_2.out", $td->EXIT_STATUS => 2},
$td->NORMALIZE_NEWLINES);
# ----------
$td->notify("--- Miscellaneous Tests ---"); $td->notify("--- Miscellaneous Tests ---");
$n_tests += 37; $n_tests += 37;

View File

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View File

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@ -0,0 +1 @@
page_api_2.pdf (page 1 (numbered from zero): object 4 0): duplicate page reference found; this would cause loss of data

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@ -14,6 +14,7 @@
#include <stdio.h> #include <stdio.h>
#include <string.h> #include <string.h>
#include <stdlib.h> #include <stdlib.h>
#include <assert.h>
#include <map> #include <map>
static char const* whoami = 0; static char const* whoami = 0;
@ -56,8 +57,34 @@ class Provider: public QPDFObjectHandle::StreamDataProvider
bool bad_length; bool bad_length;
}; };
static void checkPageContents(QPDFObjectHandle page,
std::string const& wanted_string)
{
PointerHolder<Buffer> b1 =
page.getKey("/Contents").getStreamData();
std::string contents = std::string((char *)(b1->getBuffer()));
if (contents.find(wanted_string) == std::string::npos)
{
std::cout << "didn't find " << wanted_string << " in "
<< contents << std::endl;
}
}
static QPDFObjectHandle createPageContents(QPDF& pdf, std::string const& text)
{
std::string contents = "BT /F1 15 Tf 72 720 Td (" + text + ") Tj ET\n";
PointerHolder<Buffer> b = new Buffer(contents.length());
unsigned char* bp = b->getBuffer();
memcpy(bp, (char*)contents.c_str(), contents.length());
return QPDFObjectHandle::newStream(&pdf, b);
}
void runtest(int n, char const* filename) void runtest(int n, char const* filename)
{ {
// Most tests here are crafted to work on specific files. Look at
// the test suite to see how the test is invoked to find the file
// that the test is supposed to operate on.
QPDF pdf; QPDF pdf;
PointerHolder<char> file_buf; PointerHolder<char> file_buf;
FILE* filep = 0; FILE* filep = 0;
@ -629,6 +656,129 @@ void runtest(int n, char const* filename)
fclose(f); fclose(f);
delete b; delete b;
} }
else if (n == 15)
{
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
// Reference to original page numbers for this test case are
// numbered from 0.
// Remove pages from various places, checking to make sure
// that our pages reference is getting updated.
assert(pages.size() == 10);
pdf.removePage(pages.back()); // original page 9
assert(pages.size() == 9);
pdf.removePage(*pages.begin()); // original page 0
assert(pages.size() == 8);
checkPageContents(pages[4], "Original page 5");
pdf.removePage(pages[4]); // original page 5
assert(pages.size() == 7);
checkPageContents(pages[4], "Original page 6");
checkPageContents(pages[0], "Original page 1");
checkPageContents(pages[6], "Original page 8");
// Insert pages
// Create some content streams.
std::vector<QPDFObjectHandle> contents;
contents.push_back(createPageContents(pdf, "New page 1"));
contents.push_back(createPageContents(pdf, "New page 0"));
contents.push_back(createPageContents(pdf, "New page 5"));
contents.push_back(createPageContents(pdf, "New page 6"));
contents.push_back(createPageContents(pdf, "New page 11"));
contents.push_back(createPageContents(pdf, "New page 12"));
// Create some page objects. Start with an existing
// dictionary and modify it. Using the results of
// getDictAsMap to create a new dictionary effectively creates
// a shallow copy.
std::map<std::string, QPDFObjectHandle> page_dict_keys =
QPDFObjectHandle(pages[0]).getDictAsMap();
std::vector<QPDFObjectHandle> new_pages;
for (std::vector<QPDFObjectHandle>::iterator iter = contents.begin();
iter != contents.end(); ++iter)
{
// We will retain indirect object references to other
// indirect objects other than page content.
page_dict_keys["/Contents"] = *iter;
QPDFObjectHandle page =
QPDFObjectHandle::newDictionary(page_dict_keys);
if (iter == contents.begin())
{
// leave direct
new_pages.push_back(page);
}
else
{
new_pages.push_back(pdf.makeIndirectObject(page));
}
}
// Now insert the pages
pdf.addPage(new_pages[0], true);
checkPageContents(pages[0], "New page 1");
pdf.addPageAt(new_pages[1], true, pages[0]);
assert(pages[0].getObjectID() == new_pages[1].getObjectID());
pdf.addPageAt(new_pages[2], true, pages[5]);
assert(pages[5].getObjectID() == new_pages[2].getObjectID());
pdf.addPageAt(new_pages[3], false, pages[5]);
assert(pages[6].getObjectID() == new_pages[3].getObjectID());
assert(pages.size() == 11);
pdf.addPage(new_pages[4], false);
assert(pages[11].getObjectID() == new_pages[4].getObjectID());
pdf.addPageAt(new_pages[5], false, pages.back());
assert(pages.size() == 13);
checkPageContents(pages[0], "New page 0");
checkPageContents(pages[1], "New page 1");
checkPageContents(pages[5], "New page 5");
checkPageContents(pages[6], "New page 6");
checkPageContents(pages[11], "New page 11");
checkPageContents(pages[12], "New page 12");
QPDFWriter w(pdf, "a.pdf");
w.setStaticID(true);
w.setStreamDataMode(qpdf_s_preserve);
w.write();
}
else if (n == 16)
{
// Insert a page manually and then update the cache.
std::vector<QPDFObjectHandle> const& all_pages = pdf.getAllPages();
QPDFObjectHandle contents = createPageContents(pdf, "New page 10");
std::map<std::string, QPDFObjectHandle> page_dict_keys =
QPDFObjectHandle(all_pages[0]).getDictAsMap();
page_dict_keys["/Contents"] = contents;
QPDFObjectHandle page =
pdf.makeIndirectObject(
QPDFObjectHandle::newDictionary(page_dict_keys));
// Insert the page manually.
QPDFObjectHandle root = pdf.getRoot();
QPDFObjectHandle pages = root.getKey("/Pages");
QPDFObjectHandle kids = pages.getKey("/Kids");
page.replaceKey("/Parent", pages);
pages.replaceKey(
"/Count",
QPDFObjectHandle::newInteger(1 + (int)all_pages.size()));
kids.appendItem(page);
assert(all_pages.size() == 10);
pdf.updateAllPagesCache();
assert(all_pages.size() == 11);
assert(all_pages.back().getObjectID() == page.getObjectID());
QPDFWriter w(pdf, "a.pdf");
w.setStaticID(true);
w.setStreamDataMode(qpdf_s_preserve);
w.write();
}
else if (n == 17)
{
// The input file to this test case is broken to exercise an
// error condition.
std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
pdf.removePage(pages[0]);
std::cout << "you can't see this" << std::endl;
}
else else
{ {
throw std::runtime_error(std::string("invalid test ") + throw std::runtime_error(std::string("invalid test ") +