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qpdf/libtests/buffer.cc
Jay Berkenbilt 79f6b4823b Convert remaining public classes to use Members pattern
Have classes contain only a single private member of type
PointerHolder<Members>. This makes it safe to change the structure of
the Members class without breaking binary compatibility. Many of the
classes already follow this pattern quite successfully. This brings in
the rest of the class that are part of the public API.
2019-06-22 10:13:27 -04:00

111 lines
2.8 KiB
C++

#include <qpdf/Pl_Buffer.hh>
#include <qpdf/Pl_Count.hh>
#include <qpdf/Pl_Discard.hh>
#include <qpdf/QUtil.hh>
#include <stdlib.h>
#include <stdexcept>
#include <iostream>
#include <cassert>
static unsigned char* uc(char const* s)
{
return QUtil::unsigned_char_pointer(s);
}
int main()
{
{
// Test that buffers can be copied by value.
Buffer bc1(2);
unsigned char* bc1p = bc1.getBuffer();
bc1p[0] = 'Q';
bc1p[1] = 'W';
Buffer bc2(bc1);
bc1p[0] = 'R';
unsigned char* bc2p = bc2.getBuffer();
assert(bc2p != bc1p);
assert(bc2p[0] == 'Q');
assert(bc2p[1] == 'W');
bc2 = bc1;
bc2p = bc2.getBuffer();
assert(bc2p != bc1p);
assert(bc2p[0] == 'R');
assert(bc2p[1] == 'W');
}
try
{
Pl_Discard discard;
Pl_Count count("count", &discard);
Pl_Buffer bp1("bp1", &count);
bp1.write(uc("12345"), 5);
bp1.write(uc("67890"), 5);
bp1.finish();
std::cout << "count: " << count.getCount() << std::endl;
bp1.write(uc("abcde"), 5);
bp1.write(uc("fghij"), 6);
bp1.finish();
std::cout << "count: " << count.getCount() << std::endl;
Buffer* b = bp1.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
std::cout << "data: " << b->getBuffer() << std::endl;
delete b;
bp1.write(uc("qwert"), 5);
bp1.write(uc("yuiop"), 6);
bp1.finish();
std::cout << "count: " << count.getCount() << std::endl;
b = bp1.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
std::cout << "data: " << b->getBuffer() << std::endl;
delete b;
Pl_Buffer bp2("bp2");
bp2.write(uc("moo"), 3);
bp2.write(uc("quack"), 6);
try
{
delete bp2.getBuffer();
}
catch (std::exception& e)
{
std::cout << e.what() << std::endl;
}
bp2.finish();
b = bp2.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
std::cout << "data: " << b->getBuffer() << std::endl;
delete b;
unsigned char lbuf[10];
Buffer b1(lbuf, 10);
if (! ((b1.getBuffer() == lbuf) &&
(b1.getSize() == 10)))
{
throw std::logic_error("hand-created buffer is not as expected");
}
Pl_Buffer bp3("bp3");
b = bp3.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
delete b;
// Should be able to call getBuffer again and get an empty buffer
b = bp3.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
delete b;
// Also can write 0 and do it.
bp3.write(uc(""), 0);
bp3.finish();
b = bp3.getBuffer();
std::cout << "size: " << b->getSize() << std::endl;
delete b;
}
catch (std::exception& e)
{
std::cout << "unexpected exception: " << e.what() << std::endl;
exit(2);
}
std::cout << "done" << std::endl;
return 0;
}