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Test zlib wrapper's handling of large data

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This commit is contained in:
Perttu Ahola
2012-07-22 20:27:55 +03:00
parent 82855a04ec
commit 38bb649582
1 changed files with 34 additions and 0 deletions
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34
src/test.cpp
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@@ -40,6 +40,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "inventory.h"
#include "util/numeric.h"
#include "util/serialize.h"
#include "noise.h" // PseudoRandom used for random data for compression
/*
Asserts that the exception occurs
@@ -415,6 +416,39 @@ struct TestCompress: public TestBase
}
}
// Test zlib wrapper with large amounts of data (larger than it's
// internal buffers)
{
infostream<<"Test: Testing zlib wrappers with a large amount "
<<"of pseudorandom data"<<std::endl;
u32 size = 50000;
infostream<<"Test: Input size of large compressZlib is "
<<size<<std::endl;
std::string data_in;
data_in.resize(size);
PseudoRandom pseudorandom(9420);
for(u32 i=0; i<size; i++)
data_in[i] = pseudorandom.range(0,255);
std::ostringstream os_compressed(std::ios::binary);
compressZlib(data_in, os_compressed);
infostream<<"Test: Output size of large compressZlib is "
<<os_compressed.str().size()<<std::endl;
std::istringstream is_compressed(os_compressed.str(), std::ios::binary);
std::ostringstream os_decompressed(std::ios::binary);
decompressZlib(is_compressed, os_decompressed);
infostream<<"Test: Output size of large decompressZlib is "
<<os_decompressed.str().size()<<std::endl;
std::string str_decompressed = os_decompressed.str();
UTEST(str_decompressed.size() == data_in.size(), "Output size not"
" equal (output: %i, input: %i)",
str_decompressed.size(), data_in.size());
for(u32 i=0; i<size && i<str_decompressed.size(); i++){
UTEST(str_decompressed[i] == data_in[i],
"index out[%i]=%i differs from in[%i]=%i",
i, str_decompressed[i], i, data_in[i]);
}
}
}
};