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