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b998473673
Fixes #932 Also fixes #966 Decided not to add Summary type because it has the same functionality as Histogram but makes more calculations on client side (Clio side). See https://prometheus.io/docs/practices/histograms for detailed comparison.
58 lines
2.0 KiB
C++
58 lines
2.0 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of clio: https://github.com/XRPLF/clio
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Copyright (c) 2023, the clio developers.
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Permission to use, copy, modify, and distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <util/prometheus/OStream.h>
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#include <boost/iostreams/filter/gzip.hpp>
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#include <gtest/gtest.h>
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using namespace util::prometheus;
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TEST(OStreamTests, empty)
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{
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OStream stream{false};
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EXPECT_EQ(std::move(stream).data(), "");
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}
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TEST(OStreamTests, string)
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{
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OStream stream{false};
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stream << "hello";
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EXPECT_EQ(std::move(stream).data(), "hello");
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}
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TEST(OStreamTests, compression)
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{
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OStream stream{true};
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std::string const str = "helloooooooooooooooooooooooooooooooooo";
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stream << str;
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auto const compressed = std::move(stream).data();
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EXPECT_LT(compressed.size(), str.size());
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std::string const decompressed = [&compressed]() {
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std::string result;
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boost::iostreams::filtering_istream stream;
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stream.push(boost::iostreams::gzip_decompressor{});
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stream.push(boost::iostreams::array_source{compressed.data(), compressed.size()});
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stream >> result;
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return result;
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}();
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EXPECT_EQ(decompressed, str);
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}
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