folly::io::test::CompressionVarintTest Class Reference

Inheritance diagram for folly::io::test::CompressionVarintTest:

Protected Member Functions
void	SetUp () override
void	runSimpleTest (const DataHolder &dh)

Protected Attributes
uint64_t	uncompressedLength_
std::unique_ptr< Codec >	codec_

Detailed Description

Definition at line 310 of file CompressionTest.cpp.

Member Function Documentation

void folly::io::test::CompressionVarintTest::runSimpleTest ( const DataHolder &  dh )

protected

Definition at line 332 of file CompressionTest.cpp.

References codec_, folly::IOBuf::copyBuffer(), folly::io::test::DataHolder::data(), EXPECT_EQ, folly::io::test::DataHolder::hash(), folly::io::test::hashIOBuf(), max, min, folly::gen::move, folly::io::test::oneBasedMsbPos(), folly::Random::rand64(), uint64_t, and folly::IOBuf::wrapBuffer().

                                                              {
  auto original = IOBuf::wrapBuffer(dh.data(uncompressedLength_));
  auto compressed = codec_->compress(original.get());
  auto breakPoint =
      1UL +
      Random::rand64(
          std::max(uint64_t(9), oneBasedMsbPos(uncompressedLength_)) / 9UL);
  auto tinyBuf = IOBuf::copyBuffer(
      compressed->data(), std::min(compressed->length(), breakPoint));
  compressed->trimStart(breakPoint);
  tinyBuf->prependChain(std::move(compressed));
  compressed = std::move(tinyBuf);

  auto uncompressed = codec_->uncompress(compressed.get());

  EXPECT_EQ(uncompressedLength_, uncompressed->computeChainDataLength());
  EXPECT_EQ(dh.hash(uncompressedLength_), hashIOBuf(uncompressed.get()));
}

void folly::io::test::CompressionVarintTest::SetUp ( )

inlineoverrideprotected

Definition at line 313 of file CompressionTest.cpp.

References codec_, folly::io::getCodec(), and uint64_t.

                        {
    auto tup = GetParam();
    uncompressedLength_ = uint64_t(1) << std::get<0>(tup);
    codec_ = getCodec(std::get<1>(tup));
  }

Member Data Documentation

std::unique_ptr<Codec> folly::io::test::CompressionVarintTest::codec_

protected

Definition at line 322 of file CompressionTest.cpp.

uint64_t folly::io::test::CompressionVarintTest::uncompressedLength_

protected

Definition at line 321 of file CompressionTest.cpp.

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The documentation for this class was generated from the following file:

• proxygen/folly/folly/compression/test/CompressionTest.cpp