Method checkKeyExists

cachelib/allocator/nvmcache/tests/NvmTestBase.cpp:56–58

NvmCacheTest::~NvmCacheTest() { util::removePath(cacheDir_); }

bool NvmCacheTest::checkKeyExists(folly::StringPiece key, bool ramOnly) {
  return ramOnly ? cache_->peek(key) != nullptr : fetch(key, false) != nullptr;
}

WriteHandle NvmCacheTest::fetch(folly::StringPiece key, bool ramOnly) {
  auto hdl = ramOnly ? cache_->findFastImpl(key, AccessMode::kRead)