24   class FakeWF : public WritableFile {  in TEST_F()  class
26     explicit FakeWF() : size_(0), last_synced_(0) {}  in TEST_F()  function in ROCKSDB_NAMESPACE::TEST_F::FakeWF
27     ~FakeWF() override {}  in TEST_F()
78   std::unique_ptr<FakeWF> wf(new FakeWF);  in TEST_F()
98   class FakeWF : public WritableFile {  in TEST_F()  class
100     explicit FakeWF(std::string* _file_data, bool _use_direct_io,  in TEST_F()  function in ROCKSDB_NAMESPACE::TEST_F::FakeWF
105     ~FakeWF() override {}  in TEST_F()
155     std::unique_ptr<FakeWF> wf(new FakeWF(&actual,  in TEST_F()
188   class FakeWF : public WritableFile {  in TEST_F()  class
190     explicit FakeWF() : use_direct_io_(false), io_error_(false) {}  in TEST_F()  function in ROCKSDB_NAMESPACE::TEST_F::FakeWF
215   std::unique_ptr<FakeWF> wf(new FakeWF());  in TEST_F()
226   static_cast<FakeWF*>(file->target())->SetIOError(true);  in TEST_F()