1 // 2 // Copyright (C) 2015 The Android Open Source Project 3 // 4 // Licensed under the Apache License, Version 2.0 (the "License"); 5 // you may not use this file except in compliance with the License. 6 // You may obtain a copy of the License at 7 // 8 // http://www.apache.org/licenses/LICENSE-2.0 9 // 10 // Unless required by applicable law or agreed to in writing, software 11 // distributed under the License is distributed on an "AS IS" BASIS, 12 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 // See the License for the specific language governing permissions and 14 // limitations under the License. 15 // 16 17 #ifndef UPDATE_ENGINE_PAYLOAD_CONSUMER_FAKE_EXTENT_WRITER_H_ 18 #define UPDATE_ENGINE_PAYLOAD_CONSUMER_FAKE_EXTENT_WRITER_H_ 19 20 #include <memory> 21 22 #include <brillo/secure_blob.h> 23 24 #include "update_engine/payload_consumer/extent_writer.h" 25 26 namespace chromeos_update_engine { 27 28 // FakeExtentWriter is a concrete ExtentWriter subclass that keeps track of all 29 // the written data, useful for testing. 30 class FakeExtentWriter : public ExtentWriter { 31 public: 32 FakeExtentWriter() = default; 33 ~FakeExtentWriter() override = default; 34 35 // ExtentWriter overrides. Init(const google::protobuf::RepeatedPtrField<Extent> &,uint32_t)36 bool Init(const google::protobuf::RepeatedPtrField<Extent>& /* extents */, 37 uint32_t /* block_size */) override { 38 init_called_ = true; 39 return true; 40 }; Write(const void * bytes,size_t count)41 bool Write(const void* bytes, size_t count) override { 42 if (!init_called_) 43 return false; 44 written_data_.insert(written_data_.end(), 45 reinterpret_cast<const uint8_t*>(bytes), 46 reinterpret_cast<const uint8_t*>(bytes) + count); 47 return true; 48 } 49 50 // Fake methods. InitCalled()51 bool InitCalled() { return init_called_; } WrittenData()52 brillo::Blob WrittenData() { return written_data_; } 53 54 private: 55 bool init_called_{false}; 56 brillo::Blob written_data_; 57 58 DISALLOW_COPY_AND_ASSIGN(FakeExtentWriter); 59 }; 60 61 } // namespace chromeos_update_engine 62 63 #endif // UPDATE_ENGINE_PAYLOAD_CONSUMER_FAKE_EXTENT_WRITER_H_ 64