1 /* 2 * Copyright (C) 2013 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 #include "file_output_stream.h" 18 #include "vector_output_stream.h" 19 20 #include "base/unix_file/fd_file.h" 21 #include "base/logging.h" 22 #include "buffered_output_stream.h" 23 #include "common_runtime_test.h" 24 25 namespace art { 26 27 class OutputStreamTest : public CommonRuntimeTest { 28 protected: 29 void CheckOffset(off_t expected) { 30 off_t actual = output_stream_->Seek(0, kSeekCurrent); 31 EXPECT_EQ(expected, actual); 32 } 33 34 void SetOutputStream(OutputStream& output_stream) { 35 output_stream_ = &output_stream; 36 } 37 38 void GenerateTestOutput() { 39 EXPECT_EQ(3, output_stream_->Seek(3, kSeekCurrent)); 40 CheckOffset(3); 41 EXPECT_EQ(2, output_stream_->Seek(2, kSeekSet)); 42 CheckOffset(2); 43 uint8_t buf[] = { 1, 2, 3, 4, 5, 6, 7, 8, 9 }; 44 EXPECT_TRUE(output_stream_->WriteFully(buf, 2)); 45 CheckOffset(4); 46 EXPECT_EQ(6, output_stream_->Seek(2, kSeekEnd)); 47 CheckOffset(6); 48 EXPECT_TRUE(output_stream_->WriteFully(buf, 4)); 49 CheckOffset(10); 50 } 51 52 void CheckTestOutput(const std::vector<uint8_t>& actual) { 53 uint8_t expected[] = { 54 0, 0, 1, 2, 0, 0, 1, 2, 3, 4 55 }; 56 EXPECT_EQ(sizeof(expected), actual.size()); 57 EXPECT_EQ(0, memcmp(expected, &actual[0], actual.size())); 58 } 59 60 OutputStream* output_stream_; 61 }; 62 63 TEST_F(OutputStreamTest, File) { 64 ScratchFile tmp; 65 FileOutputStream output_stream(tmp.GetFile()); 66 SetOutputStream(output_stream); 67 GenerateTestOutput(); 68 std::unique_ptr<File> in(OS::OpenFileForReading(tmp.GetFilename().c_str())); 69 EXPECT_TRUE(in.get() != NULL); 70 std::vector<uint8_t> actual(in->GetLength()); 71 bool readSuccess = in->ReadFully(&actual[0], actual.size()); 72 EXPECT_TRUE(readSuccess); 73 CheckTestOutput(actual); 74 } 75 76 TEST_F(OutputStreamTest, Buffered) { 77 ScratchFile tmp; 78 std::unique_ptr<FileOutputStream> file_output_stream(new FileOutputStream(tmp.GetFile())); 79 CHECK(file_output_stream.get() != NULL); 80 BufferedOutputStream buffered_output_stream(file_output_stream.release()); 81 SetOutputStream(buffered_output_stream); 82 GenerateTestOutput(); 83 std::unique_ptr<File> in(OS::OpenFileForReading(tmp.GetFilename().c_str())); 84 EXPECT_TRUE(in.get() != NULL); 85 std::vector<uint8_t> actual(in->GetLength()); 86 bool readSuccess = in->ReadFully(&actual[0], actual.size()); 87 EXPECT_TRUE(readSuccess); 88 CheckTestOutput(actual); 89 } 90 91 TEST_F(OutputStreamTest, Vector) { 92 std::vector<uint8_t> output; 93 VectorOutputStream output_stream("test vector output", output); 94 SetOutputStream(output_stream); 95 GenerateTestOutput(); 96 CheckTestOutput(output); 97 } 98 99 } // namespace art 100
