| // Copyright 2015 Google Inc. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| #include <string> |
| |
| #include "starboard/file.h" |
| #include "starboard/nplb/file_helpers.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace starboard { |
| namespace nplb { |
| namespace { |
| |
| // Sets up an empty test fixture, required for typed tests. |
| template <class SbFileReadType> |
| class SbFileReadTest : public testing::Test {}; |
| |
| class SbFileReader { |
| public: |
| static int Read(SbFile file, char* data, int size) { |
| return SbFileRead(file, data, size); |
| } |
| }; |
| |
| class SbFileReaderAll { |
| public: |
| static int Read(SbFile file, char* data, int size) { |
| return SbFileReadAll(file, data, size); |
| } |
| }; |
| |
| typedef testing::Types<SbFileReader, SbFileReaderAll> SbFileReadTestTypes; |
| |
| TYPED_TEST_CASE(SbFileReadTest, SbFileReadTestTypes); |
| |
| const int kBufferLength = 16 * 1024; |
| |
| TYPED_TEST(SbFileReadTest, InvalidFileErrors) { |
| char buffer[kBufferLength]; |
| int result = TypeParam::Read(kSbFileInvalid, buffer, kBufferLength); |
| EXPECT_EQ(-1, result); |
| } |
| |
| TYPED_TEST(SbFileReadTest, BasicReading) { |
| // Create a pattern file that is not an even multiple of the buffer size, |
| // but is over several times the size of the buffer. |
| const int kFileSize = kBufferLength * 16 / 3; |
| ScopedRandomFile random_file(kFileSize); |
| const std::string& filename = random_file.filename(); |
| |
| SbFile file = |
| SbFileOpen(filename.c_str(), kSbFileOpenOnly | kSbFileRead, NULL, NULL); |
| ASSERT_TRUE(SbFileIsValid(file)); |
| |
| // Create a bigger buffer than necessary, so we can test the memory around |
| // the portion given to SbFileRead. |
| const int kRealBufferLength = kBufferLength * 2; |
| char real_buffer[kRealBufferLength] = {0}; |
| const int kBufferOffset = kBufferLength / 2; |
| char* buffer = real_buffer + kBufferOffset; |
| |
| // Initialize to some arbitrary pattern so we can verify it later. |
| for (int i = 0; i < kRealBufferLength; ++i) { |
| real_buffer[i] = '\xCD'; |
| } |
| |
| // Read and check the whole file. |
| int total = 0; |
| int previous_total = 0; |
| int max = 0; |
| while (true) { |
| int bytes_read = TypeParam::Read(file, buffer, kBufferLength); |
| if (bytes_read == 0) { |
| break; |
| } |
| |
| // Check that we didn't read more than the buffer size. |
| EXPECT_GE(kBufferLength, bytes_read); |
| |
| // Check that we didn't get an error. |
| EXPECT_LT(0, bytes_read); |
| |
| // Do some accounting to check later. |
| previous_total = total; |
| total += bytes_read; |
| if (bytes_read > max) { |
| max = bytes_read; |
| } |
| |
| ScopedRandomFile::ExpectPattern(previous_total, buffer, bytes_read, |
| __LINE__); |
| } |
| |
| // Check that we read the whole file. |
| EXPECT_EQ(kFileSize, total); |
| |
| // check that we didn't write over any other parts of the buffer. |
| for (int i = 0; i < kBufferOffset; ++i) { |
| EXPECT_EQ('\xCD', real_buffer[i]); |
| } |
| |
| for (int i = kBufferOffset + max; i < kRealBufferLength; ++i) { |
| EXPECT_EQ('\xCD', real_buffer[i]); |
| } |
| |
| bool result = SbFileClose(file); |
| EXPECT_TRUE(result); |
| } |
| |
| TYPED_TEST(SbFileReadTest, ReadPastEnd) { |
| const int kFileSize = kBufferLength; |
| ScopedRandomFile random_file(kFileSize); |
| const std::string& filename = random_file.filename(); |
| |
| SbFile file = |
| SbFileOpen(filename.c_str(), kSbFileOpenOnly | kSbFileRead, NULL, NULL); |
| ASSERT_TRUE(SbFileIsValid(file)); |
| |
| // Create a bigger buffer than necessary, so we can test the memory around |
| // the portion given to SbFileRead. |
| const int kRealBufferLength = kBufferLength * 2; |
| char real_buffer[kRealBufferLength] = {0}; |
| const int kBufferOffset = kBufferLength / 2; |
| char* buffer = real_buffer + kBufferOffset; |
| |
| // Initialize to some arbitrary pattern so we can verify it later. |
| for (int i = 0; i < kRealBufferLength; ++i) { |
| real_buffer[i] = '\xCD'; |
| } |
| |
| // Read off the end of the file. |
| int position = SbFileSeek(file, kSbFileFromEnd, 0); |
| EXPECT_EQ(kFileSize, position); |
| int bytes_read = TypeParam::Read(file, buffer, kBufferLength); |
| EXPECT_EQ(0, bytes_read); |
| |
| for (int i = 0; i < kRealBufferLength; ++i) { |
| EXPECT_EQ('\xCD', real_buffer[i]); |
| } |
| |
| bool result = SbFileClose(file); |
| EXPECT_TRUE(result); |
| } |
| |
| TYPED_TEST(SbFileReadTest, ReadZeroBytes) { |
| const int kFileSize = kBufferLength; |
| ScopedRandomFile random_file(kFileSize); |
| const std::string& filename = random_file.filename(); |
| |
| SbFile file = |
| SbFileOpen(filename.c_str(), kSbFileOpenOnly | kSbFileRead, NULL, NULL); |
| ASSERT_TRUE(SbFileIsValid(file)); |
| |
| // Create a bigger buffer than necessary, so we can test the memory around |
| // the portion given to SbFileRead. |
| const int kRealBufferLength = kBufferLength * 2; |
| char real_buffer[kRealBufferLength] = {0}; |
| const int kBufferOffset = kBufferLength / 2; |
| char* buffer = real_buffer + kBufferOffset; |
| |
| // Initialize to some arbitrary pattern so we can verify it later. |
| for (int i = 0; i < kRealBufferLength; ++i) { |
| real_buffer[i] = '\xCD'; |
| } |
| |
| // Read zero bytes. |
| for (int i = 0; i < 10; ++i) { |
| int bytes_read = TypeParam::Read(file, buffer, 0); |
| EXPECT_EQ(0, bytes_read); |
| } |
| |
| for (int i = 0; i < kRealBufferLength; ++i) { |
| EXPECT_EQ('\xCD', real_buffer[i]); |
| } |
| |
| bool result = SbFileClose(file); |
| EXPECT_TRUE(result); |
| } |
| |
| TYPED_TEST(SbFileReadTest, ReadFromMiddle) { |
| const int kFileSize = kBufferLength * 2; |
| ScopedRandomFile random_file(kFileSize); |
| const std::string& filename = random_file.filename(); |
| |
| SbFile file = |
| SbFileOpen(filename.c_str(), kSbFileOpenOnly | kSbFileRead, NULL, NULL); |
| ASSERT_TRUE(SbFileIsValid(file)); |
| |
| // Create a bigger buffer than necessary, so we can test the memory around |
| // the portion given to SbFileRead. |
| const int kRealBufferLength = kBufferLength * 2; |
| char real_buffer[kRealBufferLength] = {0}; |
| const int kBufferOffset = kBufferLength / 2; |
| char* buffer = real_buffer + kBufferOffset; |
| |
| // Initialize to some arbitrary pattern so we can verify it later. |
| for (int i = 0; i < kRealBufferLength; ++i) { |
| real_buffer[i] = '\xCD'; |
| } |
| |
| // Read from the middle of the file. |
| int position = SbFileSeek(file, kSbFileFromBegin, kFileSize / 4); |
| EXPECT_EQ(kFileSize / 4, position); |
| int bytes_read = TypeParam::Read(file, buffer, kBufferLength); |
| EXPECT_GE(kBufferLength, bytes_read); |
| EXPECT_LT(0, bytes_read); |
| |
| ScopedRandomFile::ExpectPattern(position, buffer, bytes_read, __LINE__); |
| |
| for (int i = 0; i < kBufferOffset; ++i) { |
| EXPECT_EQ('\xCD', real_buffer[i]); |
| } |
| |
| for (int i = kBufferOffset + bytes_read; i < kRealBufferLength; ++i) { |
| EXPECT_EQ('\xCD', real_buffer[i]); |
| } |
| |
| bool result = SbFileClose(file); |
| EXPECT_TRUE(result); |
| } |
| |
| } // namespace |
| } // namespace nplb |
| } // namespace starboard |