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// Copyright 2015 The Cobalt Authors. 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 {
TEST(SbFileTruncateTest, InvalidFileErrors) {
bool result = SbFileTruncate(kSbFileInvalid, 0);
EXPECT_FALSE(result);
result = SbFileTruncate(kSbFileInvalid, -1);
EXPECT_FALSE(result);
result = SbFileTruncate(kSbFileInvalid, 100);
EXPECT_FALSE(result);
}
TEST(SbFileTruncateTest, TruncateToZero) {
const int kStartSize = 123;
const int kEndSize = 0;
ScopedRandomFile random_file(kStartSize);
const std::string& filename = random_file.filename();
SbFile file =
SbFileOpen(filename.c_str(), kSbFileOpenOnly | kSbFileWrite | kSbFileRead,
NULL, NULL);
ASSERT_TRUE(SbFileIsValid(file));
{
SbFileInfo info = {0};
bool result = SbFileGetInfo(file, &info);
EXPECT_EQ(kStartSize, info.size);
}
bool result = SbFileTruncate(file, kEndSize);
EXPECT_TRUE(result);
{
SbFileInfo info = {0};
result = SbFileGetInfo(file, &info);
EXPECT_EQ(kEndSize, info.size);
}
result = SbFileClose(file);
EXPECT_TRUE(result);
}
TEST(SbFileTruncateTest, TruncateUpInSize) {
// "Truncate," I don't think that word means what you think it means.
const int kStartSize = 123;
const int kEndSize = kStartSize * 2;
ScopedRandomFile random_file(kStartSize);
const std::string& filename = random_file.filename();
SbFile file =
SbFileOpen(filename.c_str(), kSbFileOpenOnly | kSbFileWrite | kSbFileRead,
NULL, NULL);
ASSERT_TRUE(SbFileIsValid(file));
{
SbFileInfo info = {0};
bool result = SbFileGetInfo(file, &info);
EXPECT_TRUE(result);
EXPECT_EQ(kStartSize, info.size);
}
int position = static_cast<int>(SbFileSeek(file, kSbFileFromCurrent, 0));
EXPECT_EQ(0, position);
bool result = SbFileTruncate(file, kEndSize);
EXPECT_TRUE(result);
position = static_cast<int>(SbFileSeek(file, kSbFileFromCurrent, 0));
EXPECT_EQ(0, position);
{
SbFileInfo info = {0};
result = SbFileGetInfo(file, &info);
EXPECT_TRUE(result);
EXPECT_EQ(kEndSize, info.size);
}
char buffer[kEndSize] = {0};
int bytes = SbFileRead(file, buffer, kEndSize);
EXPECT_EQ(kEndSize, bytes);
ScopedRandomFile::ExpectPattern(0, buffer, kStartSize, __LINE__);
for (int i = kStartSize; i < kEndSize; ++i) {
EXPECT_EQ(0, buffer[i]);
}
result = SbFileClose(file);
EXPECT_TRUE(result);
}
} // namespace
} // namespace nplb
} // namespace starboard