| // Copyright 2019 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <fcntl.h> |
| #include <limits.h> |
| #include <stdint.h> |
| #include <unistd.h> |
| |
| #include <climits> |
| |
| #include <block-client/cpp/fake-device.h> |
| #include <gtest/gtest.h> |
| |
| #include "src/storage/blobfs/blobfs.h" |
| #include "src/storage/blobfs/format.h" |
| #include "src/storage/blobfs/mkfs.h" |
| #include "src/storage/blobfs/test/unit/utils.h" |
| |
| namespace blobfs { |
| namespace { |
| constexpr uint64_t kBlockCount = 1024; |
| |
| using block_client::FakeBlockDevice; |
| |
| void CreateAndFormatDevice(std::unique_ptr<FakeBlockDevice>* out) { |
| auto device = std::make_unique<FakeBlockDevice>(kBlockCount, kBlobfsBlockSize); |
| ASSERT_EQ(FormatFilesystem(device.get(), FilesystemOptions{}), ZX_OK); |
| |
| *out = std::move(device); |
| } |
| |
| TEST(CreateTest, ValidSuperblock) { |
| std::unique_ptr<FakeBlockDevice> device; |
| CreateAndFormatDevice(&device); |
| |
| std::unique_ptr<blobfs::Blobfs> blobfs; |
| EXPECT_EQ(Blobfs::Create(nullptr, std::move(device), MountOptions(), zx::resource(), &blobfs), |
| ZX_OK); |
| EXPECT_NE(blobfs.get(), nullptr); |
| } |
| |
| TEST(CreateTest, AllocNodeCountGreaterThanAllocated) { |
| std::unique_ptr<FakeBlockDevice> device; |
| CreateAndFormatDevice(&device); |
| |
| char block[kBlobfsBlockSize]; |
| DeviceBlockRead(device.get(), block, sizeof(block), kSuperblockOffset); |
| Superblock* info = reinterpret_cast<Superblock*>(block); |
| info->alloc_inode_count++; |
| DeviceBlockWrite(device.get(), block, sizeof(block), kSuperblockOffset); |
| |
| std::unique_ptr<blobfs::Blobfs> blobfs; |
| |
| EXPECT_EQ(Blobfs::Create(nullptr, std::move(device), MountOptions(), zx::resource(), &blobfs), |
| ZX_ERR_IO_OVERRUN); |
| EXPECT_EQ(blobfs.get(), nullptr); |
| } |
| |
| } // namespace |
| |
| } // namespace blobfs |