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https://github.com/dolphin-emu/dolphin.git
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UnitTests: Add tests for the Wii filesystem
This adds unit tests for the Wii filesystem now that the filesystem interface is neatly separated from the IPC code. Basic FS functionality is tested, in addition to problematic usages and edge cases that Dolphin used to handle incorrectly (which of course broke emulated software). These tests should make it quite a bit harder to introduce regressions. Issues that are covered by the tests in particular: * Metadata: issue 10234 (though tests are commented out for now because Dolphin doesn't support NAND images yet so it can't track metadata); * EOF seeks/reads: https://github.com/dolphin-emu/dolphin/pull/4942 * Read/write operations from multiple handles: see issue 2917, 5232 and 8702 and https://github.com/dolphin-emu/dolphin/pull/2649
This commit is contained in:
Léo Lam
parent
eecdb51709
commit
45647df349
@ -11,3 +11,5 @@ add_dolphin_test(DSPAssemblyTest
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)
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add_dolphin_test(ESFormatsTest IOS/ES/FormatsTest.cpp IOS/ES/TestBinaryData.cpp)
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add_dolphin_test(FileSystemTest IOS/FS/FileSystemTest.cpp)
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291
Source/UnitTests/Core/IOS/FS/FileSystemTest.cpp
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291
Source/UnitTests/Core/IOS/FS/FileSystemTest.cpp
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// Copyright 2018 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include <array>
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#include <memory>
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#include <string>
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#include <gtest/gtest.h>
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#include "Common/CommonTypes.h"
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#include "Common/FileUtil.h"
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#include "Core/IOS/FS/FileSystem.h"
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#include "Core/IOS/IOS.h"
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#include "UICommon/UICommon.h"
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using namespace IOS::HLE::FS;
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class FileSystemTest : public testing::Test
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{
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protected:
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FileSystemTest() : m_profile_path{File::CreateTempDir()}
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{
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UICommon::SetUserDirectory(m_profile_path);
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m_fs = IOS::HLE::Kernel{}.GetFS();
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}
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virtual ~FileSystemTest()
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{
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m_fs.reset();
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File::DeleteDirRecursively(m_profile_path);
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}
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std::shared_ptr<FileSystem> m_fs;
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private:
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std::string m_profile_path;
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};
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TEST_F(FileSystemTest, EssentialDirectories)
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{
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for (const std::string& path :
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{"/sys", "/ticket", "/title", "/shared1", "/shared2", "/tmp", "/import", "/meta"})
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{
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EXPECT_TRUE(m_fs->ReadDirectory(Uid{0}, Gid{0}, path).Succeeded()) << path;
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}
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}
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TEST_F(FileSystemTest, CreateFile)
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{
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const std::string PATH = "/tmp/f";
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ASSERT_EQ(m_fs->CreateFile(Uid{0}, Gid{0}, PATH, 0, Mode::Read, Mode::None, Mode::None),
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ResultCode::Success);
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const Result<Metadata> stats = m_fs->GetMetadata(Uid{0}, Gid{0}, PATH);
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ASSERT_TRUE(stats.Succeeded());
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EXPECT_TRUE(stats->is_file);
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EXPECT_EQ(stats->size, 0u);
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// TODO: After we start saving metadata correctly, check the UID, GID, permissions
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// as well (issue 10234).
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ASSERT_EQ(m_fs->CreateFile(Uid{0}, Gid{0}, PATH, 0, Mode::Read, Mode::None, Mode::None),
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ResultCode::AlreadyExists);
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const Result<std::vector<std::string>> tmp_files = m_fs->ReadDirectory(Uid{0}, Gid{0}, "/tmp");
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ASSERT_TRUE(tmp_files.Succeeded());
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EXPECT_EQ(std::count(tmp_files->begin(), tmp_files->end(), "f"), 1u);
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}
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TEST_F(FileSystemTest, CreateDirectory)
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{
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const std::string PATH = "/tmp/d";
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ASSERT_EQ(m_fs->CreateDirectory(Uid{0}, Gid{0}, PATH, 0, Mode::Read, Mode::None, Mode::None),
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ResultCode::Success);
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const Result<Metadata> stats = m_fs->GetMetadata(Uid{0}, Gid{0}, PATH);
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ASSERT_TRUE(stats.Succeeded());
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EXPECT_FALSE(stats->is_file);
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// TODO: After we start saving metadata correctly, check the UID, GID, permissions
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// as well (issue 10234).
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const Result<std::vector<std::string>> children = m_fs->ReadDirectory(Uid{0}, Gid{0}, PATH);
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ASSERT_TRUE(children.Succeeded());
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EXPECT_TRUE(children->empty());
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// TODO: uncomment this after the FS code is fixed to return AlreadyExists.
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// EXPECT_EQ(m_fs->CreateDirectory(Uid{0}, Gid{0}, PATH, 0, Mode::Read, Mode::None, Mode::None),
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// ResultCode::AlreadyExists);
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}
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TEST_F(FileSystemTest, Delete)
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{
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EXPECT_TRUE(m_fs->ReadDirectory(Uid{0}, Gid{0}, "/tmp").Succeeded());
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EXPECT_EQ(m_fs->Delete(Uid{0}, Gid{0}, "/tmp"), ResultCode::Success);
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EXPECT_EQ(m_fs->ReadDirectory(Uid{0}, Gid{0}, "/tmp").Error(), ResultCode::NotFound);
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}
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TEST_F(FileSystemTest, Rename)
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{
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EXPECT_TRUE(m_fs->ReadDirectory(Uid{0}, Gid{0}, "/tmp").Succeeded());
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EXPECT_EQ(m_fs->Rename(Uid{0}, Gid{0}, "/tmp", "/test"), ResultCode::Success);
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EXPECT_EQ(m_fs->ReadDirectory(Uid{0}, Gid{0}, "/tmp").Error(), ResultCode::NotFound);
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EXPECT_TRUE(m_fs->ReadDirectory(Uid{0}, Gid{0}, "/test").Succeeded());
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}
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TEST_F(FileSystemTest, GetDirectoryStats)
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{
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auto check_stats = [this](u32 clusters, u32 inodes) {
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const Result<DirectoryStats> stats = m_fs->GetDirectoryStats("/tmp");
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ASSERT_TRUE(stats.Succeeded());
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EXPECT_EQ(stats->used_clusters, clusters);
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EXPECT_EQ(stats->used_inodes, inodes);
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};
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check_stats(0u, 1u);
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EXPECT_EQ(m_fs->CreateFile(Uid{0}, Gid{0}, "/tmp/file", 0, Mode::Read, Mode::None, Mode::None),
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ResultCode::Success);
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// Still no clusters (because the file is empty), but 2 inodes now.
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check_stats(0u, 2u);
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{
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const Result<FileHandle> file = m_fs->OpenFile(Uid{0}, Gid{0}, "/tmp/file", Mode::Write);
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file->Write(std::vector<u8>(20).data(), 20);
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}
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// The file should now take up one cluster.
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// TODO: uncomment after the FS code is fixed.
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// check_stats(1u, 2u);
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}
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// Files need to be explicitly created using CreateFile or CreateDirectory.
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// Automatically creating them on first use would be a bug.
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TEST_F(FileSystemTest, NonExistingFiles)
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{
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const Result<Metadata> metadata = m_fs->GetMetadata(Uid{0}, Gid{0}, "/tmp/foo");
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ASSERT_FALSE(metadata.Succeeded());
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EXPECT_EQ(metadata.Error(), ResultCode::NotFound);
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const Result<FileHandle> file = m_fs->OpenFile(Uid{0}, Gid{0}, "/tmp/foo", Mode::Read);
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ASSERT_FALSE(file.Succeeded());
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EXPECT_EQ(file.Error(), ResultCode::NotFound);
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const Result<std::vector<std::string>> children = m_fs->ReadDirectory(Uid{0}, Gid{0}, "/foo");
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ASSERT_FALSE(children.Succeeded());
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EXPECT_EQ(children.Error(), ResultCode::NotFound);
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}
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TEST_F(FileSystemTest, Seek)
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{
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const std::vector<u8> TEST_DATA(10);
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ASSERT_EQ(m_fs->CreateFile(Uid{0}, Gid{0}, "/tmp/f", 0, Mode::ReadWrite, Mode::None, Mode::None),
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ResultCode::Success);
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const Result<FileHandle> file = m_fs->OpenFile(Uid{0}, Gid{0}, "/tmp/f", Mode::ReadWrite);
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ASSERT_TRUE(file.Succeeded());
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// An empty file should have a size of exactly 0 bytes.
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EXPECT_EQ(file->GetStatus()->size, 0u);
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// The file position should be set to the start right after an open.
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EXPECT_EQ(file->GetStatus()->offset, 0u);
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// Write some dummy data.
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ASSERT_TRUE(file->Write(TEST_DATA.data(), TEST_DATA.size()).Succeeded());
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EXPECT_EQ(file->GetStatus()->size, TEST_DATA.size());
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EXPECT_EQ(file->GetStatus()->offset, TEST_DATA.size());
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auto seek_and_check = [&file](u32 offset, SeekMode mode, u32 expected_position) {
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const Result<u32> new_offset = file->Seek(offset, mode);
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ASSERT_TRUE(new_offset.Succeeded());
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EXPECT_EQ(*new_offset, expected_position);
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EXPECT_EQ(file->GetStatus()->offset, expected_position);
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};
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seek_and_check(0, SeekMode::Set, 0);
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seek_and_check(5, SeekMode::Set, 5);
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seek_and_check(0, SeekMode::Current, 5);
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seek_and_check(2, SeekMode::Current, 7);
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seek_and_check(0, SeekMode::End, 10);
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// Test past-EOF seeks.
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const Result<u32> new_position = file->Seek(11, SeekMode::Set);
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ASSERT_FALSE(new_position.Succeeded());
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EXPECT_EQ(new_position.Error(), ResultCode::Invalid);
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}
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TEST_F(FileSystemTest, WriteAndSimpleReadback)
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{
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const std::vector<u8> TEST_DATA{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}};
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std::vector<u8> read_buffer(TEST_DATA.size());
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ASSERT_EQ(m_fs->CreateFile(Uid{0}, Gid{0}, "/tmp/f", 0, Mode::ReadWrite, Mode::None, Mode::None),
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ResultCode::Success);
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const Result<FileHandle> file = m_fs->OpenFile(Uid{0}, Gid{0}, "/tmp/f", Mode::ReadWrite);
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ASSERT_TRUE(file.Succeeded());
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// Write some test data.
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ASSERT_TRUE(file->Write(TEST_DATA.data(), TEST_DATA.size()).Succeeded());
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// Now read it back and make sure it is identical.
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ASSERT_TRUE(file->Seek(0, SeekMode::Set).Succeeded());
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ASSERT_TRUE(file->Read(read_buffer.data(), read_buffer.size()).Succeeded());
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EXPECT_EQ(TEST_DATA, read_buffer);
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}
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TEST_F(FileSystemTest, WriteAndRead)
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{
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const std::vector<u8> TEST_DATA{{0xf, 1, 2, 3, 4, 5, 6, 7, 8, 9}};
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std::vector<u8> buffer(TEST_DATA.size());
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ASSERT_EQ(m_fs->CreateFile(Uid{0}, Gid{0}, "/tmp/f", 0, Mode::ReadWrite, Mode::None, Mode::None),
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ResultCode::Success);
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Result<FileHandle> tmp_handle = m_fs->OpenFile(Uid{0}, Gid{0}, "/tmp/f", Mode::ReadWrite);
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ASSERT_TRUE(tmp_handle.Succeeded());
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const Fd fd = tmp_handle->Release();
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// Try to read from an empty file. This should do nothing.
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// See https://github.com/dolphin-emu/dolphin/pull/4942
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Result<u32> read_result = m_fs->ReadBytesFromFile(fd, buffer.data(), buffer.size());
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EXPECT_TRUE(read_result.Succeeded());
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EXPECT_EQ(*read_result, 0u);
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EXPECT_EQ(m_fs->GetFileStatus(fd)->offset, 0u);
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ASSERT_TRUE(m_fs->WriteBytesToFile(fd, TEST_DATA.data(), TEST_DATA.size()).Succeeded());
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EXPECT_EQ(m_fs->GetFileStatus(fd)->offset, TEST_DATA.size());
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// Try to read past EOF while we are at the end of the file. This should do nothing too.
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read_result = m_fs->ReadBytesFromFile(fd, buffer.data(), buffer.size());
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EXPECT_TRUE(read_result.Succeeded());
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EXPECT_EQ(*read_result, 0u);
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EXPECT_EQ(m_fs->GetFileStatus(fd)->offset, TEST_DATA.size());
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// Go back to the start and try to read past EOF. This should read the entire file until EOF.
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ASSERT_TRUE(m_fs->SeekFile(fd, 0, SeekMode::Set).Succeeded());
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std::vector<u8> larger_buffer(TEST_DATA.size() + 10);
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read_result = m_fs->ReadBytesFromFile(fd, larger_buffer.data(), larger_buffer.size());
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EXPECT_TRUE(read_result.Succeeded());
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EXPECT_EQ(*read_result, TEST_DATA.size());
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EXPECT_EQ(m_fs->GetFileStatus(fd)->offset, TEST_DATA.size());
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}
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TEST_F(FileSystemTest, MultipleHandles)
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{
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ASSERT_EQ(m_fs->CreateFile(Uid{0}, Gid{0}, "/tmp/f", 0, Mode::ReadWrite, Mode::None, Mode::None),
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ResultCode::Success);
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{
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const Result<FileHandle> file = m_fs->OpenFile(Uid{0}, Gid{0}, "/tmp/f", Mode::ReadWrite);
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ASSERT_TRUE(file.Succeeded());
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// Fill it with 10 zeroes.
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ASSERT_TRUE(file->Write(std::vector<u8>(10).data(), 10).Succeeded());
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}
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const Result<FileHandle> file1 = m_fs->OpenFile(Uid{0}, Gid{0}, "/tmp/f", Mode::ReadWrite);
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const Result<FileHandle> file2 = m_fs->OpenFile(Uid{0}, Gid{0}, "/tmp/f", Mode::ReadWrite);
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ASSERT_TRUE(file1.Succeeded());
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ASSERT_TRUE(file2.Succeeded());
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// Write some test data using one handle and make sure the data is seen by the other handle
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// (see issue 2917, 5232 and 8702 and https://github.com/dolphin-emu/dolphin/pull/2649).
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// Also make sure the file offsets are independent for each handle.
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const std::vector<u8> TEST_DATA{{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}};
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EXPECT_EQ(file1->GetStatus()->offset, 0u);
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ASSERT_TRUE(file1->Write(TEST_DATA.data(), TEST_DATA.size()).Succeeded());
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EXPECT_EQ(file1->GetStatus()->offset, 10u);
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std::vector<u8> read_buffer(TEST_DATA.size());
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EXPECT_EQ(file2->GetStatus()->offset, 0u);
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ASSERT_TRUE(file2->Read(read_buffer.data(), read_buffer.size()).Succeeded());
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EXPECT_EQ(file2->GetStatus()->offset, 10u);
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EXPECT_EQ(TEST_DATA, read_buffer);
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}
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// ReadDirectory is used by official titles to determine whether a path is a file.
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// If it is not a file, ResultCode::Invalid must be returned.
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TEST_F(FileSystemTest, ReadDirectoryOnFile)
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{
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ASSERT_EQ(m_fs->CreateFile(Uid{0}, Gid{0}, "/tmp/f", 0, Mode::Read, Mode::None, Mode::None),
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ResultCode::Success);
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const Result<std::vector<std::string>> result = m_fs->ReadDirectory(Uid{0}, Gid{0}, "/tmp/f");
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ASSERT_FALSE(result.Succeeded());
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EXPECT_EQ(result.Error(), ResultCode::Invalid);
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}
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