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/*++
Copyright (c) Microsoft. All rights reserved.
Module Name:
SimpleTests.cpp
Abstract:
This file contains smoke tests for WSL.
--*/
#include "precomp.h"
#include "Common.h"
namespace SimpleTests {
class SimpleTests
{
WSL_TEST_CLASS(SimpleTests)
// Initialize the tests
TEST_CLASS_SETUP(TestClassSetup)
{
VERIFY_ARE_EQUAL(LxsstuInitialize(FALSE), TRUE);
return true;
}
TEST_CLASS_CLEANUP(TestClassCleanup)
{
LxsstuUninitialize(FALSE);
return true;
}
TEST_METHOD(EchoTest)
{
const std::wstring echoExpected = L"LOW!\n";
auto [output, __] = LxsstuLaunchWslAndCaptureOutput(L"echo LOW!");
VERIFY_ARE_EQUAL(output, echoExpected);
}
TEST_METHOD(WhoamiTest)
{
const std::wstring whoamiExpected = L"root\n";
auto [output, __] = LxsstuLaunchWslAndCaptureOutput(L"-u root whoami");
VERIFY_ARE_EQUAL(output, whoamiExpected);
}
TEST_METHOD(ChangeDirTest)
{
const std::wstring cdExpected = L"/root\n";
auto [output, __] = LxsstuLaunchWslAndCaptureOutput(L"--cd ~ --user root pwd");
VERIFY_ARE_EQUAL(output, cdExpected);
}
TEST_METHOD(Daemonize)
{
WslConfigChange config(LxssGenerateTestConfig({.vmIdleTimeout = 0}));
WslShutdown();
VERIFY_ARE_EQUAL(LxsstuLaunchWsl(L"-- eval \"touch /dev/shm/backgroundmagic; daemonize $(which sleep) 30\""), (DWORD)0);
std::this_thread::sleep_for(std::chrono::seconds(20));
VERIFY_ARE_EQUAL(LxsstuLaunchWsl(L"-- ls /dev/shm/backgroundmagic"), (DWORD)0);
}
static void VerifySparse(wchar_t const* path, bool sparse)
{
DWORD attributes = ::GetFileAttributesW(path);
VERIFY_IS_FALSE(attributes == INVALID_FILE_ATTRIBUTES);
VERIFY_IS_TRUE(WI_IsFlagSet(attributes, FILE_ATTRIBUTE_SPARSE_FILE) == sparse);
}
TEST_METHOD(CheckSparse)
{
WSL2_TEST_ONLY();
WslConfigChange config(LxssGenerateTestConfig({.sparse = true}));
std::filesystem::path tar = std::tmpnam(nullptr);
tar += ".tar";
LogInfo("tar %ls", tar.c_str());
auto cleanupTar = wil::scope_exit_log(WI_DIAGNOSTICS_INFO, [&] {
try
{
std::filesystem::remove(tar);
}
CATCH_LOG()
});
const std::wstring tempDistro = L"temp_distro";
const std::filesystem::path vhdDir = std::tmpnam(nullptr);
LogInfo("vhdDir %ls", vhdDir.c_str());
VERIFY_IS_TRUE(std::filesystem::create_directory(vhdDir));
auto cleanup = wil::scope_exit_log(WI_DIAGNOSTICS_INFO, [&] {
try
{
LxsstuLaunchWsl(std::format(L"{} {}", WSL_UNREGISTER_ARG, tempDistro).c_str());
std::filesystem::remove_all(vhdDir);
}
CATCH_LOG()
});
VERIFY_ARE_EQUAL(LxsstuLaunchWsl(std::format(L"{} {} {}", WSL_EXPORT_ARG, LXSS_DISTRO_NAME_TEST, tar.wstring()).c_str()), (DWORD)0);
LxsstuLaunchWsl(std::format(L"{} {}", WSL_UNREGISTER_ARG, tempDistro).c_str());
ValidateOutput(
std::format(L"{} {} {} {}", WSL_IMPORT_ARG, tempDistro, vhdDir.wstring(), tar.wstring()).c_str(),
L"The operation completed successfully. \r\n",
L"wsl: Sparse VHD support is currently disabled due to potential data corruption.\r\n"
L"To force a distribution to use a sparse vhd, please run:\r\n"
L"wsl.exe --manage <DistributionName> --set-sparse --allow-unsafe\r\n",
0);
std::filesystem::path vhdPath = vhdDir / LXSS_VM_MODE_VHD_NAME;
VerifySparse(vhdPath.c_str(), false);
WslShutdown();
// Setting a distro VHD to sparse requires the allow unsafe flag.
ValidateOutput(
std::format(L"{} {} {} {}", WSL_MANAGE_ARG, tempDistro, WSL_MANAGE_ARG_SET_SPARSE_OPTION_LONG, L"true").c_str(),
L"Sparse VHD support is currently disabled due to potential data corruption.\r\n"
L"To force a distribution to use a sparse vhd, please run:\r\n"
L"wsl.exe --manage <DistributionName> --set-sparse --allow-unsafe\r\nError code: Wsl/Service/E_INVALIDARG\r\n",
L"",
-1);
VerifySparse(vhdPath.c_str(), false);
ValidateOutput(
std::format(L"{} {} {} {} {}", WSL_MANAGE_ARG, tempDistro, WSL_MANAGE_ARG_SET_SPARSE_OPTION_LONG, L"true", WSL_MANAGE_ARG_ALLOW_UNSAFE)
.c_str(),
L"The operation completed successfully. \r\n",
L"",
0);
VerifySparse(vhdPath.c_str(), true);
// Disabling sparse on a VHD does not require the allow unsafe flag.
ValidateOutput(
std::format(L"{} {} {} {}", WSL_MANAGE_ARG, tempDistro, WSL_MANAGE_ARG_SET_SPARSE_OPTION_LONG, L"false").c_str(),
L"The operation completed successfully. \r\n",
L"",
0);
VerifySparse(vhdPath.c_str(), false);
}
TEST_METHOD(StringHelpers)
{
std::string string1 = "aaaBBB";
std::string string2 = "aaabbb";
VERIFY_IS_TRUE(wsl::shared::string::IsEqual(string1, string2, true));
VERIFY_IS_FALSE(wsl::shared::string::IsEqual(string1, string2, false));
VERIFY_IS_TRUE(wsl::shared::string::IsEqual(string1.c_str(), string2.c_str(), true));
VERIFY_IS_FALSE(wsl::shared::string::IsEqual(string1.c_str(), string2.c_str(), false));
VERIFY_IS_TRUE(wsl::shared::string::StartsWith(string1, string2.substr(0, 3), true));
VERIFY_IS_FALSE(wsl::shared::string::StartsWith(string1, string2, false));
std::wstring wstring1 = L"aaaBBB";
std::wstring wstring2 = L"aaabbb";
VERIFY_IS_TRUE(wsl::shared::string::IsEqual(wstring1, wstring2, true));
VERIFY_IS_FALSE(wsl::shared::string::IsEqual(wstring1, wstring2, false));
VERIFY_IS_TRUE(wsl::shared::string::IsEqual(wstring1.c_str(), wstring2.c_str(), true));
VERIFY_IS_FALSE(wsl::shared::string::IsEqual(wstring1.c_str(), wstring2.c_str(), false));
VERIFY_IS_TRUE(wsl::shared::string::StartsWith(wstring1, wstring2.substr(0, 3), true));
VERIFY_IS_FALSE(wsl::shared::string::StartsWith(wstring1, wstring2, false));
// Test wsl::shared::string::ParseBool
std::vector<std::pair<LPCSTR, std::optional<bool>>> boolTests = {
{"1", true},
{"0", false},
{"true", true},
{"false", false},
{"True", true},
{"False", false},
{"t", std::nullopt},
{"f", std::nullopt},
{"T", std::nullopt},
{"F", std::nullopt},
{nullptr, std::nullopt},
{"", std::nullopt},
{"2", std::nullopt},
{"tru", std::nullopt},
{"fals", std::nullopt},
};
for (const auto& [input, expected] : boolTests)
{
VERIFY_ARE_EQUAL(expected, wsl::shared::string::ParseBool(input));
std::wstring wideString = wsl::shared::string::MultiByteToWide(input);
VERIFY_ARE_EQUAL(expected, wsl::shared::string::ParseBool(wideString.c_str()));
}
// Test wsl::shared::string::ParseMemoryString
const std::vector<std::pair<LPCSTR, std::optional<uint64_t>>> testCases{
{"0", 0},
{"1", 1},
{" 1", 1},
{"1B", 1},
{"1K", 1024},
{"1KB", 1024},
{"2M", 2 * 1024 * 1024},
{"100MB", 100 * 1024 * 1024},
{"9G", 9 * 1024ULL * 1024ULL * 1024ULL},
{"44GB", 44 * 1024ULL * 1024ULL * 1024ULL},
{"1TB", 1ULL << 40},
{"2T", 2ULL << 40},
{"1 B", std::nullopt},
{nullptr, std::nullopt},
{"", std::nullopt},
{"foo", std::nullopt}};
for (const auto& [input, expected] : testCases)
{
VERIFY_ARE_EQUAL(wsl::shared::string::ParseMemorySize(input), expected);
const auto wideInput = wsl::shared::string::MultiByteToWide(input);
VERIFY_ARE_EQUAL(wsl::shared::string::ParseMemorySize(wideInput.c_str()), expected);
}
// Test wsl::shared::string GUID helpers
const GUID guid = {0x1234567a, 0x1234, 0x5678, {0x12, 0x34, 0x56, 0x78, 0x12, 0x34, 0x56, 0x78}};
const std::string guidString = "{1234567a-1234-5678-1234-567812345678}";
const std::string guidStringNoBraces = "1234567a-1234-5678-1234-567812345678";
const std::vector<std::pair<LPCSTR, std::optional<GUID>>> guidTestCases{
{guidString.c_str(), guid},
{guidStringNoBraces.c_str(), guid},
{nullptr, std::nullopt},
{"", std::nullopt},
{"foo", std::nullopt},
{"1234567G-1234-5678-1234-5678123456789", std::nullopt},
{"{1234567a-1234-5678-1234-567812345678", std::nullopt},
{"{1234567aB-1234-5678-1234-567812345678}", std::nullopt}};
for (const auto& [input, expected] : guidTestCases)
{
VERIFY_ARE_EQUAL(expected, wsl::shared::string::ToGuid(input));
const auto wideInput = wsl::shared::string::MultiByteToWide(input);
VERIFY_ARE_EQUAL(expected, wsl::shared::string::ToGuid(wideInput));
}
VERIFY_ARE_EQUAL(guidString, wsl::shared::string::GuidToString<char>(guid));
VERIFY_ARE_EQUAL(guidString, wsl::shared::string::GuidToString<char>(guid, wsl::shared::string::GuidToStringFlags::AddBraces));
VERIFY_ARE_EQUAL(guidStringNoBraces, wsl::shared::string::GuidToString<char>(guid, wsl::shared::string::GuidToStringFlags::None));
auto upperCaseGuidString = guidStringNoBraces;
std::transform(upperCaseGuidString.begin(), upperCaseGuidString.end(), upperCaseGuidString.begin(), toupper);
VERIFY_ARE_EQUAL(upperCaseGuidString, wsl::shared::string::GuidToString<char>(guid, wsl::shared::string::GuidToStringFlags::Uppercase));
const auto wideGuidString = wsl::shared::string::MultiByteToWide(guidString);
VERIFY_ARE_EQUAL(wideGuidString, wsl::shared::string::GuidToString<wchar_t>(guid));
VERIFY_ARE_EQUAL(wideGuidString, wsl::shared::string::GuidToString<wchar_t>(guid, wsl::shared::string::GuidToStringFlags::AddBraces));
const auto wideGuidStringNoBraces = wsl::shared::string::MultiByteToWide(guidStringNoBraces);
VERIFY_ARE_EQUAL(wideGuidStringNoBraces, wsl::shared::string::GuidToString<wchar_t>(guid, wsl::shared::string::GuidToStringFlags::None));
auto upperCaseGuidStringWide = wideGuidStringNoBraces;
std::transform(upperCaseGuidStringWide.begin(), upperCaseGuidStringWide.end(), upperCaseGuidStringWide.begin(), toupper);
VERIFY_ARE_EQUAL(upperCaseGuidStringWide, wsl::shared::string::GuidToString<wchar_t>(guid, wsl::shared::string::GuidToStringFlags::Uppercase));
}
};
} // namespace SimpleTests
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