transmission/tests/libtransmission/subprocess-test.cc

356 lines
11 KiB
C++

/*
* This file Copyright (C) 2017 Mnemosyne LLC
*
* It may be used under the GNU GPL versions 2 or 3
* or any future license endorsed by Mnemosyne LLC.
*
*/
#include "transmission.h"
#include "error.h"
#include "file.h"
#include "platform.h"
#include "subprocess.h"
#include "utils.h"
#include "gtest/internal/gtest-port.h" // GetArgvs()
#include "test-fixtures.h"
#include <array>
#include <cstdlib>
#include <string>
#ifdef _WIN32
#include <windows.h>
#define setenv(key, value, unused) SetEnvironmentVariableA(key, value)
#endif
namespace libtransmission
{
namespace test
{
std::string getTestProgramPath(std::string const& filename)
{
auto const exe_path = makeString(tr_sys_path_resolve(testing::internal::GetArgvs().front().data(), nullptr));
auto const exe_dir = makeString(tr_sys_path_dirname(exe_path.data(), nullptr));
return exe_dir + TR_PATH_DELIMITER + filename;
}
class SubprocessTest
: public ::testing::Test
, public testing::WithParamInterface<std::string>
{
protected:
Sandbox sandbox_;
[[nodiscard]] std::string buildSandboxPath(std::string const& filename) const
{
auto path = sandbox_.path();
path += TR_PATH_DELIMITER;
path += filename;
tr_sys_path_native_separators(&path.front());
return path;
}
[[nodiscard]] static std::string nativeCwd()
{
auto path = makeString(tr_sys_dir_get_current(nullptr));
tr_sys_path_native_separators(&path.front());
return path;
}
std::string const arg_dump_args_{ "--dump-args" };
std::string const arg_dump_env_{ "--dump-env" };
std::string const arg_dump_cwd_{ "--dump-cwd" };
std::string self_path_;
void waitForFileToExist(std::string const& path)
{
auto const test = [path]()
{
return tr_sys_path_exists(path.data(), nullptr);
};
EXPECT_TRUE(waitFor(test, 30000));
}
void SetUp() override
{
self_path_ = GetParam();
}
};
TEST_P(SubprocessTest, SpawnAsyncMissingExec)
{
auto const missing_exe_path = std::string{ TR_IF_WIN32("C:\\", "/") "tr-missing-test-exe" TR_IF_WIN32(".exe", "") };
auto args = std::array<char*, 2>{
// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
tr_strdup(missing_exe_path.data()),
nullptr
};
tr_error* error = nullptr;
auto const ret = tr_spawn_async(args.data(), nullptr, nullptr, &error);
EXPECT_FALSE(ret);
EXPECT_NE(nullptr, error);
EXPECT_NE(0, error->code);
EXPECT_NE(nullptr, error->message);
tr_error_clear(&error);
}
TEST_P(SubprocessTest, SpawnAsyncArgs)
{
auto const result_path = buildSandboxPath("result.txt");
bool const allow_batch_metachars = TR_IF_WIN32(false, true) || !tr_str_has_suffix(self_path_.c_str(), ".cmd");
auto const test_arg1 = std::string{ "arg1 " };
auto const test_arg2 = std::string{ " arg2" };
auto const test_arg3 = std::string{};
auto const test_arg4 = std::string{ "\"arg3'^! $PATH %PATH% \\" };
auto args = std::array<char*, 8>{
// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
tr_strdup(self_path_.c_str()),
tr_strdup(result_path.data()),
tr_strdup(arg_dump_args_.data()),
tr_strdup(test_arg1.data()),
tr_strdup(test_arg2.data()),
tr_strdup(test_arg3.data()),
tr_strdup(allow_batch_metachars ? test_arg4.data() : nullptr),
nullptr
};
tr_error* error = nullptr;
bool const ret = tr_spawn_async(args.data(), nullptr, nullptr, &error);
EXPECT_TRUE(ret) << args[0] << ' ' << args[1];
EXPECT_EQ(nullptr, error) << error->code << ", " << error->message;
waitForFileToExist(result_path);
auto fd = tr_sys_file_open(result_path.data(), TR_SYS_FILE_READ, 0, nullptr); // NOLINT
EXPECT_NE(TR_BAD_SYS_FILE, fd);
auto buffer = std::array<char, 1024>{};
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
buffer.back() = '\0';
EXPECT_EQ(test_arg1, buffer.data());
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
buffer.back() = '\0';
EXPECT_EQ(test_arg2, buffer.data());
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
buffer.back() = '\0';
EXPECT_EQ(test_arg3, buffer.data());
if (allow_batch_metachars)
{
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
buffer.back() = '\0';
EXPECT_EQ(test_arg4, buffer.data());
}
EXPECT_FALSE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
buffer.back() = '\0';
tr_sys_file_close(fd, nullptr);
}
TEST_P(SubprocessTest, SpawnAsyncEnv)
{
auto const result_path = buildSandboxPath("result.txt");
auto const test_env_key1 = std::string{ "VAR1" };
auto const test_env_key2 = std::string{ "_VAR_2_" };
auto const test_env_key3 = std::string{ "vAr#" };
auto const test_env_key4 = std::string{ "FOO" };
auto const test_env_key5 = std::string{ "ZOO" };
auto const test_env_key6 = std::string{ "TR_MISSING_TEST_ENV_KEY" };
auto const test_env_value1 = std::string{ "value1 " };
auto const test_env_value2 = std::string{ " value2" };
auto const test_env_value3 = std::string{ " \"value3'^! $PATH %PATH% " };
auto const test_env_value4 = std::string{ "bar" };
auto const test_env_value5 = std::string{ "jar" };
auto args = std::array<char*, 10>{
// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
tr_strdup(self_path_.c_str()), //
tr_strdup(result_path.data()), //
tr_strdup(arg_dump_env_.data()), //
tr_strdup(test_env_key1.data()), //
tr_strdup(test_env_key2.data()), //
tr_strdup(test_env_key3.data()), //
tr_strdup(test_env_key4.data()), //
tr_strdup(test_env_key5.data()), //
tr_strdup(test_env_key6.data()), //
nullptr, //
};
auto env = std::array<char*, 5>{
// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
tr_strdup_printf("%s=%s", test_env_key1.data(), test_env_value1.data()),
tr_strdup_printf("%s=%s", test_env_key2.data(), test_env_value2.data()),
tr_strdup_printf("%s=%s", test_env_key3.data(), test_env_value3.data()),
tr_strdup_printf("%s=%s", test_env_key5.data(), test_env_value5.data()),
nullptr,
};
setenv("FOO", "bar", true); // inherited
setenv("ZOO", "tar", true); // overridden
tr_error* error = nullptr;
bool const ret = tr_spawn_async(args.data(), env.data(), nullptr, &error);
EXPECT_TRUE(ret);
EXPECT_EQ(nullptr, error);
waitForFileToExist(result_path);
auto fd = tr_sys_file_open(result_path.data(), TR_SYS_FILE_READ, 0, nullptr); // NOLINT
EXPECT_NE(TR_BAD_SYS_FILE, fd);
auto buffer = std::array<char, 1024>{};
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
EXPECT_EQ(test_env_value1, buffer.data());
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
EXPECT_EQ(test_env_value2, buffer.data());
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
EXPECT_EQ(test_env_value3, buffer.data());
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
EXPECT_EQ(test_env_value4, buffer.data());
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
EXPECT_EQ(test_env_value5, buffer.data());
buffer[0] = '\0';
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
EXPECT_STREQ("<null>", buffer.data());
EXPECT_FALSE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
tr_sys_file_close(fd, nullptr);
for (auto& env_item : env)
{
tr_free(env_item);
}
}
TEST_P(SubprocessTest, SpawnAsyncCwdExplicit)
{
auto const test_dir = sandbox_.path();
auto const result_path = buildSandboxPath("result.txt");
auto args = std::array<char*, 4>{
// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
tr_strdup(self_path_.c_str()),
tr_strdup(result_path.data()),
tr_strdup(arg_dump_cwd_.data()),
nullptr
};
tr_error* error = nullptr;
bool const ret = tr_spawn_async(args.data(), nullptr, test_dir.c_str(), &error);
EXPECT_TRUE(ret);
EXPECT_EQ(nullptr, error);
waitForFileToExist(result_path);
auto fd = tr_sys_file_open(result_path.data(), TR_SYS_FILE_READ, 0, nullptr); // NOLINT
EXPECT_NE(TR_BAD_SYS_FILE, fd);
auto buffer = std::array<char, 1024>{};
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
EXPECT_EQ(
makeString(tr_sys_path_native_separators(tr_strdup(test_dir.c_str()))),
tr_sys_path_native_separators(&buffer.front()));
EXPECT_FALSE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
tr_sys_file_close(fd, nullptr);
}
TEST_P(SubprocessTest, SpawnAsyncCwdInherit)
{
auto const result_path = buildSandboxPath("result.txt");
auto const expected_cwd = nativeCwd();
auto args = std::array<char*, 4>{
// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
tr_strdup(self_path_.c_str()),
tr_strdup(result_path.data()),
tr_strdup(arg_dump_cwd_.data()),
nullptr
};
tr_error* error = nullptr;
auto const ret = tr_spawn_async(args.data(), nullptr, nullptr, &error);
EXPECT_TRUE(ret);
EXPECT_EQ(nullptr, error);
waitForFileToExist(result_path);
auto fd = tr_sys_file_open(result_path.data(), TR_SYS_FILE_READ, 0, nullptr); // NOLINT
EXPECT_NE(TR_BAD_SYS_FILE, fd);
auto buffer = std::array<char, 1024>{};
EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
EXPECT_EQ(expected_cwd, tr_sys_path_native_separators(&buffer.front()));
EXPECT_FALSE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
tr_sys_file_close(fd, nullptr);
}
TEST_P(SubprocessTest, SpawnAsyncCwdMissing)
{
auto const result_path = buildSandboxPath("result.txt");
auto args = std::array<char*, 4>{
// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
tr_strdup(self_path_.c_str()),
tr_strdup(result_path.data()),
tr_strdup(arg_dump_cwd_.data()),
nullptr
};
tr_error* error = nullptr;
auto const ret = tr_spawn_async(args.data(), nullptr, TR_IF_WIN32("C:\\", "/") "tr-missing-test-work-dir", &error);
EXPECT_FALSE(ret);
EXPECT_NE(nullptr, error);
EXPECT_NE(0, error->code);
EXPECT_NE(nullptr, error->message);
tr_error_clear(&error);
}
INSTANTIATE_TEST_SUITE_P(
Subprocess,
SubprocessTest,
TR_IF_WIN32(
::testing::Values( //
getTestProgramPath("subprocess-test.exe"),
getTestProgramPath("subprocess-test.cmd")),
::testing::Values( //
getTestProgramPath("subprocess-test"))));
} // namespace test
} // namespace libtransmission