409 lines
13 KiB
C++
409 lines
13 KiB
C++
/*
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* This file Copyright (C) 2017 Mnemosyne LLC
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*
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* It may be used under the GNU GPL versions 2 or 3
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* or any future license endorsed by Mnemosyne LLC.
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*
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*/
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#include "transmission.h"
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#include "error.h"
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#include "file.h"
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#include "subprocess.h"
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#include "utils.h"
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#include "gtest/internal/gtest-port.h" // GetArgvs()
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#include "test-fixtures.h"
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#include <array>
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#include <cstdlib>
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#include <string>
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#ifdef _WIN32
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#include <windows.h>
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#define setenv(key, value, unused) SetEnvironmentVariableA(key, value)
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#endif
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namespace libtransmission
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{
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namespace test
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{
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std::string getSelfPath()
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{
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auto const exec = ::testing::internal::GetArgvs().front();
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return makeString(tr_sys_path_resolve(exec.data(), nullptr));
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}
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std::string getCmdSelfPath()
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{
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auto const new_suffix = std::string { ".cmd" };
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auto exec = getSelfPath();
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// replace ".exe" suffix with ".cmd"
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exec.resize(exec.size() - new_suffix.size());
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exec.append(new_suffix.data(), new_suffix.size());
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return exec;
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}
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class SubprocessTest :
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public ::testing::Test,
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public testing::WithParamInterface<std::string>
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{
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protected:
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Sandbox sandbox_;
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[[nodiscard]] std::string buildSandboxPath(std::string const& filename) const
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{
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auto path = sandbox_.path();
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path += TR_PATH_DELIMITER;
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path += filename;
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tr_sys_path_native_separators(&path.front());
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return path;
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}
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[[nodiscard]] static std::string nativeCwd()
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{
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auto path = makeString(tr_sys_dir_get_current(nullptr));
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tr_sys_path_native_separators(&path.front());
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return path;
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}
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std::string const arg_dump_args_ { "--dump-args" };
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std::string const arg_dump_env_ { "--dump-env" };
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std::string const arg_dump_cwd_ { "--dump-cwd" };
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std::string self_path_;
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// If command-line args were passed in, then this test is being
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// invoked as a subprocess: it should dump the info requested by
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// the command-line flags and then exit without running tests.
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// FIXME: cleanup does not happen when we exit(). move this all
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// to a standalone file similar to the .cmd file on Windows
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void processCommandLineArgs() const
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{
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auto const argv = ::testing::internal::GetArgvs();
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if (argv.size() < 3)
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{
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return;
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}
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auto const& result_path = argv[1];
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auto const& test_action = argv[2];
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auto const tmp_result_path = result_path + ".tmp";
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auto fd = tr_sys_file_open(tmp_result_path.data(), // NOLINT
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TR_SYS_FILE_WRITE | TR_SYS_FILE_CREATE | TR_SYS_FILE_TRUNCATE,
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0644, nullptr);
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if (fd == TR_BAD_SYS_FILE)
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{
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exit(1);
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}
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if (test_action == arg_dump_args_)
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{
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for (size_t i = 3; i < argv.size(); ++i)
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{
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tr_sys_file_write_line(fd, argv[i].data(), nullptr);
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}
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}
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else if (test_action == arg_dump_env_)
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{
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for (size_t i = 3; i < argv.size(); ++i)
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{
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auto const value = makeString(tr_env_get_string(argv[i].data(), "<null>"));
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tr_sys_file_write_line(fd, value.data(), nullptr);
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}
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}
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else if (test_action == arg_dump_cwd_)
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{
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char* const value = tr_sys_dir_get_current(nullptr);
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tr_sys_file_write_line(fd, value != nullptr ? value : "<null>", nullptr);
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tr_free(value);
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}
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else
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{
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tr_sys_file_close(fd, nullptr);
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tr_sys_path_remove(tmp_result_path.data(), nullptr);
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exit(1);
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}
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tr_sys_file_close(fd, nullptr);
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tr_sys_path_rename(tmp_result_path.data(), result_path.data(), nullptr);
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exit(0);
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}
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void waitForFileToExist(std::string const& path)
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{
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auto const test = [path]() { return tr_sys_path_exists(path.data(), nullptr); };
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EXPECT_TRUE(waitFor(test, 30000));
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}
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void SetUp() override
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{
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processCommandLineArgs();
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self_path_ = GetParam();
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}
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};
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TEST_P(SubprocessTest, SpawnAsyncMissingExec)
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{
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auto const missing_exe_path = std::string { TR_IF_WIN32("C:\\", "/") "tr-missing-test-exe" TR_IF_WIN32(".exe", "") };
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auto args = std::array<char*, 2>{
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// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
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tr_strdup(missing_exe_path.data()),
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nullptr
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};
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tr_error* error = nullptr;
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auto const ret = tr_spawn_async(args.data(), nullptr, nullptr, &error);
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EXPECT_FALSE(ret);
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EXPECT_NE(nullptr, error);
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EXPECT_NE(0, error->code);
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EXPECT_NE(nullptr, error->message);
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tr_error_clear(&error);
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}
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TEST_P(SubprocessTest, SpawnAsyncArgs)
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{
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auto const result_path = buildSandboxPath("result.txt");
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bool const allow_batch_metachars = TR_IF_WIN32(false, true) || !tr_str_has_suffix(self_path_.c_str(), ".cmd");
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auto const test_arg1 = std::string { "arg1 " };
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auto const test_arg2 = std::string { " arg2" };
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auto const test_arg3 = std::string {};
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auto const test_arg4 = std::string { "\"arg3'^! $PATH %PATH% \\" };
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auto args = std::array<char*, 8>{
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// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
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tr_strdup(self_path_.c_str()),
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tr_strdup(result_path.data()),
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tr_strdup(arg_dump_args_.data()),
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tr_strdup(test_arg1.data()),
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tr_strdup(test_arg2.data()),
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tr_strdup(test_arg3.data()),
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tr_strdup(allow_batch_metachars ? test_arg4.data() : nullptr),
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nullptr
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};
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tr_error* error = nullptr;
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bool const ret = tr_spawn_async(args.data(), nullptr, nullptr, &error);
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EXPECT_TRUE(ret) << args[0] << ' ' << args[1];
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EXPECT_EQ(nullptr, error) << error->code << ", " << error->message;
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waitForFileToExist(result_path);
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auto fd = tr_sys_file_open(result_path.data(), TR_SYS_FILE_READ, 0, nullptr); // NOLINT
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EXPECT_NE(TR_BAD_SYS_FILE, fd);
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auto buffer = std::array<char, 1024>{};
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_arg1, buffer.data());
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_arg2, buffer.data());
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_arg3, buffer.data());
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if (allow_batch_metachars)
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{
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_arg4, buffer.data());
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}
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EXPECT_FALSE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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tr_sys_file_close(fd, nullptr);
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}
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TEST_P(SubprocessTest, SpawnAsyncEnv)
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{
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auto const result_path = buildSandboxPath("result.txt");
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auto const test_env_key1 = std::string { "VAR1" };
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auto const test_env_key2 = std::string { "_VAR_2_" };
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auto const test_env_key3 = std::string { "vAr#" };
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auto const test_env_key4 = std::string { "FOO" };
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auto const test_env_key5 = std::string { "ZOO" };
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auto const test_env_key6 = std::string { "TR_MISSING_TEST_ENV_KEY" };
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auto const test_env_value1 = std::string { "value1 " };
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auto const test_env_value2 = std::string { " value2" };
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auto const test_env_value3 = std::string { " \"value3'^! $PATH %PATH% " };
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auto const test_env_value4 = std::string { "bar" };
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auto const test_env_value5 = std::string { "jar" };
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auto args = std::array<char*, 10>{
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// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
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tr_strdup(self_path_.c_str()),
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tr_strdup(result_path.data()),
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tr_strdup(arg_dump_env_.data()),
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tr_strdup(test_env_key1.data()),
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tr_strdup(test_env_key2.data()),
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tr_strdup(test_env_key3.data()),
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tr_strdup(test_env_key4.data()),
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tr_strdup(test_env_key5.data()),
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tr_strdup(test_env_key6.data()),
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nullptr
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};
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auto env = std::array<char*, 5>{
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// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
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tr_strdup_printf("%s=%s", test_env_key1.data(), test_env_value1.data()),
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tr_strdup_printf("%s=%s", test_env_key2.data(), test_env_value2.data()),
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tr_strdup_printf("%s=%s", test_env_key3.data(), test_env_value3.data()),
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tr_strdup_printf("%s=%s", test_env_key5.data(), test_env_value5.data()),
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nullptr
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};
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setenv("FOO", "bar", true); // inherited
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setenv("ZOO", "tar", true); // overridden
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tr_error* error = nullptr;
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bool const ret = tr_spawn_async(args.data(), env.data(), nullptr, &error);
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EXPECT_TRUE(ret);
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EXPECT_EQ(nullptr, error);
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waitForFileToExist(result_path);
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auto fd = tr_sys_file_open(result_path.data(), TR_SYS_FILE_READ, 0, nullptr); // NOLINT
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EXPECT_NE(TR_BAD_SYS_FILE, fd);
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auto buffer = std::array<char, 1024>{};
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_env_value1, buffer.data());
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_env_value2, buffer.data());
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_env_value3, buffer.data());
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_env_value4, buffer.data());
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(test_env_value5, buffer.data());
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_STREQ("<null>", buffer.data());
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EXPECT_FALSE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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tr_sys_file_close(fd, nullptr);
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for (auto& env_item : env)
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{
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tr_free(env_item);
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}
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}
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TEST_P(SubprocessTest, SpawnAsyncCwdExplicit)
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{
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auto const test_dir = sandbox_.path();
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auto const result_path = buildSandboxPath("result.txt");
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auto args = std::array<char*, 4>{
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// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
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tr_strdup(self_path_.c_str()),
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tr_strdup(result_path.data()),
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tr_strdup(arg_dump_cwd_.data()),
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nullptr
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};
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tr_error* error = nullptr;
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bool const ret = tr_spawn_async(args.data(), nullptr, test_dir.c_str(), &error);
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EXPECT_TRUE(ret);
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EXPECT_EQ(nullptr, error);
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waitForFileToExist(result_path);
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auto fd = tr_sys_file_open(result_path.data(), TR_SYS_FILE_READ, 0, nullptr); // NOLINT
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EXPECT_NE(TR_BAD_SYS_FILE, fd);
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auto buffer = std::array<char, 1024>{};
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(makeString(tr_sys_path_native_separators(tr_strdup(test_dir.c_str()))),
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tr_sys_path_native_separators(&buffer.front()));
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EXPECT_FALSE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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tr_sys_file_close(fd, nullptr);
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}
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TEST_P(SubprocessTest, SpawnAsyncCwdInherit)
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{
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auto const result_path = buildSandboxPath("result.txt");
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auto const expected_cwd = nativeCwd();
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auto args = std::array<char*, 4>{
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// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
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tr_strdup(self_path_.c_str()),
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tr_strdup(result_path.data()),
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tr_strdup(arg_dump_cwd_.data()),
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nullptr
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};
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tr_error* error = nullptr;
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auto const ret = tr_spawn_async(args.data(), nullptr, nullptr, &error);
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EXPECT_TRUE(ret);
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EXPECT_EQ(nullptr, error);
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waitForFileToExist(result_path);
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auto fd = tr_sys_file_open(result_path.data(), TR_SYS_FILE_READ, 0, nullptr); // NOLINT
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EXPECT_NE(TR_BAD_SYS_FILE, fd);
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auto buffer = std::array<char, 1024>{};
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EXPECT_TRUE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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EXPECT_EQ(expected_cwd, tr_sys_path_native_separators(&buffer.front()));
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EXPECT_FALSE(tr_sys_file_read_line(fd, buffer.data(), buffer.size(), nullptr));
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tr_sys_file_close(fd, nullptr);
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}
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TEST_P(SubprocessTest, SpawnAsyncCwdMissing)
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{
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auto const result_path = buildSandboxPath("result.txt");
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auto args = std::array<char*, 4>{
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// FIXME(ckerr): remove tr_strdup()s after https://github.com/transmission/transmission/issues/1384
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tr_strdup(self_path_.c_str()),
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tr_strdup(result_path.data()),
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tr_strdup(arg_dump_cwd_.data()),
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nullptr
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};
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tr_error* error = nullptr;
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auto const ret = tr_spawn_async(args.data(), nullptr, TR_IF_WIN32("C:\\", "/") "tr-missing-test-work-dir", &error);
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EXPECT_FALSE(ret);
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EXPECT_NE(nullptr, error);
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EXPECT_NE(0, error->code);
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EXPECT_NE(nullptr, error->message);
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tr_error_clear(&error);
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}
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#ifdef _WIN32
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INSTANTIATE_TEST_SUITE_P(
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Subprocess,
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SubprocessTest,
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::testing::Values(getSelfPath(), getCmdSelfPath())
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);
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#else
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INSTANTIATE_TEST_SUITE_P(
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Subprocess,
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SubprocessTest,
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::testing::Values(getSelfPath())
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);
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#endif
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} // namespace test
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} // namespace libtransmission
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