forked from OSchip/llvm-project
127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is dual licensed under the MIT and the University of Illinois Open
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// Source Licenses. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++98, c++03
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// <experimental/filesystem>
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// void rename(const path& old_p, const path& new_p);
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// void rename(const path& old_p, const path& new_p, error_code& ec) noexcept;
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#include <experimental/filesystem>
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#include "test_macros.h"
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#include "rapid-cxx-test.hpp"
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#include "filesystem_test_helper.hpp"
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using namespace std::experimental::filesystem;
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namespace fs = std::experimental::filesystem;
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TEST_SUITE(filesystem_rename_test_suite)
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TEST_CASE(test_signatures)
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{
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const path p; ((void)p);
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std::error_code ec; ((void)ec);
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ASSERT_SAME_TYPE(decltype(fs::rename(p, p)), void);
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ASSERT_SAME_TYPE(decltype(fs::rename(p, p, ec)), void);
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ASSERT_NOT_NOEXCEPT(fs::rename(p, p));
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ASSERT_NOEXCEPT(fs::rename(p, p, ec));
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}
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TEST_CASE(test_error_reporting)
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{
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auto checkThrow = [](path const& f, path const& t, const std::error_code& ec)
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{
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#ifndef TEST_HAS_NO_EXCEPTIONS
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try {
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fs::rename(f, t);
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return false;
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} catch (filesystem_error const& err) {
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return err.path1() == f
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&& err.path2() == t
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&& err.code() == ec;
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}
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#else
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((void)f); ((void)t); ((void)ec);
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return true;
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#endif
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};
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scoped_test_env env;
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const path dne = env.make_env_path("dne");
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const path file = env.create_file("file1", 42);
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const path dir = env.create_dir("dir1");
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struct TestCase {
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path from;
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path to;
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} cases[] = {
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{dne, dne},
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{file, dir},
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{dir, file}
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};
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for (auto& TC : cases) {
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auto from_before = status(TC.from);
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auto to_before = status(TC.to);
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std::error_code ec;
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rename(TC.from, TC.to, ec);
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TEST_REQUIRE(ec);
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TEST_CHECK(from_before.type() == status(TC.from).type());
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TEST_CHECK(to_before.type() == status(TC.to).type());
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TEST_CHECK(checkThrow(TC.from, TC.to, ec));
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}
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}
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TEST_CASE(basic_rename_test)
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{
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scoped_test_env env;
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const std::error_code set_ec = std::make_error_code(std::errc::address_in_use);
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const path file = env.create_file("file1", 42);
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{ // same file
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std::error_code ec = set_ec;
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rename(file, file, ec);
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TEST_CHECK(!ec);
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TEST_CHECK(is_regular_file(file));
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TEST_CHECK(file_size(file) == 42);
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}
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const path sym = env.create_symlink(file, "sym");
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{ // file -> symlink
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std::error_code ec = set_ec;
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rename(file, sym, ec);
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TEST_CHECK(!ec);
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TEST_CHECK(!exists(file));
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TEST_CHECK(is_regular_file(symlink_status(sym)));
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TEST_CHECK(file_size(sym) == 42);
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}
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const path file2 = env.create_file("file2", 42);
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const path file3 = env.create_file("file3", 100);
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{ // file -> file
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std::error_code ec = set_ec;
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rename(file2, file3, ec);
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TEST_CHECK(!ec);
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TEST_CHECK(!exists(file2));
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TEST_CHECK(is_regular_file(file3));
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TEST_CHECK(file_size(file3) == 42);
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}
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const path dne = env.make_env_path("dne");
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const path bad_sym = env.create_symlink(dne, "bad_sym");
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const path bad_sym_dest = env.make_env_path("bad_sym2");
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{ // bad-symlink
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std::error_code ec = set_ec;
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rename(bad_sym, bad_sym_dest, ec);
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TEST_CHECK(!ec);
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TEST_CHECK(!exists(symlink_status(bad_sym)));
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TEST_CHECK(is_symlink(bad_sym_dest));
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TEST_CHECK(read_symlink(bad_sym_dest) == dne);
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}
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}
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TEST_SUITE_END()
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