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android_external_libcxx/test/std/experimental/filesystem/fs.op.funcs/fs.op.rename/rename.pass.cpp
Eric Fiselier f1471a367b Make filesystem tests generic between experimental and std versions.
As I move towards implementing std::filesystem, there is a need to
make the existing tests run against both the std and experimental versions.
Additionally, it's helpful to allow running the tests against other
implementations of filesystem.

This patch converts the test to easily target either. First, it
adds a filesystem_include.hpp header which is soley responsible
for selecting and including the correct implementation. Second,
it converts existing tests to use this header instead of including
filesystem directly.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@328475 91177308-0d34-0410-b5e6-96231b3b80d8
2018-03-26 05:46:57 +00:00

126 lines
3.7 KiB
C++

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