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//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++98, c++03
// <filesystem>
// path canonical(const path& p);
// path canonical(const path& p, error_code& ec);
#include "filesystem_include.hpp"
#include <type_traits>
#include <cassert>
#include "test_macros.h"
#include "rapid-cxx-test.hpp"
#include "filesystem_test_helper.hpp"
using namespace fs;
struct CWDGuard {
path OldCWD;
CWDGuard() : OldCWD(fs::current_path()) { }
~CWDGuard() { fs::current_path(OldCWD); }
CWDGuard(CWDGuard const&) = delete;
CWDGuard& operator=(CWDGuard const&) = delete;
};
TEST_SUITE(filesystem_canonical_path_test_suite)
TEST_CASE(signature_test)
{
const path p; ((void)p);
std::error_code ec; ((void)ec);
ASSERT_NOT_NOEXCEPT(canonical(p));
ASSERT_NOT_NOEXCEPT(canonical(p, ec));
}
// There are 4 cases is the proposal for absolute path.
// Each scope tests one of the cases.
TEST_CASE(test_canonical)
{
CWDGuard guard;
// has_root_name() && has_root_directory()
const path Root = StaticEnv::Root;
const path RootName = Root.filename();
const path DirName = StaticEnv::Dir.filename();
const path SymlinkName = StaticEnv::SymlinkToFile.filename();
struct TestCase {
path p;
path expect;
path base;
TestCase(path p1, path e, path b = StaticEnv::Root)
: p(p1), expect(e), base(b) {}
};
const TestCase testCases[] = {
{ ".", Root, Root},
{ DirName / ".." / "." / DirName, StaticEnv::Dir, Root},
{ StaticEnv::Dir2 / "..", StaticEnv::Dir },
{ StaticEnv::Dir3 / "../..", StaticEnv::Dir },
{ StaticEnv::Dir / ".", StaticEnv::Dir },
{ Root / "." / DirName / ".." / DirName, StaticEnv::Dir},
{ path("..") / "." / RootName / DirName / ".." / DirName, StaticEnv::Dir, Root},
{ StaticEnv::SymlinkToFile, StaticEnv::File },
{ SymlinkName, StaticEnv::File, StaticEnv::Root}
};
for (auto& TC : testCases) {
std::error_code ec = GetTestEC();
fs::current_path(TC.base);
const path ret = canonical(TC.p, ec);
TEST_REQUIRE(!ec);
const path ret2 = canonical(TC.p);
TEST_CHECK(PathEq(ret, TC.expect));
TEST_CHECK(PathEq(ret, ret2));
TEST_CHECK(ret.is_absolute());
}
}
TEST_CASE(test_dne_path)
{
std::error_code ec = GetTestEC();
{
const path ret = canonical(StaticEnv::DNE, ec);
TEST_CHECK(ec != GetTestEC());
TEST_REQUIRE(ec);
TEST_CHECK(ret == path{});
}
{
TEST_CHECK_THROW(filesystem_error, canonical(StaticEnv::DNE));
}
}
TEST_CASE(test_exception_contains_paths)
{
#ifndef TEST_HAS_NO_EXCEPTIONS
CWDGuard guard;
const path p = "blabla/dne";
try {
canonical(p);
TEST_REQUIRE(false);
} catch (filesystem_error const& err) {
TEST_CHECK(err.path1() == p);
// libc++ provides the current path as the second path in the exception
LIBCPP_ONLY(TEST_CHECK(err.path2() == current_path()));
}
fs::current_path(StaticEnv::Dir);
try {
canonical(p);
TEST_REQUIRE(false);
} catch (filesystem_error const& err) {
TEST_CHECK(err.path1() == p);
LIBCPP_ONLY(TEST_CHECK(err.path2() == StaticEnv::Dir));
}
#endif
}
TEST_SUITE_END()
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