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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++03, c++11, c++14
// UNSUPPORTED: no-filesystem
// UNSUPPORTED: availability-filesystem-missing
// <filesystem>
// path proximate(const path& p, error_code &ec)
// path proximate(const path& p, const path& base = current_path())
// path proximate(const path& p, const path& base, error_code& ec);
#include <filesystem>
#include <cassert>
#include "assert_macros.h"
#include "concat_macros.h"
#include "test_macros.h"
#include "count_new.h"
#include "filesystem_test_helper.h"
#include "../../class.path/path_helper.h"
namespace fs = std::filesystem;
static int count_path_elems(const fs::path& p) {
int count = 0;
for (auto&& elem : p) {
if (elem != p.root_name() && elem != "/" && elem != "")
++count;
}
return count;
}
static void signature_test() {
using fs::path;
const path p;
((void)p);
std::error_code ec;
((void)ec);
ASSERT_NOT_NOEXCEPT(proximate(p));
ASSERT_NOT_NOEXCEPT(proximate(p, p));
ASSERT_NOT_NOEXCEPT(proximate(p, ec));
ASSERT_NOT_NOEXCEPT(proximate(p, p, ec));
}
static void basic_test() {
using fs::path;
const path cwd = fs::current_path();
const path parent_cwd = cwd.parent_path();
const path curdir = cwd.filename();
assert(!cwd.native().empty());
int cwd_depth = count_path_elems(cwd);
path dot_dot_to_root;
for (int i = 0; i < cwd_depth; ++i)
dot_dot_to_root /= "..";
path relative_cwd = cwd.native().substr(cwd.root_path().native().size());
// clang-format off
struct {
fs::path input;
fs::path base;
fs::path expect;
} TestCases[] = {
{"", "", "."},
{cwd, "a", ".."},
{parent_cwd, "a", "../.."},
{"a", cwd, "a"},
{"a", parent_cwd, curdir / "a"},
{"/", "a", dot_dot_to_root / ".."},
{"/", "a/b", dot_dot_to_root / "../.."},
{"/", "a/b/", dot_dot_to_root / "../.."},
{"a", "/", relative_cwd / "a"},
{"a/b", "/", relative_cwd / "a/b"},
{"a", "/net", ".." / relative_cwd / "a"},
#ifdef _WIN32
{"//foo/", "//foo", "//foo/"},
{"//foo", "//foo/", "//foo"},
#else
{"//foo/", "//foo", "."},
{"//foo", "//foo/", "."},
#endif
{"//foo", "//foo", "."},
{"//foo/", "//foo/", "."},
#ifdef _WIN32
{"//foo", "a", "//foo"},
{"//foo/a", "//bar", "//foo/a"},
{"//foo/a", "//bar/", "//foo/a"},
{"//foo/a", "b", "//foo/a"},
{"//foo/a", "/b", "//foo/a"},
{"//foo/a", "//bar/b", "//foo/a"},
// Using X: instead of C: to avoid influence from the CWD being under C:
{"X:/a", "X:/b", "../a"},
{"X:/a", "X:b", "X:/a"},
{"X:/a", "Y:/a", "X:/a"},
{"X:/a", "Y:/b", "X:/a"},
{"X:/a", "Y:b", "X:/a"},
{"X:a", "X:/b", "X:a"},
{"X:a", "X:b", "../a"},
{"X:a", "Y:/a", "X:a"},
{"X:a", "Y:/b", "X:a"},
{"X:a", "Y:b", "X:a"},
#else
{"//foo", "a", dot_dot_to_root / "../foo"},
{"//foo/a", "//bar", "../foo/a"},
{"//foo/a", "//bar/", "../foo/a"},
{"//foo/a", "b", dot_dot_to_root / "../foo/a"},
{"//foo/a", "/b", "../foo/a"},
{"//foo/a", "//bar/b", "../../foo/a"},
{"X:/a", "X:/b", "../a"},
{"X:/a", "X:b", "../X:/a"},
{"X:/a", "Y:/a", "../../X:/a"},
{"X:/a", "Y:/b", "../../X:/a"},
{"X:/a", "Y:b", "../X:/a"},
{"X:a", "X:/b", "../../X:a"},
{"X:a", "X:b", "../X:a"},
{"X:a", "Y:/a", "../../X:a"},
{"X:a", "Y:/b", "../../X:a"},
{"X:a", "Y:b", "../X:a"},
#endif
{"a", "a", "."},
{"a/b", "a/b", "."},
{"a/b/c/", "a/b/c/", "."},
{"//foo/a/b", "//foo/a/b", "."},
{"/a/d", "/a/b/c", "../../d"},
{"/a/b/c", "/a/d", "../b/c"},
{"a/b/c", "a", "b/c"},
{"a/b/c", "a/b/c/x/y", "../.."},
{"a/b/c", "a/b/c", "."},
{"a/b", "c/d", "../../a/b"}
};
// clang-format on
for (auto& TC : TestCases) {
std::error_code ec = GetTestEC();
fs::path p = TC.input;
const fs::path output = fs::proximate(p, TC.base, ec);
fs::path expect = TC.expect;
expect.make_preferred();
TEST_REQUIRE(!ec,
TEST_WRITE_CONCATENATED(
"Input: ", TC.input.string(), "\nBase: ", TC.base.string(), "\nExpected: ", expect.string()));
const path canon_input = fs::weakly_canonical(TC.input);
const path canon_base = fs::weakly_canonical(TC.base);
const path lexically_p = canon_input.lexically_proximate(canon_base);
TEST_REQUIRE(
PathEq(output, expect),
TEST_WRITE_CONCATENATED(
"Input: ",
TC.input.string(),
"\nBase: ",
TC.base.string(),
"\nExpected: ",
expect.string(),
"\nOutput: ",
output.string(),
"\nLex Prox: ",
lexically_p.string(),
"\nCanon Input: ",
canon_input.string(),
"\nCanon Base: ",
canon_base.string()));
}
}
int main(int, char**) {
signature_test();
basic_test();
return 0;
}
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