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//===-- RealpathPrefixesTest.cpp
//--------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
#include "gtest/gtest.h"
#include "MockSymlinkFileSystem.h"
#include "lldb/Utility/FileSpecList.h"
#include "lldb/Utility/RealpathPrefixes.h"
using namespace lldb_private;
static FileSpec PosixSpec(llvm::StringRef path) {
return FileSpec(path, FileSpec::Style::posix);
}
static FileSpec WindowsSpec(llvm::StringRef path) {
return FileSpec(path, FileSpec::Style::windows);
}
// Should resolve a symlink which match an absolute prefix
TEST(RealpathPrefixesTest, MatchingAbsolutePrefix) {
// Prepare FS
llvm::IntrusiveRefCntPtr<MockSymlinkFileSystem> fs(new MockSymlinkFileSystem(
PosixSpec("/dir1/link.h"), PosixSpec("/dir2/real.h"),
FileSpec::Style::posix));
// Prepare RealpathPrefixes
FileSpecList file_spec_list;
file_spec_list.Append(PosixSpec("/dir1"));
RealpathPrefixes prefixes(file_spec_list, fs);
// Test
std::optional<FileSpec> ret =
prefixes.ResolveSymlinks(PosixSpec("/dir1/link.h"));
EXPECT_EQ(ret, PosixSpec("/dir2/real.h"));
}
// Should resolve a symlink which match a relative prefix
TEST(RealpathPrefixesTest, MatchingRelativePrefix) {
// Prepare FS
llvm::IntrusiveRefCntPtr<MockSymlinkFileSystem> fs(new MockSymlinkFileSystem(
PosixSpec("dir1/link.h"), PosixSpec("dir2/real.h"),
FileSpec::Style::posix));
// Prepare RealpathPrefixes
FileSpecList file_spec_list;
file_spec_list.Append(PosixSpec("dir1"));
RealpathPrefixes prefixes(file_spec_list, fs);
// Test
std::optional<FileSpec> ret =
prefixes.ResolveSymlinks(PosixSpec("dir1/link.h"));
EXPECT_EQ(ret, PosixSpec("dir2/real.h"));
}
// Should resolve in Windows and/or with a case-insensitive support file
TEST(RealpathPrefixesTest, WindowsAndCaseInsensitive) {
// Prepare FS
llvm::IntrusiveRefCntPtr<MockSymlinkFileSystem> fs(new MockSymlinkFileSystem(
WindowsSpec("f:\\dir1\\link.h"), WindowsSpec("f:\\dir2\\real.h"),
FileSpec::Style::windows));
// Prepare RealpathPrefixes
FileSpecList file_spec_list;
file_spec_list.Append(WindowsSpec("f:\\dir1"));
RealpathPrefixes prefixes(file_spec_list, fs);
// Test
std::optional<FileSpec> ret =
prefixes.ResolveSymlinks(WindowsSpec("F:\\DIR1\\LINK.H"));
EXPECT_EQ(ret, WindowsSpec("f:\\dir2\\real.h"));
}
// Should resolve a symlink when there is mixture of matching and mismatching
// prefixex
TEST(RealpathPrefixesTest, MatchingAndMismatchingPrefix) {
// Prepare FS
llvm::IntrusiveRefCntPtr<MockSymlinkFileSystem> fs(new MockSymlinkFileSystem(
PosixSpec("/dir1/link.h"), PosixSpec("/dir2/real.h"),
FileSpec::Style::posix));
// Prepare RealpathPrefixes
FileSpecList file_spec_list;
file_spec_list.Append(PosixSpec("/fake/path1"));
file_spec_list.Append(PosixSpec("/dir1")); // Matching prefix
file_spec_list.Append(PosixSpec("/fake/path2"));
RealpathPrefixes prefixes(file_spec_list, fs);
// Test
std::optional<FileSpec> ret =
prefixes.ResolveSymlinks(PosixSpec("/dir1/link.h"));
EXPECT_EQ(ret, PosixSpec("/dir2/real.h"));
}
// Should resolve a symlink when the prefixes matches after normalization
TEST(RealpathPrefixesTest, ComplexPrefixes) {
// Prepare FS
llvm::IntrusiveRefCntPtr<MockSymlinkFileSystem> fs(new MockSymlinkFileSystem(
PosixSpec("dir1/link.h"), PosixSpec("dir2/real.h"),
FileSpec::Style::posix));
// Prepare RealpathPrefixes
FileSpecList file_spec_list;
file_spec_list.Append(
PosixSpec("./dir1/foo/../bar/..")); // Equivalent to "/dir1"
RealpathPrefixes prefixes(file_spec_list, fs);
// Test
std::optional<FileSpec> ret =
prefixes.ResolveSymlinks(PosixSpec("dir1/link.h"));
EXPECT_EQ(ret, PosixSpec("dir2/real.h"));
}
// Should not resolve a symlink which doesn't match any prefixes
TEST(RealpathPrefixesTest, MismatchingPrefixes) {
// Prepare FS
llvm::IntrusiveRefCntPtr<MockSymlinkFileSystem> fs(new MockSymlinkFileSystem(
PosixSpec("/dir1/link.h"), PosixSpec("/dir2/real.h"),
FileSpec::Style::posix));
// Prepare RealpathPrefixes
FileSpecList file_spec_list;
file_spec_list.Append(PosixSpec("/dir3"));
RealpathPrefixes prefixes(file_spec_list, fs);
// Test
std::optional<FileSpec> ret =
prefixes.ResolveSymlinks(PosixSpec("/dir1/link.h"));
EXPECT_EQ(ret, std::nullopt);
}
// Should not resolve a realpath
TEST(RealpathPrefixesTest, Realpath) {
// Prepare FS
llvm::IntrusiveRefCntPtr<MockSymlinkFileSystem> fs(
new MockSymlinkFileSystem());
// Prepare RealpathPrefixes
FileSpecList file_spec_list;
file_spec_list.Append(PosixSpec("/symlink_dir"));
RealpathPrefixes prefixes(file_spec_list, fs);
// Test
std::optional<FileSpec> ret =
prefixes.ResolveSymlinks(PosixSpec("/dir/real.h"));
EXPECT_EQ(ret, std::nullopt);
}
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