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//===-- FileCollectorTest.cpp -----------------------------------*- C++ -*-===//
//
// 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 "gmock/gmock.h"
#include "gtest/gtest.h"
#include "lldb/Utility/FileCollector.h"
#include "lldb/Utility/FileSpec.h"
#include "llvm/Support/FileSystem.h"
using namespace llvm;
using namespace lldb_private;
namespace llvm {
namespace vfs {
inline bool operator==(const llvm::vfs::YAMLVFSEntry &LHS,
const llvm::vfs::YAMLVFSEntry &RHS) {
return LHS.VPath == RHS.VPath && LHS.RPath == RHS.RPath;
}
} // namespace vfs
} // namespace llvm
namespace {
class TestingFileCollector : public FileCollector {
public:
using FileCollector::FileCollector;
using FileCollector::m_root;
using FileCollector::m_seen;
using FileCollector::m_symlink_map;
using FileCollector::m_vfs_writer;
bool HasSeen(FileSpec fs) {
return m_seen.find(fs.GetPath()) != m_seen.end();
}
};
struct ScopedDir {
SmallString<128> Path;
ScopedDir(const Twine &Name, bool Unique = false) {
std::error_code EC;
if (Unique) {
EC = llvm::sys::fs::createUniqueDirectory(Name, Path);
} else {
Path = Name.str();
EC = llvm::sys::fs::create_directory(Twine(Path));
}
if (EC)
Path = "";
EXPECT_FALSE(EC);
// Ensure the path is the real path so tests can use it to compare against
// realpath output.
SmallString<128> RealPath;
if (!llvm::sys::fs::real_path(Path, RealPath))
Path.swap(RealPath);
}
~ScopedDir() {
if (Path != "") {
EXPECT_FALSE(llvm::sys::fs::remove_directories(Path.str()));
}
}
operator StringRef() { return Path.str(); }
};
struct ScopedLink {
SmallString<128> Path;
ScopedLink(const Twine &To, const Twine &From) {
Path = From.str();
std::error_code EC = sys::fs::create_link(To, From);
if (EC)
Path = "";
EXPECT_FALSE(EC);
}
~ScopedLink() {
if (Path != "") {
EXPECT_FALSE(llvm::sys::fs::remove(Path.str()));
}
}
operator StringRef() { return Path.str(); }
};
struct ScopedFile {
SmallString<128> Path;
ScopedFile(const Twine &Name) {
std::error_code EC;
EC = llvm::sys::fs::createUniqueFile(Name, Path);
if (EC)
Path = "";
EXPECT_FALSE(EC);
}
~ScopedFile() {
if (Path != "") {
EXPECT_FALSE(llvm::sys::fs::remove(Path.str()));
}
}
operator StringRef() { return Path.str(); }
};
} // end anonymous namespace
TEST(FileCollectorTest, AddFile) {
ScopedDir root("add_file_root", true);
FileSpec root_fs(root.Path);
TestingFileCollector file_collector(root_fs, root_fs);
file_collector.AddFile(FileSpec("/path/to/a"));
file_collector.AddFile(FileSpec("/path/to/b"));
file_collector.AddFile(FileSpec("/path/to/c"));
// Make sure the root is correct.
EXPECT_EQ(file_collector.m_root, root_fs);
// Make sure we've seen all the added files.
EXPECT_TRUE(file_collector.HasSeen(FileSpec("/path/to/a")));
EXPECT_TRUE(file_collector.HasSeen(FileSpec("/path/to/b")));
EXPECT_TRUE(file_collector.HasSeen(FileSpec("/path/to/c")));
// Make sure we've only seen the added files.
EXPECT_FALSE(file_collector.HasSeen(FileSpec("/path/to/d")));
}
TEST(FileCollectorTest, CopyFiles) {
ScopedDir file_root("file_root", true);
ScopedFile a(file_root + "/aaa");
ScopedFile b(file_root + "/bbb");
ScopedFile c(file_root + "/ccc");
// Create file collector and add files.
ScopedDir root("copy_files_root", true);
FileSpec root_fs(root.Path);
TestingFileCollector file_collector(root_fs, root_fs);
file_collector.AddFile(a.Path);
file_collector.AddFile(b.Path);
file_collector.AddFile(c.Path);
// Make sure we can copy the files.
std::error_code ec = file_collector.CopyFiles(true);
EXPECT_FALSE(ec);
// Now add a bogus file and make sure we error out.
file_collector.AddFile("/some/bogus/file");
ec = file_collector.CopyFiles(true);
EXPECT_TRUE(ec);
// However, if stop_on_error is true the copy should still succeed.
ec = file_collector.CopyFiles(false);
EXPECT_FALSE(ec);
}
#ifndef _WIN32
TEST(FileCollectorTest, Symlinks) {
// Root where the original files live.
ScopedDir file_root("file_root", true);
// Create some files in the file root.
ScopedFile a(file_root + "/aaa");
ScopedFile b(file_root + "/bbb");
ScopedFile c(file_root + "/ccc");
// Create a directory foo with file ddd.
ScopedDir foo(file_root + "/foo");
ScopedFile d(foo + "/ddd");
// Create a file eee in the foo's parent directory.
ScopedFile e(foo + "/../eee");
// Create a symlink bar pointing to foo.
ScopedLink symlink(file_root + "/foo", file_root + "/bar");
// Root where files are copied to.
ScopedDir reproducer_root("reproducer_root", true);
FileSpec root_fs(reproducer_root.Path);
TestingFileCollector file_collector(root_fs, root_fs);
// Add all the files to the collector.
file_collector.AddFile(a.Path);
file_collector.AddFile(b.Path);
file_collector.AddFile(c.Path);
file_collector.AddFile(d.Path);
file_collector.AddFile(e.Path);
file_collector.AddFile(file_root + "/bar/ddd");
auto mapping = file_collector.m_vfs_writer.getMappings();
{
// Make sure the common case works.
std::string vpath = (file_root + "/aaa").str();
std::string rpath = (reproducer_root.Path + file_root.Path + "/aaa").str();
printf("%s -> %s\n", vpath.c_str(), rpath.c_str());
EXPECT_THAT(mapping, testing::Contains(vfs::YAMLVFSEntry(vpath, rpath)));
}
{
// Make sure the virtual path points to the real source path.
std::string vpath = (file_root + "/bar/ddd").str();
std::string rpath =
(reproducer_root.Path + file_root.Path + "/foo/ddd").str();
printf("%s -> %s\n", vpath.c_str(), rpath.c_str());
EXPECT_THAT(mapping, testing::Contains(vfs::YAMLVFSEntry(vpath, rpath)));
}
{
// Make sure that .. is removed from the source path.
std::string vpath = (file_root + "/eee").str();
std::string rpath = (reproducer_root.Path + file_root.Path + "/eee").str();
printf("%s -> %s\n", vpath.c_str(), rpath.c_str());
EXPECT_THAT(mapping, testing::Contains(vfs::YAMLVFSEntry(vpath, rpath)));
}
}
#endif
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