278 lines
9.0 KiB
C++
278 lines
9.0 KiB
C++
//===-- FileCollectorTest.cpp -----------------------------------*- C++ -*-===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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#include "llvm/Support/FileCollector.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Testing/Support/SupportHelpers.h"
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using namespace llvm;
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using llvm::unittest::TempDir;
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using llvm::unittest::TempFile;
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using llvm::unittest::TempLink;
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namespace llvm {
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namespace vfs {
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inline bool operator==(const llvm::vfs::YAMLVFSEntry &LHS,
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const llvm::vfs::YAMLVFSEntry &RHS) {
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return LHS.VPath == RHS.VPath && LHS.RPath == RHS.RPath;
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}
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} // namespace vfs
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} // namespace llvm
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namespace {
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class TestingFileCollector : public FileCollector {
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public:
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using FileCollector::FileCollector;
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using FileCollector::Root;
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using FileCollector::Seen;
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using FileCollector::VFSWriter;
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bool hasSeen(StringRef fs) {
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return Seen.find(fs) != Seen.end();
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}
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};
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} // end anonymous namespace
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TEST(FileCollectorTest, addFile) {
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TempDir root("add_file_root", /*Unique*/ true);
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std::string root_fs(root.path());
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TestingFileCollector FileCollector(root_fs, root_fs);
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FileCollector.addFile("/path/to/a");
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FileCollector.addFile("/path/to/b");
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FileCollector.addFile("/path/to/c");
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// Make sure the root is correct.
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EXPECT_EQ(FileCollector.Root, root_fs);
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// Make sure we've seen all the added files.
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EXPECT_TRUE(FileCollector.hasSeen("/path/to/a"));
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EXPECT_TRUE(FileCollector.hasSeen("/path/to/b"));
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EXPECT_TRUE(FileCollector.hasSeen("/path/to/c"));
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// Make sure we've only seen the added files.
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EXPECT_FALSE(FileCollector.hasSeen("/path/to/d"));
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}
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TEST(FileCollectorTest, addDirectory) {
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TempDir file_root("file_root", /*Unique*/ true);
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llvm::SmallString<128> aaa(file_root.path());
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llvm::sys::path::append(aaa, "aaa");
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TempFile a(aaa.str());
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llvm::SmallString<128> bbb(file_root.path());
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llvm::sys::path::append(bbb, "bbb");
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TempFile b(bbb.str());
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llvm::SmallString<128> ccc(file_root.path());
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llvm::sys::path::append(ccc, "ccc");
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TempFile c(ccc.str());
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std::string root_fs(file_root.path());
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TestingFileCollector FileCollector(root_fs, root_fs);
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FileCollector.addDirectory(file_root.path());
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// Make sure the root is correct.
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EXPECT_EQ(FileCollector.Root, root_fs);
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// Make sure we've seen all the added files.
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EXPECT_TRUE(FileCollector.hasSeen(a.path()));
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EXPECT_TRUE(FileCollector.hasSeen(b.path()));
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EXPECT_TRUE(FileCollector.hasSeen(c.path()));
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// Make sure we've only seen the added files.
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llvm::SmallString<128> ddd(file_root.path());
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llvm::sys::path::append(ddd, "ddd");
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TempFile d(ddd);
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EXPECT_FALSE(FileCollector.hasSeen(d.path()));
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}
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TEST(FileCollectorTest, copyFiles) {
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TempDir file_root("file_root", /*Unique*/ true);
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TempFile a(file_root.path("aaa"));
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TempFile b(file_root.path("bbb"));
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TempFile c(file_root.path("ccc"));
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// Create file collector and add files.
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TempDir root("copy_files_root", /*Unique*/ true);
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std::string root_fs(root.path());
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TestingFileCollector FileCollector(root_fs, root_fs);
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FileCollector.addFile(a.path());
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FileCollector.addFile(b.path());
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FileCollector.addFile(c.path());
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// Make sure we can copy the files.
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std::error_code ec = FileCollector.copyFiles(true);
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EXPECT_FALSE(ec);
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// Now add a bogus file and make sure we error out.
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FileCollector.addFile("/some/bogus/file");
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ec = FileCollector.copyFiles(true);
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EXPECT_TRUE(ec);
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// However, if stop_on_error is true the copy should still succeed.
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ec = FileCollector.copyFiles(false);
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EXPECT_FALSE(ec);
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}
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TEST(FileCollectorTest, recordAndConstructDirectory) {
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TempDir file_root("dir_root", /*Unique*/ true);
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TempDir subdir(file_root.path("subdir"));
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TempDir subdir2(file_root.path("subdir2"));
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TempFile a(subdir2.path("a"));
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// Create file collector and add files.
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TempDir root("copy_files_root", /*Unique*/ true);
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std::string root_fs(root.path());
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TestingFileCollector FileCollector(root_fs, root_fs);
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FileCollector.addFile(a.path());
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// The empty directory isn't seen until we add it.
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EXPECT_TRUE(FileCollector.hasSeen(a.path()));
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EXPECT_FALSE(FileCollector.hasSeen(subdir.path()));
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FileCollector.addFile(subdir.path());
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EXPECT_TRUE(FileCollector.hasSeen(subdir.path()));
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// Make sure we can construct the directory.
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std::error_code ec = FileCollector.copyFiles(true);
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EXPECT_FALSE(ec);
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bool IsDirectory = false;
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llvm::SmallString<128> SubdirInRoot = root.path();
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llvm::sys::path::append(SubdirInRoot,
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llvm::sys::path::relative_path(subdir.path()));
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ec = sys::fs::is_directory(SubdirInRoot, IsDirectory);
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EXPECT_FALSE(ec);
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ASSERT_TRUE(IsDirectory);
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}
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TEST(FileCollectorTest, recordVFSAccesses) {
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TempDir file_root("dir_root", /*Unique*/ true);
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TempDir subdir(file_root.path("subdir"));
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TempDir subdir2(file_root.path("subdir2"));
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TempFile a(subdir2.path("a"));
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TempFile b(file_root.path("b"));
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TempDir subdir3(file_root.path("subdir3"));
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TempFile subdir3a(subdir3.path("aa"));
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TempDir subdir3b(subdir3.path("subdirb"));
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{ TempFile subdir3fileremoved(subdir3.path("removed")); }
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// Create file collector and add files.
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TempDir root("copy_files_root", /*Unique*/ true);
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std::string root_fs(root.path());
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auto Collector = std::make_shared<TestingFileCollector>(root_fs, root_fs);
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auto VFS =
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FileCollector::createCollectorVFS(vfs::getRealFileSystem(), Collector);
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VFS->status(a.path());
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EXPECT_TRUE(Collector->hasSeen(a.path()));
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VFS->openFileForRead(b.path());
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EXPECT_TRUE(Collector->hasSeen(b.path()));
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VFS->status(subdir.path());
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EXPECT_TRUE(Collector->hasSeen(subdir.path()));
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#ifndef _WIN32
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std::error_code EC;
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auto It = VFS->dir_begin(subdir3.path(), EC);
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EXPECT_FALSE(EC);
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EXPECT_TRUE(Collector->hasSeen(subdir3.path()));
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EXPECT_TRUE(Collector->hasSeen(subdir3a.path()));
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EXPECT_TRUE(Collector->hasSeen(subdir3b.path()));
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std::string RemovedFileName((Twine(subdir3.path("removed"))).str());
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EXPECT_FALSE(Collector->hasSeen(RemovedFileName));
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#endif
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}
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#ifndef _WIN32
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TEST(FileCollectorTest, Symlinks) {
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// Root where the original files live.
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TempDir file_root("file_root", /*Unique*/ true);
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// Create some files in the file root.
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TempFile a(file_root.path("aaa"));
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TempFile b(file_root.path("bbb"));
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TempFile c(file_root.path("ccc"));
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// Create a directory foo with file ddd.
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TempDir foo(file_root.path("foo"));
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TempFile d(foo.path("ddd"));
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// Create a file eee in the foo's parent directory.
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TempFile e(foo.path("../eee"));
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// Create a symlink bar pointing to foo.
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TempLink symlink(file_root.path("foo"), file_root.path("bar"));
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// Root where files are copied to.
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TempDir reproducer_root("reproducer_root", /*Unique*/ true);
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std::string root_fs(reproducer_root.path());
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TestingFileCollector FileCollector(root_fs, root_fs);
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// Add all the files to the collector.
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FileCollector.addFile(a.path());
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FileCollector.addFile(b.path());
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FileCollector.addFile(c.path());
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FileCollector.addFile(d.path());
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FileCollector.addFile(e.path());
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FileCollector.addFile(file_root.path() + "/bar/ddd");
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auto mapping = FileCollector.VFSWriter.getMappings();
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{
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// Make sure the common case works.
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std::string vpath = (file_root.path() + "/aaa").str();
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std::string rpath =
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(reproducer_root.path() + file_root.path() + "/aaa").str();
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printf("%s -> %s\n", vpath.c_str(), rpath.c_str());
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EXPECT_THAT(mapping, testing::Contains(vfs::YAMLVFSEntry(vpath, rpath)));
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}
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{
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// Make sure the virtual path points to the real source path.
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std::string vpath = (file_root.path() + "/bar/ddd").str();
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std::string rpath =
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(reproducer_root.path() + file_root.path() + "/foo/ddd").str();
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printf("%s -> %s\n", vpath.c_str(), rpath.c_str());
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EXPECT_THAT(mapping, testing::Contains(vfs::YAMLVFSEntry(vpath, rpath)));
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}
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{
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// Make sure that .. is removed from the source path.
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std::string vpath = (file_root.path() + "/eee").str();
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std::string rpath =
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(reproducer_root.path() + file_root.path() + "/eee").str();
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printf("%s -> %s\n", vpath.c_str(), rpath.c_str());
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EXPECT_THAT(mapping, testing::Contains(vfs::YAMLVFSEntry(vpath, rpath)));
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}
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}
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TEST(FileCollectorTest, recordVFSSymlinkAccesses) {
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TempDir file_root("dir_root", /*Unique*/ true);
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TempFile a(file_root.path("a"));
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TempLink symlink(file_root.path("a"), file_root.path("b"));
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// Create file collector and add files.
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TempDir root("copy_files_root", true);
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std::string root_fs(root.path());
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auto Collector = std::make_shared<TestingFileCollector>(root_fs, root_fs);
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auto VFS =
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FileCollector::createCollectorVFS(vfs::getRealFileSystem(), Collector);
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SmallString<256> Output;
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VFS->getRealPath(symlink.path(), Output);
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EXPECT_TRUE(Collector->hasSeen(a.path()));
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EXPECT_TRUE(Collector->hasSeen(symlink.path()));
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}
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#endif
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