llvm-project/lldb/unittests/TestingSupport/TestUtilities.cpp

66 lines
2.3 KiB
C++

//===- TestUtilities.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 "TestUtilities.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ObjectYAML/yaml2obj.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
#include "llvm/Support/Program.h"
#include "llvm/Support/YAMLTraits.h"
#include "gtest/gtest.h"
using namespace lldb_private;
extern const char *TestMainArgv0;
std::string lldb_private::GetInputFilePath(const llvm::Twine &name) {
llvm::SmallString<128> result = llvm::sys::path::parent_path(TestMainArgv0);
llvm::sys::fs::make_absolute(result);
llvm::sys::path::append(result, "Inputs", name);
return result.str();
}
llvm::Expected<TestFile> TestFile::fromYaml(llvm::StringRef Yaml) {
const auto *Info = testing::UnitTest::GetInstance()->current_test_info();
assert(Info);
llvm::SmallString<128> Name;
int FD;
if (std::error_code EC = llvm::sys::fs::createTemporaryFile(
llvm::Twine(Info->test_case_name()) + "-" + Info->name(), "test", FD,
Name))
return llvm::errorCodeToError(EC);
llvm::FileRemover Remover(Name);
{
llvm::raw_fd_ostream OS(FD, /*shouldClose*/ true);
llvm::yaml::Input YIn(Yaml);
if (!llvm::yaml::convertYAML(YIn, OS, [](const llvm::Twine &Msg) {}))
return llvm::createStringError(llvm::inconvertibleErrorCode(),
"convertYAML() failed");
}
return TestFile(Name, std::move(Remover));
}
llvm::Expected<TestFile> TestFile::fromYamlFile(const llvm::Twine &Name) {
auto BufferOrError =
llvm::MemoryBuffer::getFile(GetInputFilePath(Name), /*FileSize*/ -1,
/*RequiresNullTerminator*/ false);
if (!BufferOrError)
return llvm::errorCodeToError(BufferOrError.getError());
return fromYaml(BufferOrError.get()->getBuffer());
}
TestFile::~TestFile() {
if (!Name)
return;
if (std::error_code EC =
llvm::sys::fs::remove(*Name, /*IgnoreNonExisting*/ false))
GTEST_LOG_(WARNING) << "Failed to delete `" << Name->c_str()
<< "`: " << EC.message();
}