Chelsea Cassanova 388548359f
[lldb][unittest] Add call_once flag to initialize debugger (#80786)
I tried adding a new unit test to the core test
suite (https://github.com/llvm/llvm-project/pull/79533) but it broke the
test suite on AArch64 Linux due to hitting an assertion for calling
`Debugger::Initialize` more than once. When the unit test suite is
invoked as a standalone binary the test suite state is shared, and
`Debugger::Initialize` gets called in `DiagnosticEventTest.cpp` before
being called in `ProgressReportTest.cpp`.

`DiagnosticEventTest.cpp` uses a call_once flag to initialize the
debugger but it's local to that test. This commit adds a once_flag to
`TestUtilities` so that `Debugger::Initialize` can be called once by the
tests that use it.
2024-02-06 08:17:23 -08:00

50 lines
1.8 KiB
C++

//===-- TestUtilities.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 "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::once_flag TestUtilities::g_debugger_initialize_flag;
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 std::string(result.str());
}
llvm::Expected<TestFile> TestFile::fromYaml(llvm::StringRef Yaml) {
std::string Buffer;
llvm::raw_string_ostream OS(Buffer);
llvm::yaml::Input YIn(Yaml);
std::string ErrorMsg("convertYAML() failed: ");
if (!llvm::yaml::convertYAML(YIn, OS, [&ErrorMsg](const llvm::Twine &Msg) {
ErrorMsg += Msg.str();
}))
return llvm::createStringError(llvm::inconvertibleErrorCode(), ErrorMsg);
return TestFile(std::move(Buffer));
}
llvm::Expected<TestFile> TestFile::fromYamlFile(const llvm::Twine &Name) {
auto BufferOrError =
llvm::MemoryBuffer::getFile(GetInputFilePath(Name), /*IsText=*/false,
/*RequiresNullTerminator=*/false);
if (!BufferOrError)
return llvm::errorCodeToError(BufferOrError.getError());
return fromYaml(BufferOrError.get()->getBuffer());
}