Files
carbon-lang/testing/base/capture_std_streams.cpp
T
2025-04-17 15:37:57 +00:00

36 lines
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// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
// Exceptions. See /LICENSE for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#include "testing/base/capture_std_streams.h"
#include <gtest/gtest.h>
#include <fstream>
#include <sstream>
#include <string>
#include "common/ostream.h"
namespace Carbon::Testing::Internal {
// While these are marked as "internal" APIs, they seem to work and be pretty
// widely used for their exact documented behavior.
using ::testing::internal::CaptureStderr;
using ::testing::internal::CaptureStdout;
using ::testing::internal::GetCapturedStderr;
using ::testing::internal::GetCapturedStdout;
auto BeginStdStreamCapture() -> void {
CaptureStderr();
CaptureStdout();
}
auto EndStdStreamCapture(std::string& out, std::string& err) -> void {
// No need to flush stderr.
err = GetCapturedStderr();
llvm::outs().flush();
out = GetCapturedStdout();
}
} // namespace Carbon::Testing::Internal