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https://github.com/catchorg/Catch2.git
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ce2560ca95
Changes done to Nonius: * Moved things into "Catch::Benchmark" namespace * Benchmarks were integrated with `TEST_CASE`/`SECTION`/`GENERATE` macros * Removed Nonius's parameters for benchmarks, Generators should be used instead * Added relevant methods to the reporter interface (default-implemented, to avoid breaking existing 3rd party reporters) * Async processing is guarded with `_REENTRANT` macro for GCC/Clang, used by default on MSVC * Added a macro `CATCH_CONFIG_DISABLE_BENCHMARKING` that removes all traces of benchmarking from Catch
188 lines
5.8 KiB
C++
188 lines
5.8 KiB
C++
/*
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* Created by Phil on 17/01/2011.
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* Copyright 2011 Two Blue Cubes Ltd. All rights reserved.
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*
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* Distributed under the Boost Software License, Version 1.0. (See accompanying
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* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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*
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*/
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#include "catch_common.h"
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#include "catch_enforce.h"
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#include "catch_stream.h"
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#include "catch_debug_console.h"
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#include "catch_stringref.h"
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#include "catch_singletons.hpp"
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#include <cstdio>
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#include <iostream>
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#include <fstream>
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#include <sstream>
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#include <vector>
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#include <memory>
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namespace Catch {
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Catch::IStream::~IStream() = default;
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namespace Detail { namespace {
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template<typename WriterF, std::size_t bufferSize=256>
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class StreamBufImpl : public std::streambuf {
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char data[bufferSize];
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WriterF m_writer;
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public:
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StreamBufImpl() {
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setp( data, data + sizeof(data) );
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}
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~StreamBufImpl() noexcept {
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StreamBufImpl::sync();
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}
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private:
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int overflow( int c ) override {
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sync();
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if( c != EOF ) {
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if( pbase() == epptr() )
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m_writer( std::string( 1, static_cast<char>( c ) ) );
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else
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sputc( static_cast<char>( c ) );
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}
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return 0;
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}
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int sync() override {
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if( pbase() != pptr() ) {
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m_writer( std::string( pbase(), static_cast<std::string::size_type>( pptr() - pbase() ) ) );
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setp( pbase(), epptr() );
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}
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return 0;
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}
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};
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///////////////////////////////////////////////////////////////////////////
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struct OutputDebugWriter {
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void operator()( std::string const&str ) {
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writeToDebugConsole( str );
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}
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};
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///////////////////////////////////////////////////////////////////////////
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class FileStream : public IStream {
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mutable std::ofstream m_ofs;
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public:
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FileStream( StringRef filename ) {
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m_ofs.open( filename.c_str() );
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CATCH_ENFORCE( !m_ofs.fail(), "Unable to open file: '" << filename << "'" );
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}
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~FileStream() override = default;
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public: // IStream
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std::ostream& stream() const override {
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return m_ofs;
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}
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};
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///////////////////////////////////////////////////////////////////////////
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class CoutStream : public IStream {
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mutable std::ostream m_os;
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public:
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// Store the streambuf from cout up-front because
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// cout may get redirected when running tests
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CoutStream() : m_os( Catch::cout().rdbuf() ) {}
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~CoutStream() override = default;
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public: // IStream
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std::ostream& stream() const override { return m_os; }
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};
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///////////////////////////////////////////////////////////////////////////
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class DebugOutStream : public IStream {
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std::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
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mutable std::ostream m_os;
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public:
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DebugOutStream()
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: m_streamBuf( new StreamBufImpl<OutputDebugWriter>() ),
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m_os( m_streamBuf.get() )
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{}
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~DebugOutStream() override = default;
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public: // IStream
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std::ostream& stream() const override { return m_os; }
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};
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}} // namespace anon::detail
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///////////////////////////////////////////////////////////////////////////
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auto makeStream( StringRef const &filename ) -> IStream const* {
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if( filename.empty() )
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return new Detail::CoutStream();
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else if( filename[0] == '%' ) {
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if( filename == "%debug" )
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return new Detail::DebugOutStream();
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else
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CATCH_ERROR( "Unrecognised stream: '" << filename << "'" );
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}
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else
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return new Detail::FileStream( filename );
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}
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// This class encapsulates the idea of a pool of ostringstreams that can be reused.
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struct StringStreams {
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std::vector<std::unique_ptr<std::ostringstream>> m_streams;
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std::vector<std::size_t> m_unused;
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std::ostringstream m_referenceStream; // Used for copy state/ flags from
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auto add() -> std::size_t {
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if( m_unused.empty() ) {
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m_streams.push_back( std::unique_ptr<std::ostringstream>( new std::ostringstream ) );
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return m_streams.size()-1;
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}
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else {
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auto index = m_unused.back();
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m_unused.pop_back();
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return index;
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}
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}
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void release( std::size_t index ) {
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m_streams[index]->copyfmt( m_referenceStream ); // Restore initial flags and other state
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m_unused.push_back(index);
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}
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};
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ReusableStringStream::ReusableStringStream()
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: m_index( Singleton<StringStreams>::getMutable().add() ),
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m_oss( Singleton<StringStreams>::getMutable().m_streams[m_index].get() )
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{}
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ReusableStringStream::~ReusableStringStream() {
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static_cast<std::ostringstream*>( m_oss )->str("");
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m_oss->clear();
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Singleton<StringStreams>::getMutable().release( m_index );
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}
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auto ReusableStringStream::str() const -> std::string {
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return static_cast<std::ostringstream*>( m_oss )->str();
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}
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///////////////////////////////////////////////////////////////////////////
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#ifndef CATCH_CONFIG_NOSTDOUT // If you #define this you must implement these functions
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std::ostream& cout() { return std::cout; }
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std::ostream& cerr() { return std::cerr; }
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std::ostream& clog() { return std::clog; }
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#endif
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}
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