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// Copyright Catch2 Authors
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE.txt or copy at
// https://www.boost.org/LICENSE_1_0.txt)
// SPDX-License-Identifier: BSL-1.0
#include <catch2/catch_test_macros.hpp>
#include <catch2/internal/catch_console_colour.hpp>
#include <catch2/internal/catch_istream.hpp>
#include <sstream>
namespace {
class TestColourImpl : public Catch::ColourImpl {
using Catch::ColourImpl::ColourImpl;
// Inherited via ColourImpl
void use( Catch::Colour::Code colourCode ) const override {
m_stream->stream() << "Using code: " << colourCode << '\n';
}
};
class TestStringStream : public Catch::IStream {
std::stringstream m_stream;
public:
std::ostream& stream() override {
return m_stream;
}
std::string str() const { return m_stream.str(); }
};
}
TEST_CASE("ColourGuard behaviour", "[console-colours]") {
TestStringStream streamWrapper;
TestColourImpl colourImpl( &streamWrapper );
auto& stream = streamWrapper.stream();
SECTION("ColourGuard is disengaged by default") {
{ auto guard = colourImpl.guardColour( Catch::Colour::Red ); }
REQUIRE( streamWrapper.str().empty() );
}
SECTION("ColourGuard is engaged by op<<") {
stream << "1\n" << colourImpl.guardColour( Catch::Colour::Red ) << "2\n";
stream << "3\n";
REQUIRE( streamWrapper.str() == "1\nUsing code: 2\n2\nUsing code: 0\n3\n" );
}
SECTION("ColourGuard can be engaged explicitly") {
{
auto guard =
colourImpl.guardColour( Catch::Colour::Red ).engage( stream );
stream << "A\n"
<< "B\n";
}
stream << "C\n";
REQUIRE( streamWrapper.str() ==
"Using code: 2\nA\nB\nUsing code: 0\nC\n" );
}
}
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