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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
/**\file
* Test that the captured stdout/err in (partial) testCaseEnded events
* is correct (e.g. that the partial test case event does not get accumulated
* output).
*
* This is done by having a single test case that is entered multiple
* times through generator, and a custom capturing reporter that knows
* what it should expect captured from the test case.
*/
#include <catch2/catch_test_macros.hpp>
#include <catch2/generators/catch_generators.hpp>
#include <catch2/generators/catch_generators_range.hpp>
#include <catch2/reporters/catch_reporter_streaming_base.hpp>
#include <catch2/reporters/catch_reporter_registrars.hpp>
#include <iostream>
#include <string>
#include <utility>
class TestReporter : public Catch::StreamingReporterBase {
std::string stdOutString( uint64_t iter ){
return "stdout " + std::to_string( iter ) + '\n';
}
std::string stdErrString(uint64_t iter) {
return "stderr " + std::to_string( iter ) + '\n';
}
public:
TestReporter( Catch::ReporterConfig&& _config ):
StreamingReporterBase( std::move(_config) ) {
m_preferences.shouldRedirectStdOut = true;
std::cout << "X27 - TestReporter constructed\n";
}
static std::string getDescription() {
return "X27 test reporter";
}
void testCasePartialEnded( Catch::TestCaseStats const& stats,
uint64_t iter ) override {
if ( stats.stdOut != stdOutString( iter ) ) {
std::cerr << "X27 ERROR in partial stdout\n" << stats.stdOut;
}
if ( stats.stdErr != stdErrString( iter ) ) {
std::cerr << "X27 ERROR in partial stderr\n" << stats.stdErr;
}
}
void testCaseEnded( Catch::TestCaseStats const& stats ) override {
if ( stats.stdOut != "stdout 0\nstdout 1\nstdout 2\nstdout 3\nstdout 4\nstdout 5\n" ) {
std::cerr << "X27 ERROR in full stdout\n" << stats.stdOut;
}
if ( stats.stdErr != "stderr 0\nstderr 1\nstderr 2\nstderr 3\nstderr 4\nstderr 5\n" ) {
std::cerr << "X27 ERROR in full stderr\n" << stats.stdErr;
}
}
~TestReporter() override;
};
TestReporter::~TestReporter() = default;
CATCH_REGISTER_REPORTER( "test-reporter", TestReporter )
TEST_CASE( "repeatedly entered test case" ) {
auto i = GENERATE( range(0, 6) );
std::cout << "stdout " << i << '\n';
// Switch between writing to std::cerr and std::clog just to make sure
// both are properly captured and redirected.
( ( i % 2 == 0 ) ? std::cerr : std::clog ) << "stderr " << i << '\n';
}
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