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355b3f9952430b77cc7c0ed3e273ba453f201c07
Catch2/include/internal/catch_session.cpp
dvirtz 355b3f9952 Add option to warn when no tests ran 
Closes #1158
2018-02-09 18:49:36 +01:00

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/*
* Created by Martin on 31/08/2017.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
#include "catch_session.h"
#include "catch_commandline.h"
#include "catch_console_colour.h"
#include "catch_enforce.h"
#include "catch_list.h"
#include "catch_run_context.h"
#include "catch_stream.h"
#include "catch_test_spec.h"
#include "catch_version.h"
#include "catch_interfaces_reporter.h"
#include "catch_random_number_generator.h"
#include "catch_startup_exception_registry.h"
#include "catch_text.h"
#include "catch_stream.h"
#include <cstdlib>
#include <iomanip>
namespace Catch {
namespace {
const int MaxExitCode = 255;
IStreamingReporterPtr createReporter(std::string const& reporterName, IConfigPtr const& config) {
auto reporter = Catch::getRegistryHub().getReporterRegistry().create(reporterName, config);
CATCH_ENFORCE(reporter, "No reporter registered with name: '" << reporterName << "'");
return reporter;
}
#ifndef CATCH_CONFIG_DEFAULT_REPORTER
#define CATCH_CONFIG_DEFAULT_REPORTER "console"
#endif
IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const& config) {
auto const& reporterNames = config->getReporterNames();
if (reporterNames.empty())
return createReporter(CATCH_CONFIG_DEFAULT_REPORTER, config);
IStreamingReporterPtr reporter;
for (auto const& name : reporterNames)
addReporter(reporter, createReporter(name, config));
return reporter;
}
#undef CATCH_CONFIG_DEFAULT_REPORTER
void addListeners(IStreamingReporterPtr& reporters, IConfigPtr const& config) {
auto const& listeners = Catch::getRegistryHub().getReporterRegistry().getListeners();
for (auto const& listener : listeners)
addReporter(reporters, listener->create(Catch::ReporterConfig(config)));
}
Catch::Totals runTests(std::shared_ptr<Config> const& config) {
IStreamingReporterPtr reporter = makeReporter(config);
addListeners(reporter, config);
RunContext context(config, std::move(reporter));
Totals totals;
context.testGroupStarting(config->name(), 1, 1);
TestSpec testSpec = config->testSpec();
if (!testSpec.hasFilters())
testSpec = TestSpecParser(ITagAliasRegistry::get()).parse("~[.]").testSpec(); // All not hidden tests
auto const& allTestCases = getAllTestCasesSorted(*config);
for (auto const& testCase : allTestCases) {
if (!context.aborting() && matchTest(testCase, testSpec, *config))
totals += context.runTest(testCase);
else
context.reporter().skipTest(testCase);
}
if (config->warnAboutNoTests() && totals.testCases.total() == 0) {
ReusableStringStream testConfig;
bool first = true;
for (const auto& input : config->getTestsOrTags()) {
if (!first) { testConfig << ' '; }
first = false;
testConfig << input;
}
context.reporter().noMatchingTestCases(testConfig.str());
totals.error = -1;
}
context.testGroupEnded(config->name(), totals, 1, 1);
return totals;
}
void applyFilenamesAsTags(Catch::IConfig const& config) {
auto& tests = const_cast<std::vector<TestCase>&>(getAllTestCasesSorted(config));
for (auto& testCase : tests) {
auto tags = testCase.tags;
std::string filename = testCase.lineInfo.file;
auto lastSlash = filename.find_last_of("\\/");
if (lastSlash != std::string::npos) {
filename.erase(0, lastSlash);
filename[0] = '#';
}
auto lastDot = filename.find_last_of('.');
if (lastDot != std::string::npos) {
filename.erase(lastDot);
}
tags.push_back(std::move(filename));
setTags(testCase, tags);
}
}
} // anon namespace
Session::Session() {
static bool alreadyInstantiated = false;
if( alreadyInstantiated ) {
try { CATCH_INTERNAL_ERROR( "Only one instance of Catch::Session can ever be used" ); }
catch(...) { getMutableRegistryHub().registerStartupException(); }
}
const auto& exceptions = getRegistryHub().getStartupExceptionRegistry().getExceptions();
if ( !exceptions.empty() ) {
m_startupExceptions = true;
Colour colourGuard( Colour::Red );
Catch::cerr() << "Errors occured during startup!" << '\n';
// iterate over all exceptions and notify user
for ( const auto& ex_ptr : exceptions ) {
try {
std::rethrow_exception(ex_ptr);
} catch ( std::exception const& ex ) {
Catch::cerr() << Column( ex.what() ).indent(2) << '\n';
}
}
}
alreadyInstantiated = true;
m_cli = makeCommandLineParser( m_configData );
}
Session::~Session() {
Catch::cleanUp();
}
void Session::showHelp() const {
Catch::cout()
<< "\nCatch v" << libraryVersion() << "\n"
<< m_cli << std::endl
<< "For more detailed usage please see the project docs\n" << std::endl;
}
void Session::libIdentify() {
Catch::cout()
<< std::left << std::setw(16) << "description: " << "A Catch test executable\n"
<< std::left << std::setw(16) << "category: " << "testframework\n"
<< std::left << std::setw(16) << "framework: " << "Catch Test\n"
<< std::left << std::setw(16) << "version: " << libraryVersion() << std::endl;
}
int Session::applyCommandLine( int argc, char* argv[] ) {
if( m_startupExceptions )
return 1;
auto result = m_cli.parse( clara::Args( argc, argv ) );
if( !result ) {
Catch::cerr()
<< Colour( Colour::Red )
<< "\nError(s) in input:\n"
<< Column( result.errorMessage() ).indent( 2 )
<< "\n\n";
Catch::cerr() << "Run with -? for usage\n" << std::endl;
return MaxExitCode;
}
if( m_configData.showHelp )
showHelp();
if( m_configData.libIdentify )
libIdentify();
m_config.reset();
return 0;
}
void Session::useConfigData( ConfigData const& configData ) {
m_configData = configData;
m_config.reset();
}
int Session::run( int argc, char* argv[] ) {
if( m_startupExceptions )
return 1;
int returnCode = applyCommandLine( argc, argv );
if( returnCode == 0 )
returnCode = run();
return returnCode;
}
#if defined(WIN32) && defined(UNICODE)
int Session::run( int argc, wchar_t* const argv[] ) {
char **utf8Argv = new char *[ argc ];
for ( int i = 0; i < argc; ++i ) {
int bufSize = WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL );
utf8Argv[ i ] = new char[ bufSize ];
WideCharToMultiByte( CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL, NULL );
}
int returnCode = run( argc, utf8Argv );
for ( int i = 0; i < argc; ++i )
delete [] utf8Argv[ i ];
delete [] utf8Argv;
return returnCode;
}
#endif
int Session::run() {
if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeStart ) != 0 ) {
Catch::cout() << "...waiting for enter/ return before starting" << std::endl;
static_cast<void>(std::getchar());
}
int exitCode = runInternal();
if( ( m_configData.waitForKeypress & WaitForKeypress::BeforeExit ) != 0 ) {
Catch::cout() << "...waiting for enter/ return before exiting, with code: " << exitCode << std::endl;
static_cast<void>(std::getchar());
}
return exitCode;
}
clara::Parser const& Session::cli() const {
return m_cli;
}
void Session::cli( clara::Parser const& newParser ) {
m_cli = newParser;
}
ConfigData& Session::configData() {
return m_configData;
}
Config& Session::config() {
if( !m_config )
m_config = std::make_shared<Config>( m_configData );
return *m_config;
}
int Session::runInternal() {
if( m_startupExceptions )
return 1;
if( m_configData.showHelp || m_configData.libIdentify )
return 0;
try
{
config(); // Force config to be constructed
seedRng( *m_config );
if( m_configData.filenamesAsTags )
applyFilenamesAsTags( *m_config );
// Handle list request
if( Option<std::size_t> listed = list( config() ) )
return static_cast<int>( *listed );
auto totals = runTests( m_config );
// Note that on unices only the lower 8 bits are usually used, clamping
// the return value to 255 prevents false negative when some multiple
// of 256 tests has failed
return (std::min)( { MaxExitCode, totals.error, static_cast<int>( totals.assertions.failed ) } );
}
catch( std::exception& ex ) {
Catch::cerr() << ex.what() << std::endl;
return MaxExitCode;
}
}
} // end namespace Catch
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