catch2/projects/SelfTest/ExceptionTests.cpp

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/*
* Created by Phil on 09/11/2010.
* Copyright 2010 Two Blue Cubes Ltd. All rights reserved.
*
* 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)
*/
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#include "catch.hpp"
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#include <string>
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#include <stdexcept>
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#include "catch_self_test.hpp"
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namespace
{
CATCH_ATTRIBUTE_NORETURN
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int thisThrows();
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int thisThrows()
{
throw std::domain_error( "expected exception" );
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/*NOTREACHED*/
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}
int thisDoesntThrow()
{
return 0;
}
}
TEST_CASE( "./succeeding/exceptions/explicit", "When checked exceptions are thrown they can be expected or unexpected" )
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{
REQUIRE_THROWS_AS( thisThrows(), std::domain_error );
REQUIRE_NOTHROW( thisDoesntThrow() );
REQUIRE_THROWS( thisThrows() );
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}
CATCH_ATTRIBUTE_NORETURN
TEST_CASE( "./failing/exceptions/explicit", "When checked exceptions are thrown they can be expected or unexpected" )
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{
CHECK_THROWS_AS( thisThrows(), std::string );
CHECK_THROWS_AS( thisDoesntThrow(), std::domain_error );
CHECK_NOTHROW( thisThrows() );
}
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TEST_CASE_NORETURN( "./failing/exceptions/implicit", "When unchecked exceptions are thrown they are always failures" )
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{
throw std::domain_error( "unexpected exception" );
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/*NOTREACHED*/
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}
TEST_CASE_NORETURN( "./failing/exceptions/implicit/2", "An unchecked exception reports the line of the last assertion" )
{
CHECK( 1 == 1 );
throw std::domain_error( "unexpected exception" );
/*NOTREACHED*/
}
TEST_CASE( "./failing/exceptions/implicit/3", "When unchecked exceptions are thrown they are always failures" )
{
SECTION( "section name", "" )
{
throw std::domain_error( "unexpected exception" );
/*NOTREACHED*/
}
}
TEST_CASE_NORETURN( "./failing/exceptions/implicit/4", "When unchecked exceptions are thrown they are always failures" )
{
CHECK( thisThrows() == 0 );
/*NOTREACHED*/
}
TEST_CASE( "./succeeding/exceptions/implicit", "When unchecked exceptions are thrown, but caught, they do not affect the test" )
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{
try
{
throw std::domain_error( "unexpected exception" );
}
catch(...)
{
}
}
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class CustomException
{
public:
CustomException( const std::string& msg )
: m_msg( msg )
{}
std::string getMessage() const
{
return m_msg;
}
private:
std::string m_msg;
};
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CATCH_TRANSLATE_EXCEPTION( CustomException& ex )
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{
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return ex.getMessage();
}
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CATCH_TRANSLATE_EXCEPTION( double& ex )
{
return Catch::toString( ex );
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}
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TEST_CASE_NORETURN( "./failing/exceptions/custom", "Unexpected custom exceptions can be translated" )
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{
throw CustomException( "custom exception" );
}
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#ifdef _MSC_VER
#pragma warning(disable:4702) // unreachable code
#endif
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TEST_CASE( "./failing/exceptions/custom/nothrow", "Custom exceptions can be translated when testing for nothrow" )
{
REQUIRE_NOTHROW( throw CustomException( "unexpected custom exception" ) );
}
TEST_CASE( "./failing/exceptions/custom/throw", "Custom exceptions can be translated when testing for throwing as something else" )
{
REQUIRE_THROWS_AS( throw CustomException( "custom exception - not std" ), std::exception );
}
TEST_CASE_NORETURN( "./failing/exceptions/custom/double", "Unexpected custom exceptions can be translated" )
{
throw double( 3.14 );
}
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inline int thisFunctionNotImplemented( int ) {
CATCH_NOT_IMPLEMENTED;
}
TEST_CASE( "./succeeding/exceptions/notimplemented", "" )
{
REQUIRE_THROWS( thisFunctionNotImplemented( 7 ) );
}