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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namespace
{
inline int thisThrows()
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{
if( Catch::isTrue( true ) )
throw std::domain_error( "expected exception" );
return 1;
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}
int thisDoesntThrow()
{
return 0;
}
}
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namespace ExceptionTests
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{
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TEST_CASE( "When checked exceptions are thrown they can be expected or unexpected", "" )
{
REQUIRE_THROWS_AS( thisThrows(), std::domain_error );
REQUIRE_NOTHROW( thisDoesntThrow() );
REQUIRE_THROWS( thisThrows() );
}
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TEST_CASE( "Expected exceptions that don't throw or unexpected exceptions fail the test", "[.][failing]" )
{
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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( "When unchecked exceptions are thrown directly they are always failures", "[.][failing]" )
{
if( Catch::isTrue( true ) )
throw std::domain_error( "unexpected exception" );
}
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TEST_CASE( "An unchecked exception reports the line of the last assertion", "[.][failing]" )
{
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CHECK( 1 == 1 );
if( Catch::isTrue( true ) )
throw std::domain_error( "unexpected exception" );
}
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TEST_CASE( "When unchecked exceptions are thrown from sections they are always failures", "[.][failing]" )
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{
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SECTION( "section name", "" )
{
if( Catch::isTrue( true ) )
throw std::domain_error( "unexpected exception" );
}
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}
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TEST_CASE( "When unchecked exceptions are thrown from functions they are always failures", "[.][failing]" )
{
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CHECK( thisThrows() == 0 );
}
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TEST_CASE( "When unchecked exceptions are thrown, but caught, they do not affect the test", "" )
{
try
{
throw std::domain_error( "unexpected exception" );
}
catch(...)
{
}
}
class CustomException
{
public:
CustomException( const std::string& msg )
: m_msg( msg )
{}
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std::string getMessage() const
{
return m_msg;
}
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private:
std::string m_msg;
};
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CATCH_TRANSLATE_EXCEPTION( CustomException& ex )
{
return ex.getMessage();
}
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CATCH_TRANSLATE_EXCEPTION( double& ex )
{
return Catch::toString( ex );
}
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TEST_CASE("Unexpected custom exceptions can be translated", "[.][failing]" )
{
if( Catch::isTrue( true ) )
throw CustomException( "custom exception" );
}
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inline void throwCustom() {
if( Catch::isTrue( true ) )
throw CustomException( "custom exception - not std" );
}
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TEST_CASE( "Custom exceptions can be translated when testing for nothrow", "[.][failing]" )
{
REQUIRE_NOTHROW( throwCustom() );
}
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TEST_CASE( "Custom exceptions can be translated when testing for throwing as something else", "[.][failing]" )
{
REQUIRE_THROWS_AS( throwCustom(), std::exception );
}
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TEST_CASE( "Unexpected exceptions can be translated", "[.][failing]" )
{
if( Catch::isTrue( true ) )
throw double( 3.14 );
}
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inline int thisFunctionNotImplemented( int ) {
CATCH_NOT_IMPLEMENTED;
}
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TEST_CASE( "NotImplemented exception", "" )
{
REQUIRE_THROWS( thisFunctionNotImplemented( 7 ) );
}
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}