75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
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#include "catch.hpp"
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/*
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Demonstrate which version of toString/StringMaker is being used
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for various types
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*/
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struct has_toString { };
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struct has_maker {};
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struct has_maker_and_toString {};
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namespace Catch {
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std::string toString( const has_toString& ) {
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return "toString( has_toString )";
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}
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std::string toString( const has_maker_and_toString& ) {
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return "toString( has_maker_and_toString )";
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}
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template<>
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struct StringMaker<has_maker> {
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static std::string convert( const has_maker& ) {
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return "StringMaker<has_maker>";
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}
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};
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template<>
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struct StringMaker<has_maker_and_toString> {
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static std::string convert( const has_maker_and_toString& ) {
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return "StringMaker<has_maker_and_toString>";
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}
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};
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}
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// Call the overload
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TEST_CASE( "toString( has_toString )", "[toString]" )
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{
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has_toString item;
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REQUIRE( Catch::toString( item ) == "toString( has_toString )" );
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}
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// Call the overload
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TEST_CASE( "toString( has_maker )", "[toString]" )
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{
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has_maker item;
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REQUIRE( Catch::toString( item ) == "StringMaker<has_maker>" );
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}
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// Call the overload
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TEST_CASE( "toString( has_maker_and_toString )", "[toString]" )
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{
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has_maker_and_toString item;
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REQUIRE( Catch::toString( item ) == "toString( has_maker_and_toString )" );
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}
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// Vectors...
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TEST_CASE( "toString( vectors<has_toString )", "[toString]" )
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{
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std::vector<has_toString> v(1);
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// This invokes template<T> toString which actually gives us '{ ? }'
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REQUIRE( Catch::toString( v ) == "{ {?} }" );
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}
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TEST_CASE( "toString( vectors<has_maker )", "[toString]" )
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{
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std::vector<has_maker> v(1);
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REQUIRE( Catch::toString( v ) == "{ StringMaker<has_maker> }" );
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}
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TEST_CASE( "toString( vectors<has_maker_and_toString )", "[toString]" )
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{
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std::vector<has_maker_and_toString> v(1);
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// Note: This invokes the template<T> toString -> StringMaker
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REQUIRE( Catch::toString( v ) == "{ StringMaker<has_maker_and_toString> }" );
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}
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