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33ed1773f4
Now the order of stringification checks is 1) StringMaker specialization 2) operator<< toString overloads and specializations have been removed.
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
#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_operator { };
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struct has_maker {};
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struct has_maker_and_operator {};
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std::ostream& operator<<(std::ostream& os, const has_operator&) {
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os << "operator<<( has_operator )";
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return os;
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}
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std::ostream& operator<<(std::ostream& os, const has_maker_and_operator&) {
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os << "operator<<( has_maker_and_operator )";
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return os;
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}
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namespace Catch {
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template<>
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struct StringMaker<has_maker> {
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std::string operator()( 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_operator> {
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std::string operator()( const has_maker_and_operator& ) {
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return "StringMaker<has_maker_and_operator>";
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}
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};
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}
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// Call the operator
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TEST_CASE( "stringify( has_operator )", "[toString]" ) {
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has_operator item;
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REQUIRE( ::Catch::Detail::stringify( item ) == "operator<<( has_operator )" );
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}
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// Call the stringmaker
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TEST_CASE( "stringify( has_maker )", "[toString]" ) {
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has_maker item;
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REQUIRE( ::Catch::Detail::stringify( item ) == "StringMaker<has_maker>" );
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}
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// Call the stringmaker
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TEST_CASE( "stringify( has_maker_and_toString )", "[.][toString]" ) {
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has_maker_and_operator item;
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REQUIRE( ::Catch::Detail::stringify( item ) == "StringMaker<has_maker_and_operator>" );
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}
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// Vectors...
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// Don't run this in approval tests as it is sensitive to two phase lookup differences
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TEST_CASE( "toString( vectors<has_toString )", "[.][toString][!nonportable]" ) {
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std::vector<has_operator> v(1);
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REQUIRE( ::Catch::Detail::stringify( v ) == "{ operator<<( has_operator ) }" );
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}
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TEST_CASE( "toString( vectors<has_maker )", "[toString]" ) {
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std::vector<has_maker> v(1);
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REQUIRE( ::Catch::Detail::stringify( v ) == "{ StringMaker<has_maker> }" );
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}
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// Don't run this in approval tests as it is sensitive to two phase lookup differences
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TEST_CASE( "toString( vectors<has_maker_and_toString )", "[.][toString][!nonportable]" ) {
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std::vector<has_maker_and_operator> v(1);
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REQUIRE( ::Catch::Detail::stringify( v ) == "{ StringMaker<has_maker_and_toString> }" );
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}
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