Add `std::byte` stringification support (#1686)

* Add `std::byte` support

1. Add byte detection in Catch config
2. Add a `std::byte`specialisation for Catch2::Detail::StringMaker
This commit is contained in:
Stuart Dootson 2019-07-13 13:47:56 +01:00 committed by Martin Hořeňovský
parent 0c27554af5
commit 87739ad3fe
5 changed files with 41 additions and 0 deletions

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@ -201,6 +201,14 @@
# endif // __has_include(<optional>) && defined(CATCH_CPP17_OR_GREATER)
#endif // __has_include
////////////////////////////////////////////////////////////////////////////////
// Check if byte is available and usable
#if defined(__has_include)
# if __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
# define CATCH_INTERNAL_CONFIG_CPP17_BYTE
# endif // __has_include(<cstddef>) && defined(CATCH_CPP17_OR_GREATER)
#endif // __has_include
////////////////////////////////////////////////////////////////////////////////
// Check if variant is available and usable
#if defined(__has_include)
@ -256,6 +264,11 @@
# define CATCH_CONFIG_CPP17_VARIANT
#endif
#if defined(CATCH_INTERNAL_CONFIG_CPP17_BYTE) && !defined(CATCH_CONFIG_NO_CPP17_BYTE) && !defined(CATCH_CONFIG_CPP17_BYTE)
# define CATCH_CONFIG_CPP17_BYTE
#endif
#if defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
# define CATCH_INTERNAL_CONFIG_NEW_CAPTURE
#endif

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@ -170,6 +170,12 @@ std::string StringMaker<wchar_t *>::convert(wchar_t * str) {
}
#endif
#if defined(CATCH_CONFIG_CPP17_BYTE)
#include <cstddef>
std::string StringMaker<std::byte>::convert(std::byte value) {
return ::Catch::Detail::stringify(std::to_integer<unsigned long long>(value));
}
#endif // defined(CATCH_CONFIG_CPP17_BYTE)
std::string StringMaker<int>::convert(int value) {
return ::Catch::Detail::stringify(static_cast<long long>(value));

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@ -210,6 +210,12 @@ namespace Catch {
}
};
#if defined(CATCH_CONFIG_CPP17_BYTE)
template<>
struct StringMaker<std::byte> {
static std::string convert(std::byte value);
};
#endif // defined(CATCH_CONFIG_CPP17_BYTE)
template<>
struct StringMaker<int> {
static std::string convert(int value);

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@ -36,6 +36,7 @@ set(TEST_SOURCES
${SELF_TEST_DIR}/UsageTests/Generators.tests.cpp
${SELF_TEST_DIR}/UsageTests/Message.tests.cpp
${SELF_TEST_DIR}/UsageTests/Misc.tests.cpp
${SELF_TEST_DIR}/UsageTests/ToStringByte.tests.cpp
${SELF_TEST_DIR}/UsageTests/ToStringChrono.tests.cpp
${SELF_TEST_DIR}/UsageTests/ToStringGeneral.tests.cpp
${SELF_TEST_DIR}/UsageTests/ToStringOptional.tests.cpp

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@ -0,0 +1,15 @@
#include "catch.hpp"
#if defined(CATCH_CONFIG_CPP17_BYTE)
TEST_CASE( "std::byte -> toString", "[toString][byte][approvals]" ) {
using type = std::byte;
REQUIRE( "0" == ::Catch::Detail::stringify( type{ 0 } ) );
}
TEST_CASE( "std::vector<std::byte> -> toString", "[toString][byte][approvals]" ) {
using type = std::vector<std::byte>;
REQUIRE( "{ 0, 1, 2 }" == ::Catch::Detail::stringify( type{ std::byte{0}, std::byte{1}, std::byte{2} } ) );
}
#endif // CATCH_INTERNAL_CONFIG_CPP17_BYTE