Move tests from projects/ to tests/

tests/SelfTest/UsageTests/ToStringByte.tests.cpp

@@ -0,0 +1,15 @@
+#include <catch2/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