static_assert( __cplusplus >= 2023'02 );

#include <Alepha/Functional/composition.h>

#include <Alepha/Testing/test.h>

#include <Alepha/Utility/enroll.h>

namespace
{
	using namespace Alepha::Testing::exports;


	auto init= Alepha::Utility::enroll <=[]
	{
		"smoke test"_test <=[]( Environment test )
		{
			using namespace Alepha::Functional::exports::composition_m;

			auto i= ident * ident;

			auto add_two= []( const int x )
			{
				return x + 2;
			};

			auto mult_two= []( const int x ) { return x * 2; };

			auto add_two_then_mult_two= mult_two * add_two;

			test.expect( add_two_then_mult_two( 1 ) == 6 );
		};

		"compose test"_test <=[]( Environment test )
		{
			using namespace Alepha::Functional::exports::composition_m;

			auto add= []( const int x, const int y )
			{
				return x + y;
			};

			auto mult3= []( const int x ) { return x * 3; };

			test.expect( ( add >> mult3 )( 2, 1 ) == 9 );
		};
	};
}