package test

import "testing"

import "github.com/firestuff/subcoding/asm"
import "github.com/firestuff/subcoding/vm"

func assembleAndExecute(t *testing.T, src string) *vm.State {
	prog, err := asm.AssembleString(src)
	if err != nil {
		t.Fatal(err)
	}

	state, err := vm.NewState(prog)
	if err != nil {
		t.Fatal(err)
	}

	err = state.Execute()
	if err != nil {
		t.Fatal(err)
	}

	return state
}

func expectGlobalMemory(t *testing.T, state *vm.State, i uint64, expected uint64) {
	actual := state.GlobalMemory().MustReadUnsigned(i)
	if actual != expected {
		t.Fatalf("Global memory index %d: expected=%d actual=%d\n", i, expected, actual)
	}
}

func expectGlobalMemorySigned(t *testing.T, state *vm.State, i uint64, expected int64) {
	actual := int64(state.GlobalMemory().MustReadUnsigned(i))
	if actual != expected {
		t.Fatalf("Global memory index %d: expected=%d actual=%d\n", i, expected, actual)
	}
}