EnumStruct

static struct S
{
    string name; // fields are randomized by default
}

assert(getArbitrary!S().name != getArbitrary!S().name);

enum Enum
{
    A = 10,
    B = 20,
    C = 30,
    D = 40,
}

Enum val = getArbitrary!Enum();
assert(cast(int)val % 10 == 0);