private static bool runCommand(ref ReferenceSet <Key> set, Key[] domain, Command cmd)
{
switch (cmd.type)
{
case CmdType.CREATE:
set = new ReferenceSet <Key>((int)cmd.arg);
break;
case CmdType.ADD:
return(set.add(domain[(int)cmd.arg]));
case CmdType.DEL:
return(set.delete(domain[(int)cmd.arg]));
case CmdType.CLEAR:
set.clear();
break;
case CmdType.UNION:
set.unionWith(makeSet(domain, (IEnumerable <int>)cmd.arg));
break;
case CmdType.INTERSECT:
set.intersectWith(makeSet(domain, (IEnumerable <int>)cmd.arg));
break;
}
return(true);
}
public void findAddDeleteAndClearTest_nullKey()
{
var set = new ReferenceSet <Key>();
set.add(new Key());
set.add(new Key());
Assert.Throws <ArgumentNullException>(() => set.add(null));
Assert.Throws <ArgumentNullException>(() => set.find(null));
Assert.Throws <ArgumentNullException>(() => set.delete(null));
}
private static void assertSetHasKeys(ReferenceSet <Key> set, Key[] domain, IEnumerable <int> keys)
{
int keyCount = (keys == null) ? 0 : keys.Count();
Assert.Equal(keyCount, set.count);
bool[] keyMap = makeKeyMap(domain.Length, keys);
for (int i = 0; i < domain.Length; i++)
{
if (keyMap[i])
{
Assert.True(set.find(domain[i]));
Assert.False(set.add(domain[i]));
}
else
{
Assert.False(set.find(domain[i]));
Assert.False(set.delete(domain[i]));
}
}
Assert.Equal(keyCount, set.count);
}
