private void RemoveAllAction(IHugeList <int>[] lists, Random rnd, ref string description)
{
IHugeList <int> reference = lists[0];
int extent = reference.Count;
int modulus, item;
switch ((int)(4 * Math.Pow(rnd.NextDouble(), 10))) // reaches '3' in just under 3% of cases
{
default:
Debug.Assert(false);
throw new InvalidOperationException();
case 0: // remove exact item
if (extent == 0)
{
return;
}
modulus = 0;
item = reference[rnd.Next() % extent];
break;
case 1: // remove non-match
modulus = 0;
do
{
item = rnd.Next();
} while ((extent != 0) && reference.Contains(item));
break;
case 2: // remove sparse pattern
modulus = rnd.Next() % 100 + 100;
item = 0;
break;
case 3: // remove dense pattern
modulus = rnd.Next() % 20 + 1;
item = 0;
break;
}
string delegateText = String.Format("delegate (int candidate) {{ return ({1} == 0) ? (candidate == {0}) : (candidate % {1} == {0}); }}", item, modulus);
description = String.Format("RemoveAll [{0}]", delegateText);
script.AppendLine(String.Format("new OpRemoveAll<T>({0}),", delegateText));
for (int i = 0; i < lists.Length; i++)
{
try
{
lists[i].RemoveAll(delegate(int candidate) { return((modulus == 0) ? (candidate == item) : (candidate % modulus == item)); });
}
catch (Exception exception)
{
Fault(lists[i], description + " - threw exception", exception);
}
}
}
private void ContainsAction(IHugeList <int>[] lists, Random rnd, ref string description)
{
IHugeList <int> reference = lists[0];
if ((rnd.Next(2) == 0) && (reference.Count != 0))
{
// existing
int item = reference[rnd.Next(reference.Count)];
description = String.Format("Contains (existing) [{0}]", item);
for (int i = 0; i < lists.Length; i++)
{
try
{
bool f = lists[i].Contains(item);
if (!f)
{
Fault(lists[i], description + " - returned false");
}
}
catch (Exception exception)
{
Fault(lists[i], description + " - threw exception", exception);
}
}
}
else
{
// missing
int item;
do
{
item = rnd.Next(Int32.MinValue, Int32.MaxValue);
}while (reference.Contains(item));
description = String.Format("Contains (missing) [{0}]", item);
for (int i = 0; i < lists.Length; i++)
{
try
{
bool f = lists[i].Contains(item);
if (f)
{
Fault(lists[i], description + " - returned true");
}
}
catch (Exception exception)
{
Fault(lists[i], description + " - threw exception", exception);
}
}
}
}
