internal virtual void DoRandomSets(int maxSize, int iter, int mode)
{
BitSet a0 = null;
FixedBitSet b0 = null;
for (int i = 0; i < iter; i++)
{
int sz = TestUtil.NextInt32(Random, 2, maxSize);
BitSet a = new BitSet(sz);
FixedBitSet b = new FixedBitSet(sz);
// test the various ways of setting bits
if (sz > 0)
{
int nOper = Random.Next(sz);
for (int j = 0; j < nOper; j++)
{
int idx;
idx = Random.Next(sz);
a.Set(idx);
b.Set(idx);
idx = Random.Next(sz);
a.Clear(idx);
b.Clear(idx);
idx = Random.Next(sz);
a.Flip(idx, idx + 1);
b.Flip(idx, idx + 1);
idx = Random.Next(sz);
a.Flip(idx, idx + 1);
b.Flip(idx, idx + 1);
bool val2 = b.Get(idx);
bool val = b.GetAndSet(idx);
Assert.IsTrue(val2 == val);
Assert.IsTrue(b.Get(idx));
if (!val)
{
b.Clear(idx);
}
Assert.IsTrue(b.Get(idx) == val);
}
}
// test that the various ways of accessing the bits are equivalent
DoGet(a, b);
// test ranges, including possible extension
int fromIndex, toIndex;
fromIndex = Random.Next(sz / 2);
toIndex = fromIndex + Random.Next(sz - fromIndex);
BitSet aa = (BitSet)a.Clone();
aa.Flip(fromIndex, toIndex);
FixedBitSet bb = b.Clone();
bb.Flip(fromIndex, toIndex);
DoIterate(aa, bb, mode); // a problem here is from flip or doIterate
fromIndex = Random.Next(sz / 2);
toIndex = fromIndex + Random.Next(sz - fromIndex);
aa = (BitSet)a.Clone();
aa.Clear(fromIndex, toIndex);
bb = b.Clone();
bb.Clear(fromIndex, toIndex);
DoNextSetBit(aa, bb); // a problem here is from clear() or nextSetBit
DoPrevSetBit(aa, bb);
fromIndex = Random.Next(sz / 2);
toIndex = fromIndex + Random.Next(sz - fromIndex);
aa = (BitSet)a.Clone();
aa.Set(fromIndex, toIndex);
bb = b.Clone();
bb.Set(fromIndex, toIndex);
DoNextSetBit(aa, bb); // a problem here is from set() or nextSetBit
DoPrevSetBit(aa, bb);
if (b0 != null && b0.Length <= b.Length)
{
Assert.AreEqual(a.Cardinality, b.Cardinality);
BitSet a_and = (BitSet)a.Clone();
a_and.And(a0);
BitSet a_or = (BitSet)a.Clone();
a_or.Or(a0);
BitSet a_xor = (BitSet)a.Clone();
a_xor.Xor(a0);
BitSet a_andn = (BitSet)a.Clone();
a_andn.AndNot(a0);
FixedBitSet b_and = b.Clone();
Assert.AreEqual(b, b_and);
b_and.And(b0);
FixedBitSet b_or = b.Clone();
b_or.Or(b0);
FixedBitSet b_xor = b.Clone();
b_xor.Xor(b0);
FixedBitSet b_andn = b.Clone();
b_andn.AndNot(b0);
Assert.AreEqual(a0.Cardinality, b0.Cardinality);
Assert.AreEqual(a_or.Cardinality, b_or.Cardinality);
DoIterate(a_and, b_and, mode);
DoIterate(a_or, b_or, mode);
DoIterate(a_andn, b_andn, mode);
DoIterate(a_xor, b_xor, mode);
Assert.AreEqual(a_and.Cardinality, b_and.Cardinality);
Assert.AreEqual(a_or.Cardinality, b_or.Cardinality);
Assert.AreEqual(a_xor.Cardinality, b_xor.Cardinality);
Assert.AreEqual(a_andn.Cardinality, b_andn.Cardinality);
}
a0 = a;
b0 = b;
}
}