private void BitVectorsOperationsTest32()
{
const int k_bit_count = Bits.kInt32BitCount;
var lhs_bits = 0x4; // 0100b
var lhs_bs = new BitVector32(lhs_bits);
var rhs_bits = 0xA; // 1010b
var rhs_bs = new BitVector32(rhs_bits);
lhs_bs = lhs_bs.Or(rhs_bs);
Assert.AreEqual(3, lhs_bs.Cardinality);
Assert.AreEqual(k_bit_count - lhs_bs.Cardinality, lhs_bs.CardinalityZeros);
Assert.AreEqual(lhs_bs[0], false);
Assert.AreEqual(lhs_bs[1], true);
Assert.AreEqual(lhs_bs[2], true);
Assert.AreEqual(lhs_bs[3], true);
// also undoes the OR operation
lhs_bs = lhs_bs.AndNot(rhs_bs);
Assert.AreEqual(1, lhs_bs.Cardinality);
Assert.AreEqual(k_bit_count - lhs_bs.Cardinality, lhs_bs.CardinalityZeros);
Assert.AreEqual(lhs_bs[0], false);
Assert.AreEqual(lhs_bs[1], false);
Assert.AreEqual(lhs_bs[2], true);
Assert.AreEqual(lhs_bs[3], false);
lhs_bs = lhs_bs.And(rhs_bs);
Assert.AreEqual(0, lhs_bs.Cardinality);
Assert.AreEqual(k_bit_count - lhs_bs.Cardinality, lhs_bs.CardinalityZeros);
Assert.AreEqual(lhs_bs[0], false);
Assert.AreEqual(lhs_bs[1], false);
Assert.AreEqual(lhs_bs[2], false);
Assert.AreEqual(lhs_bs[3], false);
// at this point lhs is zero, and the only bit in rhs which is on (relative to lhs's bit-space) is the 2nd
lhs_bs = lhs_bs.Xor(rhs_bs);
Assert.AreEqual(2, lhs_bs.Cardinality);
Assert.AreEqual(k_bit_count - lhs_bs.Cardinality, lhs_bs.CardinalityZeros);
Assert.AreEqual(lhs_bs[0], false);
Assert.AreEqual(lhs_bs[1], true);
Assert.AreEqual(lhs_bs[2], false);
Assert.AreEqual(lhs_bs[3], true);
lhs_bs = lhs_bs.Not();
Assert.AreEqual(k_bit_count - 2, lhs_bs.Cardinality);
Assert.AreEqual(k_bit_count - lhs_bs.Cardinality, lhs_bs.CardinalityZeros);
Assert.AreEqual(lhs_bs[0], true);
Assert.AreEqual(lhs_bs[1], false);
Assert.AreEqual(lhs_bs[2], true);
Assert.AreEqual(lhs_bs[3], false);
}