public void Test_SubGridTreeBitMask_SetOp_AND()
{
var mask = new SubGridTreeBitMask();
for (int i = 0; i < 100; i++)
{
for (int j = 0; j < 100; j++)
{
int x = i * 10;
int y = j * 10;
mask.SetCell(x, y, true);
}
}
int expectedBitCount = 10000;
mask.CountBits().Should().Be(expectedBitCount);
// Make a copy of mask
var secondMask = new SubGridTreeBitMask();
secondMask.SetOp_OR(mask);
secondMask.CountBits().Should().Be(expectedBitCount);
// Check ANDing mask and second mask results in the same bit count
secondMask.SetOp_AND(mask);
secondMask.CountBits().Should().Be(expectedBitCount);
for (int i = 0; i < 100; i++)
{
for (int j = 0; j < 100; j++)
{
int x = i * 10;
int y = j * 10;
mask[x, y].Should().BeTrue();
}
}
// Check ANDing with empty mask clears all bits in mask
var emptyMask = new SubGridTreeBitMask();
emptyMask.CountBits().Should().Be(0);
mask.SetOp_AND(emptyMask);
mask.CountBits().Should().Be(0);
}
