public void ClearBit(int size, int bit)
{
var mask = new LogLevelBitMask(size, true, false);
// check the actual size of the mask in bits
int effectiveSize = (size + 31) & ~31;
Assert.Equal(effectiveSize, mask.Size);
// clear bit
mask.ClearBit(bit);
// check underlying buffer
uint[] maskArray = mask.AsArray();
int clearedBitArrayIndex = bit / 32;
int clearedBitIndex = bit % 32;
uint[] expectedMaskArray = new uint[effectiveSize / 32];
for (int i = 0; i < expectedMaskArray.Length; i++)
{
if (i == clearedBitArrayIndex)
{
expectedMaskArray[i] = ~0u & ~(1u << clearedBitIndex);
}
else
{
expectedMaskArray[i] = ~0u;
}
}
Assert.Equal(expectedMaskArray, maskArray);
}
public void IsBitCleared(int size, int bit)
{
var mask = new LogLevelBitMask(size, true, false);
Assert.False(mask.IsBitCleared(bit));
mask.ClearBit(bit);
Assert.True(mask.IsBitCleared(bit));
}