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);
}
[InlineData(128, 1, 126, new uint[] { 0x00000001u, 0x00000000u, 0x00000000u, 0x80000000u })] // all bits except the first and the last one
public void ClearBits(
int size,
int fromBit,
int count,
uint[] expectedMaskArray)
{
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.ClearBits(fromBit, count);
// check underlying buffer
uint[] maskArray = mask.AsArray();
Assert.Equal(expectedMaskArray, maskArray);
}
public void Create(int size, bool initialBitValue, bool paddingValue)
{
var mask = new LogLevelBitMask(size, initialBitValue, paddingValue);
// check the actual size of the mask in bits
int effectiveSize = (size + 31) & ~31;
Assert.Equal(effectiveSize, mask.Size);
// check padding value
Assert.Equal(paddingValue, mask.PaddingValue);
// check underlying buffer
uint[] maskArray = mask.AsArray();
uint[] expectedMaskArray = new uint[effectiveSize / 32];
for (int i = 0; i < expectedMaskArray.Length; i++)
{
expectedMaskArray[i] = initialBitValue ? ~0u : 0u;
}
Assert.Equal(expectedMaskArray, maskArray);
}