def test_bitmask_int():
assert int(BitMask16()) == 0
assert int(BitMask16(0xfffe)) == 0xfffe
assert int(BitMask32()) == 0
assert int(BitMask32(1)) == 1
assert int(BitMask32(1234567)) == 1234567
assert int(BitMask32(0x8ff123fe)) == 0x8ff123fe
assert int(BitMask32(0xffffffff)) == 0xffffffff
assert int(BitMask64()) == 0
assert int(BitMask64(0xfffffffffffffffe)) == 0xfffffffffffffffe
assert int(DoubleBitMaskNative()) == 0
assert int(DoubleBitMaskNative(1)) == 1
assert int(DoubleBitMaskNative(1 << (double_num_bits //
2))) == 1 << (double_num_bits // 2)
assert int(DoubleBitMaskNative(0xffff0001)) == 0xffff0001
assert int(DoubleBitMaskNative((1 << double_num_bits) -
1)) == (1 << double_num_bits) - 1
assert int(QuadBitMaskNative()) == 0
assert int(QuadBitMaskNative(1)) == 1
assert int(QuadBitMaskNative(1 << (quad_num_bits //
2))) == 1 << (quad_num_bits // 2)
assert int(QuadBitMaskNative(0xffff0001feff0002)) == 0xffff0001feff0002
assert int(QuadBitMaskNative((1 << quad_num_bits) -
1)) == (1 << quad_num_bits) - 1
def test_bitmask_allon():
assert BitMask16.all_on().is_all_on()
assert BitMask32.all_on().is_all_on()
assert BitMask64.all_on().is_all_on()
assert DoubleBitMaskNative.all_on().is_all_on()
assert QuadBitMaskNative.all_on().is_all_on()
assert DoubleBitMaskNative((1 << double_num_bits) - 1).is_all_on()
assert QuadBitMaskNative((1 << quad_num_bits) - 1).is_all_on()
def test_bitmask_nonzero():
assert not BitMask16()
assert not BitMask32()
assert not BitMask64()
assert not DoubleBitMaskNative()
assert not QuadBitMaskNative()