def test_hexstr(self):
assert Bits(size=4).hex == '0x0'
assert Bits([0, 0, 0, 1]).hex == '0x1'
assert Bits([1, 0, 1, 0]).hex == '0xa'
assert Bits([1, 0, 0, 0, 0]).hex == '0x10'
assert Bits([0, 1, 0, 0, 0, 0, 0, 0, 0, 0]).hex == '0x100'
assert Bits([0, 0, 0, 0, 0, 0, 0, 0]).hex == '0x00'
assert Bits.from_dec(31, size=32).hex == '0x0000001f'
assert Bits.from_dec(234).hex == '0xea'
def test_from_dec_positive(self):
assert Bits.from_dec(0) == Bits([0])
assert Bits.from_dec(0, 1) == Bits([0])
assert Bits.from_dec(1, 1) == Bits([1])
assert Bits.from_dec(10) == Bits([1, 0, 1, 0])
assert Bits.from_dec(10, 1) == Bits([0])
assert Bits.from_dec(10, 2) == Bits([1, 0])
assert Bits.from_dec(10, 3) == Bits([0, 1, 0])
assert Bits.from_dec(10, 10) == Bits([0, 0, 0, 0, 0, 0, 1, 0, 1, 0])
assert Bits.from_dec(100) == Bits([1, 1, 0, 0, 1, 0, 0])
def test_booth_tertiary():
A1 = Bits.from_dec(0b101111, 6)
B1 = Bits.from_dec(0b011010, 6)
assert Multiplication.booth_tertiary(A1, B1) == [
Bits([1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0]),
Bits([1, 1, 1, 0, 0, 1, 1, 0, 1, 0, 0, 0]),
Bits([1, 1, 1, 0, 0, 1, 0, 0, 0, 1, 1, 0])
]
A2 = Bits.from_dec(0b101111, 6)
B2 = Bits.from_dec(0b110010, 6)
assert Multiplication.booth_tertiary(A2, B2) == [
Bits([1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 0]),
Bits([0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0]),
Bits([0, 0, 0, 0, 1, 1, 1, 0, 1, 1, 1, 0])
]
def test_int_negative(self):
assert Bits.from_dec(-1).int == -1
assert Bits.from_dec(-1, 1).int == -1
assert Bits.from_dec(-1, 5).int == -1
assert Bits.from_dec(-10).int == -10
assert Bits.from_dec(-10, 5).int == -10
assert Bits.from_dec(-10, 10).int == -10
assert Bits.from_dec(-100, 8).int == -100
assert Bits.from_dec(-255).int == -255
def test_from_dec_negative(self):
assert Bits.from_dec(-1) == Bits([1])
assert Bits.from_dec(-1, 1) == Bits([1])
assert Bits.from_dec(-1, 5) == Bits([1, 1, 1, 1, 1])
assert Bits.from_dec(-10) == Bits([1, 0, 1, 1, 0])
assert Bits.from_dec(-10, 5) == Bits([1, 0, 1, 1, 0])
assert Bits.from_dec(-10, 10) == Bits([1, 1, 1, 1, 1, 1, 0, 1, 1, 0])
assert Bits.from_dec(-100, 8) == Bits([1, 0, 0, 1, 1, 1, 0, 0])
assert Bits.from_dec(-255) == Bits([1, 0, 0, 0, 0, 0, 0, 0, 1])
def test_uint_positive(self):
assert Bits.from_dec(0).uint == 0
assert Bits.from_dec(0, 1).uint == 0
assert Bits.from_dec(1, 1).uint == 1
assert Bits.from_dec(10).uint == 10
assert Bits.from_dec(10, 10).uint == 10
assert Bits.from_dec(100).uint == 100
def test_int_positive(self):
assert Bits.from_dec(0).int == 0
assert Bits.from_dec(0, 1).int == 0
assert Bits.from_dec(10, 10).int == 10
assert Bits.from_dec(100, 32).int == 100
def test_multiple_subtraction(self):
assert Bits.from_dec(2, 8) - Bits.from_dec(1, 8) - Bits.from_dec(
32, 8) == Bits.from_dec(2 - 1 - 32, 8)
assert Bits.from_dec(32, 8) - Bits.from_dec(15, 8) - Bits.from_dec(
66, 8) == Bits.from_dec(32 - 15 - 66, 8)
def test_simple(self):
assert Bits.from_dec(2, 8) - Bits.from_dec(1, 8) == Bits.from_dec(
2 - 1, 8)
assert Bits.from_dec(127, 8) - Bits.from_dec(3, 8) == Bits.from_dec(
127 - 3, 8)
assert Bits.from_dec(3, 8) - Bits.from_dec(127, 8) == Bits.from_dec(
3 - 127, 8)
assert Bits.from_dec(1, 8) - Bits.from_dec(6, 8) == Bits.from_dec(
1 - 6, 8)
assert Bits.from_dec(12, 8) - Bits.from_dec(55, 8) == Bits.from_dec(
12 - 55, 8)
assert Bits.from_dec(0, 8) - Bits.from_dec(55, 8) == Bits.from_dec(
0 - 55, 8)
def test_simple(self):
assert -Bits.from_dec(1, 8) == Bits.from_dec(-1, 8)
assert -Bits.from_dec(0, 8) == Bits.from_dec(-0, 8)
assert -Bits.from_dec(7, 8) == Bits.from_dec(-7, 8)
assert -Bits.from_dec(32, 8) == Bits.from_dec(-32, 8)
assert -Bits.from_dec(127, 8) == Bits.from_dec(-127, 8)