def test_round_trip(self): test_data = [struct.unpack('<d', os.urandom(8))[0] for _ in range(1000)] for value in test_data: round_tripped = bin_to_double(double_to_bin(value)) if math.isnan(value): assert math.isnan(round_tripped) else: assert round_tripped == value
def test_round_trip(self): test_data = [ _pad_to(bin(struct.unpack('<Q', os.urandom(8))[0]), 64) for _ in range(1000)] for value in test_data: frombin = bin_to_double(value) if math.isnan(frombin): continue round_tripped = double_to_bin(frombin) assert round_tripped == value
def test_negative_inf(self): expected = '0b1111111111110000000000000000000000000000000000000000000000000000' result = double_to_bin(-float('inf')) assert result == expected
def test_inf(self): expected = '0b0111111111110000000000000000000000000000000000000000000000000000' result = double_to_bin(float('inf')) assert result == expected
def test_nan(self): round_tripped = bin_to_double(double_to_bin(float('nan'))) assert math.isnan(round_tripped)
def test_negative_zero(self): expected = '0b1000000000000000000000000000000000000000000000000000000000000000' result = double_to_bin(-0.0) assert result == expected
def test_zero(self): expected = '0b0000000000000000000000000000000000000000000000000000000000000000' result = double_to_bin(0.0) assert result == expected