def test_float_max_value2():
assert Float.max_value().sign == Bit(False)
for bit in Float.max_value().exponents[:-1]:
assert bit == Bit(True)
assert Float.max_value().exponents[-1] == Bit()
for bit in Float.max_value().fractions:
assert bit == Bit(True)
def test_float_multiplication5():
float1 = Float('0.14')
float2 = Float('0.0001')
res = float1 * float2
assert res.sign == Bit()
exponents = map(lambda x: Bit(bool(x)), [0, 1, 1, 0, 1, 1, 1, 0])
for i, exp in enumerate(exponents):
assert res.exponents[i] == exp
fractions = map(
lambda x: Bit(bool(x)),
[1, 1, 0, 1, 0, 1, 0, 1, 1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0, 1, 0, 1, 0])
for i, exp in enumerate(fractions):
assert res.fractions[i] == exp
def test_float_multiplication3():
float1 = Float('-107')
float2 = Float('-97')
assert float1 * float2 == Float('10379.0')
def test_float_plus4():
float1 = Float('25')
float2 = Float('-10')
assert float1 + float2 == Float('15.0')
def test_float_plus3():
float1 = Float('5')
float2 = Float('-10')
assert float1 + float2 == Float('-5.0')
def test_float_plus2():
float1 = Float('-3.14')
float2 = Float('-2.5')
assert float1 + float2 == Float('-5.640000343322754')
def test_float_init1():
float_val = Float('3')
assert str(float_val) == '3.0'
def test_float_division3():
float1 = Float('3.14')
float2 = Float('0')
assert str(float1 / float2) == 'inf'
def test_float_init2():
float_val = Float('-1')
assert str(float_val) == '-1.0'
def test_float_init5():
float_val = Float('3.14')
assert str(float_val) == '3.140000104904175'
def test_float_init4():
float_val = Float('0.0')
assert str(float_val) == '0'
def test_float_min_value1():
assert str(Float.min_value()) == '-1.175494490952134e-38'
def test_float_max_value1():
assert str(Float.max_value()) == '340282346638528859811704183484516925440'
def test_float_division5():
float1 = Float('0')
float2 = Float('0')
assert str(float1 / float2) == 'nan'
def test_float_division4():
float1 = Float('-3.14')
float2 = Float('0')
assert str(float1 / float2) == '-inf'
def test_float_multiplication4():
float1 = Float('3.14')
float2 = Float('2.0001')
assert str(float1 * float2) == '6.280313491821289'
def test_float_init6():
float_val = Float('0.0001')
assert str(float_val) == '9.999999747378752e-05'
def test_float_plus1():
float1 = Float('3.14')
float2 = Float('2.5')
assert float1 + float2 == Float('5.640000343322754')
def test_float_division1():
float1 = Float('20')
float2 = Float('4')
assert float1 / float2 == Float('5.0')
def test_float_division2():
float1 = Float('3.14')
float2 = Float('2.0001')
assert str(float1 / float2) == '1.569921612739563'