class TestFractionMethods:
'''Testing class Fraction'''
@pytest.fixture(scope='function', autouse=True)
def setup_class(self):
'''Setting up'''
self.fraction1 = Fraction(1, 3)
self.fraction2 = Fraction(4, 6)
self.fraction3 = Fraction(6, 4)
def test_init(self):
'''Testing init'''
assert self.fraction1 == Fraction(1, 3)
def test_init_simplification(self):
'''Testing init with gcd'''
assert self.fraction2 == Fraction(2, 3)
def test_init_numerator_error(self):
'''Testing numerator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1.5, 2)
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Numerator must be an integer number'
def test_init_denominator_error(self):
'''Testing denominator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 2.5)
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Denominator must be an integer number'
def test_init_numerator_error_2(self):
'''Testing numerator error'''
with pytest.raises(TypeError) as excinfo:
Fraction('1', 2)
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Numerator must be an integer number'
def test_init_denominator_error_2(self):
'''Testing denominator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, '2')
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Denominator must be an integer number'
def test_get_numerator(self):
'''Testing numerator getter'''
assert self.fraction1.get_numerator() == 1
def test_get_numerator_2(self):
'''Testing numerator getter'''
assert self.fraction1.numerator == 1
def test_get_denominator(self):
'''Testing denominator getter'''
assert self.fraction1.get_denominator() == 3
def test_get_denominator_2(self):
'''Testing denominator getter'''
assert self.fraction1.denominator == 3
def test_str(self, capsys):
'''Testing __str__method'''
print(self.fraction3)
out, err = capsys.readouterr()
assert out.strip() == '1 1/2'
def test_repr(self, capsys):
'''Testing __repr__method'''
print(repr(self.fraction3))
out, err = capsys.readouterr()
assert out.strip() == 'Fraction(3, 2)'
def test_eq(self):
'''Testing equality operator'''
assert Fraction(1, 3) == Fraction(2, 6)
def test_eq_error(self):
'''Testing equality operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) == 1
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only compare Fractions'
def test_gt(self):
'''Testing greater-than operator'''
assert Fraction(1, 3) > Fraction(1, 4)
assert Fraction(1, 2) < Fraction(2, 3)
def test_gt_error(self):
'''Testing greater-than operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) > 1
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only compare Fractions'
def test_ge(self):
'''Testing greater-than-or-equal operator'''
assert Fraction(1, 3) >= Fraction(1, 4)
assert Fraction(1, 2) <= Fraction(2, 3)
def test_ge_error(self):
'''Testing greater-than-or-equal operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) >= 1
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only compare Fractions'
def test_add(self):
'''Testing addition operator'''
assert (self.fraction1 + self.fraction2) == Fraction(1, 1)
def test_add_error(self):
'''Testing addition operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) + '1'
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only add two Fractions'
def test_sub(self):
'''Testing subtraction operator'''
assert (self.fraction1 - self.fraction2) == Fraction(-1, 3)
def test_sub_error(self):
'''Testing subtraction operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) - '1'
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only subtract two Fractions'
def test_mult(self):
'''Testing multiplication operator'''
assert (self.fraction1 * self.fraction2) == Fraction(2, 9)
def test_mult_error(self):
'''Testing multiplication operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) * '1'
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only multiply two Fractions'
def test_truediv(self):
'''Testing true division operator'''
assert (self.fraction1 / self.fraction2) == Fraction(1, 2)
def test_truediv_error(self):
'''Testing true division operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) / '1'
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only divide two Fractions'
def test_eq(self):
'''Testing equality operator'''
assert Fraction(1, 3) == Fraction(2, 6)
def test_init_numerator_error_2(self):
'''Testing numerator error'''
with pytest.raises(TypeError) as excinfo:
Fraction('1', 2)
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Numerator must be an integer number'
def test_init_denominator_error_2(self):
'''Testing denominator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, '2')
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Denominator must be an integer number'
def test_add(self):
'''Testing addition operator'''
assert (self.fraction1 + self.fraction2) == Fraction(1, 1)
def test_init_simplification(self):
'''Testing init with gcd'''
assert self.fraction2 == Fraction(2, 3)
def test_truediv(self):
'''Testing true division operator'''
assert (self.fraction1 / self.fraction2) == Fraction(1, 2)
def test_gt(self):
'''Testing greater-than operator'''
assert Fraction(1, 3) > Fraction(1, 4)
assert Fraction(1, 2) < Fraction(2, 3)
def test_mult(self):
'''Testing multiplication operator'''
assert (self.fraction1 * self.fraction2) == Fraction(2, 9)
def test_mult_error(self):
'''Testing multiplication operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) * '1'
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only multiply two Fractions'
def test_sub_error(self):
'''Testing subtraction operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) - '1'
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only subtract two Fractions'
def test_sub(self):
'''Testing subtraction operator'''
assert (self.fraction1 - self.fraction2) == Fraction(-1, 3)
def test_add_error(self):
'''Testing addition operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) + '1'
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only add two Fractions'
def test_eq_error(self):
'''Testing equality operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) == 1
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only compare Fractions'
def test_init(self):
'''Testing init'''
assert self.fraction1 == Fraction(1, 3)
def setup_class(self):
'''Setting up'''
self.fraction1 = Fraction(1, 3)
self.fraction2 = Fraction(4, 6)
self.fraction3 = Fraction(6, 4)
def test_truediv_error(self):
'''Testing true division operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) / '1'
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only divide two Fractions'
def test_gt_error(self):
'''Testing greater-than operator error'''
with pytest.raises(TypeError) as excinfo:
Fraction(1, 3) > 1
exception_msg = excinfo.value.args[0]
assert exception_msg == 'Can only compare Fractions'
def test_ge(self):
'''Testing greater-than-or-equal operator'''
assert Fraction(1, 3) >= Fraction(1, 4)
assert Fraction(1, 2) <= Fraction(2, 3)
