def test_complex_expression(self):
six = solution.create_constant(6)
nine = solution.create_constant(9)
times = solution.create_operator('*', lambda lhs, rhs: lhs * rhs)
minus = solution.create_operator('-', lambda lhs, rhs: lhs - rhs)
plus = solution.create_operator('+', lambda lhs, rhs: lhs + rhs)
x = solution.create_variable('x')
y = solution.create_variable('y')
expression = solution.create_expression(
(six, times, ((x, minus, y), plus, nine))
)
self.assertEqual(expression.evaluate(x=5, y=2), 72)
def test_str_method_of_classes(self):
four = s.create_constant(4)
y = s.create_variable('y')
f = four + 3.5*(y-2)
self.assertEqual(str(four), '4')
self.assertEqual(str(y), 'y')
self.assertEqual(str(f), '(4 + (3.5 * (y - 2)))')
def test_variable_names(self):
x = solution.create_variable('x')
y = solution.create_variable('y')
eight = solution.create_constant(8)
expression = x + y + eight
self.assertEqual(expression.variable_names, ('x', 'y'))
def test_str_method_of_classes(self):
four = s.create_constant(4)
y = s.create_variable('y')
f = four + 3.5 * (y - 2)
self.assertEqual(str(four), '4')
self.assertEqual(str(y), 'y')
self.assertEqual(str(f), '(4 + (3.5 * (y - 2)))')
def test_expressions(self):
four = s.create_constant(4)
y = s.create_variable('y')
f = four / 2 + 3.5 * (y - 2)
d = (3 + 1j) + y
z = 15 - 2 / four * (12 / f)
self.assertEqual(d.evaluate(y=2), 5 + 1j)
self.assertEqual(f.evaluate(y=2), 2)
self.assertEqual(f.evaluate(y=0), -5)
self.assertEqual(z.evaluate(y=2, x=3), 12.0)
def test_expressions(self):
four = s.create_constant(4)
y = s.create_variable('y')
f = four/2 + 3.5*(y-2)
d = (3+1j) + y
z = 15 - 2/four * (12 / f)
self.assertEqual(d.evaluate(y=2), 5+1j)
self.assertEqual(f.evaluate(y=2), 2)
self.assertEqual(f.evaluate(y=0), -5)
self.assertEqual(z.evaluate(y=2, x=3), 12.0)
def test_constant_evaluation(self):
self.assertEqual(solution.create_constant(5).evaluate(), 5)
self.assertEqual(solution.create_constant(10 + 5).evaluate(), 15)
def test_operators(self):
y = solution.create_variable('y')
twelve = solution.create_constant(12)
expression = y + twelve
self.assertEqual(expression.evaluate(y=3), 15)
def test_create_constant(self):
const = s.create_constant(4.5)
self.assertEqual(str(const), '4.5')
self.assertEqual(const.evaluate(), 4.5)
def test_constant_evaluation(self):
self.assertEqual(s.create_variable('x').evaluate(x=42), 42)
self.assertEqual(s.create_constant(5).evaluate(), 5)
def test_operators(self):
y = s.create_variable('y')
twelve = s.create_constant(12)
expression = y + twelve
self.assertEqual(expression.evaluate(y=3), 15)
def test_create_constant(self):
const = s.create_constant(4.5)
self.assertEqual(str(const), '4.5')
self.assertEqual(const.evaluate(), 4.5)
def test_constant_evaluation(self):
self.assertEqual(s.create_variable('x').evaluate(x=42), 42)
self.assertEqual(s.create_constant(5).evaluate(), 5)