def test_variable_and(self):
var = (expressions.Expression(expressions.triangle(10, 30))
& expressions.Expression(expressions.triangle(20, 40)))
assert var.mu(0) == 0
assert var.mu(50) == 0
assert var.mu(20) == 0
assert var.mu(30) == 0
assert var.mu(25) == 0.5
def test_variable_and(self):
var = (
expressions.Expression(expressions.triangle(10, 30)) &
expressions.Expression(expressions.triangle(20, 40))
)
assert var.mu(0) == 0
assert var.mu(50) == 0
assert var.mu(20) == 0
assert var.mu(30) == 0
assert var.mu(25) == 0.5
def test_variable_neg(self):
var = -expressions.Expression(expressions.triangle(10, 30))
assert var.mu(0) == 1.
assert var.mu(10) == 1.
assert var.mu(15) == 0.5
assert var.mu(20) == 0.
assert var.mu(25) == 0.5
assert var.mu(30) == 1.
assert var.mu(40) == 1.
def test_variable_neg(self):
var = - expressions.Expression(expressions.triangle(10, 30))
assert var.mu(0) == 1.
assert var.mu(10) == 1.
assert var.mu(15) == 0.5
assert var.mu(20) == 0.
assert var.mu(25) == 0.5
assert var.mu(30) == 1.
assert var.mu(40) == 1.
def test_triangle(self):
tr = expressions.triangle(10, 30)
assert tr(0) == 0.
assert tr(10) == 0.
assert tr(15) == 0.5
assert tr(20) == 1.
assert tr(25) == 0.5
assert tr(30) == 0.
assert tr(40) == 0.
def test_triangle(self):
tr = expressions.triangle(10, 30)
assert tr(0) == 0.
assert tr(10) == 0.
assert tr(15) == 0.5
assert tr(20) == 1.
assert tr(25) == 0.5
assert tr(30) == 0.
assert tr(40) == 0.
def test_simple_init(self):
mu_fun = expressions.triangle(10, 30)
var = expressions.Expression(mu_fun)
assert var.mu(0) == 0.
assert var.mu(10) == 0.
assert var.mu(15) == 0.5
assert var.mu(20) == 1.
assert var.mu(25) == 0.5
assert var.mu(30) == 0.
assert var.mu(40) == 0.
def test_simple_init(self):
mu_fun = expressions.triangle(10, 30)
var = expressions.Expression(mu_fun)
assert var.mu(0) == 0.
assert var.mu(10) == 0.
assert var.mu(15) == 0.5
assert var.mu(20) == 1.
assert var.mu(25) == 0.5
assert var.mu(30) == 0.
assert var.mu(40) == 0.
def test___str__(self):
mu_fun = expressions.triangle(10, 30)
var = expressions.Expression(mu_fun)
assert isinstance(str(var), str)
def test___str__(self):
mu_fun = expressions.triangle(10, 30)
var = expressions.Expression(mu_fun)
assert isinstance(str(var), str)