def testParameterOne(self):
"""
Tests the algorithm when the parameter passed is one
"""
beziercurve = bezier_curve_generator(ControlPoints([self.point1, self.point2, self.point3]))
bezierpoint = beziercurve(1)
assert isinstance(bezierpoint, self.point3)
assert self.point3 == bezierpoint
pass
def test_parameter_zero(self):
"""
Tests the algorithm when the parameter passed is zero
"""
bezier_curve = bezier_curve_generator(ControlPoints([self.point1, self.point2, self.point3]))
bezier_point = bezier_curve(0)
assert isinstance(bezier_point, Point2D)
assert self.point1 == bezier_point
pass
def testDeCasteljauComplete(self):
"""
Tests the algorithm for a parameter neither at the start or at the end of the curve, using all 3 points
"""
beziercurve = bezier_curve_generator(ControlPoints([self.point1, self.point2, self.point3]))
bezierpoint = beziercurve(0.5) #Result => (-16,5;46)
assert Point2D(-16.5, 46) == bezierpoint
pass
def testSinglePoint(self):
"""
Tests the algorithm when there is only one control point
"""
#Creates a high-order function the generates point on the Bezier Curve for a set of controls points
beziercurve = bezier_curve_generator(ControlPoints([self.point1]))
#Since there is only one control point, any value passed as parameter should return this point
assert self.point1 == beziercurve(0)
assert self.point1 == beziercurve(1)
assert self.point1 == beziercurve(0.5)
pass
def testExaustive(self):
"""
Tests the algorithm for 10000 points, forcing the recursive aspect of it, due Python's limitation
"""
controlPointsList = []
for x in range(0, 10000):
controlPointsList.append(Point2D(x=randint(0, 1000), y=randint(0, 10000)))
beziercurve = bezier_curve_generator(ControlPoints(controlPointsList))
bezierpoint = beziercurve(0)
assert isinstance(bezierpoint, controlPointsList[0])
assert controlPointsList[0] == bezierpoint
pass
def test_exaustive(self):
"""
Tests the algorithm for 10000 points, forcing the recursive aspect of it, due Python's limitation
"""
control_points_list = []
#Tested for 10000; but the test was changed to 100 to speed up future verifications
for x in range(0, 100):
control_points_list.append(Point2D(x=randint(0, 1000), y=randint(0, 10000)))
bezier_curve = bezier_curve_generator(ControlPoints(control_points_list))
bezier_point = bezier_curve(0)
assert isinstance(bezier_point, Point2D)
assert control_points_list[0] == bezier_point
pass