public void CreateMembershipFunctionEntity_ThrowsInvalidEnumArgumentExceptionIfMembershipFunctionTypeIsUnknown()
{
// Arrange
MembershipFunctionType membershipFunctionType = MembershipFunctionType.Triangular;
string membershipFunctionName = "High";
List <double> points = new List <double>();
// Act & Assert
Assert.Throws <InvalidEnumArgumentException>(() =>
{
_membershipFunctionCreator.CreateMembershipFunctionEntity(membershipFunctionType, membershipFunctionName, points);
});
}
public void CreateMembershipFunctionEntity_ThrowsArgumentOutOfRangeExceptionForTrapezoidalFunction()
{
// Arrange
MembershipFunctionType membershipFunctionType = MembershipFunctionType.Trapezoidal;
string membershipFunctionName = "High";
List <double> points = new List <double> {
1, 2
};
// Act & Assert
Assert.Throws <ArgumentOutOfRangeException>(() =>
{
_membershipFunctionCreator.CreateMembershipFunctionEntity(membershipFunctionType, membershipFunctionName, points);
});
}
public MembershipFunction CreateMembershipFunctionEntity(MembershipFunctionType membershipFunctionType, string membershipFunctionName, List <double> points)
{
int countOfPoints = points.Count;
switch (membershipFunctionType)
{
case MembershipFunctionType.Trapezoidal:
if (countOfPoints != 4)
{
throw new ArgumentOutOfRangeException($"Trapesoidal membership function contains {countOfPoints} points instead of 4.");
}
return(new TrapezoidalMembershipFunction(membershipFunctionName, points[0], points[1], points[2], points[3]));
default:
throw new InvalidEnumArgumentException($"Not supported membership function type: {membershipFunctionType}.");
}
}
public void CreateMembershipFunctionEntity_ReturnsCorrectMembershipFunction()
{
// Arrange
MembershipFunctionType membershipFunctionType = MembershipFunctionType.Trapezoidal;
string membershipFunctionName = "High";
List <double> points = new List <double> {
1, 2, 3, 5
};
TrapezoidalMembershipFunction expectedMembershipFunction = new TrapezoidalMembershipFunction(membershipFunctionName,
points[0], points[1], points[2], points[3]);
// Act
TrapezoidalMembershipFunction actualMembershipFunction = (TrapezoidalMembershipFunction)
_membershipFunctionCreator.CreateMembershipFunctionEntity(membershipFunctionType, membershipFunctionName, points);
// Assert
Assert.IsNotNull(actualMembershipFunction);
Assert.IsTrue(ObjectComparer.MembershipFunctionsAreEqual(expectedMembershipFunction, actualMembershipFunction));
}
