public UnitInterval Evaluate(UnitInterval membershipA, UnitInterval membershipB)
{
return((membershipA + membershipB) - (membershipA * membershipB) > 0
? UnitInterval.Create(
(membershipA * membershipB)
/ ((membershipA + membershipB) - (membershipA * membershipB)))
: UnitInterval.Zero());
}
internal void Zero_ReturnsUnitIntervalWithValueZero()
{
// Arrange
// Act
var result = UnitInterval.Zero();
// Assert
Assert.Equal(0, result.Value);
}
internal void MinY_ReturnsExpectedResult()
{
// Arrange
var function = SingletonFunction.Create(1);
// Act
var result = function.MinY;
// Assert
Assert.Equal(UnitInterval.Zero(), result);
}
internal void ToString_ReturnsExpectedResults()
{
// Arrange
// Act
var result1 = UnitInterval.Zero().ToString();
var result2 = UnitInterval.One().ToString();
// Assert
Assert.Equal("0", result1);
Assert.Equal("1", result2);
}
internal void GetHashCode_ReturnsExpectedResults()
{
// Arrange
// Act
var result1 = UnitInterval.Zero().GetHashCode();
var result2 = UnitInterval.One().GetHashCode();
// Assert
Assert.Equal(0, result1);
Assert.Equal(1072693248, result2);
}
internal void Equals_WhenValueNotEqual_ReturnsFalse()
{
// Arrange
var unitInterval = UnitInterval.One();
// Act
var result1 = unitInterval.Equals(UnitInterval.Zero());
var result2 = unitInterval.Equals(0);
// Assert
Assert.False(result1);
Assert.False(result2);
}
internal void MinY_ReturnsExpectedResult()
{
// Arrange
// Arrange
var points = new FuzzyPoint[]
{
new FuzzyPoint(2, 0),
new FuzzyPoint(3, 1)
};
var function = new PiecewiseLinearFunction(points);
// Act
var result = function.MinY;
// Assert
Assert.Equal(UnitInterval.Zero(), result);
}
internal void Evaluate_WithTwoGroupCompoundStatementAllZero_ReturnsExpectedResult()
{
// Arrange
var evaluator = new FuzzyEvaluator();
var evaluations = new List <Evaluation>
{
// Statement group 1 (assumed to evaluate to 0).
new Evaluation(LogicOperators.If(), UnitInterval.Create(0.0)),
new Evaluation(LogicOperators.And(), UnitInterval.Create(0.0)),
new Evaluation(LogicOperators.And(), UnitInterval.Create(0.0)),
// Statement group 2 (assumed to evaluate to 0).
new Evaluation(LogicOperators.Or(), UnitInterval.Create(0)),
new Evaluation(LogicOperators.And(), UnitInterval.Create(0)),
new Evaluation(LogicOperators.And(), UnitInterval.Create(0))
};
// Act
var result = evaluator.Evaluate(evaluations);
// Assert
Assert.Equal(UnitInterval.Zero(), result);
}