public double[] DivisionTest(double[] coefficients, double divisor)
{
var polynomial = new ThirdTask.Polynomial(coefficients);
var divisionOfPolynomials = polynomial / divisor;
return(divisionOfPolynomials.Coefficients);
}
public double[] SubtractionTest(double[] coefficients1, double[] coefficients2)
{
var polynomial1 = new ThirdTask.Polynomial(coefficients1);
var polynomial2 = new ThirdTask.Polynomial(coefficients2);
var subtractionOfPolynomials = polynomial1 - polynomial2;
return(subtractionOfPolynomials.Coefficients);
}
public double[] AdditionTest(double[] coefficients1, double[] coefficients2)
{
var polynomial1 = new ThirdTask.Polynomial(coefficients1);
var polynomial2 = new ThirdTask.Polynomial(coefficients2);
var sumOfPolynomials = polynomial1 + polynomial2;
return(sumOfPolynomials.Coefficients);
}
public void EqualsTest()
{
var polynomial1 = new ThirdTask.Polynomial(1, 2, 3, 4);
var polynomial2 = new ThirdTask.Polynomial(4, 3, 2, 1);
var polynomial3 = new ThirdTask.Polynomial(4, 3, 2, 1);
Assert.AreEqual(false, polynomial1.Equals(polynomial2));
Assert.AreEqual(true, polynomial2.Equals(polynomial3));
Assert.AreEqual(false, polynomial3.Equals(new double[] { 4.0, 3.0, 2.0, 1.0 }));
Assert.AreEqual(false, polynomial3.Equals(null));
}
public double[] MultiplicationByNumberTest(double[] coefficients, double multiplier)
{
var polynomial = new ThirdTask.Polynomial(coefficients);
var multiplicationResult1 = polynomial * multiplier;
var multiplicationResult2 = multiplier * polynomial;
if (!multiplicationResult1.Equals(multiplicationResult2))
{
Assert.Fail("Multiplication result depends on the order of multipliers.");
}
return(multiplicationResult1.Coefficients);
}
public string ToStringTest(double[] coefficients)
{
var polynomial = new ThirdTask.Polynomial(coefficients);
return(polynomial.ToString());
}
public double EvaluateTest(double[] coefficients, double x)
{
var polynomial = new ThirdTask.Polynomial(coefficients);
return(polynomial.Evaluate(x));
}
