public void AddMember_NotNullPolynomialMember_AddedElement(double degree, double coefficient)
{
// arrange
int expectedLength = _polynomial.Count + 1;
var newEl = new PolynomialMember(degree, coefficient);
// act
_polynomial.AddMember(newEl);
// assert
Assert.AreEqual(expectedLength, _polynomial.Count);
var isAdded = Array.Find(_polynomial.ToArray(), x => Math.Abs(x.Degree - degree) < Precision);
Assert.IsTrue(Math.Abs(isAdded.Degree - newEl.Degree) < Precision && Math.Abs(isAdded.Coefficient - newEl.Coefficient) < Precision);
}
public void Multiply_PolynomialMultiplyPolynomial_NewPolynomial(Polynomial membersA,
Polynomial membersB, Polynomial expectedResult)
{
// act
var actualResult = membersA.Multiply(membersB);
// assert
AssertIsAsExpected(expectedResult.ToArray().OrderBy(x => x.Degree), actualResult.ToArray().OrderBy(x => x.Degree), _polynomialComparer);
}
public void SubtractionByOperator_PolynomialMinusPolynomial_NewPolynomial(Polynomial membersA,
Polynomial membersB, Polynomial expectedResult)
{
// act
var actualResult = membersA - membersB;
// assert
AssertIsAsExpected(expectedResult.ToArray().OrderBy(x => x.Degree), actualResult.ToArray().OrderBy(x => x.Degree), _polynomialComparer);
}
public void Multiply_PolynomialMinusPolynomialTuple_NewPolynomial(Polynomial membersA,
double degree, double coeff, Polynomial expectedResult)
{
// act
var actualResult = membersA.Multiply((degree, coeff));
// assert
AssertIsAsExpected(expectedResult.ToArray().OrderBy(x => x.Degree), actualResult.ToArray().OrderBy(x => x.Degree), _polynomialComparer);
}
public void AddByOperator_PolynomialPlusPolynomialTuple_NewPolynomial(Polynomial membersA,
double degree, double coeff, Polynomial expectedResult)
{
// act
var actualResult = membersA + (degree, coeff);
// assert
AssertIsAsExpected(expectedResult.ToArray().OrderBy(x => x.Degree), actualResult.ToArray().OrderBy(x => x.Degree), _polynomialComparer);
}
