public void BasicEquals()
{
var a = new Polynomials.DecimalPolynomial("20 7 0 4");
var b = new Polynomials.DecimalPolynomial("20 7 0 4");
a.Equals(b).Should().BeTrue();
}
public void CopyShouldThrowErrorIfPolynomialIsNull()
{
Polynomials.DecimalPolynomial nullPolynomial = null;
Action act = () => new Polynomials.DecimalPolynomial(nullPolynomial);
act.ShouldThrow <Exception>();
}
public void DivisionWithNullPolynomialShouldThrowException()
{
var a = new Polynomials.DecimalPolynomial("18 7");
var b = new Polynomials.DecimalPolynomial();
Action act = () => Polynomials.DecimalPolynomial.Divide(a, b);
act.ShouldThrow <Exception>();
}
public void CopyNonEmpty()
{
var a = new Polynomials.DecimalPolynomial("20 7 0 4");
var copy = a.Copy();
var expecting = new Polynomials.DecimalPolynomial("20 7 0 4");
expecting.Equals(copy).Should().BeTrue();
object.ReferenceEquals(a, copy).Should().BeFalse();
}
public void TrimsLeadingZeroMonomials()
{
var a = new Polynomials.DecimalPolynomial(" 20 7 0 4");
var b = new Polynomials.DecimalPolynomial("0 20 7 0 4");
a.Equals(b).Should().BeTrue();
a.Degree.Should().Be(4);
b.Degree.Should().Be(4);
}
public void NormalizeForSingleMonomial()
{
var a = new Polynomials.DecimalPolynomial();
a.Add(new Polynomials.DecimalMonomial(10, 3));
var expecting = new Polynomials.DecimalPolynomial("10 0 0");
expecting.Equals(a).Should().BeTrue();
}
public void AddsMissingMonomials_InsertedInDescendingOrder()
{
var a = new Polynomials.DecimalPolynomial();
a.Add(new Polynomials.DecimalMonomial(10, 3));
a.Add(new Polynomials.DecimalMonomial(7, 1));
var expecting = new Polynomials.DecimalPolynomial("10 0 7");
expecting.Equals(a).Should().BeTrue();
}
public void ComplexDivisionTest()
{
var a = new Polynomials.DecimalPolynomial("92 17 0 18 0 7");
var b = new Polynomials.DecimalPolynomial("4 1 0 3");
var divisionResult = Polynomials.DecimalPolynomial.Divide(a, b);
var result = divisionResult.Item1;
var rest = divisionResult.Item2;
var expectingResult = new Polynomials.DecimalPolynomial("23 -1 0");
var expectingRest = new Polynomials.DecimalPolynomial("-2 1 -51 3 7");
expectingResult.Should().Be(result);
expectingRest.Should().Be(rest);
}
public void Undivisible()
{
var a = new Polynomials.DecimalPolynomial("18 7");
var b = new Polynomials.DecimalPolynomial("4 2 1");
var divisionResult = Polynomials.DecimalPolynomial.Divide(a, b);
var result = divisionResult.Item1;
var rest = divisionResult.Item2;
var expectingResult = new Polynomials.DecimalPolynomial();
var expectingRest = new Polynomials.DecimalPolynomial("18 7");
expectingResult.Should().Be(result);
expectingRest.Should().Be(rest);
}
public void SimpleDivisionTest()
{
var a = new Polynomials.DecimalPolynomial("10 0 7");
var b = new Polynomials.DecimalPolynomial("2 1");
var divisionResult = Polynomials.DecimalPolynomial.Divide(a, b);
var result = divisionResult.Item1;
var rest = divisionResult.Item2;
var expectingResult = new Polynomials.DecimalPolynomial("5 -2");
var expectingRest = new Polynomials.DecimalPolynomial("-1 9");
expectingResult.Should().Be(result);
expectingRest.Should().Be(rest);
}
