public void ConstructorTest4()
{
decimal[] coeffs = { 0.0m, 1.0m };
var poly =
new Solvers.Polynomial(coeffs, 1);
decimal firstCoeff = poly.GetCoeff(0);
decimal secondCoeff = poly.GetCoeff(1);
decimal expectedCoeff = 0.0m;
Assert.AreEqual(expectedCoeff, firstCoeff);
expectedCoeff = 1.0m;
Assert.AreEqual(expectedCoeff, secondCoeff);
var newPoly =
new Solvers.Polynomial(poly);
firstCoeff = newPoly.GetCoeff(0);
secondCoeff = newPoly.GetCoeff(1);
expectedCoeff = 0.0m;
Assert.AreEqual(expectedCoeff, firstCoeff);
expectedCoeff = 1.0m;
Assert.AreEqual(expectedCoeff, secondCoeff);
}
public void ValueTest2()
{
var poly =
new Solvers.Polynomial(1, 0);
decimal calculatedResult = poly.Value(5);
decimal expectedResult = 1.0m;
Assert.AreEqual(expectedResult, calculatedResult);
}
public void ConstructorTest3()
{
var poly =
new Solvers.Polynomial(1, 1);
decimal firstCoeff = poly.GetCoeff(0);
decimal secondCoeff = poly.GetCoeff(1);
decimal expectedCoeff = 1.0m;
Assert.AreEqual(expectedCoeff, firstCoeff);
Assert.AreEqual(expectedCoeff, secondCoeff);
}
public void ConstructorTest1()
{
try
{
var poly =
new Solvers.Polynomial(-1);
}
catch (Exception e)
{
const string ErrorMessage =
"A degree of polynomial can't be a negative number.";
Assert.AreEqual(e.Message, ErrorMessage);
}
}
public void TestBinary1()
{
var poly =
new Solvers.Polynomial(1, 0);
var secondPoly =
new Solvers.Polynomial(1, 1);
var result = poly * secondPoly;
decimal expectedResult = 3.0m;
decimal calculatedResult = result.Value(2.0m);
Assert.AreEqual(expectedResult, calculatedResult);
}
public void TestBinary2()
{
decimal[] coeffs = new decimal[2];
coeffs[0] = 1.0m;
coeffs[1] = 0.25m;
var poly =
new Solvers.Polynomial(coeffs, 1);
var secondPoly =
new Solvers.Polynomial(coeffs, 1);
var result = poly * secondPoly;
decimal expectedResult = 1.5625m;
decimal calculatedResult = result.Value(1.0m);
Assert.AreEqual(expectedResult, calculatedResult);
}
