public void FirstArgumentIsZero_GetDerivative_ResultMustBeZero()
{
var coefficientsLinearFunction = new LinearFunction(0, 3);
Assert.AreEqual(coefficientsLinearFunction.GetDerivative().ToString(), "0");
}
public void FirstArgumentOfNegative_GetDerivative_ResultMustBeNumber()
{
var coefficientsLinearFunction = new LinearFunction(-3.2, 3);
Assert.AreEqual(coefficientsLinearFunction.GetDerivative().ToString(), "-3,2x");
}
public void TwoArgumentAreZero_GetDerivative_ResultMustBeZero()
{
var coefficientsLinearFunction = new LinearFunction(0, 0);
var result = coefficientsLinearFunction.GetDerivative();
Assert.AreEqual(result.ToString(), "0");
}
