public void TypeOfSinus_GetDerivative_ResultMustBeTypeOfCosine()
{
var variableOfSinus = new SinusFunction();
var result = new CosineFunction();
Assert.AreEqual(result.ToString(), variableOfSinus.GetDerivative().ToString());
}
public void ArgumentZero_Calculate_ResultMustBeZero()
{
var variableSinus = new SinusFunction();
Assert.Zero(variableSinus.Calculate(0));
}
public ICommand BuildCommand(string input)
{
var regexForName = new Regex(@"\w+$");
var name = regexForName.Match(input).ToString();
var sin = new SinusFunction();
return(new AddFunctionCommand(name, sin));
}
public void FractionalArgument_Calculate_ResultMustBeNumber()
{
var variableSinus = new SinusFunction();
var result = variableSinus.Calculate(999.09);
var validResult = 0.063;
Assert.IsTrue(result.Eq(validResult));
}
public void ArgumentOfMinus_Calculate_ResultMustBeNumber()
{
var variableSinus = new SinusFunction();
var result = variableSinus.Calculate(-2);
var validResult = -0.909;
Assert.IsTrue(result.Eq(validResult));
}
public void SinusFunction_Calculate_ResultMustBeNumber()
{
var sinusFunction = new SinusFunction();
var name = "sinus";
var storage = new FunctionsStorage();
storage.AddFunction(name, sinusFunction);
Assert.AreEqual(storage.CalculateFunction(name, 2), 0.90929742682, 0.0001);
}