public void Function_ContainsFunctions_ResultMustBeIsFalse()
{
var storage = new FunctionsStorage();
storage.AddFunction("linear", new LinearFunction(2.3, 5));
var result = storage.ContainsFunctions("Linear");
Assert.IsFalse(result);
}
public void Function_DeleteFunction_ResultMustBeIsTrue()
{
var storage = new FunctionsStorage();
storage.AddFunction("Cos", new CosineFunction());
storage.DeleteFunction("Cos");
var result = storage.ContainsFunctions("Cos");
Assert.IsFalse(result);
}
public void Function_GetFunction_ResultMustBeFunction()
{
var cos = new CosineFunction();
var storage = new FunctionsStorage();
storage.AddFunction("Cos", new CosineFunction());
var result = storage.GetFunction("Cos");
Assert.AreEqual(cos.ToString(), result.ToString());
}
public void LinearFunction_GetDerivative_ResultMustBeNumber()
{
var linearFunction = new LinearFunction(2.1, 5);
var name = "LinearFunction";
var storage = new FunctionsStorage();
storage.AddFunction(name, linearFunction);
Assert.AreEqual(storage.GetDerivativeFunction(name).ToString(), "2,1x");
}
public void PowerFunction_Calculate_ResultMustBeNumber()
{
var powerFunction = new PowerFunction(3);
var name = "powerFunction";
var storage = new FunctionsStorage();
storage.AddFunction(name, powerFunction);
Assert.AreEqual(storage.CalculateFunction(name, 2.2), 10.648, 0.0001);
}
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);
}
