public void ComposeOneFunctionTest()
{
Executeable<int> linearfunction = (Func<int, int>)((int x) => 2 * x + 10);
Composition<int> comp = new Composition<int>(linearfunction);
Assert.AreEqual(10, comp.Execute(0));
Assert.AreEqual(14, comp.Execute(2));
Assert.AreEqual(20, comp.Execute(5));
}
static void Main(string[] args)
{
IExecute<int> identity = new SingleFunction<int>(x => x);
IExecute<int> linearfunction = new SingleFunction<int>(x => 3 * x - 2);
IExecute<int> quadraticfunction = new SingleFunction<int>(x => 2 * x * x - 5);
IExecute<int> cubicfunction = new SingleFunction<int>(x => x * x * x + x * x + x + 1);
var functionList = new[] { identity, linearfunction, quadraticfunction, cubicfunction };
var comp = new Composition<int>(functionList);
Console.WriteLine(comp.Execute(5));
Console.ReadKey();
}
public void AddingFunctionToCompositionTest()
{
Executeable<int> identity = (Func<int, int>)((int x) => x);
Composition<int> comp = new Composition<int>(identity);
Assert.AreEqual(0, (int)comp.Execute(0));
Assert.AreEqual(2, (int)comp.Execute(2));
Executeable<int> linearfunction = (Func<int, int>)((int x) => x + 2);
comp.Add(linearfunction);
Assert.AreEqual(2, (int)comp.Execute(0));
Assert.AreEqual(4, (int)comp.Execute(2));
Executeable<int> cubicfunction = (Func<int, int>)((int x) => x * x * x);
comp.Add(cubicfunction);
Assert.AreEqual(8, (int)comp.Execute(0));
Assert.AreEqual(64, (int)comp.Execute(2));
}
public void AddingFunctionToComposition()
{
IExecute<int> identity = new SingleFunction<int>(x => x);
var comp = new Composition<int>(identity);
Assert.AreEqual(0, comp.Execute(0));
Assert.AreEqual(2, comp.Execute(2));
IExecute<int> linearFunction = new SingleFunction<int>(x => x + 2);
comp.Add(linearFunction);
Assert.AreEqual(2, comp.Execute(0));
Assert.AreEqual(4, comp.Execute(2));
IExecute<int> cubicfunction = new SingleFunction<int>(x => x * x * x);
comp.Add(cubicfunction);
Assert.AreEqual(8, comp.Execute(0));
Assert.AreEqual(64, comp.Execute(2));
}
public void ComposeTwoFunctionsTest()
{
Executeable<int> linearfunction = (Func<int, int>)((int x) => 2 * x + 5);
Executeable<int> quadraticfunction = (Func<int, int>)((int x) => x* x);
Composition<int> comp = new Composition<int>(linearfunction, quadraticfunction);
Assert.AreEqual(25, (int)comp.Execute(0));
Assert.AreEqual(81, (int)comp.Execute(2));
Assert.AreEqual(225, (int)comp.Execute(5));
comp = new Composition<int>(quadraticfunction, linearfunction);
Assert.AreEqual(5, (int)comp.Execute(0));
Assert.AreEqual(13, (int)comp.Execute(2));
Assert.AreEqual(55, (int)comp.Execute(5));
comp = new Composition<int>(linearfunction, linearfunction);
Assert.AreEqual(15, (int)comp.Execute(0));
Assert.AreEqual(23, (int)comp.Execute(2));
Assert.AreEqual(35, (int)comp.Execute(5));
comp = new Composition<int>(quadraticfunction, quadraticfunction);
Assert.AreEqual(0, (int)comp.Execute(0));
Assert.AreEqual(16, (int)comp.Execute(2));
Assert.AreEqual(625, (int)comp.Execute(5));
}
public void ComposeThreeFunctionsTest()
{
Executeable<int> identity = (Func<int, int>)((int x) => x);
Executeable<int> linearfunction = (Func<int, int>)((int x) => x + 2);
Executeable<int> cubicfunction = (Func<int, int>)((int x) => x * x * x - 1);
List<Executeable<int>> functions = new List<Executeable<int>>();
functions.Add(identity);
functions.Add(linearfunction);
functions.Add(cubicfunction);
Composition<int> compose = new Composition<int>(functions.ToArray());
Assert.AreEqual(7, (int)compose.Execute(0));
Assert.AreEqual(63, (int)compose.Execute(2));
Assert.AreEqual(26, (int)compose.Execute(1));
}
public void CompositionOfCompositionsTest()
{
Executeable<int> linearfunction = (Func<int, int>)((int x) => x + 2);
Executeable<int> quadraticfunction = (Func<int, int>)((int x) => 2 * x * x);
Composition<int> comp1 = new Composition<int>(linearfunction, quadraticfunction);
Composition<int> comp2 = new Composition<int>(quadraticfunction, linearfunction);
Composition<int> compOfComps = new Composition<int>(comp1, comp2);
Assert.AreEqual(130, (int)compOfComps.Execute(0));
Assert.AreEqual(650, (int)compOfComps.Execute(1));
Assert.AreEqual(2050, (int)compOfComps.Execute(2));
}
public void ComposeOneFunction()
{
IExecute<int> linearfunction = new SingleFunction<int>(x => 2 * x + 10);
var comp = new Composition<int>(linearfunction);
Assert.AreEqual(10, comp.Execute(0));
Assert.AreEqual(14, comp.Execute(2));
Assert.AreEqual(20, comp.Execute(5));
}
public void CompositionOfCompositions()
{
IExecute<int> linearfunction = new SingleFunction<int>(x => x + 2);
IExecute<int> quadraticfunction = new SingleFunction<int>(x => 2 * x * x);
var comp1 = new Composition<int>(linearfunction, quadraticfunction);
var comp2 = new Composition<int>(quadraticfunction, linearfunction);
var compOfComps = new Composition<int>(comp1, comp2);
Assert.AreEqual(130, compOfComps.Execute(0));
Assert.AreEqual(650, compOfComps.Execute(1));
Assert.AreEqual(2050, compOfComps.Execute(2));
}
public void ComposeTwoFunctions()
{
IExecute<int> linearfunction = new SingleFunction<int>(x => 2 * x + 5);
IExecute<int> quadraticfunction = new SingleFunction<int>(x => x * x);
var comp = new Composition<int>(linearfunction, quadraticfunction);
Assert.AreEqual(25, comp.Execute(0));
Assert.AreEqual(81, comp.Execute(2));
Assert.AreEqual(225, comp.Execute(5));
comp = new Composition<int>(quadraticfunction, linearfunction);
Assert.AreEqual(5, comp.Execute(0));
Assert.AreEqual(13, comp.Execute(2));
Assert.AreEqual(55, comp.Execute(5));
comp = new Composition<int>(linearfunction, linearfunction);
Assert.AreEqual(15, comp.Execute(0));
Assert.AreEqual(23, comp.Execute(2));
Assert.AreEqual(35, comp.Execute(5));
comp = new Composition<int>(quadraticfunction, quadraticfunction);
Assert.AreEqual(0, comp.Execute(0));
Assert.AreEqual(16, comp.Execute(2));
Assert.AreEqual(625, comp.Execute(5));
}
public void ComposeThreeFunctions()
{
IExecute<int> identity = new SingleFunction<int>(x => x);
IExecute<int> linearFunction = new SingleFunction<int>(x => x + 2);
IExecute<int> cubicfunction = new SingleFunction<int>(x => x * x * x - 1);
var functionList = new[] { identity, linearFunction, cubicfunction };
var comp = new Composition<int>(functionList);
Assert.AreEqual(7, comp.Execute(0));
Assert.AreEqual(63, comp.Execute(2));
Assert.AreEqual(26, comp.Execute(1));
}
