public void TestEffectFunctorComposition()
{
using (StringWriter sw = new StringWriter())
{
Console.SetOut(sw);
var fzero = LazyFunction.pureFunction(Console.WriteLine);
var effect1 = new Effect <int>(fzero)
.Map(x => x + 10);
var effect = new Effect <int>(fzero)
.Map(x => x + 1)
.Map(x => x.ToString());
Assert.Equal("", sw.ToString());
var effectComposed = effect.Chain((string data) => effect1.Map(x => $"{x} - {data}"))
.Map(x => x.ToUpper());
Assert.Equal("", sw.ToString());
var res = effectComposed.Run();
Assert.Equal("Launch nuclear missiles!\r\nLaunch nuclear missiles!\r\n", sw.ToString());
Assert.Equal("10 - 1", res);
}
}
public void TestPureLazyFunction()
{
using (StringWriter sw = new StringWriter())
{
Console.SetOut(sw);
LazyFunction.pureFunction(Console.WriteLine);
Assert.Equal("", sw.ToString());
}
}
public void TestEffectFunctor()
{
using (StringWriter sw = new StringWriter())
{
Console.SetOut(sw);
var fzero = LazyFunction.pureFunction(Console.WriteLine);
var effect = new Effect <int>(fzero)
.Map(x => x + 1)
.Map(x => x.ToString());
Assert.Equal("", sw.ToString());
var res = effect.Run();
Assert.Equal("Launch nuclear missiles!\r\n", sw.ToString());
Assert.Equal("1", res);
}
}
