public void FunctionForEachWithResult()
{
const string VALUE = "This8Value17MayHave6Digits";
//Arrange
(char Character, bool IsDigit) IsDigit(char character)
{
var isDigit = char.IsDigit(character);
return(character, isDigit);
}
//Act
var result = VALUE.ForEach(IsDigit).ToArray();
//Assert
result.Should().NotBeNullOrEmpty();
result.Length.Should().Be(VALUE.Length);
var nonDigitsCount = result.Count(item => !item.IsDigit);
nonDigitsCount.Should().Be(22);
var digitCount = result.Count(item => item.IsDigit);
digitCount.Should().Be(4);
}
public void ActionForEach()
{
//Arrange
var count = 0;
const string VALUE = "123456789";
void DoWork(char character)
{
WriteLine($"Counting Character {character}.");
count++;
}
//Act
VALUE.ForEach(DoWork);
//Assert
count.Should().Be(9);
}
