public void DisplayTexts_GivenTexts_ShouldDisplayTexts()
{
var texts = new List <string>
{
"1",
"2",
"Fizz",
"4",
"Buzz",
"Fizz",
"7",
"8",
"Fizz",
"Buzz",
"11",
"Fizz",
"13",
"14",
"FizzBuzz"
};
var expected = "1,2,Fizz,4,Buzz,Fizz,7,8,Fizz,Buzz,11,Fizz,13,14,FizzBuzz";
var actual = string.Empty;
void DisplayAction(string s) => actual = s;
_target.DisplayTexts(texts, DisplayAction);
expected.Should().BeEquivalentTo(actual);
}