public void IsLeap_WhenYearBC_ShouldThrowException()
{
// Arrange
var randomizer = new Random();
var year = randomizer.Next(int.MinValue, default);
// Act
Action action = () => YearExtension.IsLeap(year);
// Assert
action.Should()
.Throw <ArgumentException>()
.WithMessage("We started our chronology from the year 0.");
}
public bool IsLeap_ValidYear_ReturnsTrueOrFalse(int year)
{
return(YearExtension.IsLeap(year));
}