public void LessThan_Returns_False_When_Distance_Is_Greater()
{
var smallest = new AgeDistance(sue, greg);
var greatest = new AgeDistance(sarah, sue);
Assert.False(greatest < smallest);
}
public void GreaterThan_Returns_True_When_Distance_Is_Greater()
{
var smallest = new AgeDistance(sue, greg);
var greatest = new AgeDistance(sarah, sue);
Assert.True(greatest > smallest);
}
public void Person1_Is_Always_Oldest_Person()
{
var ageDistance = new AgeDistance(greg, sue);
Assert.Same(sue, ageDistance.Person1);
Assert.Same(greg, ageDistance.Person2);
}
public void LessThan_Returns_True_When_Distance_Is_Smaller()
{
var smallest = new AgeDistance(sue, greg);
var greatest = new AgeDistance(sarah, sue);
Assert.True(smallest < greatest);
}
public void Empty_Distance_Is_Not_Smaller_Than_AnyAgeDistance()
{
var ageDistance = new AgeDistance(sue, greg);
Assert.False(AgeDistance.Empty < ageDistance);
}
public void Distance_Is_Youngest_Minus_Oldest()
{
var ageDistance = new AgeDistance(greg, sue);
Assert.Equal(greg.BirthDate - sue.BirthDate, ageDistance.Distance);
}
public void AnyAgeDistance_Is_Smaller_Than_Empty_Distance()
{
var ageDistance = new AgeDistance(sue, greg);
Assert.True(ageDistance < AgeDistance.Empty);
}
public void Person2_Is_Always_Youngest_Person()
{
var ageDistance = new AgeDistance(sue, greg);
Assert.Same(sue, ageDistance.Person1);
Assert.Same(greg, ageDistance.Person2);
}