public void When_UsersIsNull_Expect_AverageToBeZero()
{
// arrange
ThisDateTimeProvider now = new ThisDateTimeProvider(1999, 1, 1);
MeaningfulCalculator mc = new MeaningfulCalculator(now);
double expected = 0;
// act
double actual = mc.AverageAge(null);
// assert
Assert.AreEqual(expected, actual);
}
public void When_NoUsers_Expect_AverageToBeZero()
{
// arrange
ThisDateTimeProvider now = new ThisDateTimeProvider(1999, 1, 1);
MeaningfulCalculator mc = new MeaningfulCalculator(now);
var Users = MakeSampleUsers(0);
double expected = 0;
// act
double actual = mc.AverageAge(Users);
// assert
Assert.AreEqual(expected, actual);
}
public void When_UsersIsNonNull_Expect_AverageToBeNonZero()
{
// arrange
ThisDateTimeProvider now = new ThisDateTimeProvider(1999, 1, 1);
MeaningfulCalculator mc = new MeaningfulCalculator(now);
List <UserBLL> Users = MakeSampleUsers(4);
double expected = 0;
// act
double actual = mc.AverageAge(Users);
// assert
Assert.AreNotEqual(expected, actual);
}
