public void CountTimeUnits_ReturnsZero_IfTheSameDateIsGiven()
{
//Arrange
MonthsProcessor processor = new MonthsProcessor();
DateTime baseDate = new DateTime(2017, 5, 4, 0, 0, 0);
DateTime comparedDate = new DateTime(2017, 5, 4, 0, 0, 0);
//Act
int unitsBetween = processor.CountTimeUnits(baseDate, comparedDate, 1);
//Assert
int expected = 0;
Assert.AreEqual(expected, unitsBetween);
}
public void CountTimeUnits_ReturnsProperValue_IfComparedDateIsFromPreviousYear()
{
//Arrange
MonthsProcessor processor = new MonthsProcessor();
DateTime baseDate = new DateTime(2016, 4, 20);
DateTime comparedDate = new DateTime(2012, 6, 21);
//Act
int unitsBetween = processor.CountTimeUnits(baseDate, comparedDate, 1);
//Assert
int expected = -46;
Assert.AreEqual(expected, unitsBetween);
}
public void CountTimeUnits_ReturnsZero_IfBothDatesInTheSameWeekButBaseDateIsLater()
{
//Arrange
MonthsProcessor processor = new MonthsProcessor();
DateTime baseDate = new DateTime(2016, 4, 15);
DateTime comparedDate = new DateTime(2016, 4, 2);
//Act
int unitsBetween = processor.CountTimeUnits(baseDate, comparedDate, 1);
//Assert
int expected = 0;
Assert.AreEqual(expected, unitsBetween);
}
public void CountTimeUnits_ReturnsProperValue_IfBaseDateIsEarlier()
{
//Arrange
MonthsProcessor processor = new MonthsProcessor();
DateTime baseDate = new DateTime(2016, 4, 1);
DateTime comparedDate = new DateTime(2016, 4, 21);
//Act
int unitsBetween = processor.CountTimeUnits(baseDate, comparedDate, 1);
//Assert
int expected = 0;
Assert.AreEqual(expected, unitsBetween);
}
public void CountTimeUnits_ReturnsProperValue_IfComparedDateIsNotFirstDayOfMonth()
{
//Arrange
MonthsProcessor processor = new MonthsProcessor();
DateTime baseDate = new DateTime(2016, 4, 1);
DateTime comparedDate = new DateTime(2016, 11, 16);
//Act
int unitsBetween = processor.CountTimeUnits(baseDate, comparedDate, 1);
//Assert
int expected = 7;
Assert.AreEqual(expected, unitsBetween);
}