public void Compare_ReturnsNegative_IfSecondArguementIsSmaller()
{
PriceComparerDescendingZeroFirst comparer = new PriceComparerDescendingZeroFirst();
Price p1 = new Price(2);
Price p2 = new Price(1);
int result = comparer.Compare(p1, p2);
Assert.True(result < 0, "Result should be less than 0");
}
public void Compare_ReturnsPositive_IfSecondArguementIs0()
{
PriceComparerDescendingZeroFirst comparer = new PriceComparerDescendingZeroFirst();
Price p1 = new Price(1);
Price p2 = new Price(0);
int result = comparer.Compare(p1, p2);
Assert.True(result > 0, "Result should be greater than 0");
}
public void Compare_Returns0_IfBothArguementAre0()
{
PriceComparerDescendingZeroFirst comparer = new PriceComparerDescendingZeroFirst();
Price p1 = new Price(0);
Price p2 = new Price(0);
int result = comparer.Compare(p1, p2);
Assert.True(result == 0, "Result should be greater than 0");
}
public void SortedDictionarySortsDescendingPriceLevel()
{
PriceComparerDescendingZeroFirst comparer = new PriceComparerDescendingZeroFirst();
SortedDictionary <Price, PriceLevel> sortedDictionary = new SortedDictionary <Price, PriceLevel>(comparer);
Price price1 = new Price(1);
PriceLevel level1 = new PriceLevel(price1);
sortedDictionary.Add(price1, level1);
Price price4 = new Price(4);
PriceLevel level4 = new PriceLevel(price4);
sortedDictionary.Add(price4, level4);
Price price3 = new Price(3);
PriceLevel level3 = new PriceLevel(price3);
sortedDictionary.Add(price3, level3);
Price price2 = new Price(2);
PriceLevel level2 = new PriceLevel(price2);
sortedDictionary.Add(price2, level2);
Price price0 = new Price(0);
PriceLevel level0 = new PriceLevel(price0);
sortedDictionary.Add(price0, level0);
Price price5 = new Price(5);
PriceLevel level5 = new PriceLevel(price5);
sortedDictionary.Add(price5, level5);
List <PriceLevel> expectedPriceLevelSortOrder = new List <PriceLevel>()
{
level0, level5, level4, level3, level2, level1
};
AssertHelper.SequentiallyEqual(expectedPriceLevelSortOrder, sortedDictionary.Values.ToList());
List <Price> expectedPriceSortOrder = new List <Price>()
{
price0, price5, price4, price3, price2, price1
};
AssertHelper.SequentiallyEqual(expectedPriceSortOrder, sortedDictionary.Keys.ToList());
}
public PriceComparerBenchmark()
{
_priceComparerDescending = new PriceComparerDescending();
_priceComparerDescendingZeroFirst = new PriceComparerDescendingZeroFirst();
_priceComparerAscending = new PriceComparerAscending();
}
