public void should_return_lowest_above_value_for_first_and_intermidiate_elements()
{
SortedDictionary <double, double> collection = new SortedDictionary <double, double>
{
{ 0.25, 1 },
{ 0.5, 3 },
{ 0.75, 4 },
{ 1, 9 },
{ 1.25, 10 },
{ 1.5, 16 },
{ 2, 18 },
{ 3, 21 },
{ 4, 34 },
{ 5, 18 },
{ 6, 21 },
{ 7, 34 },
{ 8, 18 },
{ 9, 21 },
{ 10, 34 }
};
double val1 = 0.26;
double val2 = 0.37;
double val3 = 2.12;
double val4 = 9.25;
double key1 = Tools.FindLowestAbove(collection, val1);
double key2 = Tools.FindLowestAbove(collection, val2);
double key3 = Tools.FindLowestAbove(collection, val3);
double key4 = Tools.FindLowestAbove(collection, val4);
Assert.IsTrue(key1.Equals(0.5) && key2.Equals(0.5) && key3.Equals(3) && key4.Equals(10));
}
public void should_throw_exception_if_no_value_in_dictionary_above_the_key()
{
SortedDictionary <double, double> collection = new SortedDictionary <double, double>
{
{ 0.25, 1 },
{ 0.5, 3 },
{ 0.75, 4 },
{ 1, 9 },
{ 1.25, 10 },
{ 1.5, 16 },
{ 2, 18 },
{ 3, 21 },
{ 4, 34 },
{ 5, 18 },
{ 6, 21 },
{ 7, 34 },
{ 8, 18 },
{ 9, 21 },
{ 10, 34 }
};
double val1 = 10;
double val2 = 10.01;
int nbExceptions = 0;
try
{
double key1 = Tools.FindLowestAbove(collection, val1);
}
catch (Exception e)
{
nbExceptions++;
}
try
{
double key2 = Tools.FindLowestAbove(collection, val2);
}
catch (Exception e)
{
nbExceptions++;
}
Assert.IsTrue(nbExceptions == 2);
}