public void should_return_minus_one_if_value_out_of_collection_on_index_searching()
{
double[] collection = new double[] { 1, 3, 4, 9, 10, 16, 18, 21, 27, 34 };
double val1 = 40;
double val2 = -10;
int index1 = Tools.FindIndex(collection, val1);
int index2 = Tools.FindIndex(collection, val2);
Assert.IsTrue(index1 == -1 && index2 == -1);
}
public void should_return_first_last_and_middle_index_of_collection()
{
double[] collection = new double[] { 1, 3, 4, 9, 10, 16, 18, 21, 27, 34 };
double val1 = 1;
double val2 = 34;
double val3 = 16;
int index1 = Tools.FindIndex(collection, val1);
int index2 = Tools.FindIndex(collection, val2);
int index3 = Tools.FindIndex(collection, val3);
Assert.IsTrue(index1 == 0 && index2 == 9 && index3 == 5);
}