public void TestRemoveWay()
{
Way testWay = new Way();
testWay.Id = -1;
var source = new MemoryDataSource();
source.AddWay(testWay);
// test if the way is actually there.
Assert.AreEqual(testWay, source.GetWay(-1));
// remove the way.
source.RemoveWay(-1);
// test if the way is actually gone.
Assert.IsNull(source.GetWay(-1));
}