public void TestTryRoutines()
{
BTreeDictionary <int, string> data = new BTreeDictionary <int, string>(Comparer);
Assert.IsTrue(data.TryAdd(1, "a"));
Assert.IsFalse(data.TryAdd(1, "a"));
Assert.IsTrue(data.TryUpdate(1, "a"));
Assert.IsTrue(data.TryUpdate(1, "c"));
Assert.IsTrue(data.TryUpdate(1, "d", "c"));
Assert.IsFalse(data.TryUpdate(1, "f", "c"));
Assert.AreEqual("d", data[1]);
Assert.IsTrue(data.TryUpdate(1, "a", data[1]));
Assert.AreEqual("a", data[1]);
Assert.IsFalse(data.TryUpdate(2, "b"));
string val;
Assert.IsTrue(data.TryRemove(1, out val) && val == "a");
Assert.IsFalse(data.TryRemove(2, out val));
Assert.AreNotEqual(val, "a");
}
void SequencedTest(int start, int incr, int stop, string name)
{
int count = Math.Abs(start - stop) / Math.Abs(incr);
const string myTestValue1 = "T1", myTestValue2 = "t2";
string test;
BTreeDictionary <int, string> data = new BTreeDictionary <int, string>(Comparer);
Stopwatch time = new Stopwatch();
time.Start();
//large order-forward
for (int i = start; i != stop; i += incr)
{
if (!data.TryAdd(i, myTestValue1))
{
throw new ApplicationException();
}
}
Trace.TraceInformation("{0} insert {1} in {2}", name, count, time.ElapsedMilliseconds);
time.Reset();
time.Start();
for (int i = start; i != stop; i += incr)
{
if (!data.TryGetValue(i, out test) || test != myTestValue1)
{
throw new ApplicationException();
}
}
Trace.TraceInformation("{0} seek {1} in {2}", name, count, time.ElapsedMilliseconds);
time.Reset();
time.Start();
for (int i = start; i != stop; i += incr)
{
if (!data.TryUpdate(i, myTestValue2))
{
throw new ApplicationException();
}
}
Trace.TraceInformation("{0} modify {1} in {2}", name, count, time.ElapsedMilliseconds);
time.Reset();
time.Start();
for (int i = start; i != stop; i += incr)
{
if (!data.TryGetValue(i, out test) || test != myTestValue2)
{
throw new ApplicationException();
}
}
Trace.TraceInformation("{0} seek#2 {1} in {2}", name, count, time.ElapsedMilliseconds);
time.Reset();
time.Start();
int tmpCount = 0;
foreach (KeyValuePair <int, string> tmp in data)
{
if (tmp.Value != myTestValue2)
{
throw new ApplicationException();
}
else
{
tmpCount++;
}
}
if (tmpCount != count)
{
throw new ApplicationException();
}
Trace.TraceInformation("{0} foreach {1} in {2}", name, count, time.ElapsedMilliseconds);
time.Reset();
time.Start();
for (int i = start; i != stop; i += incr)
{
if (!data.Remove(i))
{
throw new ApplicationException();
}
}
Trace.TraceInformation("{0} delete {1} in {2}", name, count, time.ElapsedMilliseconds);
for (int i = start; i != stop; i += incr)
{
if (data.TryGetValue(i, out test))
{
throw new ApplicationException();
}
}
}