public void SegmentGetNextItem()
{
var segment = Segment <long?, int> .Create(4);
var traits = new SegmentTraits();
long?[] items = new long?[] { 34L, 2L, 94L, 236L, 41L, 34928L, 222L, 345L, 123L, 1092L, 347L };
for (int i = 0, end = items.Length; i != end; ++i)
{
long?oldItem;
segment.InsertItem(ref items[i], out oldItem, traits);
}
int iterator = -1;
int count = 0;
long? storedItem;
List <long?> itemsList = new List <long?>(items);
while ((iterator = segment.GetNextItem(iterator, out storedItem, traits)) >= 0)
{
++count;
Assert.IsTrue(itemsList.Contains(storedItem), "Received unexpected item from GetNextItem.");
itemsList.Remove(storedItem);
}
Assert.AreEqual(items.Length, count, "Unexpected number of items returned.");
}
public void SegmentGetOldest()
{
var segment = Segment <long?, int> .Create(4);
var traits = new SegmentTraits();
long?[] items = new long?[] { 34L, 2L, 94L, 236L, 41L, 34928L, 222L, 345L, 123L, 1092L, 347L };
for (int i = 0, end = items.Length; i != end; ++i)
{
long?oldItem;
Assert.IsFalse(segment.GetOldestItem(ref items[i], out oldItem, traits), "Unique keys, should not expect an older item.");
Assert.AreEqual(items[i], oldItem, "Should receive newly inserted item.");
}
for (int i = 0, end = items.Length; i != end; ++i)
{
long?oldItem;
Assert.IsTrue(segment.InsertItem(ref items[i], out oldItem, traits), "Duplicate keys, expect older items");
Assert.AreEqual(items[i], oldItem, "Should receive correct older item.");
}
Assert.AreEqual(
segment._Count,
items.Length,
"Number of items in segment doesn't match number of unique inserts"
);
}
public void SegmentFindItem()
{
var segment = Segment <long?, int> .Create(4);
var traits = new SegmentTraits();
long?[] items = new long?[] { 34L, 2L, 94L, 236L, 41L, 34928L, 222L, 345L, 123L, 1092L, 347L };
for (int i = 0, end = items.Length; i != end; ++i)
{
long?oldItem;
Assert.IsFalse(segment.InsertItem(ref items[i], out oldItem, traits), "Unique keys, should not expect a replace.");
}
int[] searchKeys = new int[] { 2, 34928, 1092, 222, 94, 34, 347, 123, 41, 345 };
for (int i = 0, end = searchKeys.Length; i != end; ++i)
{
long?foundItem;
Assert.IsTrue(segment.FindItem(ref searchKeys[i], out foundItem, traits), "Expected to find an item.");
Assert.AreEqual(foundItem, (long?)searchKeys[i], "Found item not expected value.");
}
int[] searchKeys2 = new int[] { 12, 0, 13, 55, 1000, 10, 20, 124, 42, 345345 };
for (int i = 0, end = searchKeys2.Length; i != end; ++i)
{
long?foundItem;
Assert.IsFalse(segment.FindItem(ref searchKeys2[i], out foundItem, traits), "Expected not to find an item.");
}
}
public void SegmentClear()
{
var segment = Segment <long?, int> .Create(4);
var traits = new SegmentTraits();
long?[] items = new long?[] { 34L, 2L, 94L, 236L, 41L, 34928L, 222L, 345L, 123L, 1092L, 347L };
for (int i = 0, end = items.Length; i != end; ++i)
{
long?oldItem;
segment.InsertItem(ref items[i], out oldItem, traits);
}
segment.Clear(traits);
Assert.AreEqual(segment._Count, 0, "Expected segment to be empty after Clear().");
int[] searchKeys = new int[] { 2, 34928, 1092, 222, 94, 34, 347, 123, 41, 345 };
for (int i = 0, end = searchKeys.Length; i != end; ++i)
{
long?foundItem;
Assert.IsFalse(segment.FindItem(ref searchKeys[i], out foundItem, traits), "Expected not to find an item after Clear().");
}
}
public void SegmentInserts()
{
var segment = Segment <long?, int> .Create(4);
var traits = new SegmentTraits();
long?[] items = new long?[] { 34L, 2L, 94L, 236L, 41L, 34928L, 222L, 345L, 123L, 1092L, 347L };
for (int i = 0, end = items.Length; i != end; ++i)
{
long?oldItem;
bool res = segment.InsertItem(ref items[i], out oldItem, traits);
Assert.IsFalse(res, "Unique inserts in empty table should return false.");
}
Assert.AreEqual(
items.Length,
segment._Count,
"Number of items in segment doesn't match number of inserts"
);
var it = -1;
long?item;
while ((it = segment.GetNextItem(it, out item, traits)) >= 0)
{
Assert.IsTrue(
items.Contains(item),
"Item not present in inserted items collection."
);
}
}