public void WordIndex_Basic()
{
WordIndex index = new WordIndex(new DefaultWordSplitter());
// Verify no matches initially
Assert.AreEqual("", GetMatchExact(index, "anything"));
// Set a value
index.Index(1, "", "this is the original value!");
// Verify strings in word match
Assert.AreEqual("1", GetMatchExact(index, "this"));
Assert.AreEqual("1", GetMatchExact(index, "value"));
// Verify partial words don't match exact, do match
Assert.AreEqual("", GetMatchExact(index, "thi"));
Assert.AreEqual("1", GetMatches(index, "thi"));
// Change the value
index.Index(1, "this is the original value!", "this is the updated value!");
// Verify removed strings no longer match
Assert.AreEqual("", GetMatches(index, "original"));
// Verify maintained and added strings continue to match
Assert.AreEqual("1", GetMatchExact(index, "value"));
Assert.AreEqual("1", GetMatchExact(index, "updated"));
// Index a few more items
index.Index(2, "", "I have a different original value.");
index.Index(3, "", "value, Yet a third");
Assert.AreEqual("1, 2, 3", GetMatchExact(index, "value"));
Assert.AreEqual("2", GetMatchExact(index, "original"));
}
public override ByteBlock this[ushort lid]
{
get { return(this.Column[lid]); }
set
{
// Get and copy the old value [it may be overwritten in place, so we need a copy]
ByteBlock oldValue = this.Column[lid].Copy();
// Update the underlying value
this.Column[lid] = value;
// Make values lowercase for indexing [don't mess up casing of passed value]
ByteBlock newValue = value.Copy();
oldValue.ToLowerInvariant();
newValue.ToLowerInvariant();
// Index the updated value copies
_index.Index(lid, oldValue, newValue);
}
}
public void WordIndex_ValueRequiresSplit()
{
WordIndex index = new WordIndex(new DefaultWordSplitter());
// Verify no matches initially
Assert.AreEqual("", GetMatches(index, "will be split"));
// Set a value
index.Index(1, "", "this value will be split");
// Verify the item matches (the search term must be split)
Assert.AreEqual("1", GetMatches(index, "will be split"));
// Verify the item only matches if all terms are found
Assert.AreEqual("", GetMatches(index, "will be split also"));
}
public void WordIndex_Serialization()
{
WordIndex index = new WordIndex(new DefaultWordSplitter());
// Set a value
index.Index(1, "", "this is the original value!");
using (SerializationContext context = new SerializationContext(new MemoryStream()))
{
index.WriteBinary(context);
context.Stream.Seek(0, SeekOrigin.Begin);
WordIndex index2 = new WordIndex(new DefaultWordSplitter());
index2.ReadBinary(context);
Assert.AreEqual("1", GetMatchExact(index, "value"));
}
}
public void WordIndex_ResizeAndRemove()
{
WordIndex index = new WordIndex(new DefaultWordSplitter());
// Verify index totally empty to start
Assert.AreEqual("", GetIndexData(index));
// Add words so that we have one with all items, two with half, and several unique words
index.Index(0, "", "one sample original sample");
index.Index(1, "", "two sample original sample");
index.Index(2, "", "three sample original");
index.Index(3, "", "four other original");
index.Index(4, "", "five other original");
index.Index(5, "", "six other original");
Assert.AreEqual("0, 1, 2, 3, 4, 5", GetMatchExact(index, "original"));
Assert.AreEqual("0, 1, 2", GetMatchExact(index, "sample"));
Assert.AreEqual("0", GetMatchExact(index, "one"));
// Remove a unique word. Add a second and fourth value. Keep a word unchanged.
index.Index(0, "one sample original sample", "three other original");
Assert.AreEqual("", GetMatchExact(index, "one"));
Assert.AreEqual("0, 1, 2, 3, 4, 5", GetMatchExact(index, "original"));
Assert.AreEqual("0, 3, 4, 5", GetMatchExact(index, "other"));
Assert.AreEqual("1, 2", GetMatchExact(index, "sample"));
// Remove all other values for 'sample', verify removed
index.Index(1, "two sample original sample", "two other original");
index.Index(2, "three sample original", "three other original");
Assert.AreEqual("0, 1, 2, 3, 4, 5", GetMatchExact(index, "original"));
Assert.AreEqual("", GetMatchExact(index, "sample"));
Assert.AreEqual("0, 1, 2, 3, 4, 5", GetMatchExact(index, "other"));
// Clear values. Verify index empties
index.Index(0, "three other original", "");
index.Index(1, "two other original", "");
index.Index(2, "three other original", "");
index.Index(3, "four other original", "");
index.Index(4, "five other original", "");
index.Index(5, "six other original", "");
Assert.AreEqual("", GetIndexData(index));
}
