public void TestExtendPrefix_InvalidPrefix()
{
var trie = new PrefixTrie(
new[] { "one", "two", "three" }
);
trie.ExtendPrefix("a").Should().BeNull();
trie.ExtendPrefix("twofold").Should().BeNull();
}
public void TestExtendPrefix()
{
var trie = new PrefixTrie(
new[] { "one", "two", "three", "threshing" }
);
trie.ExtendPrefix("o").Should().Be("one");
trie.ExtendPrefix("one").Should().Be("one");
trie.ExtendPrefix("t").Should().Be("t");
trie.ExtendPrefix("th").Should().Be("thre");
}
