public void Match1_EmptyTrie_DoesNothing()
{
Word3Trie trie = new Word3Trie();
int count = 0;
trie.Match1('a', w => ++ count);
Assert.Equal(0, count);
}
public void Match1_NoMatch_DoesNothing()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("bbb"));
int count = 0;
trie.Match1('a', w => ++ count);
Assert.Equal(0, count);
}
public void Match1_NullOnMatch_ThrowsArgumentNull()
{
Word3Trie trie = new Word3Trie();
Action <Word3> onMatch = null;
Exception e = Record.Exception(() => trie.Match1('a', onMatch));
Assert.NotNull(e);
ArgumentNullException ane = Assert.IsType <ArgumentNullException>(e);
Assert.Equal("onMatch", ane.ParamName);
}
public void Match1_WithMatches_ExecutesForEachPrefixMatch()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("aab"));
trie.Add(new Word3("aac"));
trie.Add(new Word3("bac"));
trie.Add(new Word3("baa"));
List <string> wordsSeen = new List <string>();
trie.Match1('a', w => wordsSeen.Add(w.ToString()));
wordsSeen.Sort();
Assert.Equal(2, wordsSeen.Count);
Assert.Equal("aab", wordsSeen[0]);
Assert.Equal("aac", wordsSeen[1]);
}