public void Match1_EmptyTrie_DoesNothing()
{
Word4Trie trie = new Word4Trie();
int count = 0;
trie.Match1('a', w => ++ count);
Assert.Equal(0, count);
}
public void Match1_NoMatch_DoesNothing()
{
Word4Trie trie = new Word4Trie();
trie.Add(new Word4("bbbb"));
int count = 0;
trie.Match1('a', w => ++ count);
Assert.Equal(0, count);
}
public void Match1_NullOnMatch_ThrowsArgumentNull()
{
Word4Trie trie = new Word4Trie();
Action <Word4> 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()
{
Word4Trie trie = new Word4Trie();
trie.Add(new Word4("aabc"));
trie.Add(new Word4("abcd"));
trie.Add(new Word4("bacd"));
trie.Add(new Word4("baaa"));
List <string> wordsSeen = new List <string>();
trie.Match1('a', w => wordsSeen.Add(w.ToString()));
wordsSeen.Sort();
Assert.Equal(2, wordsSeen.Count);
Assert.Equal("aabc", wordsSeen[0]);
Assert.Equal("abcd", wordsSeen[1]);
}