public void Remove_FirstTimeReturnsTrueNextTimeReturnsFalse()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("zzz"));
Assert.True(trie.Remove(new Word3("zzz")));
Assert.False(trie.Remove(new Word3("zzz")));
Assert.False(trie.Remove(new Word3("zzz")));
trie.Add(new Word3("zzy"));
Assert.True(trie.Remove(new Word3("zzy")));
Assert.False(trie.Remove(new Word3("zzy")));
Assert.False(trie.Remove(new Word3("zzy")));
trie.Add(new Word3("zxy"));
Assert.True(trie.Remove(new Word3("zxy")));
Assert.False(trie.Remove(new Word3("zxy")));
Assert.False(trie.Remove(new Word3("zxy")));
trie.Add(new Word3("wxy"));
Assert.True(trie.Remove(new Word3("wxy")));
Assert.False(trie.Remove(new Word3("wxy")));
Assert.False(trie.Remove(new Word3("wxy")));
}
public void Find_DisallowDuplicatesExactlyTwoMatches_ExecutesOnFoundTwice()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("abc"));
trie.Add(new Word3("abd"));
trie.Add(new Word3("bcd"));
trie.Add(new Word3("bce"));
trie.Add(new Word3("cdf"));
trie.Add(new Word3("def"));
trie.Add(new Word3("cdg"));
trie.Add(new Word3("deg"));
Word3GridFinder finder = new Word3GridFinder(trie, false);
List <Word3Grid> grids = new List <Word3Grid>();
finder.Find(new Word3("abc"), g => grids.Add(g));
Assert.Equal(2, grids.Count);
Assert.Equal(new Word3("abc"), grids[0].Row1);
Assert.Equal(new Word3("bcd"), grids[0].Row2);
Assert.Equal(new Word3("def"), grids[0].Row3);
Assert.Equal(new Word3("abc"), grids[1].Row1);
Assert.Equal(new Word3("bcd"), grids[1].Row2);
Assert.Equal(new Word3("deg"), grids[1].Row3);
}
public void Find_AllowDuplicatesMatchesFirstAndSecondRowButNoOtherWords_DoesNothing()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("abc"));
trie.Add(new Word3("bzz"));
Word3GridFinder finder = new Word3GridFinder(trie, true);
int count = 0;
finder.Find(new Word3("abc"), g => ++ count);
Assert.Equal(0, count);
}
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]);
}
private static void MismatchOnLastColumnInnerTest(bool allowDuplicateWords)
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("art"));
trie.Add(new Word3("loo"));
trie.Add(new Word3("lek"));
trie.Add(new Word3("all"));
trie.Add(new Word3("roe"));
Word3GridFinder finder = new Word3GridFinder(trie, allowDuplicateWords);
int count = 0;
finder.Find(new Word3("art"), g => ++ count);
Assert.Equal(0, count);
}
public void Find_DisallowDuplicatesNoMatchesWithFiveWordsMatchingLastRowAndColumn_DoesNothing()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("abc"));
trie.Add(new Word3("aad"));
trie.Add(new Word3("aac"));
trie.Add(new Word3("bad"));
trie.Add(new Word3("cde"));
Word3GridFinder finder = new Word3GridFinder(trie, false);
int count = 0;
finder.Find(new Word3("abc"), g => ++ count);
Assert.Equal(0, count);
}
public void Find_AllowDuplicatesExactlyOneMatchWithThreeWords_ExecutesOnFoundOnce()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("abc"));
trie.Add(new Word3("bcd"));
trie.Add(new Word3("cde"));
Word3GridFinder finder = new Word3GridFinder(trie, true);
List <Word3Grid> grids = new List <Word3Grid>();
finder.Find(new Word3("abc"), g => grids.Add(g));
Assert.Equal(1, grids.Count);
Assert.Equal(new Word3("abc"), grids[0].Row1);
Assert.Equal(new Word3("bcd"), grids[0].Row2);
Assert.Equal(new Word3("cde"), grids[0].Row3);
}
public void Contains_ReturnsTrueIfFoundFalseOtherwise()
{
Word3Trie trie = new Word3Trie();
Assert.False(trie.Contains(new Word3("abc")));
trie.Add(new Word3("abc"));
Assert.True(trie.Contains(new Word3("abc")));
Assert.False(trie.Contains(new Word3("abd")));
trie.Add(new Word3("abd"));
Assert.True(trie.Contains(new Word3("abd")));
trie.Remove(new Word3("abc"));
Assert.False(trie.Contains(new Word3("abc")));
}
public void Match2_NoMatch_DoesNothing()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("bbb"));
int count = 0;
trie.Match2('b', 'a', w => ++ count);
Assert.Equal(0, count);
}
private static void MatchInputWordButNoOtherWordsInnerTest(bool allowDuplicateWords)
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("abc"));
Word3GridFinder finder = new Word3GridFinder(trie, allowDuplicateWords);
int count = 0;
finder.Find(new Word3("abc"), g => ++ count);
Assert.Equal(0, count);
}
public void Enumerator_YieldsEveryValue()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("aab"));
trie.Add(new Word3("abc"));
trie.Add(new Word3("aba"));
trie.Add(new Word3("bbc"));
trie.Add(new Word3("baa"));
List <string> wordsSeen = new List <string>();
foreach (Word3 word in trie)
{
wordsSeen.Add(word.ToString());
}
wordsSeen.Sort();
Assert.Equal(5, wordsSeen.Count);
Assert.Equal("aab", wordsSeen[0]);
Assert.Equal("aba", wordsSeen[1]);
Assert.Equal("abc", wordsSeen[2]);
Assert.Equal("baa", wordsSeen[3]);
Assert.Equal("bbc", wordsSeen[4]);
}
public void Find_DisallowDuplicatesNoMatchesWithSixWords_DoesNothing()
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("abc"));
trie.Add(new Word3("abd"));
trie.Add(new Word3("bcd"));
trie.Add(new Word3("bce"));
trie.Add(new Word3("def"));
trie.Add(new Word3("cdg"));
Word3GridFinder finder = new Word3GridFinder(trie, false);
int count = 0;
finder.Find(new Word3("abc"), g => ++ count);
Assert.Equal(0, count);
}
private static void FindOneMatchSixWordsInnerTest(bool allowDuplicateWords)
{
Word3Trie trie = new Word3Trie();
trie.Add(new Word3("pro"));
trie.Add(new Word3("hop"));
trie.Add(new Word3("ids"));
trie.Add(new Word3("phi"));
trie.Add(new Word3("rod"));
trie.Add(new Word3("ops"));
Word3GridFinder finder = new Word3GridFinder(trie, allowDuplicateWords);
List <Word3Grid> grids = new List <Word3Grid>();
finder.Find(new Word3("pro"), g => grids.Add(g));
Assert.Equal(1, grids.Count);
Assert.Equal(new Word3("pro"), grids[0].Row1);
Assert.Equal(new Word3("hop"), grids[0].Row2);
Assert.Equal(new Word3("ids"), grids[0].Row3);
}