public void False_UntilAllLettersPlaced()
{
WordLadder ladder = new WordLadder("test");
Assert.IsFalse(ladder.AllLettersPlaced);
ladder.AddToChain("tea", "Matches first T");
Assert.IsFalse(ladder.AllLettersPlaced);
ladder.AddToChain("tea", "Matches E");
Assert.IsFalse(ladder.AllLettersPlaced);
ladder.AddToChain("teas", "Matches S");
Assert.IsFalse(ladder.AllLettersPlaced);
ladder.AddToChain("tea", "Matches last T");
Assert.IsTrue(ladder.AllLettersPlaced);
}
public void False_UntilAllLettersPlaced()
{
WordLadder ladder = new WordLadder("test");
Assert.AreEqual("test", ladder.RemainingUnplacedLetters);
ladder.AddToChain("tea", "Matches first T");
Assert.AreEqual("est", ladder.RemainingUnplacedLetters);
ladder.AddToChain("tea", "Matches E");
Assert.AreEqual("st", ladder.RemainingUnplacedLetters);
ladder.AddToChain("teas", "Matches S");
Assert.AreEqual("t", ladder.RemainingUnplacedLetters);
ladder.AddToChain("tea", "Matches last T");
Assert.AreEqual("", ladder.RemainingUnplacedLetters);
}
public void ReturnsExpectedResult()
{
WordLadder ladder = new WordLadder("a");
ladder.AddToChain("a", "First Clue");
Assert.AreEqual("First Clue = a\r\n", ladder.DisplayChain());
}
public void MarksOffLetterFromSolution_FirstTimeOnly()
{
WordLadder ladder = new WordLadder("solution");
ladder.AddToChain("eyes", "What you see with");
var firstWordAndClue = ladder.Chain[0];
Assert.AreEqual('s', firstWordAndClue.SolutionLetter);
Assert.AreEqual(3, firstWordAndClue.SolutionLetterIndexInWord);
Assert.AreEqual(0, firstWordAndClue.SolutionLetterIndexInSolution);
ladder.AddToChain("eyes", "What you see with");
var secondWordAndClue = ladder.Chain[1];
Assert.AreEqual(char.MinValue, secondWordAndClue.SolutionLetter);
Assert.AreEqual(-1, secondWordAndClue.SolutionLetterIndexInWord);
Assert.AreEqual(-1, secondWordAndClue.SolutionLetterIndexInSolution);
}
public void RepeatWord_ReturnsTrue()
{
WordLadder ladder = new WordLadder("a");
ladder.AddToChain("a", "First Clue");
Assert.IsTrue(ladder.AlreadyContains("a"));
Assert.IsFalse(ladder.AlreadyContains("b"));
}
public void MultipleMatchingLetters_OnlyUsesFirstOne()
{
WordLadder ladder = new WordLadder("solution");
ladder.AddToChain("salt", "Spice");
var wordAndClue = ladder.Chain[0];
Assert.AreEqual('s', wordAndClue.SolutionLetter);
Assert.AreEqual(0, wordAndClue.SolutionLetterIndexInWord);
Assert.AreEqual(0, wordAndClue.SolutionLetterIndexInSolution);
}
public void MarksOffLetterFromSolution()
{
WordLadder ladder = new WordLadder("solution");
ladder.AddToChain("eyes", "What you see with");
var wordAndClue = ladder.Chain[0];
Assert.AreEqual('s', wordAndClue.SolutionLetter);
Assert.AreEqual(3, wordAndClue.SolutionLetterIndexInWord);
Assert.AreEqual(0, wordAndClue.SolutionLetterIndexInSolution);
}
public void GeneratesExpectedHtml()
{
WordLadder ladder = new WordLadder("plant");
ladder.AddToChain("plant", "Green living thing");
ladder.AddToChain("slant", "At an angle");
ladder.AddToChain("scant", "Not very many");
const string EXPECTED_HTML =
@"<html>
<body>
<!--StartFragment-->
Change one letter in each word to get the next word.
<table border=""1"">
<tr>
<td>Not very many</td>
<td> </td>
<td> </td>
<td>3</td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>At an angle</td>
<td> </td>
<td>2</td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>Green living thing</td>
<td>1</td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
</table>
Copy the letters into the solution below, using the numbers as a guide.
<table border=""1"">
<tr>
<td>Solution</td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td> </td>
<td>1</td>
<td>2</td>
<td>3</td>
<td>4</td>
<td>5</td>
</tr>
</table>
<!--EndFragment-->
</body>
</html>
";
Assert.AreEqual(EXPECTED_HTML, ladder.FormatHtmlForGoogle());
}