public void Example_BottomLeftCell_IsNotUniquelyDetermined()
{
WordSudoku sudoku = new WordSudoku("shoe")
{
Grid =
{
[0] = "0123",
[1] = "3012",
[2] = "2301",
[3] = "1230"
}
};
sudoku.RefreshPartialGrid();
sudoku.PartialGrid[0] = "____";
sudoku.PartialGrid[1] = "3012";
sudoku.PartialGrid[2] = "2301";
sudoku.PartialGrid[3] = "1230";
sudoku.SetBlank(sudoku.PartialGrid, 3, 0);
Assert.AreEqual("_230", sudoku.PartialGrid[3]);
sudoku.SetBlank(sudoku.PartialGrid, 2, 3);
Assert.AreEqual("230_", sudoku.PartialGrid[2]);
}
public void Partial_ReturnsExpectedString()
{
WordSudoku sudoku = new WordSudoku("shoe")
{
Grid =
{
[0] = "0123",
[1] = "3012",
[2] = "2301",
[3] = "1230"
}
};
sudoku.RefreshPartialGrid();
sudoku.PartialGrid[0] = "____";
sudoku.PartialGrid[1] = "3_1_";
sudoku.PartialGrid[2] = "__01";
sudoku.PartialGrid[3] = "_23_";
const string EXPECTED_TEXT =
@"
E H
S H
O E
";
Assert.AreEqual(EXPECTED_TEXT, sudoku.FormatForGoogle());
}
public void Partial_ReturnsExpectedString()
{
WordSudoku sudoku = new WordSudoku("shoe")
{
Grid =
{
[0] = "0123",
[1] = "3012",
[2] = "2301",
[3] = "1230"
}
};
sudoku.RefreshPartialGrid();
sudoku.PartialGrid[0] = "____";
sudoku.PartialGrid[1] = "3_1_";
sudoku.PartialGrid[2] = "__01";
sudoku.PartialGrid[3] = "_23_";
const string EXPECTED_HTML =
@"<html>
<body>
<!--StartFragment-->
Fill in each row and column using the letters below so that the same letter does not appear twice in any row or column.
Then read the solution to the puzzle from the highlighted squares.
<table border=""1"">
<tr>
<td> </td>
<td> </td>
<td> </td>
<td> </td>
</tr>
<tr>
<td>E</td>
<td> </td>
<td>H</td>
<td> </td>
</tr>
<tr>
<td> </td>
<td> </td>
<td>S</td>
<td>H</td>
</tr>
<tr>
<td> </td>
<td>O</td>
<td>E</td>
<td> </td>
</tr>
<!--EndFragment-->
</table>
</body>
</html>
";
Assert.AreEqual(EXPECTED_HTML, sudoku.FormatHtmlForGoogle());
}
public void AllSizes_HaveDefaultGrid()
{
for (int i = 2; i < 9; i++)
{
// ReSharper disable StringLiteralTypo
var substring = "abcdefghij".Substring(i);
// ReSharper restore StringLiteralTypo
Console.WriteLine($"Creating puzzle of length {substring.Length}");
var puzzle = new WordSudoku(substring, 1);
Assert.IsNotNull(puzzle);
}
}
private static void AssertFollowsSudokuConstructionRules(string[] sudokuGrid, int size = 4)
{
List <string> uniqueLines = new List <string>();
foreach (string line in sudokuGrid)
{
for (int i = 0; i < size; i++)
{
StringAssert.Contains(i.ToString(), line); //expect to see each number in each line exactly once.
}
Assert.IsFalse(WordSudoku.ContainsDuplicateLetters(line));
Assert.IsFalse(uniqueLines.Contains(line), "Expected each line to be unique.");
uniqueLines.Add(line);
}
}
public void Full_ReturnsExpectedString()
{
WordSudoku sudoku = new WordSudoku("shoe")
{
Grid =
{
[0] = "0123",
[1] = "3012",
[2] = "2301",
[3] = "1230"
}
};
const string EXPECTED_TEXT =
@"S H O E
E S H O
O E S H
H O E S
";
Assert.AreEqual(EXPECTED_TEXT, sudoku.FormatForGoogle(false));
}
public void Example_BottomLeftCell_IsNotUniquelyDetermined()
{
WordSudoku sudoku = new WordSudoku("shoe")
{
Grid =
{
[0] = "0123",
[1] = "3012",
[2] = "2301",
[3] = "1230"
}
};
sudoku.RefreshPartialGrid();
sudoku.PartialGrid[0] = "____";
sudoku.PartialGrid[1] = "3_1_";
sudoku.PartialGrid[2] = "__01";
sudoku.PartialGrid[3] = "_23_";
Assert.IsFalse(sudoku.IsUniquelyDetermined(3, 0, sudoku.PartialGrid));
}
public void SupportedNumber_ReturnsCorrectlyConstructedSudokuPuzzle(int size)
{
AssertFollowsSudokuConstructionRules(WordSudoku.ReturnCannedGridForLength(size), size);
}
public void GeneratesGrid()
{
WordSudoku sudoku = new WordSudoku("shoe");
AssertFollowsSudokuConstructionRules(sudoku.Grid);
}
