public void Solve_4_Sudoku()
{
// arrange
var solver = new SudokuSolver();
var actual = GetSolved4Sudoku();
actual[0, 0] = 0;
actual[0, 3] = 0;
actual[1, 1] = 0;
actual[1, 2] = 0;
actual[2, 1] = 0;
actual[2, 2] = 0;
actual[3, 0] = 0;
actual[3, 3] = 0;
//| 3|4 |
//|4 | 3|
//|1 | 2|
//| 2|1 |
// act
solver.Solve(actual);
// assert
var expected = GetSolved4Sudoku();
Assert.True(expected.Cast<int>().SequenceEqual(actual.Cast<int>()));
}
public void SolveByColumn()
{
// arrange
var solver = new SudokuSolver();
var actual = GetSolved4Sudoku();
actual[0, 0] = 0;
actual[0, 1] = 0;
actual[0, 2] = 0;
actual[0, 3] = 0;
//|0 0|0 0|
//|4 1|2 3|
//|1 4|3 2|
//|3 2|1 4|
// act
solver.Solve(actual);
// assert
var expected = GetSolved4Sudoku();
Assert.True(expected.Cast<int>().SequenceEqual(actual.Cast<int>()));
}
public void SolveByRow()
{
// arrange
var solver = new SudokuSolver();
var actual = GetSolved4Sudoku();
actual[0, 3] = 0;
actual[1, 3] = 0;
actual[2, 3] = 0;
actual[3, 3] = 0;
//|2 3|4 0|
//|4 1|2 0|
//|1 4|3 0|
//|3 2|1 0|
// act
solver.Solve(actual);
// assert
var expected = GetSolved4Sudoku();
Assert.True(expected.Cast<int>().SequenceEqual(actual.Cast<int>()));
}
public void Solve_9_Sudoku()
{
// arrange
var solver = new SudokuSolver();
var actual = GetUnSolved9Sudoku();
// act
solver.Solve(actual);
// assert
var expected = GetSolved9Sudoku();
Assert.True(expected.Cast<int>().SequenceEqual(actual.Cast<int>()));
}
public void Unsolvable()
{
// arrange
var solver = new SudokuSolver();
var actual = GetEmpty4Sudoku();
// act
solver.Solve(actual);
// assert
var expected = GetEmpty4Sudoku();
Assert.True(expected.Cast<int>().SequenceEqual(actual.Cast<int>()));
}