public void GetNeighboringCells_GridIsSingleRowTargetIsFirstCell_ReturnsSingRightNeighbor()
{
var grid = new CellularGrid(1, 5, new InitRule());
var neighbors = grid.GetNeighboringCells(0, 0).ToArray();
Assert.AreEqual(neighbors.Single().Column, 1);
}
public void GetNeighboringCells_GridIsOnlyOneCell_ReturnsEmptyCollection()
{
var grid = new CellularGrid(1, 1, new InitRule());
var actual = grid.GetNeighboringCells(0, 0);
CollectionAssert.IsEmpty(actual);
}
public void GetNeighboringCells_GridIsSingleColumnTargetIsFirstCell_ReturnsSingBelowNeighbor()
{
var grid = new CellularGrid(5, 1, new InitRule());
var neighbors = grid.GetNeighboringCells(0, 0);
Assert.AreEqual(neighbors.Count(), 1);
Assert.AreEqual(neighbors.Single().Row, 1);
Assert.AreEqual(neighbors.Single().Column, 0);
}
public void GetNeighboringCells_GridIsSingleRowTargetIsLastCell_ReturnsSingLeftNeighbor()
{
var columnCount = 5;
var grid = new CellularGrid(1, columnCount, new InitRule());
var lastColumn = columnCount - 1;
var neighbors = grid.GetNeighboringCells(0, lastColumn).ToArray();
Assert.AreEqual(neighbors.Count(), 1);
Assert.AreEqual(neighbors.Single().Row, 0);
Assert.AreEqual(neighbors.Single().Column, lastColumn - 1);
}
public void GetNeighboringCells_GridIsSingleColumnCellInMiddle_ReturnsSingleNeighbor()
{
var grid = new CellularGrid(10, 1, new InitRule());
var targetRow = 5;
var neighbors = grid.GetNeighboringCells(targetRow, 0);
var rowIndices = new[] { targetRow - 1, targetRow + 1 };
var rowInCount = neighbors.Count(neighbor => rowIndices.Contains(neighbor.Row));
Assert.AreEqual(neighbors.Count(), 2);
Assert.AreEqual(rowInCount, 2);
}
public void GetNeighboringCells_GridIsSingleRowCellInMiddle_ReturnsSingleNeighbor()
{
var grid = new CellularGrid(1, 10, new InitRule());
var targetCol = 5;
var neighbors = grid.GetNeighboringCells(0, targetCol).ToArray();
var colIndices = new[] { targetCol - 1, targetCol + 1 };
var colInCount = neighbors.Count(neighbor => colIndices.Contains(neighbor.Column));
Assert.AreEqual(neighbors.Count(), 2);
Assert.AreEqual(colInCount, 2);
}
public void GetNeighboringCells_GridIsSingleColumnTargetIsLastCell_ReturnsSingAboveNeighbor()
{
var rowCount = 5;
var grid = new CellularGrid(rowCount, 1, new InitRule());
var lastRow = rowCount - 1;
var neighbors = grid.GetNeighboringCells(lastRow, 0).ToArray();
Assert.AreEqual(neighbors.Count(), 1);
Assert.AreEqual(neighbors.Single().Row, lastRow - 1);
Assert.AreEqual(neighbors.Single().Column, 0);
}
public void GetNeighboringCells_NegativeArguments_ThrowsException()
{
Assert.Throws <ArgumentOutOfRangeException>(() => _grid.GetNeighboringCells(-1, -1));
Assert.Throws <ArgumentOutOfRangeException>(() => _grid.GetNeighboringCells(1, -1));
Assert.Throws <ArgumentOutOfRangeException>(() => _grid.GetNeighboringCells(-1, 1));
}