public void Active_ActivateCellManyTimes_CellShouldBeStillActive()
{
var grid = new Grid(10);
grid.Active(2, 5);
grid.Active(2, 5);
var result = grid.GetCellState(2, 5);
result.Should().Be(true);
}
public void CountActiveCells_ActiveCellsExists_MethodShouldReturnPositiveNumber()
{
var grid = new Grid(10);
grid.Active(3, 2);
grid.Active(4, 2);
grid.Active(4, 3);
var result = grid.CountActiveCells();
result.Should().Be(3);
}
public void GetNextGeneration_TwoActiveCellsNextToEachOtherExists_NewGenerationShouldBeEmpty(int x, int y)
{
var grid = new Grid(10);
grid.Active(5, 5);
grid.Active(x, y);
var evolution = new Evolution();
var newGeneration = evolution.GetNextGeneration(grid);
newGeneration.CountActiveCells().Should().Be(0);
}
public void GetNextGeneration_TwoPairsOfSeparatedCellsExists_NewGenerationShouldBeEmpty()
{
var grid = new Grid(10);
grid.Active(3, 3);
grid.Active(3, 4);
grid.Active(7, 6);
grid.Active(7, 7);
var evolution = new Evolution();
var newGeneration = evolution.GetNextGeneration(grid);
newGeneration.CountActiveCells().Should().Be(0);
}
public void GetNextGeneration_ThreeCellsAreDiagonallyAdjacentToEachOther_NewGenerationShouldBeReturned()
{
var grid = new Grid(10);
grid.Active(3, 3);
grid.Active(4, 4);
grid.Active(5, 3);
var evolution = new Evolution();
var newGeneration = evolution.GetNextGeneration(grid);
newGeneration.CountActiveCells().Should().Be(2);
newGeneration.GetCellState(4, 3).Should().Be(true);
newGeneration.GetCellState(4, 4).Should().Be(true);
}
public void Kill_AllCellsAreActive_AllCellsShouldBeKilled()
{
int n = 10;
var grid = new Grid(n);
for (int i = 0; i < grid.Size; ++i)
{
for (int j = 0; j < grid.Size; ++j)
{
grid.Active(i, j);
}
}
for (int i = 0; i < grid.Size; ++i)
{
for (int j = 0; j < grid.Size; ++j)
{
grid.Kill(i, j);
}
}
var activeCount = grid.CountActiveCells();
activeCount.Should().Be(0);
}
public void GetNextGeneration_ThreeCellsInRowExists_NewGenerationShouldBeReturned()
{
var grid = new Grid(10);
grid.Active(3, 4);
grid.Active(3, 5);
grid.Active(3, 6);
var evolution = new Evolution();
var newGeneration = evolution.GetNextGeneration(grid);
newGeneration.CountActiveCells().Should().Be(3);
newGeneration.GetCellState(2, 5).Should().Be(true);
newGeneration.GetCellState(3, 5).Should().Be(true);
newGeneration.GetCellState(4, 5).Should().Be(true);
}
public void Active_YIndexOfCellIsOutOfRange_MethodThrowException()
{
var grid = new Grid(10);
var exception = Assert.Throws <IndexOutOfRangeException>(()
=> grid.Active(5, 20));
Assert.IsType <IndexOutOfRangeException>(exception);
}
public void GetCellState_CellIsActive_StateIsTrue()
{
var grid = new Grid(10);
grid.Active(4, 5);
var result = grid.GetCellState(4, 5);
result.Should().Be(true);
}
public void Kill_CellIsActive_ActiveCellShouldBeKilled()
{
var grid = new Grid(10);
grid.Active(3, 5);
grid.Kill(3, 5);
var result = grid.GetCellState(3, 5);
result.Should().Be(false);
}
public void GetNextGeneration_OneActiveCellExists_NewGenerationShouldBeEmpty()
{
var grid = new Grid(10);
grid.Active(3, 4);
var evolution = new Evolution();
var newGeneration = evolution.GetNextGeneration(grid);
newGeneration.CountActiveCells().Should().Be(0);
}
public Grid GetNextGeneration(Grid currentGrid)
{
var newGrid = new Grid(currentGrid.Size);
for (int l = 1; l < currentGrid.Size - 1; l++)
{
for (int m = 1; m < currentGrid.Size - 1; m++)
{
int activeNeighbours = GetNumberOfActiveNeighbours(currentGrid, l, m);
if ((currentGrid.GetCellState(l, m) == true) && (activeNeighbours < 2))
{
newGrid.Kill(l, m);
}
else if ((currentGrid.GetCellState(l, m) == true) && (activeNeighbours > 3))
{
newGrid.Kill(l, m);
}
else if ((currentGrid.GetCellState(l, m) == false) && (activeNeighbours == 3))
{
newGrid.Active(l, m);
}
else
{
if (currentGrid.GetCellState(l, m))
{
newGrid.Active(l, m);
}
else
{
newGrid.Kill(l, m);
}
}
}
}
return(newGrid);
}
public void GetNextGeneration_GliderTest_After10InterationsThereShouldBe5ActiveCells()
{
var grid = new Grid(10);
grid.Active(2, 3);
grid.Active(3, 4);
grid.Active(4, 2);
grid.Active(4, 3);
grid.Active(4, 4);
var evolution = new Evolution();
for (int i = 0; i < 10; ++i)
{
grid = evolution.GetNextGeneration(grid);
}
grid.CountActiveCells().Should().Be(5);
grid.GetCellState(5, 6).Should().Be(true);
grid.GetCellState(6, 4).Should().Be(true);
grid.GetCellState(6, 6).Should().Be(true);
grid.GetCellState(7, 5).Should().Be(true);
grid.GetCellState(7, 6).Should().Be(true);
}
private static void SetupWithSampleData()
{
//glider
_grid.Active(2, 3);
_grid.Active(3, 4);
_grid.Active(4, 2);
_grid.Active(4, 3);
_grid.Active(4, 4);
//some random cells
_grid.Active(6, 8);
_grid.Active(6, 9);
_grid.Active(7, 9);
_grid.Active(10, 8);
_grid.Active(10, 9);
_grid.Active(11, 7);
_grid.Active(11, 13);
_grid.Active(12, 10);
_grid.Active(13, 9);
}
