public void NextGeneration_Reproduction_CellRevived()
{
// Arrange
var neighbourCounterSvc = new NeighborCounterServiceBuilder()
.CountReturns(3) // exactly three live neighbours
.Build();
var oldGenGrid = new GridBuilder()
.WithRows(1)
.WithCols(1)
.Build();
// Act
var sut = _createTestSubject(neighbourCounterSvc);
var newGenGrid = sut.NextGeneration(oldGenGrid);
// Assert: Cell revived due to reproduction
Assert.IsTrue(newGenGrid[0][0].IsAlive);
}
public void NextGeneration_With3Neighbours_CellLives()
{
// Arrange
var neighbourCounterSvc = new NeighborCounterServiceBuilder()
.CountReturns(3)
.Build();
var oldGenGrid = new GridBuilder()
.WithRows(1)
.WithCols(1)
.WithActiveCell(1, 1)
.Build();
// Act
var sut = _createTestSubject(neighbourCounterSvc);
var newGenGrid = sut.NextGeneration(oldGenGrid);
// Assert
Assert.IsTrue(newGenGrid[0][0].IsAlive);
}
public void NextGeneration_Underpopulation_CellDies()
{
// Arrange
var neighbourCounterSvc = new NeighborCounterServiceBuilder()
.CountReturns(Faker.RandomNumber.Next(0, 1))
.Build();
var oldGenGrid = new GridBuilder()
.WithRows(1)
.WithCols(1)
.WithActiveCell(1, 1)
.Build();
// Act
var sut = _createTestSubject(neighbourCounterSvc);
var newGenGrid = sut.NextGeneration(oldGenGrid);
// Assert: Died due to underpopulation
Assert.IsFalse(newGenGrid[0][0].IsAlive);
}