public void StepForward_GivenEventHandlerIsAttached_CallsHandler()
{
// arrange
var mockRules = new Mock <RulesBase>(new[] { 1 }, new[] { 2 });
var game = new LinqGame(mockRules.Object);
int numberOfTimesCalled = 0;
game.GameStepEvent += (sender, args) => { ++numberOfTimesCalled; };
// act
game.StepForward();
// assert
Assert.AreEqual(1, numberOfTimesCalled);
}
public void StepForward_GivenEmptyUniverse_ResultsInEmptyUniverse()
{
// arrange
var game = new LinqGame(new StandardRules());
// act
game.StepForward();
// assert
Assert.AreEqual(
expected: 0,
actual: game.Population,
message: "The universe is not empty.");
Assert.AreEqual(
expected: 1,
actual: game.Generation,
message: "The game did not progress by one generation.");
}
public void StepForward_GivenFivePointAndEventHandler_ResultsInPopulationOfFourAndFiveRemoved()
{
// arrange
var pattern = new FivePoint();
var game = new LinqGame(new StandardRules());
object sender = null;
GameStepEventArgs eventArgs = null;
EventHandler <GameStepEventArgs> handler = (object s, GameStepEventArgs e) =>
{
sender = s;
eventArgs = e;
};
game.InitializeFrom(pattern.GetPattern());
game.GameStepEvent += handler;
// act
game.StepForward();
// assert
Assert.AreEqual(
expected: 4,
actual: game.Population,
message: "The universe does not contain exactly 4 cells.");
Assert.AreSame(
expected: game,
actual: sender,
message: "Incorrect sender reference in event handler.");
Assert.AreEqual(
expected: 5,
actual: eventArgs.DeadCells.Count(),
message: "The set of removed cells does not contain exactly 5 cells.");
Assert.AreEqual(
expected: 4,
actual: eventArgs.NewCells.Count(),
message: "The set of added cells does not contain exactly 4 cells.");
}
public void StepForward_GivenFivePoint_ResultsInPopulationOfFour()
{
// arrange
var pattern = new FivePoint();
var game = new LinqGame(new StandardRules());
game.InitializeFrom(pattern.GetPattern());
// act
game.StepForward();
// assert
Assert.AreEqual(
expected: 4,
actual: game.Population,
message: "The universe does not contain exactly 4 cells.");
Assert.AreEqual(
expected: 1,
actual: game.Generation,
message: "The game did not progress by one generation.");
}