public void GliderMovesBoundsUp()
{
var initial = new[]
{
1, 1, 1,
0, 0, 1,
0, 1, 0,
};
var step1 = new[]
{
0, 1, 0,
0, 1, 1,
1, 0, 1,
0, 0, 0,
};
var universe = new Universe(3, 3);
universe.SetUniverse(initial);
universe.Tick();
UniverseAssert.Equal(step1, universe);
UniverseAssert.BoundsEqual(-1, -2, 3, 4, universe);
}
public void BarOscillates()
{
var step1 = new[]
{
0, 0, 0, 0, 0,
0, 0, 1, 0, 0,
0, 0, 1, 0, 0,
0, 0, 1, 0, 0,
0, 0, 0, 0, 0,
};
var step2 = new[]
{
0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
0, 1, 1, 1, 0,
0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
};
var universe = new Universe(5, 5);
universe.SetUniverse(step1);
var changed = universe.Tick();
Assert.True(changed);
UniverseAssert.Equal(step2, universe);
changed = universe.Tick();
Assert.True(changed);
UniverseAssert.Equal(step1, universe);
}
public void CellWithFourNeighborsStaysAlive()
{
var initial = new[]
{
0, 0, 0, 0, 0,
0, 0, 1, 0, 0,
0, 1, 1, 1, 0,
0, 0, 1, 0, 0,
0, 0, 0, 0, 0,
};
var universe = new Universe(5, 5);
universe.SetUniverse(initial);
var changed = universe.Tick();
Assert.True(changed);
var expected = new[]
{
0, 0, 0, 0, 0,
0, 1, 1, 1, 0,
0, 1, 0, 1, 0,
0, 1, 1, 1, 0,
0, 0, 0, 0, 0,
};
UniverseAssert.Equal(expected, universe);
}
public void IndexerChangesBounds(int x, int y, int minX, int minY, int width, int height)
{
var universe = new Universe(3, 3);
universe[x, y] = CellState.Alive;
UniverseAssert.BoundsEqual(minX, minY, width, height, universe);
}
public void GliderMovesBoundsMultipleTimes()
{
var initial = new[]
{
0, 1, 0,
0, 0, 1,
1, 1, 1,
};
var step1 = new[]
{
0, 0, 0,
1, 0, 1,
0, 1, 1,
0, 1, 0,
};
var step2 = new[]
{
0, 0, 0,
0, 0, 1,
1, 0, 1,
0, 1, 1,
};
var step3 = new[]
{
0, 0, 0, 0,
0, 1, 0, 0,
0, 0, 1, 1,
0, 1, 1, 0,
};
var universe = new Universe(3, 3);
universe.SetUniverse(initial);
universe.Tick();
UniverseAssert.Equal(step1, universe);
UniverseAssert.BoundsEqual(-1, -1, 3, 4, universe);
universe.Tick();
UniverseAssert.Equal(step2, universe);
UniverseAssert.BoundsEqual(-1, -1, 3, 4, universe);
universe.Tick();
UniverseAssert.Equal(step3, universe);
UniverseAssert.BoundsEqual(-1, -1, 4, 4, universe);
}
public void DiamondPatternStaysTheSame()
{
var initial = new[]
{
0, 0, 0, 0, 0, 0,
0, 0, 1, 1, 0, 0,
0, 1, 0, 0, 1, 0,
0, 0, 1, 1, 0, 0,
0, 0, 0, 0, 0, 0,
};
var universe = new Universe(6, 5);
universe.SetUniverse(initial);
var changed = universe.Tick();
Assert.False(changed);
UniverseAssert.Equal(initial, universe);
}
public void CellWithOnlyThreeNeighborsStaysAlive()
{
var initial = new[]
{
0, 0, 0, 0, 0,
0, 1, 1, 0, 0,
0, 1, 1, 0, 0,
0, 0, 0, 0, 0,
0, 0, 0, 0, 0,
};
var universe = new Universe(5, 5);
universe.SetUniverse(initial);
var changed = universe.Tick();
Assert.False(changed);
UniverseAssert.Equal(initial, universe);
}