public override void DeltaPattern()
{
const int index = (int)EBands.Delta;
const int attackIndex = 1;
var expected = KnightExpected[index];
var actuals = Bands[index].Select(x => RegAttacks[attackIndex](x).Count);
actuals.Should().AllBeEquivalentTo(expected);
}
public override void DeltaPattern()
{
const int index = (int)EBands.Delta;
const int attackIndex = 2;
foreach (var pieceLocation in Bands[index])
{
var attacks = RegAttacks[attackIndex](pieceLocation);
Assert.Equal(KingExpected[index], attacks.Count);
}
}
public override void DeltaPattern()
{
const int index = (int)EBands.Delta;
const int attackIndex = 2;
var expected = KingExpected[index];
var actuals = Bands[index].Select(x => RegAttacks[attackIndex](x).Count);
foreach (var actual in actuals)
{
Assert.Equal(expected, actual);
}
}
public override void AlphaPattern()
{
const int index = (int)EBands.Alpha;
const int attackIndex = 2;
// special case, as the expected values vary depending on the kings location on the outer rim
foreach (var pieceLocation in Bands[index])
{
var attacks = RegAttacks[attackIndex](pieceLocation);
var expected = (BoardCorners & pieceLocation) != 0 ? KingExpected[index] - 2 /* for corners */ : KingExpected[index];
Assert.Equal(expected, attacks.Count);
}
}
public override void BetaPattern()
{
const int index = (int)EBands.Beta;
const int attackIndex = 1;
const ulong narrowLocations = 0x42000000004200;
foreach (var pieceLocation in Bands[index])
{
var attacks = RegAttacks[attackIndex](pieceLocation);
var expected = (narrowLocations & pieceLocation) != 0 ? KnightExpected[index] - 2 : KnightExpected[index];
Assert.Equal(expected, attacks.Count);
}
}
public override void AlphaPattern()
{
const int index = (int)EBands.Alpha;
const int attackIndex = 1;
const ulong narrowLocations = 0x4281000000008142;
foreach (var pieceLocation in Bands[index])
{
var attacks = RegAttacks[attackIndex](pieceLocation);
var expected = (BoardCorners & pieceLocation) != 0 ? KnightExpected[index] >> 1 /* for corners */ : (narrowLocations & pieceLocation) != 0 ? KnightExpected[index] - 1 /* narrowLocations */ : KnightExpected[index];
Assert.Equal(expected, attacks.Count);
}
}