func TestEvaluateMaterial(t *testing.T) {
board := gmc.MustParseFen("r4rk1/2pp1ppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQ c3 0 12")
v := evaluateMaterial(board)
if v < 23.5 || v > 24.5 {
t.Errorf("Expected material advantage for white to be around 24. Actual value: %v", v)
}
}
func ExampleEngine() {
var e Engine
defer e.Quit()
e.SetPosition(chess.MustParseFen(""))
for info := range e.SearchDepth(6) {
if err := info.Err(); err != nil {
log.Fatal(err)
} else if move, ok := info.BestMove(); ok {
log.Print("the best move is", move)
} else {
log.Print(info.Pv(), info.Stats())
}
}
}
func TestStockfish(t *testing.T) {
if true {
return
}
var logger *log.Logger //= log.New(stdout, "", log.LstdFlags)
e, err := Run("stockfish", nil, logger)
if err != nil {
t.Fatalf("%s", err)
}
defer e.Quit()
opt := e.Options()
w := tabwriter.NewWriter(stdout, 1, 8, 0, ' ', 0)
for k, v := range opt {
fmt.Fprintln(w, k, "\t", v)
}
w.Flush()
board := chess.MustParseFen("5r2/pqN1Qpk1/2r3pp/2n1R3/5R2/6P1/4PPKP/8 w - - 0 1")
e.SetPosition(board)
for info := range e.SearchDepth(18) {
if info.Err() != nil {
t.Fatalf("%s", info.Err())
}
if m, ok := info.BestMove(); ok {
log.Println("bestmove:", m.San(board))
} else if pv := info.Pv(); pv != nil {
log.Println("pv:", pv)
log.Println("stats:", info.Stats())
} else {
log.Println("stats:", info.Stats(), info.(Info).line)
}
}
}
func main() {
board := gmc.MustParseFen("r4rk1/2pp1ppp/8/8/5P2/8/PPPPP1PP/RNBQKBNR b KQ c3 0 12")
moves := board.LegalMoves()
fmt.Printf(moves[0].San(board))
fmt.Printf("\n")
}
func TestEngine(t *testing.T) {
var logger *log.Logger //= log.New(stdout, "", log.LstdFlags)
r0, w0 := io.Pipe()
r1, w1 := io.Pipe()
go fakeEngine(r1, w0)
e, err := initialise(r0, w1, w1, logger)
if err != nil {
log.Fatal("engine initialisation failed:", err)
}
defer e.Quit()
// test options
opts := e.Options()
if opts == nil {
t.Fatal("no options returned")
}
for _, o := range optionTests {
opt := opts[o.name]
if opt == nil {
t.Errorf("option %q not found", o.name)
continue
}
if o.set != "" {
opt.Set(o.set)
}
switch want := o.value.(type) {
case string:
s := opt.(*StringOption)
if got := s.String(); got != want {
t.Errorf("option %q: want %q, got %q", o.name, want, got)
}
case int:
i := opt.(*IntOption)
if got := i.Int(); got != want {
t.Errorf("option %q: want %d, got %d", o.name, want, got)
}
case bool:
b := opt.(*BoolOption)
if got := b.Bool(); got != want {
t.Errorf("option %q: want %v, got %v", o.name, want, got)
}
}
}
// test search
board := chess.MustParseFen("")
board = board.MakeMove(chess.Move{chess.E2, chess.E4, 0})
e.SetPosition(board)
infoc := e.SearchDepth(1)
for _, i := range infoTests {
info := <-infoc
if info == nil {
t.Fatal("got nil info instead of:", i.line)
}
if err := info.Err(); err != nil {
t.Fatal("search returned error:", err)
}
if move, ok := info.BestMove(); ok {
if move != *i.bestmove {
t.Errorf("bestmove mismatch: got %v, want %v: %s",
move, *i.bestmove, info.(Info).line)
}
} else if pv := info.Pv(); pv != nil {
if pv.Score != i.pvscore {
t.Errorf("score mismatch: got %d, want %d: %s",
pv.Score, i.pvscore, info.(Info).line)
}
} else {
stats := info.Stats()
if *stats != *i.stats {
t.Errorf("stats mismatch: got %v, want %v: %s",
stats, i.stats, info.(Info).line)
}
}
}
if info := <-infoc; info != nil {
t.Error("spurious info:", info.(Info))
}
}