Start implementing the crafty AI

system/src/main/scala/ai/CraftyAi.scala

@@ -0,0 +1,16 @@
+package lila.system
+package ai
+
+import lila.chess.{ Game, Move }
+import model.DbGame
+
+final class CraftyAi(
+  execPath: String = "crafty",
+  bookPath: Option[String] = None
+) extends Ai {
+
+  def apply(dbGame: DbGame): Valid[(Game, Move)] = {
+
+    failure("Not implemented" wrapNel)
+  }
+}

system/src/main/scala/ai/StupidAi.scala

@@ -2,8 +2,7 @@ package lila.system
 package ai
 
 import lila.chess.{ Game, Move }
-import model._
-import scala.util.Random
+import model.DbGame
 
 final class StupidAi extends Ai {
 

system/src/test/scala/AiTest.scala

@@ -5,11 +5,12 @@ import model._
 import ai._
 import scalaz.Success
 
-class StupidAiTest extends SystemTest {
+trait AiTest extends SystemTest {
 
-  val ai = new StupidAi
+  def ai: Ai
+  def name: String
 
-  "the stupid AI" should {
+  "the %s AI" format name should {
     "play the first move" in {
       val dbGame = newDbGame
       ai(dbGame) must beSuccess.like {

system/src/test/scala/CraftyAiTest.scala

@@ -0,0 +1,9 @@
+package lila.system
+
+import ai._
+
+class CraftyAiTest extends AiTest {
+
+  def ai = new CraftyAi
+  def name = "crafty"
+}

system/src/test/scala/StupidAiTest.scala

@@ -0,0 +1,9 @@
+package lila.system
+
+import ai._
+
+class StupidAiTest extends AiTest {
+
+  def ai = new StupidAi
+  def name = "stupid"
+}