Test forsyth (FEN) export

chess/src/main/scala/format/Forsyth.scala

@@ -0,0 +1,17 @@
+package lila.chess
+package format
+
+import Pos.posAt
+
+/**
+ * Transform a game to standard Forsyth Edwards Notation
+ * http://en.wikipedia.org/wiki/Forsyth%E2%80%93Edwards_Notation
+ */
+object Forsyth extends Format[Game] {
+
+  def <<(source: String): Game = {
+    Game()
+  }
+
+  def >>(game: Game): String = ""
+}

chess/src/test/scala/format/ForsythTest.scala

@@ -0,0 +1,43 @@
+package lila.chess
+package format
+
+import Pos._
+
+class ForsythTest extends ChessTest {
+
+  val f = Forsyth
+
+  "the forsyth notation" should {
+    "export" in {
+      val moves = List(E2 -> E4, C7 -> C5, G1 -> F3, G8 -> H6, A2 -> A3)
+      "new game" in {
+        f >> Game() must_== "rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1"
+      }
+      "one move" in {
+        Game().playMoveList(moves take 1) must beSuccess.like {
+          case g => f >> g must_== "rnbqkbnr/pppppppp/8/8/4P3/8/PPPP1PPP/RNBQKBNR b KQkq e3 0 1"
+        }
+      }
+      "2 moves" in {
+        Game().playMoveList(moves take 2) must beSuccess.like {
+          case g => f >> g must_== "rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq c6 0 2"
+        }
+      }
+      "3 moves" in {
+        Game().playMoveList(moves take 3) must beSuccess.like {
+          case g => f >> g must_== "rnbqkbnr/pp1ppppp/8/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R b KQkq - 1 2"
+        }
+      }
+      "4 moves" in {
+        Game().playMoveList(moves take 4) must beSuccess.like {
+          case g => f >> g must_== "rnbqkb1r/pp1ppppp/7n/2p5/4P3/5N2/PPPP1PPP/RNBQKB1R w KQkq - 2 3"
+        }
+      }
+      "5 moves" in {
+        Game().playMoveList(moves take 5) must beSuccess.like {
+          case g => f >> g must_== "rnbqkb1r/pp1ppppp/7n/2p5/4P3/P4N2/1PPP1PPP/RNBQKB1R b KQkq - 0 3"
+        }
+      }
+    }
+  }
+}