test(plugin25): expand CardTest

Author: xeruf

plugin2025/src/test/kotlin/sc/plugin2025/CardTest.kt

@@ -3,29 +3,39 @@ package sc.plugin2025
 import io.kotest.core.spec.style.FunSpec
 import io.kotest.matchers.*
 import io.kotest.matchers.collections.*
+import io.kotest.matchers.nulls.*
 import sc.plugin2025.util.HuIConstants
 
 class CardTest: FunSpec({
     context(Card.SWAP_CARROTS.name) {
         val state = GameState()
+        Card.SWAP_CARROTS.check(state) shouldBe null
+        state.currentPlayer.addCard(Card.SWAP_CARROTS)
+        
+        val lastSalad = state.board.getPreviousField(Field.SALAD).shouldNotBeNull()
+        lastSalad shouldBe HuIConstants.LAST_SALAD
+        
         test("allowed only before last salad") {
-            Card.SWAP_CARROTS.check(state) shouldBe null
-            val lastSalad = state.board.getPreviousField(Field.SALAD)
-            lastSalad shouldBe HuIConstants.LAST_SALAD
-            state.currentPlayer.position = lastSalad!!
+            state.currentPlayer.position = lastSalad
             Card.SWAP_CARROTS.check(state) shouldBe HuIMoveMistake.CANNOT_PLAY_SWAP_CARROTS_BEYOND_LAST_SALAD
-            state.currentPlayer.position = state.board.getPreviousField(Field.HARE, lastSalad)!!
+        }
+        test("generate correct moves") {
+            val previousHare = state.board.getPreviousField(Field.HARE, lastSalad).shouldNotBeNull()
+            state.currentPlayer.position = previousHare - 1
+            state.possibleCardMoves(1) shouldContainExactly listOf(Advance(1, Card.SWAP_CARROTS))
+            state.currentPlayer.position = previousHare
             Card.SWAP_CARROTS.check(state) shouldBe null
-            state.currentPlayer.addCard(Card.SWAP_CARROTS)
             state.nextCards() shouldContainExactly listOf(arrayOf(Card.SWAP_CARROTS))
+            
+            val nextHare = state.board.getNextField(Field.HARE, previousHare).shouldNotBeNull()
+            state.possibleCardMoves(nextHare - previousHare).shouldBeEmpty()
+            
             state.otherPlayer.position = lastSalad
             Card.SWAP_CARROTS.check(state) shouldBe HuIMoveMistake.CANNOT_PLAY_SWAP_CARROTS_BEYOND_LAST_SALAD
             state.nextCards().shouldBeEmpty()
         }
-        state.currentPlayer.addCard(Card.SWAP_CARROTS)
         test("not repeatable") {
-            Card.SWAP_CARROTS.check(state) shouldBe null
-            state.currentPlayer.position = state.board.getNextField(Field.HARE)!! - 1
+            state.currentPlayer.position = state.board.getNextField(Field.HARE).shouldNotBeNull() - 1
             state.performMoveDirectly(Advance(1, Card.SWAP_CARROTS))
             Card.SWAP_CARROTS.check(state) shouldBe HuIMoveMistake.CANNOT_PLAY_SWAP_CARROTS_ALREADY_PLAYED
             state.performMoveDirectly(state.getSensibleMoves().first())