Fixup tests and broken assumptions

src/battle-scene.ts

@@ -1444,7 +1444,6 @@ export default class BattleScene extends SceneBase {
 
     this.executeWithSeedOffset(
       () => {
-        console.log(`Starting a new battle with ${BattleType[newBattleType]} and double: ${newDouble}`);
         this.currentBattle = new Battle(this.gameMode, newWaveIndex, newBattleType, newTrainer, newDouble);
       },
       newWaveIndex << 3,

src/data/ability.ts

@@ -47,6 +47,7 @@ import { PokemonAnimType } from "#enums/pokemon-anim-type";
 import { StatusEffect } from "#enums/status-effect";
 import { WeatherType } from "#enums/weather-type";
 import { PokemonTransformPhase } from "#app/phases/pokemon-transform-phase";
+import { TrainerVariant } from "#app/field/trainer";
 
 export class Ability implements Localizable {
   public id: Abilities;
@@ -5573,8 +5574,8 @@ class ForceSwitchOutHelper {
 
     const party = player ? globalScene.getPlayerParty() : globalScene.getEnemyParty();
     return (!player && globalScene.currentBattle.battleType === BattleType.WILD)
-      || party.filter(p => p.isAllowedInBattle()
-        && (player || (p as EnemyPokemon).trainerSlot === (switchOutTarget as EnemyPokemon).trainerSlot)).length > globalScene.currentBattle.getBattlerCount();
+      || party.filter(p => p.isAllowedInBattle() && !p.isOnField()
+        && (player || (p as EnemyPokemon).trainerSlot === (switchOutTarget as EnemyPokemon).trainerSlot)).length > 0;
   }
 
   /**

src/data/moves/move.ts

@@ -6233,10 +6233,8 @@ export class ForceSwitchOutAttr extends MoveEffectAttr {
   apply(user: Pokemon, target: Pokemon, move: Move, args: any[]): boolean {
     // Check if the move category is not STATUS or if the switch out condition is not met
     if (!this.getSwitchOutCondition()(user, target, move)) {
-      console.log("=========== Switch out condition was false!===========");
       return false;
     }
-    console.log("=========== Switch out condition was true!===========");
 
     /** The {@linkcode Pokemon} to be switched out with this effect */
     const switchOutTarget = this.selfSwitch ? user : target;
@@ -6379,7 +6377,7 @@ export class ForceSwitchOutAttr extends MoveEffectAttr {
   }
 
   getCondition(): MoveConditionFunc {
-    return (user, target, move) => (move.category !== MoveCategory.STATUS || this.getSwitchOutCondition()(user, target, move));
+    return (user, target, move) => (move.category !== MoveCategory.STATUS || this.getSwitchOutCondition(true)(user, target, move));
   }
 
   getFailedText(_user: Pokemon, target: Pokemon, _move: Move): string | undefined {
@@ -6390,7 +6388,13 @@ export class ForceSwitchOutAttr extends MoveEffectAttr {
     }
   }
 
-  getSwitchOutCondition(): MoveConditionFunc {
+
+  /**
+   * Check if the switch out conditions are met.
+   * 
+   * @param preliminary - Whether to check for failure conditions that occur before the hit check (defaults to false)
+   */
+  getSwitchOutCondition(preliminary = false): MoveConditionFunc {
     return (user, target, move) => {
       const switchOutTarget = (this.selfSwitch ? user : target);
       const player = switchOutTarget instanceof PlayerPokemon;
@@ -6418,22 +6422,21 @@ export class ForceSwitchOutAttr extends MoveEffectAttr {
         }
       }
 
+      if (preliminary) {
+        return true;
+      }
+
       if (!player && globalScene.currentBattle.battleType === BattleType.WILD) {
-        // Prevent wild pokemon fr
-        return !(this.isBatonPass()
-            // Don't allow boss waves of wild pokemon to flee
-            && globalScene.currentBattle.waveIndex % 10 === 0
-            // Don't allow wild mons to flee with U-turn et al.
-            && this.selfSwitch && move.category !== MoveCategory.STATUS)
+        // wild pokemon cannot switch out with baton pass.
+        return !this.isBatonPass()
+                && globalScene.currentBattle.waveIndex % 10 !== 0
+                // Don't allow wild mons to flee with U-turn et al.
+                && !(this.selfSwitch && MoveCategory.STATUS !== move.category);
       }
 
       const party = player ? globalScene.getPlayerParty() : globalScene.getEnemyParty();
-      // Determine if this is a
-      const currentBattle = globalScene.currentBattle;
-      // If the trainer battle is a partner, then they can switch out as long as they have at least one pokemon in the back
-      const MIN_BATTLE_COUNT = (!player && currentBattle.trainer?.variant === TrainerVariant.DOUBLE) ? 1 : currentBattle.getBattlerCount();
-      return party.filter(p => p.isAllowedInBattle()
-          && (player || (p as EnemyPokemon).trainerSlot === (switchOutTarget as EnemyPokemon).trainerSlot)).length > MIN_BATTLE_COUNT;
+      return party.filter(p => p.isAllowedInBattle() && !p.isOnField()
+          && (player || (p as EnemyPokemon).trainerSlot === (switchOutTarget as EnemyPokemon).trainerSlot)).length > 0;
     };
   }
 

test/moves/whirlwind.test.ts

@@ -180,12 +180,15 @@ describe("Moves - Whirlwind", () => {
 
     game.move.select(Moves.SPLASH);
     game.move.select(Moves.SPLASH);
-    await game.forceEnemyMove(Moves.LUNAR_DANCE);
+    await game.forceEnemyMove(Moves.MEMENTO);
     await game.forceEnemyMove(Moves.SPLASH);
     await game.toNextTurn();
 
+    // Get the enemy pokemon id so we can check if is the same after switch.
+    const enemy_id = game.scene.getEnemyPokemon()!.id;
+
     // Hit the enemy that fainted with whirlwind.
-    game.move.select(Moves.WHIRLWIND, 0, BattlerIndex.ENEMY_2);
+    game.move.select(Moves.WHIRLWIND, 0, BattlerIndex.ENEMY);
     game.move.select(Moves.SPLASH, 1);
 
     await game.forceEnemyMove(Moves.SPLASH);
@@ -194,6 +197,22 @@ describe("Moves - Whirlwind", () => {
     await game.toNextTurn();
 
     // Expect the enemy pokemon to not have switched out.
-    expect(game.scene.getPlayerPokemon()!.getLastXMoves(1)[0].result).toBe(MoveResult.FAIL);
+    expect(game.scene.getEnemyPokemon()!.id).toBe(enemy_id);
+  });
+
+  it("should force a wild pokemon to flee", async () => {
+    game.override
+      .battleType(BattleType.WILD)
+      .moveset([Moves.WHIRLWIND, Moves.SPLASH])
+      .enemyMoveset(Moves.SPLASH)
+      .ability(Abilities.BALL_FETCH);
+    await game.classicMode.startBattle([Species.MAGIKARP]);
+
+    const user = game.scene.getPlayerPokemon()!;
+
+    game.move.select(Moves.WHIRLWIND);
+    await game.phaseInterceptor.to("BerryPhase");
+
+    expect(user.getLastXMoves(1)[0].result).toBe(MoveResult.SUCCESS);
   });
 });