fix unit test breaks

src/battle-scene.ts

@@ -1038,8 +1038,6 @@ export default class BattleScene extends SceneBase {
 
     const playerField = this.getPlayerField();
 
-    this.newArena(Biome.VOLCANO);
-
     if (this.gameMode.isFixedBattle(newWaveIndex) && trainerData === undefined) {
       battleConfig = this.gameMode.getFixedBattle(newWaveIndex);
       newDouble = battleConfig.double;

src/data/mystery-encounters/utils/encounter-phase-utils.ts

@@ -34,7 +34,7 @@ export function doTrainerExclamation(scene: BattleScene) {
   const exclamationSprite = scene.addFieldSprite(0, 0, "exclaim");
   exclamationSprite.setName("exclamation");
   scene.field.add(exclamationSprite);
-  scene.field.moveTo(exclamationSprite, scene.field.list.length - 1);
+  scene.field.moveTo(exclamationSprite, scene.field.getAll().length - 1);
   exclamationSprite.setVisible(true);
   exclamationSprite.setPosition(110, 68);
   scene.tweens.add({
@@ -475,7 +475,7 @@ export function setEncounterExp(scene: BattleScene, participantId: integer | int
     const nonFaintedPartyMembers = party.filter(p => p.hp);
     const expPartyMembers = nonFaintedPartyMembers.filter(p => p.level < scene.getMaxExpLevel());
     const partyMemberExp = [];
-    let expValue = baseExpValue * (useWaveIndex ? scene.currentBattle.waveIndex : 1) / 5 + 1;
+    let expValue = Math.floor(baseExpValue * (useWaveIndex ? scene.currentBattle.waveIndex : 1) / 5 + 1);
 
     if (participantIds?.length > 0) {
       if (scene.currentBattle.mysteryEncounter.encounterVariant === MysteryEncounterVariant.TRAINER_BATTLE) {

src/test/mystery-encounter/encounters/lost-at-sea-encounter.test.ts

@@ -122,7 +122,7 @@ describe("Lost at Sea - Mystery Encounter", () => {
 
       await runSelectMysteryEncounterOption(game, 2);
 
-      expect(blastoise.exp).toBe(expBefore + laprasSpecies.baseExp * defaultWave);
+      expect(blastoise.exp).toBe(expBefore + Math.floor(laprasSpecies.baseExp * defaultWave / 5 + 1));
     });
 
     it("should leave encounter without battle", async () => {
@@ -171,7 +171,7 @@ describe("Lost at Sea - Mystery Encounter", () => {
 
       await runSelectMysteryEncounterOption(game, 2);
 
-      expect(pidgeot.exp).toBe(expBefore + laprasBaseExp * wave);
+      expect(pidgeot.exp).toBe(expBefore + Math.floor(laprasBaseExp * defaultWave / 5 + 1));
     });
 
     it("should leave encounter without battle", async () => {

src/test/utils/mocks/mocksContainer/mockContainer.ts

@@ -154,6 +154,10 @@ export default class MockContainer {
     // Sends this Game Object to the back of its parent's display list.
   }
 
+  moveTo(obj) {
+    // Moves this Game Object to the given index in the list.
+  }
+
   moveAbove(obj) {
     // Moves this Game Object to be above the given Game Object in the display list.
   }