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src/hooks/rpg-runtime-story/storyChoiceRuntime.test.ts

@@ -272,6 +272,35 @@ describe('storyChoiceRuntime', () => {
     );
   });
 
+  it('keeps defeated hostile reward render keys unique for duplicate monster ids', async () => {
+    rollHostileNpcLootMock.mockResolvedValue([]);
+
+    const reward = await buildHostileNpcBattleReward(
+      createState({
+        inBattle: true,
+        sceneHostileNpcs: [
+          { id: 'monster-16', name: '雷翼甲' },
+          { id: 'monster-16', name: '雷翼乙', xMeters: 4.1, yOffset: 32 },
+        ] as GameState['sceneHostileNpcs'],
+        currentBattleNpcId: null,
+      }),
+      createState({
+        inBattle: false,
+        sceneHostileNpcs: [],
+      }),
+      'battle',
+      (state) => state.sceneHostileNpcs,
+    );
+
+    expect(reward?.defeatedHostileNpcs).toHaveLength(2);
+    expect(reward?.defeatedHostileNpcs.map((npc) => npc.id)).toEqual([
+      'monster-16',
+      'monster-16',
+    ]);
+    expect(new Set(reward?.defeatedHostileNpcs.map((npc) => npc.renderKey)).size)
+      .toBe(2);
+  });
+
   it('applies server runtime responses and falls back locally when the request fails', async () => {
     const gameState = createState();
     const currentStory = createStory('当前故事');