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src/components/CharacterAnimator.test.tsx

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+// @vitest-environment jsdom
+
+import { render, screen } from '@testing-library/react';
+import { describe, expect, it } from 'vitest';
+
+import { AnimationState, type Character } from '../types';
+import { CharacterAnimator } from './CharacterAnimator';
+
+function buildCharacter(overrides: Partial<Character> = {}): Character {
+  return {
+    id: 'generated-role',
+    name: '沈砺',
+    title: '守灯人',
+    description: '',
+    backstory: '',
+    avatar: '/generated/portrait.png',
+    portrait: '/generated/portrait.png',
+    assetFolder: 'custom-world',
+    assetVariant: 'generated',
+    attributes: {} as Character['attributes'],
+    personality: '',
+    skills: [],
+    adventureOpenings: {},
+    ...overrides,
+  };
+}
+
+describe('CharacterAnimator portrait fallbacks', () => {
+  it('keeps idle fallback static on the portrait when idle animation is missing', () => {
+    render(
+      <CharacterAnimator
+        state={AnimationState.IDLE}
+        character={buildCharacter()}
+      />,
+    );
+
+    const image = screen.getByRole('img', {
+      name: /沈砺 idle animation/i,
+    }) as HTMLImageElement;
+
+    expect(image.getAttribute('src')).toBe('/generated/portrait.png');
+    expect(image.style.transform).toBe('');
+  });
+
+  it('uses a fallen portrait fallback when death animation is missing', () => {
+    render(
+      <CharacterAnimator
+        state={AnimationState.DIE}
+        character={buildCharacter()}
+      />,
+    );
+
+    const image = screen.getByRole('img', {
+      name: /沈砺 die animation/i,
+    }) as HTMLImageElement;
+
+    expect(image.getAttribute('src')).toBe('/generated/portrait.png');
+    expect(image.style.animation).toContain(
+      'character-animator-portrait-death-fall',
+    );
+    expect(image.style.transform).toContain('rotate(90deg)');
+    expect(image.style.transform).toContain('scaleX(-1)');
+  });
+});