wehub-resource-sync
96 lines
3.1 KiB
TypeScript
96 lines
3.1 KiB
TypeScript
import { describe, expect, test } from 'vitest';
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import { resolvePlaybackCursor, EMPTY_SCENE_DWELL } from '@/lib/choreography';
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import type { Action } from '@/lib/types/action';
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import type { Scene } from '@/lib/types/stage';
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const a = (id: string): Action => ({ id, type: 'speech', text: id }) as Action;
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const sc = (id: string, actions: Action[]): Scene =>
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({
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id,
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stageId: 's',
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type: 'slide',
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title: id,
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order: 1,
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content: { type: 'slide', canvas: {} },
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actions,
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}) as unknown as Scene;
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describe('resolvePlaybackCursor', () => {
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test('returns the action at the cursor within a scene', () => {
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const scenes = [sc('S0', [a('a0'), a('a1')])];
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expect(resolvePlaybackCursor(scenes, 0, 0)).toMatchObject({
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action: { id: 'a0' },
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sceneId: 'S0',
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sceneIndex: 0,
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actionIndex: 0,
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});
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expect(resolvePlaybackCursor(scenes, 0, 1)).toMatchObject({
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action: { id: 'a1' },
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sceneId: 'S0',
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actionIndex: 1,
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});
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});
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test('advances past an exhausted scene to the next scene', () => {
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const scenes = [sc('S0', [a('a0')]), sc('S1', [a('b0')])];
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expect(resolvePlaybackCursor(scenes, 0, 1)).toMatchObject({
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action: { id: 'b0' },
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sceneId: 'S1',
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sceneIndex: 1,
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actionIndex: 0,
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});
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});
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test('returns null when all scenes are consumed', () => {
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expect(resolvePlaybackCursor([sc('S0', [a('a0')])], 0, 1)).toBeNull();
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expect(resolvePlaybackCursor([], 0, 0)).toBeNull();
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});
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test('a zero-action scene yields ONE synthetic dwell beat (not skipped)', () => {
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const scenes = [sc('S0', [])];
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expect(resolvePlaybackCursor(scenes, 0, 0)).toMatchObject({
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action: EMPTY_SCENE_DWELL,
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sceneId: 'S0',
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sceneIndex: 0,
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actionIndex: 0,
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});
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// After the dwell beat is consumed (actionIndex advanced), the scene is done.
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expect(resolvePlaybackCursor(scenes, 0, 1)).toBeNull();
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});
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test('the dwell beat is an empty-text speech (routes to the reading-timer dwell)', () => {
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expect(EMPTY_SCENE_DWELL).toMatchObject({ type: 'speech', text: '' });
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});
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test('a zero-action scene shows, then playback continues to the next scene', () => {
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const scenes = [sc('S0', []), sc('S1', [a('b0')])];
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expect(resolvePlaybackCursor(scenes, 0, 0)).toMatchObject({
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action: EMPTY_SCENE_DWELL,
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sceneId: 'S0',
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});
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expect(resolvePlaybackCursor(scenes, 0, 1)).toMatchObject({
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action: { id: 'b0' },
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sceneId: 'S1',
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sceneIndex: 1,
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actionIndex: 0,
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});
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});
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test('a zero-action scene in the middle still dwells when reached from the prior scene', () => {
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const scenes = [sc('S0', [a('a0')]), sc('S1', []), sc('S2', [a('c0')])];
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// Finished S0 (actionIndex past its single action) → advance into empty S1 → dwell.
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expect(resolvePlaybackCursor(scenes, 0, 1)).toMatchObject({
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action: EMPTY_SCENE_DWELL,
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sceneId: 'S1',
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sceneIndex: 1,
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actionIndex: 0,
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});
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// After S1's dwell → C0 on S2.
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expect(resolvePlaybackCursor(scenes, 1, 1)).toMatchObject({
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action: { id: 'c0' },
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sceneId: 'S2',
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sceneIndex: 2,
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});
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});
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});
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