openreader/tests/unit/whisper-alignment-mapping.vitest.spec.ts

21 lines
877 B
TypeScript

import { describe, expect, test } from 'vitest';
import {
mapWordsToSentenceOffsets,
} from '@openreader/compute-core';
describe('whisper alignment mapping', () => {
test('maps words to sentence offsets with punctuation and repeated spaces', () => {
const aligned = mapWordsToSentenceOffsets('Hello, world again.', [
{ word: 'Hello', start: 0, end: 0.25 },
{ word: 'world', start: 0.25, end: 0.5 },
{ word: 'again', start: 0.5, end: 1.0 },
]);
expect(aligned.words).toHaveLength(3);
expect(aligned.words[0].charStart).toBe(0);
expect(aligned.words[0].charEnd).toBe(5);
expect(aligned.words[1].charStart).toBeGreaterThan(aligned.words[0].charEnd);
expect(aligned.words[2].charStart).toBeGreaterThan(aligned.words[1].charEnd);
expect(aligned.words[2].charEnd).toBeLessThanOrEqual('Hello, world again.'.length);
});
});