openreader/compute-worker/tests/compute/algorithms/pdf-parse-normalize-text-items.test.ts
Richard R 6e69b48103 chore(worker): restructure inference modules and centralize config
- Remove legacy inference and platform files from `src/inference/` and migrate responsibilities to new modular locations under `src/infrastructure/`, `src/inference/pdf/`, and `src/inference/whisper/`
- Consolidate environment/config logic into `src/infrastructure/config.ts`
- Move docstore and ffmpeg platform utilities to `src/infrastructure/platform.ts`
- Refactor PDF and Whisper inference code to use new document layout, layout model, and timestamp utilities
- Update API contracts to define and export types and constants previously scattered in inference/types
- Adjust all imports in jobs, storage, and tests to reference new module structure and type locations
- Inline parser version and encoding logic into API contracts
- Remove obsolete files and update test fixtures for new type locations

This update improves codebase modularity, maintainability, and separation of concerns. No changes to inference or orchestration functionality.

BREAKING CHANGE: inference module structure, type imports, and config utilities have changed; downstream code must update imports and integration points.
2026-06-12 14:16:13 -06:00

94 lines
2.8 KiB
TypeScript

import { describe, expect, test } from 'vitest';
import { normalizeTextItemsForLayout } from '../../../src/inference/pdf/normalize-text';
import type { TextItem } from 'pdfjs-dist/types/src/display/api';
function makeTextItem(
str: string,
transform: [number, number, number, number, number, number],
width = 100,
): TextItem {
return {
str,
transform,
width,
height: Math.abs(transform[3]),
dir: 'ltr',
fontName: 'test',
hasEOL: false,
} as unknown as TextItem;
}
describe('normalizeTextItemsForLayout', () => {
test('keeps horizontal body text and drops rotated/skewed margin text', () => {
const horizontal = makeTextItem(
'Powered by large language models',
[10, 0, 0, 10, 100, 600],
);
// Typical 90deg-ish rotated/skewed run (like side metadata labels).
const rotated = makeTextItem(
'arXiv:2407.16741v3 [cs.SE] 18 Apr 2025',
[0, 10, -10, 0, 30, 400],
);
const normalized = normalizeTextItemsForLayout([horizontal, rotated], {
height: 800,
transform: [1, 0, 0, -1, 0, 800],
}, {
test: { ascent: 0.8, descent: -0.2 },
});
expect(normalized).toHaveLength(1);
expect(normalized[0]?.text).toBe('Powered by large language models');
});
test('drops malformed/vertical-only runs so downstream layout planning sees no body text', () => {
const vertical = makeTextItem('Side label', [0, 10, -10, 0, 30, 200]);
const skewed = makeTextItem('Watermark', [10, 5, 2, 10, 200, 500]);
const normalized = normalizeTextItemsForLayout([vertical, skewed], {
height: 800,
transform: [1, 0, 0, -1, 0, 800],
}, {
test: { ascent: 0.8, descent: -0.2 },
});
expect(normalized).toEqual([]);
});
test('accounts for non-zero page origins in the viewport transform', () => {
const croppedPageLine = makeTextItem(
'Vasher turned away.',
[11.2, 0, 0, 11.2, 127.5, 644.4128],
100,
);
const normalized = normalizeTextItemsForLayout([croppedPageLine], {
height: 666.0074,
transform: [1, 0, 0, -1, -53.4352, 720.565],
}, {
test: { ascent: 0.716, descent: -0.269 },
});
expect(normalized).toHaveLength(1);
expect(normalized[0]?.x).toBeCloseTo(74.0648, 4);
expect(normalized[0]?.y).toBeCloseTo(68.1356, 2);
});
test('uses font ascent to place decorative initials closer to the visible glyph top', () => {
const dropCap = makeTextItem(
'I',
[60, 0, 0, 60, 111.1326, 434.46],
9.18,
);
const normalized = normalizeTextItemsForLayout([dropCap], {
height: 666.0074,
transform: [1, 0, 0, -1, -53.4352, 720.565],
}, {
test: { ascent: 0.638, descent: -0.134 },
});
expect(normalized).toHaveLength(1);
expect(normalized[0]?.y).toBeCloseTo(247.825, 3);
});
});