Files
MorphDoc/packages/document-visual-diff/tests/snapshot.test.ts
T

41 lines
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TypeScript

import { describe, expect, it } from "vitest";
import { createPdfDocumentSnapshot } from "../src/index.js";
import { createMinimalPdf } from "./pdf-fixture.js";
describe("PDF.js 页面快照", () => {
it("从真实 PDF 同时提取纸张、文本和稳定 PNG", async () => {
const pdf = createMinimalPdf();
const first = await createPdfDocumentSnapshot(pdf, {
source: { kind: "custom", label: "fixture" },
dpi: 144,
});
const second = await createPdfDocumentSnapshot(pdf, {
source: { kind: "custom", label: "fixture" },
dpi: 144,
});
expect(first.pageCount).toBe(1);
expect(first.pages[0]?.widthPt).toBeCloseTo(595, 3);
expect(first.pages[0]?.heightPt).toBeCloseTo(842, 3);
expect(first.contentText).toContain("Visual diff fixture");
expect(first.pages[0]?.raster).toMatchObject({
widthPx: 1190,
heightPx: 1684,
dpi: 144,
});
expect(first.pages[0]?.raster?.png.byteLength).toBeGreaterThan(1000);
expect(first.pages[0]?.raster?.sha256).toBe(
second.pages[0]?.raster?.sha256,
);
});
it("允许关闭栅格输出以执行轻量结构门禁", async () => {
const snapshot = await createPdfDocumentSnapshot(createMinimalPdf(), {
source: { kind: "custom", label: "fixture" },
includeRaster: false,
});
expect(snapshot.pages[0]?.raster).toBeUndefined();
});
});