6c7eed7580
Fresh history cut from cynarAI/evoo antigravity-handoff/project-timeline (Voice First + project timeline). Brand docs/titles as evOo; keep @rakazo/* packages as tech debt. Excludes node_modules, caches, secrets, voice blobs.
34 lines
1.1 KiB
TypeScript
34 lines
1.1 KiB
TypeScript
import { PNG } from "pngjs";
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import { describe, expect, it } from "vitest";
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import { validatePngScreenshot } from "./png-validation.js";
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function validPng() {
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return PNG.sync.write({
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width: 1,
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height: 1,
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data: Buffer.from([23, 45, 67, 255]),
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});
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}
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describe("validatePngScreenshot", () => {
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it("accepts a complete decodable PNG", () => {
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expect(() => validatePngScreenshot(validPng(), "valid.png")).not.toThrow();
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});
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it("rejects a truncated PNG with a valid signature and header", () => {
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const truncated = validPng().subarray(0, -12);
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expect(() => validatePngScreenshot(truncated, "truncated.png")).toThrow(/IEND|Truncated/);
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});
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it("rejects bytes appended after IEND", () => {
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const trailing = Buffer.concat([validPng(), Buffer.from("not-an-image")]);
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expect(() => validatePngScreenshot(trailing, "trailing.png")).toThrow(/end/);
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});
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it("rejects corrupt image data even when the PNG structure is present", () => {
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const corrupt = validPng();
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corrupt[corrupt.length - 13] ^= 0xff;
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expect(() => validatePngScreenshot(corrupt, "corrupt.png")).toThrow(/Invalid PNG/);
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});
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});
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