mirror of
https://github.com/MBombeck/HealthLog.git
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Marc-André Bombeck
1f4ba5939d
One-shot prettier pass so the new format:check gate starts from a clean baseline. Formatting only — no behaviour change. Generator-owned and vendored artifacts stay untouched via .prettierignore.
137 lines
3.0 KiB
TypeScript
137 lines
3.0 KiB
TypeScript
import { describe, expect, it } from "vitest";
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import {
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AVATAR_MAX_BYTES,
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buildAvatarUrl,
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detectAvatarMimeType,
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readAvatarDimensions,
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} from "@/lib/avatar";
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/** Single 1×1 white PNG. */
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const PNG_1X1 = Buffer.from(
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"iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR4nGNgYGBgAAAABQABXvMqOgAAAABJRU5ErkJggg==",
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"base64",
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);
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/** Minimal JPEG: SOI + APP0 + SOF0(1×1) + EOI. */
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const JPEG_1X1 = Buffer.from([
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0xff,
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0xd8, // SOI
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0xff,
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0xe0,
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0x00,
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0x10,
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0x4a,
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0x46,
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0x49,
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0x46,
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0x00,
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0x01,
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0x01,
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0x00,
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0x00,
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0x01,
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0x00,
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0x01,
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0x00,
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0x00,
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0xff,
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0xc0,
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0x00,
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0x0b,
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0x08,
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0x00,
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0x01, // height = 1
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0x00,
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0x01, // width = 1
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0x01,
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0x01,
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0x11,
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0x00,
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0xff,
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0xd9, // EOI
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]);
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/**
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* Minimal lossy WebP: RIFF/WEBP + VP8 header with width=1, height=1.
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* The size + offset layout matches the parser in `readWebpDimensions`.
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*/
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const WEBP_VP8_1X1 = (() => {
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const b = Buffer.alloc(32);
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b.write("RIFF", 0, "ascii");
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b.writeUInt32LE(24, 4); // file size (informational)
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b.write("WEBP", 8, "ascii");
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b.write("VP8 ", 12, "ascii");
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b.writeUInt32LE(16, 16); // chunk size (informational)
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// VP8 frame header: 3-byte frame tag + 0x9D 0x01 0x2A signature +
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// 16-bit little-endian width / height with the top 2 bits reserved.
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b.writeUInt8(0x9d, 23);
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b.writeUInt8(0x01, 24);
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b.writeUInt8(0x2a, 25);
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b.writeUInt16LE(1, 26); // width = 1
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b.writeUInt16LE(1, 28); // height = 1
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return b;
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})();
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describe("detectAvatarMimeType", () => {
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it("identifies a PNG signature", () => {
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expect(detectAvatarMimeType(PNG_1X1)).toBe("image/png");
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});
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it("identifies a JPEG signature", () => {
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expect(detectAvatarMimeType(JPEG_1X1)).toBe("image/jpeg");
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});
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it("identifies a WebP signature", () => {
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expect(detectAvatarMimeType(WEBP_VP8_1X1)).toBe("image/webp");
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});
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it("returns null for an unsupported MIME", () => {
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expect(detectAvatarMimeType(Buffer.from("not an image, just text"))).toBe(
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null,
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);
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});
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it("returns null for a buffer too short to sniff", () => {
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expect(detectAvatarMimeType(Buffer.from([0xff, 0xd8]))).toBe(null);
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});
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});
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describe("readAvatarDimensions", () => {
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it("reads PNG dimensions from IHDR", () => {
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expect(readAvatarDimensions(PNG_1X1, "image/png")).toEqual({
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width: 1,
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height: 1,
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});
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});
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it("reads JPEG dimensions from the first SOF marker", () => {
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expect(readAvatarDimensions(JPEG_1X1, "image/jpeg")).toEqual({
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width: 1,
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height: 1,
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});
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});
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it("reads VP8 WebP dimensions", () => {
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expect(readAvatarDimensions(WEBP_VP8_1X1, "image/webp")).toEqual({
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width: 1,
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height: 1,
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});
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});
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});
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describe("buildAvatarUrl", () => {
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it("returns a relative URL with a unix-ms cache-bust suffix", () => {
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const ts = new Date(1_700_000_000_000);
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expect(buildAvatarUrl("user-abc", ts)).toBe(
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"/api/user/avatar/user-abc?v=1700000000000",
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);
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});
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});
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describe("AVATAR_MAX_BYTES", () => {
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it("caps uploads at 2 MiB", () => {
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expect(AVATAR_MAX_BYTES).toBe(2 * 1024 * 1024);
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});
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});
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