Files
SnapOtter/tests/unit/api/beautify-shadow.test.ts
T
SnapOtter 1727a7a73e test: reorganize flat test files into purpose-based subdirectories (phase 6)
Group 245 flat integration tests and 25 loose unit tests into
discoverable subdirectories per spec section 6:

  integration/tools/{image,video,audio,document,data}/  (156 files)
  integration/platform/                                  (64 files)
  integration/generated/                                 (14 files)
  integration/security/                                  (10 files)

  unit/security/     (8 files, new subdir)
  unit/api/          (7 files moved in)
  unit/web/          (3 files moved in)
  unit/shared/       (6 files moved in)
  unit/image-engine/ (1 file moved in)

All moves via git mv (history preserved). Relative imports repaired
for both depth levels (platform/generated/security = +1, tools/ = +2):
static from-imports, dynamic import() calls, vi.mock() paths,
import.meta.dirname joins, and __dirname joins.

Vitest discovery unchanged (no test.include in config, recursive glob
matches subdirs, shard-by-hash unaffected). test-server.ts and
tool-route-drift.test.ts stay at integration root. fixtures/ untouched.

Parity gate: 13189 passing test names before = 13189 after (0 dropped).
2026-06-20 05:07:46 +08:00

88 lines
2.4 KiB
TypeScript

import sharp from "sharp";
import { describe, expect, it } from "vitest";
import { applyShadow } from "../../../apps/api/src/lib/beautify/shadow.js";
describe("applyShadow", () => {
const makeImage = (w: number, h: number) =>
sharp({
create: {
width: w,
height: h,
channels: 4,
background: { r: 100, g: 100, b: 255, alpha: 1 },
},
})
.png()
.toBuffer();
it("returns larger buffer with shadow applied", async () => {
const img = await makeImage(200, 150);
const result = await applyShadow(img, {
blur: 20,
offsetX: 0,
offsetY: 10,
color: "#000000",
opacity: 30,
});
const meta = await sharp(result.buffer).metadata();
expect(meta.width).toBeGreaterThan(200);
expect(meta.height).toBeGreaterThan(150);
expect(result.padLeft).toBeGreaterThanOrEqual(0);
expect(result.padTop).toBeGreaterThanOrEqual(0);
});
it("returns image position within shadow canvas", async () => {
const img = await makeImage(200, 150);
const result = await applyShadow(img, {
blur: 20,
offsetX: 5,
offsetY: 10,
color: "#000000",
opacity: 50,
});
expect(result.imgX).toBeDefined();
expect(result.imgY).toBeDefined();
});
it("handles zero-blur shadow gracefully", async () => {
const img = await makeImage(100, 100);
const result = await applyShadow(img, {
blur: 0,
offsetX: 0,
offsetY: 0,
color: "#000000",
opacity: 0,
});
const meta = await sharp(result.buffer).metadata();
expect(meta.width).toBeGreaterThanOrEqual(100);
});
it("handles negative offsets", async () => {
const img = await makeImage(200, 150);
const result = await applyShadow(img, {
blur: 15,
offsetX: -10,
offsetY: -5,
color: "#ff0000",
opacity: 40,
});
const meta = await sharp(result.buffer).metadata();
expect(meta.width).toBeGreaterThan(200);
expect(meta.height).toBeGreaterThan(150);
});
it("produces RGBA output with alpha channel", async () => {
const img = await makeImage(100, 100);
const result = await applyShadow(img, {
blur: 10,
offsetX: 0,
offsetY: 5,
color: "#000000",
opacity: 30,
});
const meta = await sharp(result.buffer).metadata();
expect(meta.hasAlpha).toBe(true);
expect(meta.channels).toBe(4);
});
});