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SnapOtter
b1afcfdf3c
Codemod rewrites all five ad-hoc fixture-path styles to import from the typed registry (tests/fixtures/index.ts): - join(__dirname, "..", "fixtures", ...) inline patterns (100 files) - const FIXTURES = join(__dirname, ...) + join(FIXTURES, ...) (92 files) - process.cwd()-based paths (10 files) - path.resolve(__dirname, ...) patterns (5 files) Registry extended with 8 new keys (portraitJpg, portraitHeic, motorcycle, svgLogo, barcodeAvif, qrAvif, crossFormatChat, multipageTiff) and directory accessors (fixtureDir, fixtureRoot). Dynamic directory scanners (format-matrix-generated, format-matrix-multimodal, hostile-inputs) preserved via fixtureDir imports. No fixtures swapped, bytes identical. Parity gate: dropped 0, net-new 388.
106 lines
3.3 KiB
TypeScript
106 lines
3.3 KiB
TypeScript
import { createRequire } from "node:module";
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import path from "node:path";
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import { beforeAll, describe, expect, it } from "vitest";
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const require = createRequire(
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path.resolve(__dirname, "../../../packages/image-engine/src/index.ts"),
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);
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const sharp = require("sharp") as typeof import("sharp").default;
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import { saturation } from "@snapotter/image-engine";
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import { fixtures, readFixture } from "../../fixtures/index.js";
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let png200x150: Buffer;
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beforeAll(() => {
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png200x150 = readFixture(fixtures.image.base.png200);
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});
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async function getMeta(img: sharp.Sharp) {
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const buf = await img.toBuffer();
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return sharp(buf).metadata();
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}
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describe("saturation", () => {
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it("returns a Sharp instance at value 0 (no change)", async () => {
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const img = sharp(png200x150);
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const result = await saturation(img, { value: 0 });
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const meta = await getMeta(result);
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expect(meta.width).toBe(200);
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expect(meta.height).toBe(150);
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});
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it("increases saturation at value +50", async () => {
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const img = sharp(png200x150);
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const result = await saturation(img, { value: 50 });
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const buf = await result.toBuffer();
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expect(buf.length).toBeGreaterThan(0);
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});
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it("decreases saturation at value -50", async () => {
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const img = sharp(png200x150);
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const result = await saturation(img, { value: -50 });
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const buf = await result.toBuffer();
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expect(buf.length).toBeGreaterThan(0);
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});
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it("fully desaturates at value -100", async () => {
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const img = sharp(png200x150);
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const result = await saturation(img, { value: -100 });
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const buf = await result.toBuffer();
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expect(buf.length).toBeGreaterThan(0);
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});
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it("doubles saturation at value +100", async () => {
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const img = sharp(png200x150);
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const result = await saturation(img, { value: 100 });
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const buf = await result.toBuffer();
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expect(buf.length).toBeGreaterThan(0);
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});
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it("throws for value below -100", async () => {
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const img = sharp(png200x150);
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await expect(saturation(img, { value: -101 })).rejects.toThrow(
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"Saturation value must be between -100 and +100",
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);
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});
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it("throws for value above +100", async () => {
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const img = sharp(png200x150);
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await expect(saturation(img, { value: 101 })).rejects.toThrow(
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"Saturation value must be between -100 and +100",
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);
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});
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it("accepts boundary value -100", async () => {
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const img = sharp(png200x150);
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const result = await saturation(img, { value: -100 });
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const meta = await getMeta(result);
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expect(meta.width).toBe(200);
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});
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it("accepts boundary value +100", async () => {
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const img = sharp(png200x150);
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const result = await saturation(img, { value: 100 });
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const meta = await getMeta(result);
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expect(meta.width).toBe(200);
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});
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it("preserves image dimensions", async () => {
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const img = sharp(png200x150);
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const result = await saturation(img, { value: 30 });
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const meta = await getMeta(result);
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expect(meta.width).toBe(200);
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expect(meta.height).toBe(150);
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});
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it("works with JPEG input", async () => {
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const jpg = readFixture(fixtures.image.base.jpg100);
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const img = sharp(jpg);
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const result = await saturation(img, { value: 25 });
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const meta = await getMeta(result);
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expect(meta.width).toBe(100);
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expect(meta.height).toBe(100);
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});
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});
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