91 lines
3.3 KiB
TypeScript
91 lines
3.3 KiB
TypeScript
import { describe, it, expect } from "vitest";
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import {
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validateEcommerceImageFiles,
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summarizeRejectedImages,
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normalizeEcommerceImageMime,
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ECOMMERCE_MAX_IMAGE_BYTES,
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} from "./ecommerceImageValidation";
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function makeFile(name: string, type: string, size: number): File {
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return new File([new Uint8Array(size)], name, { type });
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}
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describe("validateEcommerceImageFiles", () => {
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it("accepts supported types under the size limit", () => {
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const result = validateEcommerceImageFiles([
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makeFile("a.png", "image/png", 1024),
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makeFile("b.jpg", "image/jpeg", 1024),
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makeFile("c.webp", "image/webp", 1024),
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makeFile("d.gif", "image/gif", 1024),
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]);
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expect(result.accepted).toHaveLength(4);
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expect(result.rejected).toHaveLength(0);
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});
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it("rejects unsupported mime types", () => {
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const result = validateEcommerceImageFiles([makeFile("x.bmp", "image/bmp", 1024)]);
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expect(result.accepted).toHaveLength(0);
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expect(result.rejected[0]).toMatchObject({ name: "x.bmp", reason: "不支持的图片格式" });
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});
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it("rejects files over 10MB", () => {
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const result = validateEcommerceImageFiles([
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makeFile("big.png", "image/png", ECOMMERCE_MAX_IMAGE_BYTES + 1),
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]);
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expect(result.accepted).toHaveLength(0);
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expect(result.rejected[0]).toMatchObject({ name: "big.png", reason: "图片超过 10MB" });
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});
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it("accepts exactly 10MB (boundary)", () => {
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const result = validateEcommerceImageFiles([
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makeFile("edge.png", "image/png", ECOMMERCE_MAX_IMAGE_BYTES),
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]);
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expect(result.accepted).toHaveLength(1);
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});
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it("partitions a mixed batch", () => {
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const result = validateEcommerceImageFiles([
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makeFile("ok.png", "image/png", 100),
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makeFile("bad.bmp", "image/bmp", 100),
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makeFile("huge.jpg", "image/jpeg", ECOMMERCE_MAX_IMAGE_BYTES + 1),
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]);
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expect(result.accepted).toHaveLength(1);
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expect(result.rejected).toHaveLength(2);
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});
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});
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describe("summarizeRejectedImages", () => {
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it("returns empty string for no rejections", () => {
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expect(summarizeRejectedImages([])).toBe("");
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});
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it("summarizes a single rejection", () => {
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expect(summarizeRejectedImages([{ name: "a.bmp", reason: "不支持的图片格式" }])).toBe(
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"a.bmp 已跳过：不支持的图片格式",
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);
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});
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it("appends count suffix for multiple rejections", () => {
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const summary = summarizeRejectedImages([
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{ name: "a.bmp", reason: "不支持的图片格式" },
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{ name: "b.bmp", reason: "不支持的图片格式" },
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]);
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expect(summary).toBe("a.bmp 等 2 个文件 已跳过：不支持的图片格式");
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});
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});
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describe("normalizeEcommerceImageMime", () => {
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it("passes through supported types", () => {
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expect(normalizeEcommerceImageMime("image/png")).toBe("image/png");
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expect(normalizeEcommerceImageMime("image/jpeg")).toBe("image/jpeg");
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expect(normalizeEcommerceImageMime("image/webp")).toBe("image/webp");
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expect(normalizeEcommerceImageMime("image/gif")).toBe("image/gif");
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});
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it("falls back to image/png for unsupported or empty types", () => {
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expect(normalizeEcommerceImageMime("image/bmp")).toBe("image/png");
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expect(normalizeEcommerceImageMime("")).toBe("image/png");
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expect(normalizeEcommerceImageMime("application/octet-stream")).toBe("image/png");
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});
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});
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