87 lines
2.4 KiB
TypeScript
87 lines
2.4 KiB
TypeScript
import { afterEach, describe, expect, it, vi } from "vitest";
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import { fetchDraft, fetchOutline } from "./server";
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// 纯加载/降级逻辑（mock fetch，无网络/DOM）：大纲解包/降级、草稿 404→null。
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function mockFetch(status: number, body: unknown): void {
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vi.stubGlobal(
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"fetch",
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vi.fn(async () =>
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new Response(JSON.stringify(body), {
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status,
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headers: { "content-type": "application/json" },
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}),
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),
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);
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}
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afterEach(() => {
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vi.unstubAllGlobals();
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});
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describe("fetchOutline", () => {
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it("returns the persisted chapters on 200", async () => {
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mockFetch(200, { chapters: [{ no: 1, volume: 1, beats: ["开场"] }] });
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const chapters = await fetchOutline("p1");
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expect(chapters).toHaveLength(1);
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expect(chapters[0]?.no).toBe(1);
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});
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it("returns empty array when the project has no outline", async () => {
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mockFetch(200, { chapters: [] });
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expect(await fetchOutline("p1")).toEqual([]);
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});
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it("falls back to empty array on any error (does not throw)", async () => {
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mockFetch(404, { error: { code: "NOT_FOUND", message: "no project" } });
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expect(await fetchOutline("missing")).toEqual([]);
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});
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});
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describe("fetchDraft", () => {
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it("returns the saved draft view on 200", async () => {
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mockFetch(200, {
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project_id: "p1",
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chapter_no: 1,
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volume: 1,
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status: "draft",
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version: 2,
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content: "第一章正文",
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length: 5,
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});
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const draft = await fetchDraft("p1", 1);
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expect(draft?.content).toBe("第一章正文");
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expect(draft?.version).toBe(2);
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});
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it("returns null when no draft exists (404 → empty editor)", async () => {
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mockFetch(404, { error: { code: "NOT_FOUND", message: "no draft" } });
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expect(await fetchDraft("p1", 9)).toBeNull();
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});
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});
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// parseJsonBody 边界校验：防御被代理/网关污染的非对象或非 JSON 响应。
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describe("parseJsonBody structural validation", () => {
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it("throws on a 200 body that is not a JSON object (primitive)", async () => {
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mockFetch(200, "surprise-string");
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await expect(fetchDraft("p1", 1)).rejects.toThrow("响应体形状异常");
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});
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it("throws when the 200 body is not valid JSON", async () => {
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vi.stubGlobal(
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"fetch",
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vi.fn(async () => new Response("<html>not json</html>", { status: 200 })),
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);
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await expect(fetchDraft("p1", 1)).rejects.toThrow("响应非 JSON");
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});
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});
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