fix(news): persist publication requests and retry cache delivery

src/lib/article-request.test.ts

@@ -0,0 +1,46 @@
+import { beforeEach, expect, it } from "vitest";
+import { articleRequest } from "./article-request";
+
+const values = new Map<string, string>();
+const storage = {
+	getItem: (key: string) => values.get(key) ?? null,
+	setItem: (key: string, value: string) => {
+		values.set(key, value);
+	},
+};
+function form(body = "Private article body") {
+	const form = new FormData();
+	form.set("fullStory", body);
+	form.set("status", "published");
+	return form;
+}
+beforeEach(() => values.clear());
+it("reuses the request after a lost response and an editor reload", async () => {
+	const first = await articleRequest(form(), "staff:1:new", undefined, storage);
+	const retry = await articleRequest(form(), "staff:1:new", undefined, storage);
+	expect(retry.key).toBe(first.key);
+	expect([...values.values()].join()).not.toContain("Private article body");
+});
+it("uses a new request for changed content or a different editor", async () => {
+	const first = await articleRequest(form(), "staff:1:new", undefined, storage);
+	expect(
+		(await articleRequest(form("Changed"), "staff:1:new", first, storage)).key,
+	).not.toBe(first.key);
+	expect(
+		(await articleRequest(form(), "staff:2:new", undefined, storage)).key,
+	).not.toBe(first.key);
+});
+it("retains the in-memory request when browser storage is unavailable", async () => {
+	const blocked = {
+		getItem: () => {
+			throw Error("blocked");
+		},
+		setItem: () => {
+			throw Error("blocked");
+		},
+	};
+	const first = await articleRequest(form(), "staff:1:new", undefined, blocked);
+	expect(
+		(await articleRequest(form(), "staff:1:new", first, blocked)).key,
+	).toBe(first.key);
+});