test: add ~100 unit tests + bugfixes (theme-resolver, actions, services, features)
- 100% coverage on 58 src/actions/*.ts, 24 src/lib/services/*.ts, 19 src/features|db|hooks|i18n/*.ts - 3 core lib modules (theme-resolver, ip-lookup, translation-pool): 100% - ~3,000 new meaningful tests - Bugfixes: - theme-resolver: generateScopedCss now emits scoped CSS blocks (was early-return bug) - admin-radio-api-keys: blank rateLimit now uses fallback - admin-badge-upload: validation before try-block to prevent swallowed redirect - Coverage raised from 26% -> 34% statements
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@@ -0,0 +1,284 @@
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import { beforeEach, describe, expect, it, vi } from "vitest";
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const state = vi.hoisted(() => ({
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allowed: [] as string[],
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saveCmsTranslation: vi.fn(),
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translationError: vi.fn<
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(code: string, args?: { key?: string }) => string
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>(),
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patchJson5: vi.fn(),
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readFile: vi.fn(),
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writeFile: vi.fn(),
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}));
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const actionErrorClass = vi.hoisted(
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() =>
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class ActionError extends Error {
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constructor(message: string) {
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super(message);
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this.name = "ActionError";
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}
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},
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);
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vi.mock("@/lib/safe-action", () => ({
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adminAction: (
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opts: { permission?: string | readonly string[]; schema?: any },
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handler: (ctx: any) => unknown,
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) => {
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return async (input: unknown) => {
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const needed = Array.isArray(opts.permission)
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? opts.permission
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: [opts.permission ?? ""];
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if (!needed.some((slug) => state.allowed.includes(slug))) {
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return { ok: false, error: "Unauthorized" };
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}
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const ctx: any = {
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session: { user: { id: 100, name: "staff", rank: 10 } },
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};
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if (opts.schema) {
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const parsed = opts.schema.safeParse(input);
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if (!parsed.success) {
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return {
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ok: false,
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error: "Validation failed",
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fieldErrors: parsed.error.flatten().fieldErrors,
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};
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}
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ctx.data = parsed.data;
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} else {
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ctx.data = input;
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}
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try {
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return await handler(ctx);
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} catch (error) {
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if (error instanceof actionErrorClass) {
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return { ok: false, error: error.message };
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}
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throw error;
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}
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};
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},
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}));
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vi.mock("@/lib/safe-action-shared", () => ({
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ActionError: actionErrorClass,
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actionOk: (data?: unknown) => ({ ok: true, data: data ?? {} }),
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}));
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vi.mock("@/lib/permissions", () => ({
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PERMS: { SETTINGS_EDIT: "admin.settings.edit" },
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}));
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const mockRevalidatePath = vi.hoisted(() => vi.fn());
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vi.mock("next/cache", () => ({ revalidatePath: mockRevalidatePath }));
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vi.mock("next-intl/server", () => ({
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getTranslations: async () => state.translationError,
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}));
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vi.mock("node:fs/promises", () => ({
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readFile: state.readFile,
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writeFile: state.writeFile,
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mkdir: vi.fn(),
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default: { readFile: state.readFile, writeFile: state.writeFile, mkdir: vi.fn() },
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}));
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vi.mock("@/lib/cms-translations", () => ({
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CmsTranslationError: actionErrorClass,
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saveCmsTranslation: state.saveCmsTranslation,
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}));
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vi.mock("@/lib/json5-patch", () => ({
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patchJson5: state.patchJson5,
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}));
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const mockGetClientTranslationFile = vi.hoisted(() => vi.fn());
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vi.mock("@/lib/client-translation-files", async (importOriginal) => {
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const original =
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await importOriginal<typeof import("@/lib/client-translation-files")>();
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return { ...original, getClientTranslationFile: mockGetClientTranslationFile };
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});
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import { CLIENT_TRANSLATION_FILES, getClientTranslationFile } from "@/lib/client-translation-files";
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import { saveClientTranslations, saveTranslations } from "./translations";
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const snapshot = { messages: { "a.b": "x" }, revision: "ab".repeat(32) };
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beforeEach(() => {
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vi.clearAllMocks();
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state.allowed = ["admin.settings.edit"];
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state.translationError.mockImplementation(
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(code: string, args?: { key?: string }) => `[${code}:${args?.key ?? ""}]`,
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);
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mockGetClientTranslationFile.mockImplementation((id: string) =>
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CLIENT_TRANSLATION_FILES.find((f) => f.id === id),
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);
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});
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describe("saveTranslations", () => {
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it("persists a valid changeset and revalidates the layout", async () => {
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state.saveCmsTranslation.mockResolvedValue(snapshot);
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const res = await saveTranslations({
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locale: "en",
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revision: "a".repeat(64),
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changes: { "nav.home": "Home" },
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});
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expect(res).toEqual({ ok: true, data: { snapshot } });
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expect(state.saveCmsTranslation).toHaveBeenCalledWith(
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"en",
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"a".repeat(64),
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{ "nav.home": "Home" },
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);
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expect(mockRevalidatePath).toHaveBeenCalledWith("/", "layout");
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});
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it("returns a translated conflict message on CmsTranslationError", async () => {
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const err = new actionErrorClass("conflict: ");
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(err as { code: string; key: string }).code = "conflict";
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(err as { code: string; key: string }).key = "";
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state.saveCmsTranslation.mockRejectedValue(err);
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const res = await saveTranslations({
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locale: "en",
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revision: "b".repeat(64),
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changes: {},
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});
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expect(res).toEqual({ ok: false, error: "[conflict:]" });
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expect(mockRevalidatePath).not.toHaveBeenCalled();
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});
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it("passes the errored key into the translation call", async () => {
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const err = new actionErrorClass("unknownKey: k");
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(err as { code: string; key: string }).code = "unknownKey";
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(err as { code: string; key: string }).key = "missing.key";
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state.saveCmsTranslation.mockRejectedValue(err);
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const res = await saveTranslations({
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locale: "en",
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revision: "c".repeat(64),
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changes: {},
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});
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expect(res).toEqual({ ok: false, error: "[unknownKey:missing.key]" });
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});
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it("re-throws errors that are not CmsTranslationError", async () => {
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state.saveCmsTranslation.mockRejectedValue(new Error("disk full"));
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await expect(
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saveTranslations({
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locale: "en",
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revision: "d".repeat(64),
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changes: {},
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}),
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).rejects.toThrow("disk full");
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});
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it("rejects an unsupported locale and a malformed revision", async () => {
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expect(
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await saveTranslations({ locale: "xx" as never, revision: "a".repeat(64), changes: {} }),
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).toMatchObject({ ok: false, error: "Validation failed" });
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expect(
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await saveTranslations({ locale: "en", revision: "short", changes: {} }),
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).toMatchObject({ ok: false, error: "Validation failed" });
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});
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it("requires the settings edit permission", async () => {
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state.allowed = [];
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expect(
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await saveTranslations({ locale: "en", revision: "a".repeat(64), changes: {} }),
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).toEqual({ ok: false, error: "Unauthorized" });
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});
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});
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describe("saveClientTranslations", () => {
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it("reports an unknown file id", async () => {
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mockGetClientTranslationFile.mockReturnValueOnce(undefined);
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const res = await saveClientTranslations({ fileId: "badge-texts-en", data: {} });
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expect(res).toEqual({ ok: false, error: "Unknown file" });
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});
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it("refuses to write read-only files", async () => {
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const res = await saveClientTranslations({ fileId: "ui-texts-en", data: {} });
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expect(res).toEqual({ ok: false, error: "File is read-only" });
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expect(state.writeFile).not.toHaveBeenCalled();
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});
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it("round-trips a plain JSON file", async () => {
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state.readFile.mockResolvedValue('"{}"');
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const res = await saveClientTranslations({
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fileId: "badge-texts-en",
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data: { x: "y" },
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});
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expect(res).toEqual({ ok: true, data: { commentsLost: false, unpatchedKeys: [] } });
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expect(state.writeFile).toHaveBeenCalledWith(
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expect.stringContaining("badge-texts-en.json"),
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JSON.stringify({ x: "y" }, null, 4),
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"utf-8",
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);
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});
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it("writes a surgical JSON5 patch when every key is patchable", async () => {
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state.readFile.mockResolvedValue('{"greeting": "hi",}');
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state.patchJson5.mockReturnValue({ content: '{"greeting": "ciao",}', unpatchedKeys: [] });
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const res = await saveClientTranslations({
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fileId: "ui-texts-it",
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data: { greeting: "ciao" },
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});
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expect(res).toEqual({ ok: true, data: { commentsLost: false, unpatchedKeys: [] } });
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expect(state.patchJson5).toHaveBeenCalledWith(
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'{"greeting": "hi",}',
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{ greeting: "hi" },
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{ greeting: "ciao" },
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);
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expect(state.writeFile).toHaveBeenCalledWith(
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expect.stringContaining("UITexts.json5"),
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'{"greeting": "ciao",}',
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"utf-8",
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);
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});
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it("falls back to re-serialization and flags comment loss for unpatched keys", async () => {
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state.readFile.mockResolvedValue('{"known": "old",}');
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state.patchJson5.mockReturnValue({ content: '{"known": "old",}', unpatchedKeys: ["brand-new"] });
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const res = await saveClientTranslations({
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fileId: "ui-texts-it",
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data: { known: "new", "brand-new": "val" },
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});
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expect(res).toEqual({
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ok: true,
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data: { commentsLost: true, unpatchedKeys: ["brand-new"] },
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});
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expect(state.writeFile).toHaveBeenCalledWith(
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expect.stringContaining("UITexts.json5"),
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JSON.stringify({ known: "new", "brand-new": "val" }, null, 4),
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"utf-8",
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);
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});
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it("ignores non-object on-disk payloads before patching", async () => {
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state.readFile.mockResolvedValue("[1,2,3]");
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state.patchJson5.mockReturnValue({ content: "[]", unpatchedKeys: ["x"] });
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const res = await saveClientTranslations({
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fileId: "external-texts",
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data: { x: "1" },
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});
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expect(res).toEqual({ ok: true, data: { commentsLost: true, unpatchedKeys: ["x"] } });
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expect(state.patchJson5).toHaveBeenCalledWith("[1,2,3]", {}, { x: "1" });
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});
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it("validates fileId against the whitelist", async () => {
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const res = await saveClientTranslations({ fileId: "hack" as never, data: {} });
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expect(res).toMatchObject({ ok: false, error: "Validation failed" });
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});
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it("requires the settings edit permission", async () => {
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state.allowed = [];
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const res = await saveClientTranslations({ fileId: "ui-texts-it", data: {} });
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expect(res).toEqual({ ok: false, error: "Unauthorized" });
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});
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it("lets file-system errors propagate", async () => {
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state.readFile.mockRejectedValue(new Error("EACCES"));
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await expect(
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saveClientTranslations({ fileId: "ui-texts-it", data: {} }),
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).rejects.toThrow("EACCES");
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});
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});
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