import { describe, expect, it } from "vite-plus/test";import * as Exit from "effect/Exit";import * as Schema from "effect/Schema"; import { WsSubscribeServerConfigRpc } from "./rpc.ts"; /** * The client always sends `environmentThemes`, including to servers built * before the field existed, whose payload schema was an empty struct. What * makes that safe is that such a schema accepts the request rather than * rejecting it -- an error here would take down the config subscription. */describe("subscribeServerConfig payload compatibility", () => {  it("is accepted by a server whose schema predates the field", () => {    const oldServerPayload = Schema.Struct({});    const decoded = Schema.decodeUnknownExit(oldServerPayload)({ environmentThemes: true });    expect(Exit.isSuccess(decoded)).toBe(true);  });   it("is carried by a server that declares it", () => {    const decoded = Schema.decodeUnknownSync(WsSubscribeServerConfigRpc.payloadSchema)({      environmentThemes: true,    });    expect(decoded).toEqual({ environmentThemes: true });  });   it("stays optional, so a client that never sends it still subscribes", () => {    const decoded = Schema.decodeUnknownSync(WsSubscribeServerConfigRpc.payloadSchema)({});    expect(decoded).toEqual({});  });});