102 lines
3.2 KiB
TypeScript
102 lines
3.2 KiB
TypeScript
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import { describe, expect, it } from "vitest";
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import {
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advanceCatchUpWindow,
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chatBadge,
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mergeChatMessages,
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messageError,
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rootReadIsProven,
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} from "./chat-utils";
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describe("chat client state", () => {
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it("retains through across pages, then starts a new interval after exhaustion", () => {
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const first = advanceCatchUpWindow(
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{ after: "5" },
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{ next: "8", through: "10", hasMore: true },
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);
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expect(first).toEqual({ after: "8", through: "10" });
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const second = advanceCatchUpWindow(first, {
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next: "9",
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through: "10",
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hasMore: true,
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});
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expect(second).toEqual({ after: "9", through: "10" });
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expect(
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advanceCatchUpWindow(second, {
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next: "9",
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through: "10",
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hasMore: false,
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}),
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).toEqual({ after: "10" });
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});
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it("does not lose the cursor on a stalled page or fold concurrent sends into the old interval", () => {
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const window = { after: "8", through: "10" };
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expect(
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advanceCatchUpWindow(window, { next: "8", through: "10", hasMore: true }),
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).toBe(window);
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expect(
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advanceCatchUpWindow(window, {
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next: "10",
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through: "10",
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hasMore: false,
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}),
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).toEqual({ after: "10" });
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expect(
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advanceCatchUpWindow(
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{ after: "10" },
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{ next: "11", through: "12", hasMore: true },
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),
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).toEqual({ after: "11", through: "12" });
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});
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it("never replaces a newer edit or tombstone with an older page", () => {
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const original = {
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id: "m",
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sequence: "1",
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revision: 1,
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body: "old",
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status: "active",
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};
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const edited = { ...original, revision: 2, body: "new" };
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const deleted = { ...edited, revision: 3, body: "", status: "deleted" };
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expect(mergeChatMessages([edited], [original])).toEqual([edited]);
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expect(mergeChatMessages([deleted], [edited])).toEqual([deleted]);
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});
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it("requires a channel-wide scan and does not claim unseen replies as read", () => {
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expect(rootReadIsProven("20", null, null, "0")).toBe(false);
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expect(rootReadIsProven("20", "19", null, "0")).toBe(false);
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expect(rootReadIsProven("20", "25", "18", "0")).toBe(false);
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expect(rootReadIsProven("20", "25", "22", "0")).toBe(true);
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});
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it("deduplicates history and catch-up in sequence order", () => {
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expect(
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mergeChatMessages(
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[
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{ id: "b", sequence: "9" },
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{ id: "a", sequence: "2" },
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],
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[
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{ id: "b", sequence: "9" },
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{ id: "c", sequence: "10" },
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],
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).map((m) => m.id),
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).toEqual(["a", "b", "c"]);
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});
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it("distinguishes unread dots from numeric direct and mention activity", () => {
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expect(
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chatBadge({ unreadCount: 3, mentionCount: 0, directUnreadCount: 0 }),
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).toEqual({ dot: true, count: 0 });
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expect(
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chatBadge({ unreadCount: 3, mentionCount: 2, directUnreadCount: 1 }),
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).toEqual({ dot: true, count: 3 });
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});
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it("maps failed sends to actionable messages", () => {
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expect(messageError("NOT_FOUND")).toMatch(/access/i);
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expect(messageError("CONFLICT")).toMatch(/different message/i);
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expect(messageError("INTERNAL_SERVER_ERROR")).toMatch(/retry/i);
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});
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});
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