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import { cleanup, fireEvent, render, screen } from "@testing-library/svelte";
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
import type { PendingInput } from "../pending-inputs";
import { createChatStore } from "../store.svelte";
import {
createFakeCache,
createFakeHistorySync,
createFakeMetricsSync,
createFakeTransport,
} from "../test-helpers";
import PendingInputs from "./PendingInputs.svelte";
function input(requestId: string, type: "chat.send" | "chat.queue" = "chat.send"): PendingInput {
return {
request: {
...(type === "chat.send" ? { type, message: requestId } : { type, text: requestId }),
conversationId: "c",
requestId,
images: [{ url: "data:image/png;base64,AAAA", mimeType: "image/png" }],
},
};
}
beforeEach(() => vi.useFakeTimers());
afterEach(() => {
cleanup();
const remaining = vi.getTimerCount();
vi.useRealTimers();
expect(remaining).toBe(0);
});
describe("pending input warning grace period", () => {
it.each([
"chat.send",
"chat.queue",
] as const)("renders no %s recovery UI before 1000 ms, then keeps its content stable", async (type) => {
const { container } = render(PendingInputs, {
inputs: [input("saved message", type)],
onDiscard: vi.fn(),
});
expect(container.children).toHaveLength(0);
expect(container.textContent).toBe("");
await vi.advanceTimersByTimeAsync(999);
expect(container.children).toHaveLength(0);
expect(container.textContent).toBe("");
expect(screen.queryByRole("status")).toBeNull();
await vi.advanceTimersByTimeAsync(1);
const warning = screen.getByRole("status");
expect(warning).toHaveTextContent("Delivery unconfirmed. Your input is saved on this device.");
expect(warning).toHaveTextContent(
"Check the conversation history before sending again to avoid a duplicate.",
);
expect(screen.getByRole("textbox", { name: "Saved message" })).toHaveValue("saved message");
expect(screen.getByRole("img", { name: "Saved attachment" })).toHaveAttribute(
"src",
"data:image/png;base64,AAAA",
);
const content = warning.innerHTML;
await vi.advanceTimersByTimeAsync(10_000);
expect(screen.getByRole("status")).toBe(warning);
expect(warning.innerHTML).toBe(content);
});
it.each([
"confirmation",
"discard",
])("%s before the threshold cancels the timer and never flashes later", async (resolution) => {
const transport = createFakeTransport();
const save = vi.fn();
const store = createChatStore({
conversationId: "c",
createRequestId: () => "first",
transport: transport.impl,
historySync: createFakeHistorySync().impl,
metricsSync: createFakeMetricsSync().impl,
cache: createFakeCache().impl,
pendingInputStorage: { load: () => [], save },
});
try {
store.send("first");
// Saving and transmission stay immediate, independent of warning display.
expect(save).toHaveBeenCalledExactlyOnceWith(store.pendingInputs);
expect(transport.sent).toHaveLength(1);
const { container, rerender } = render(PendingInputs, {
inputs: store.pendingInputs,
onDiscard: store.discardPendingInput,
});
await vi.advanceTimersByTimeAsync(999);
if (resolution === "confirmation") {
store.handleDelta({ type: "chat.accepted", conversationId: "c", requestId: "first" });
} else {
store.discardPendingInput("first");
}
expect(store.pendingInputs).toEqual([]);
expect(save).toHaveBeenLastCalledWith([]);
await rerender({ inputs: store.pendingInputs });
expect(vi.getTimerCount()).toBe(0);
expect(container.children).toHaveLength(0);
expect(container.textContent).toBe("");
await vi.advanceTimersByTimeAsync(10_000);
expect(container.children).toHaveLength(0);
expect(container.textContent).toBe("");
} finally {
store.dispose();
}
});
it("hides an already visible warning immediately on confirmation", async () => {
const { container, rerender } = render(PendingInputs, {
inputs: [input("first")],
onDiscard: vi.fn(),
});
await vi.advanceTimersByTimeAsync(1000);
expect(screen.getByRole("status")).toBeInTheDocument();
await rerender({ inputs: [] });
expect(container.children).toHaveLength(0);
expect(container.textContent).toBe("");
});
it("preserves the discard action and hides the saved copy without another delay", async () => {
const onDiscard = vi.fn();
const { container, rerender } = render(PendingInputs, {
inputs: [input("first")],
onDiscard,
});
await vi.advanceTimersByTimeAsync(1000);
await fireEvent.click(screen.getByRole("button", { name: "Discard saved copy" }));
expect(onDiscard).toHaveBeenCalledExactlyOnceWith("first");
await rerender({ inputs: [] });
expect(container.children).toHaveLength(0);
expect(container.textContent).toBe("");
});
it("cancels all waiting timers on unmount", async () => {
const { unmount } = render(PendingInputs, {
inputs: [input("first"), input("second")],
onDiscard: vi.fn(),
});
expect(vi.getTimerCount()).toBe(2);
await vi.advanceTimersByTimeAsync(500);
unmount();
expect(vi.getTimerCount()).toBe(0);
await vi.advanceTimersByTimeAsync(10_000);
expect(screen.queryByRole("status")).toBeNull();
});
it("gives successive inputs independent delays without restarting existing rows", async () => {
const first = input("first");
const second = input("second");
const { rerender } = render(PendingInputs, { inputs: [first], onDiscard: vi.fn() });
await vi.advanceTimersByTimeAsync(600);
await rerender({ inputs: [second, { ...first }], onDiscard: vi.fn() });
await vi.advanceTimersByTimeAsync(399);
expect(screen.queryByRole("status")).toBeNull();
await vi.advanceTimersByTimeAsync(1);
const warning = screen.getByRole("status");
expect(screen.getByRole("textbox")).toHaveValue("first");
await rerender({ inputs: [{ ...second }, { ...first }], onDiscard: vi.fn() });
await vi.advanceTimersByTimeAsync(599);
expect(screen.getAllByRole("status")).toEqual([warning]);
await vi.advanceTimersByTimeAsync(1);
expect(
screen.getAllByRole("textbox").map((node) => (node as HTMLTextAreaElement).value),
).toEqual(["second", "first"]);
// Removing the older warning must not re-hide/restart the newer warning.
await rerender({ inputs: [second] });
expect(screen.getByRole("textbox")).toHaveValue("second");
expect(vi.getTimerCount()).toBe(0);
});
it("starts a fresh delay after an earlier input was confirmed during its grace period", async () => {
const { rerender } = render(PendingInputs, { inputs: [input("first")], onDiscard: vi.fn() });
await vi.advanceTimersByTimeAsync(600);
await rerender({ inputs: [] });
await rerender({ inputs: [input("second")] });
await vi.advanceTimersByTimeAsync(999);
expect(screen.queryByRole("status")).toBeNull();
await vi.advanceTimersByTimeAsync(1);
expect(screen.getByRole("textbox")).toHaveValue("second");
});
it("keeps the original deadline when rejection arrives, and updates visible content immediately", async () => {
const pending = input("first");
const { rerender } = render(PendingInputs, { inputs: [pending], onDiscard: vi.fn() });
await vi.advanceTimersByTimeAsync(600);
await rerender({ inputs: [{ ...pending, rejection: "disk full" }] });
await vi.advanceTimersByTimeAsync(399);
expect(screen.queryByRole("status")).toBeNull();
await vi.advanceTimersByTimeAsync(1);
const warning = screen.getByRole("status");
expect(warning).toHaveTextContent("Message rejected: disk full");
expect(warning).not.toHaveTextContent("Delivery unconfirmed");
await rerender({ inputs: [{ ...pending, rejection: "still rejected" }] });
expect(screen.getByRole("status")).toBe(warning);
expect(warning).toHaveTextContent("Message rejected: still rejected");
expect(vi.getTimerCount()).toBe(0);
});
it.each([
undefined,
"disk full",
])("restored entries (rejection: %s) use the same grace period and retain recovery content", async (rejection) => {
const restored = input("restored saved message");
render(PendingInputs, {
inputs: [rejection === undefined ? restored : { ...restored, rejection }],
onDiscard: vi.fn(),
});
await vi.advanceTimersByTimeAsync(999);
expect(screen.queryByRole("status")).toBeNull();
await vi.advanceTimersByTimeAsync(1);
expect(screen.getByRole("status")).toHaveTextContent(
rejection === undefined ? "Delivery unconfirmed" : "Message rejected: disk full",
);
expect(screen.getByRole("textbox")).toHaveValue("restored saved message");
expect(screen.getByRole("button", { name: "Discard saved copy" })).toBeEnabled();
});
});
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