131 lines
3.4 KiB
TypeScript
131 lines
3.4 KiB
TypeScript
import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import { EditorAutosaveController } from "../../src/serialization/editor-autosave";
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function createSavedResult(message = "Autosave updated.") {
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return {
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status: "saved" as const,
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message
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};
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}
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describe("EditorAutosaveController", () => {
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beforeEach(() => {
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vi.useFakeTimers();
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});
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afterEach(() => {
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vi.useRealTimers();
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});
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it("debounces repeated autosave schedules into one async save", async () => {
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const saveDraft = vi.fn(async () => createSavedResult());
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const autosave = new EditorAutosaveController({
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debounceMs: 200,
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saveDraft
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});
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autosave.schedule("document");
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autosave.schedule("document");
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autosave.schedule("document");
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await vi.advanceTimersByTimeAsync(199);
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expect(saveDraft).not.toHaveBeenCalled();
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await vi.advanceTimersByTimeAsync(1);
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expect(saveDraft).toHaveBeenCalledTimes(1);
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expect(saveDraft).toHaveBeenCalledWith({
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document: true,
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viewportLayout: false
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});
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});
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it("flushes a pending autosave immediately", async () => {
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const saveDraft = vi.fn(async () => createSavedResult());
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const autosave = new EditorAutosaveController({
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debounceMs: 200,
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saveDraft
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});
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autosave.schedule("viewport");
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const flushResult = await autosave.flush();
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expect(flushResult).toEqual({
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status: "saved",
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message: "Autosave updated."
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});
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expect(saveDraft).toHaveBeenCalledTimes(1);
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expect(saveDraft).toHaveBeenCalledWith({
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document: false,
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viewportLayout: true
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});
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await vi.advanceTimersByTimeAsync(200);
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expect(saveDraft).toHaveBeenCalledTimes(1);
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});
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it("reports autosave failures through the completion callback", async () => {
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const onComplete = vi.fn();
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const autosave = new EditorAutosaveController({
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debounceMs: 100,
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onComplete,
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saveDraft: async () => ({
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status: "error" as const,
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message: "Autosave could not be saved. quota exceeded"
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})
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});
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autosave.schedule("document");
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await vi.advanceTimersByTimeAsync(100);
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expect(onComplete).toHaveBeenCalledWith({
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status: "error",
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message: "Autosave could not be saved. quota exceeded"
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});
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});
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it("coalesces in-flight autosaves into one latest follow-up save", async () => {
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const resolvers: Array<(result: ReturnType<typeof createSavedResult>) => void> =
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[];
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const saveDraft = vi.fn(
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() =>
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new Promise<ReturnType<typeof createSavedResult>>((resolve) => {
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resolvers.push(resolve);
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})
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);
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const autosave = new EditorAutosaveController({
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debounceMs: 10,
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saveDraft
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});
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autosave.schedule("document");
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await vi.advanceTimersByTimeAsync(10);
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expect(saveDraft).toHaveBeenCalledTimes(1);
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expect(saveDraft).toHaveBeenLastCalledWith({
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document: true,
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viewportLayout: false
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});
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autosave.schedule("viewport");
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autosave.schedule("document");
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await vi.advanceTimersByTimeAsync(10);
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expect(saveDraft).toHaveBeenCalledTimes(1);
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resolvers[0]!(createSavedResult("first"));
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await vi.runAllTimersAsync();
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expect(saveDraft).toHaveBeenCalledTimes(2);
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expect(saveDraft).toHaveBeenLastCalledWith({
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document: true,
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viewportLayout: true
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});
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resolvers[1]!(createSavedResult("second"));
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await vi.runAllTimersAsync();
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expect(saveDraft).toHaveBeenCalledTimes(2);
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});
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});
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