d144a081f1
Implements a typed mesh snapshot API in `@fusion/core` (`CentralCore.getMeshSnapshot`, `MeshSnapshot` type) and wires it through the dashboard nodes view via a new `useMeshState` hook, substantially simplifying `MeshTopology.tsx` by replacing internal state management with the centralized snapshot. Fusion-Task-Id: FN-3454
74 lines
2.6 KiB
TypeScript
74 lines
2.6 KiB
TypeScript
import { act, renderHook } from "@testing-library/react";
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import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
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import { useMeshState } from "../useMeshState";
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import * as api from "../../api";
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vi.mock("../../api", () => ({
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fetchMeshState: vi.fn(),
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}));
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const mockFetchMeshState = vi.mocked(api.fetchMeshState);
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async function flushPromises(): Promise<void> {
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await Promise.resolve();
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await Promise.resolve();
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}
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describe("useMeshState", () => {
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beforeEach(() => {
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vi.useFakeTimers({ shouldAdvanceTime: true });
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mockFetchMeshState.mockReset();
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});
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afterEach(() => {
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vi.useRealTimers();
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});
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it("loads mesh state on mount", async () => {
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mockFetchMeshState.mockResolvedValueOnce({ collectedAt: "2026-01-01T00:00:00.000Z", sourceNodeId: "local", nodes: [] });
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const { result } = renderHook(() => useMeshState());
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await act(async () => {
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await flushPromises();
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});
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expect(result.current.loading).toBe(false);
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expect(result.current.meshState?.sourceNodeId).toBe("local");
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});
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it("refresh updates state", async () => {
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mockFetchMeshState
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.mockResolvedValueOnce({ collectedAt: "2026-01-01T00:00:00.000Z", sourceNodeId: "local", nodes: [] })
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.mockResolvedValueOnce({ collectedAt: "2026-01-01T00:01:00.000Z", sourceNodeId: "local", nodes: [{ nodeId: "remote", nodeName: "Remote", nodeUrl: "http://remote", nodeType: "remote", status: "online", metrics: null, lastSeen: "2026-01-01T00:01:00.000Z", connectedAt: "2026-01-01T00:00:00.000Z", knownPeers: [] }] });
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const { result } = renderHook(() => useMeshState());
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await act(async () => {
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await flushPromises();
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});
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await act(async () => {
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await result.current.refresh();
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});
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expect(result.current.meshState?.nodes).toHaveLength(1);
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});
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it("retains stale mesh state on refresh error", async () => {
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mockFetchMeshState
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.mockResolvedValueOnce({ collectedAt: "2026-01-01T00:00:00.000Z", sourceNodeId: "local", nodes: [{ nodeId: "local", nodeName: "Local", nodeUrl: undefined, nodeType: "local", status: "online", metrics: null, lastSeen: "2026-01-01T00:00:00.000Z", connectedAt: "2026-01-01T00:00:00.000Z", knownPeers: [] }] })
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.mockRejectedValueOnce(new Error("mesh unavailable"));
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const { result } = renderHook(() => useMeshState());
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await act(async () => {
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await flushPromises();
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});
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await act(async () => {
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await result.current.refresh();
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});
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expect(result.current.error).toBe("mesh unavailable");
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expect(result.current.meshState?.nodes).toHaveLength(1);
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});
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});
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