import {
handleChangeWatcher,
__resetChangeWatcher,
} from "../src/tools/change-watcher.js";
import { formatMCPResponse } from "../src/types/api.js";
// Mock ChangeWatcher implementation to avoid real FS/network usage
const startMock = jest.fn();
const stopMock = jest.fn();
const triggerMock = jest.fn().mockResolvedValue({ ok: true });
const installHookMock = jest.fn().mockResolvedValue("/tmp/hook");
jest.mock("../src/utils/change-watcher.js", () => {
return {
ChangeWatcher: jest.fn().mockImplementation(() => ({
start: startMock,
stop: stopMock,
getStatus: () => ({ running: true }),
triggerManual: triggerMock,
installGitHook: installHookMock,
})),
};
});
const baseArgs = {
projectPath: "/repo",
docsPath: "/repo/docs",
};
describe("change_watcher tool handler", () => {
afterEach(() => {
jest.clearAllMocks();
__resetChangeWatcher();
});
it("returns status when not started", async () => {
const res = await handleChangeWatcher({ ...baseArgs, action: "status" });
const parsed = JSON.parse(res.content[0].text);
expect(parsed.success).toBe(true);
expect(parsed.data).toEqual({ running: false });
expect(startMock).not.toHaveBeenCalled();
});
it("starts watcher and reports running status", async () => {
const res = await handleChangeWatcher({ ...baseArgs, action: "start" });
const parsed = JSON.parse(res.content[0].text);
expect(parsed.success).toBe(true);
expect(startMock).toHaveBeenCalledTimes(1);
expect(parsed.data).toEqual({ running: true });
});
it("triggers manual detection", async () => {
await handleChangeWatcher({ ...baseArgs, action: "start" });
const res = await handleChangeWatcher({
...baseArgs,
action: "trigger",
reason: "test",
});
const parsed = JSON.parse(res.content[0].text);
expect(triggerMock).toHaveBeenCalledWith("test", undefined);
expect(parsed.data).toEqual({ ok: true });
});
it("installs git hook", async () => {
await handleChangeWatcher({ ...baseArgs, action: "start" });
const res = await handleChangeWatcher({
...baseArgs,
action: "install_hook",
});
const parsed = JSON.parse(res.content[0].text);
expect(installHookMock).toHaveBeenCalledWith("post-commit");
expect(parsed.data).toEqual({ hook: "/tmp/hook" });
});
it("stops watcher", async () => {
await handleChangeWatcher({ ...baseArgs, action: "start" });
const res = await handleChangeWatcher({ ...baseArgs, action: "stop" });
const parsed = JSON.parse(res.content[0].text);
expect(stopMock).toHaveBeenCalled();
expect(parsed.data).toEqual({ running: false });
});
});
