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ttrpg-initiative-tracker/src/tests/SelectionFollowsActiveDisplay.test.js
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// RED test: campaign selection must follow activeDisplay.activeCampaignId changes.
// Bug: once selected, new activeDisplay writes ignored (guard `!selectedCampaignId`).
// Scenario: replay tool writes activeDisplay to new campaign -> UI must switch.
import React from 'react';
import { screen, waitFor } from '@testing-library/react';
import '@testing-library/jest-dom';
import { MOCK_DB } from '../__mocks__/firebase/_mock-db';
import { renderApp, createCampaignViaUI, selectCampaignByName } from './testHelpers';
const PUBLIC_DATA = 'artifacts/ttrpg-initiative-tracker-default/public/data';
describe('Selection follows activeDisplay (BUG-12)', () => {
test('new activeCampaignId switches selection', async () => {
await renderApp();
const idA = await createCampaignViaUI('Campaign A');
const idB = await createCampaignViaUI('Campaign B');
// seed activeDisplay so useFirestoreDocument has a value to emit
const activePath = Object.keys(MOCK_DB._state.docs).find(p => p.includes('/activeDisplay/status'))
|| `${PUBLIC_DATA}/activeDisplay/status`;
MOCK_DB.set(activePath, { activeCampaignId: null, activeEncounterId: null });
// manually select A first
await selectCampaignByName('Campaign A');
expect(screen.getByText(/Managing:/i).textContent).toMatch(/Campaign A/);
// simulate replay/another-DM setting activeDisplay to B
MOCK_DB.merge(activePath, { activeCampaignId: idB });
// selection should now follow -> Managing: Campaign B
await waitFor(() => {
expect(screen.getByText(/Managing:/i).textContent).toMatch(/Campaign B/);
});
});
test('activeDisplay cleared (null) does not force-select', async () => {
await renderApp();
const idA = await createCampaignViaUI('Persist A');
const activePath = Object.keys(MOCK_DB._state.docs).find(p => p.includes('/activeDisplay/status'))
|| `${PUBLIC_DATA}/activeDisplay/status`;
MOCK_DB.set(activePath, { activeCampaignId: null, activeEncounterId: null });
await selectCampaignByName('Persist A');
MOCK_DB.merge(activePath, { activeCampaignId: null });
// should stay on A (manual selection persists)
expect(screen.getByText(/Managing:/i).textContent).toMatch(/Persist A/);
});
});