webmail/components/mail/__tests__/mobile-send-view.test.tsx

import React, { Suspense, lazy } from 'react';
import { fireEvent, render, screen, waitFor } from '@testing-library/react';
import { afterEach, beforeEach, describe, expect, it, vi } from 'vitest';
import type { Mailbox } from '@/lib/jmap/types';
import { useAuthStore } from '@/stores/auth-store';
import { useEmailStore } from '@/stores/email-store';
import { useSettingsStore } from '@/stores/settings-store';
import { usePluginStore } from '@/stores/plugin-store';
import { useThemeStore } from '@/stores/theme-store';
import { DEFAULT_SEARCH_FILTERS } from '@/lib/jmap/search-utils';

// After sending a new message on a phone, the reading pane the composer had
// taken over stayed on screen, empty, with no way back to the list.
vi.mock('next/dynamic', () => ({ default: (load: () => Promise<React.ComponentType<Record<string, unknown>>>) => {
  const Component = lazy(async () => ({ default: await load() }));
  return function Dynamic(props: Record<string, unknown>) {
    return <Suspense fallback={null}><Component {...props} /></Suspense>;
  };
} }));
vi.mock('@/components/email/email-composer', () => ({
  EmailComposer: ({ onSend }: { onSend?: (data: unknown) => Promise<void> }) => (
    <button onClick={() => void onSend?.({ to: ['bob@example.com'], cc: [], bcc: [], subject: 'Hi', body: 'Hello' })}>
      stub send
    </button>
  ),
}));
vi.mock('@/components/layout/sidebar', () => ({ Sidebar: () => null }));
vi.mock('@/components/layout/navigation-rail', () => ({ NavigationRail: () => null }));
vi.mock('@/components/layout/calendar-event-notification-toaster', () => ({ CalendarEventNotificationToaster: () => null }));
vi.mock('@/components/layout/share-notification-toaster', () => ({ ShareNotificationToaster: () => null }));
vi.mock('@/components/layout/mobile-header', () => ({ MobileHeader: () => null }));
vi.mock('@/components/email/message-list-tabs', () => ({ MessageListTabs: () => null }));
vi.mock('@/components/search/search-box', () => ({ SearchBox: () => null }));
vi.mock('@/components/tour/tour-provider', () => ({ useTour: () => ({ activeTour: null, registerStep: vi.fn() }) }));
vi.mock('@/components/plugins/plugin-slot', () => ({ PluginSlot: () => null }));
vi.mock('@/hooks/use-plugin-slot-offers', () => ({ usePluginSlotOffers: () => [] }));
vi.mock('@/hooks/use-config', () => ({ useConfig: () => ({ appName: 'Mail' }) }));
vi.mock('@/hooks/use-identity-sync', () => ({ useIdentitySync: () => {} }));
vi.mock('@/hooks/use-pro-multi-account-identities', () => ({ useProMultiAccountIdentities: () => [] }));
vi.mock('@/hooks/use-pro-multi-account-mailboxes', () => ({ useProMultiAccountMailboxes: () => {} }));
vi.mock('@/hooks/use-wopi-status', () => ({ useWopiStatus: () => null, canWopiOpen: () => false }));
vi.mock('@/hooks/use-browser-navigation', () => ({ useBrowserNavigation: () => {} }));
vi.mock('@/hooks/use-media-query', () => ({
  useDeviceDetection: () => ({ isMobile: true, isTablet: false, isDesktop: false }),
  useMediaQuery: () => false,
  useIsDesktop: () => false,
}));
vi.mock('@/lib/push-bindings', () => ({ reconcilePushBindings: () => {}, releasePushBindings: () => {} }));
vi.mock('@/components/email/email-list', () => ({ EmailList: () => <div>message list</div> }));

const { MailApp } = await import('../mail-app');

const inbox = { id: 'inbox', name: 'Inbox', role: 'inbox' } as Mailbox;
const sendEmail = vi.fn();

beforeEach(() => {
  vi.stubGlobal('fetch', vi.fn().mockRejectedValue(new Error('Unexpected network request')));
  vi.stubGlobal('ResizeObserver', class { observe() {} unobserve() {} disconnect() {} });
  usePluginStore.setState({ initializePlugins: vi.fn().mockResolvedValue(undefined) });
  useThemeStore.setState({ syncServerThemes: vi.fn().mockResolvedValue(undefined) });
  const client = {
    getAccountId: () => 'acc', getUsername: () => 'me@example.com',
    getSieveAccountId: () => null, hasDelayedSend: () => false, getSession: () => null,
  };
  useAuthStore.setState({
    isAuthenticated: true, isLoading: false, client: client as never, activeAccountId: 'login', identities: [],
    getClientForAccount: () => client as never,
    getAllConnectedClients: () => new Map([['login', client]]) as never,
  });
  useSettingsStore.setState({ enableUnifiedMailbox: false, mailLayout: 'split', sendDelaySeconds: 0 } as never);
  sendEmail.mockReset().mockResolvedValue({});
  useEmailStore.setState({
    emails: [], selectedEmail: null, selectedMailbox: inbox.id, mailboxes: [inbox],
    viewingAccountId: null, accountMailboxes: {}, isUnifiedView: false, unifiedRole: null,
    isScheduledView: false, isLoadingEmail: false, isLoading: false, searchQuery: '',
    searchFilters: { ...DEFAULT_SEARCH_FILTERS }, searchMailboxId: '', selectedKeyword: null,
    selectedEmailKeys: new Set(),
    fetchMailboxes: vi.fn().mockResolvedValue(undefined), fetchEmails: vi.fn().mockResolvedValue(undefined),
    fetchQuota: vi.fn().mockResolvedValue(undefined), fetchTagCounts: vi.fn().mockResolvedValue(undefined),
    refreshScheduledMetadata: vi.fn().mockResolvedValue(undefined),
    sendEmail,
  } as never);
});
afterEach(() => {
  vi.restoreAllMocks();
  vi.unstubAllGlobals();
});

/** On a phone only one of list and reading pane shows; the other gets max-md:hidden. */
const listHidden = () => screen.getByText('message list').closest('.max-md\\:hidden') !== null;

describe('sending from a phone', () => {
  it('goes back to the message list after sending a new message', async () => {
    render(<MailApp />);
    fireEvent.click(screen.getByRole('button', { name: 'sidebar.compose' }));
    await screen.findByText('stub send', {}, { timeout: 5000 });
    expect(listHidden()).toBe(true);

    fireEvent.click(screen.getByText('stub send'));

    await waitFor(() => expect(sendEmail).toHaveBeenCalled());
    await waitFor(() => expect(screen.queryByText('stub send')).not.toBeInTheDocument());
    expect(listHidden()).toBe(false);
  });
});