n8n/packages/cli/test/unit/UserManagementMailer.test.ts

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import config from '@/config';
import { NodeMailer } from '@/UserManagement/email/NodeMailer';
import { UserManagementMailer } from '@/UserManagement/email/UserManagementMailer';
describe('UserManagementMailer', () => {
describe('expect NodeMailer.verifyConnection', () => {
let mockInit: jest.SpyInstance<Promise<void>, []>;
let mockVerifyConnection: jest.SpyInstance<Promise<void>, []>;
beforeAll(() => {
mockVerifyConnection = jest
.spyOn(NodeMailer.prototype, 'verifyConnection')
.mockImplementation(async () => {});
mockInit = jest.spyOn(NodeMailer.prototype, 'init').mockImplementation(async () => {});
});
afterAll(() => {
mockVerifyConnection.mockRestore();
mockInit.mockRestore();
});
test('not be called when SMTP not set up', async () => {
const userManagementMailer = new UserManagementMailer();
// NodeMailer.verifyConnection gets called only explicitly
await expect(async () => userManagementMailer.verifyConnection()).rejects.toThrow();
expect(NodeMailer.prototype.verifyConnection).toHaveBeenCalledTimes(0);
});
test('to be called when SMTP set up', async () => {
// host needs to be set, otherwise smtp is skipped
config.set('userManagement.emails.smtp.host', 'host');
config.set('userManagement.emails.mode', 'smtp');
const userManagementMailer = new UserManagementMailer();
// NodeMailer.verifyConnection gets called only explicitly
expect(async () => userManagementMailer.verifyConnection()).not.toThrow();
});
});
});