ohif-viewer/platform/core/src/services/ServicesManager.test.js

98 lines
3.2 KiB
JavaScript

import ServicesManager from './ServicesManager';
import log from '../log';
jest.mock('./../log');
describe('ServicesManager', () => {
let servicesManager, commandsManager;
beforeEach(() => {
commandsManager = {
createContext: jest.fn(),
getContext: jest.fn(),
registerCommand: jest.fn(),
};
servicesManager = new ServicesManager(commandsManager);
log.warn.mockClear();
jest.clearAllMocks();
});
describe('registerServices()', () => {
it('calls registerService() for each service', () => {
servicesManager.registerService = jest.fn();
servicesManager.registerServices([
{ name: 'UINotificationTestService', create: jest.fn() },
{ name: 'UIModalTestService', create: jest.fn() },
]);
expect(servicesManager.registerService.mock.calls.length).toBe(2);
});
it('calls registerService() for each service passing its configuration if tuple', () => {
servicesManager.registerService = jest.fn();
const fakeConfiguration = { testing: true };
servicesManager.registerServices([
{ name: 'UINotificationTestService', create: jest.fn() },
[{ name: 'UIModalTestService', create: jest.fn() }, fakeConfiguration],
]);
expect(servicesManager.registerService.mock.calls[1][1]).toEqual(fakeConfiguration);
});
});
describe('registerService()', () => {
const fakeService = { name: 'UINotificationService', create: jest.fn() };
it('logs a warning if the service is null or undefined', () => {
const undefinedService = undefined;
const nullService = null;
servicesManager.registerService(undefinedService);
servicesManager.registerService(nullService);
expect(log.warn.mock.calls.length).toBe(2);
});
it('logs a warning if the service does not have a name', () => {
const serviceWithEmptyName = { name: '', create: jest.fn() };
const serviceWithoutName = { create: jest.fn() };
servicesManager.registerService(serviceWithEmptyName);
servicesManager.registerService(serviceWithoutName);
expect(log.warn.mock.calls.length).toBe(2);
});
it('logs a warning if the service does not have a create factory function', () => {
const serviceWithoutCreate = { name: 'UINotificationService' };
servicesManager.registerService(serviceWithoutCreate);
expect(log.warn.mock.calls.length).toBe(1);
});
it('tracks which services have been registered', () => {
servicesManager.registerService(fakeService);
expect(servicesManager.registeredServiceNames).toContain(fakeService.name);
});
it('logs a warning if the service has an name that has already been registered', () => {
servicesManager.registerService(fakeService);
servicesManager.registerService(fakeService);
expect(log.warn.mock.calls.length).toBe(1);
});
it('pass dependencies and configuration to service create factory function', () => {
const configuration = { config: 'Some configuration' };
servicesManager.registerService(fakeService, configuration);
expect(fakeService.create.mock.calls[0][0].configuration.config).toBe(configuration.config);
});
});
});