37 lines
662 B
JavaScript
37 lines
662 B
JavaScript
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import createEventHub from '~/helpers/event_hub_factory';
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import mitt from 'mitt';
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jest.mock('mitt');
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mitt.mockReturnValue({
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on: () => {},
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off: () => {},
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emit: () => {},
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});
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describe('event bus factory', () => {
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let eventBus;
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beforeEach(() => {
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eventBus = createEventHub();
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});
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afterEach(() => {
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eventBus = null;
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});
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it('creates an emitter', () => {
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expect(mitt).toHaveBeenCalled();
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});
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it.each`
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method
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${'on'}
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${'off'}
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${'emit'}
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`('binds $$method to $method ', ({ method }) => {
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expect(typeof eventBus[method]).toBe('function');
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expect(eventBus[method]).toBe(eventBus[`$${method}`]);
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});
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});
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