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import React from 'react'; import { expect } from 'chai'; import { shallow } from 'enzyme'; import sinon from 'sinon-sandbox'; import DirectionProvider from '../src/DirectionProvider'; import { DIRECTIONS } from '../src/constants'; describe('<DirectionProvider>', () => { let children; beforeEach(() => { children = <div>Foo</div>; }); it('renders its children', () => { const wrapper = shallow( <DirectionProvider direction={DIRECTIONS.RTL}>{children}</DirectionProvider>, ); expect(wrapper.contains(children)).to.eq(true); }); it('renders a wrapping div with a dir attribute', () => { const direction = DIRECTIONS.RTL; const wrapper = shallow( <DirectionProvider direction={direction}>{children}</DirectionProvider>, ); expect(wrapper).to.have.type('div'); expect(wrapper).to.have.prop('dir', direction); }); it('renders a wrapping span when the inline prop is true', () => { const direction = DIRECTIONS.RTL; const wrapper = shallow( <DirectionProvider direction={direction} inline>{children}</DirectionProvider>, ); expect(wrapper).to.have.type('span'); expect(wrapper).to.have.prop('dir', direction); }); it('renders a lang attribute when the lang prop is set', () => { const direction = DIRECTIONS.RTL; const wrapper = shallow( <DirectionProvider direction={direction} lang="ar">{children}</DirectionProvider>, ); expect(wrapper).to.have.prop('lang', 'ar'); }); it('broadcasts the direction when the direction prop changes', () => { const direction = DIRECTIONS.LTR; const nextDirection = DIRECTIONS.RTL; const wrapper = shallow( <DirectionProvider direction={direction}>{children}</DirectionProvider>, ); const broadcast = wrapper.instance().broadcast; const broadcastSpy = sinon.spy(broadcast, 'setState'); wrapper.setProps({ direction: nextDirection }); expect(broadcastSpy).to.have.callCount(1); }); it('does not broadcast the direction when the direction prop stays the same', () => { const direction = DIRECTIONS.LTR; const nextDirection = DIRECTIONS.LTR; const wrapper = shallow( <DirectionProvider direction={direction}>{children}</DirectionProvider>, ); const broadcast = wrapper.instance().broadcast; const broadcastSpy = sinon.spy(broadcast, 'setState'); wrapper.setProps({ direction: nextDirection }); expect(broadcastSpy).to.have.callCount(0); }); });
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