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import React from 'react';
import { mount } from 'enzyme';
import Anchor from '..';
const { Link } = Anchor;
describe('Anchor Render', () => {
it('Anchor render perfectly', () => {
const wrapper = mount(
<Anchor>
<Link href="#API" title="API" />
</Anchor>
);
wrapper.find('a[href="#API"]').simulate('click');
wrapper.instance().handleScroll();
expect(wrapper.instance().state).not.toBe(null);
});
it('Anchor render perfectly for complete href - click', () => {
const wrapper = mount(
<Anchor>
<Link href="http://www.example.com/#API" title="API" />
</Anchor>
);
wrapper.find('a[href="http://www.example.com/#API"]').simulate('click');
expect(wrapper.instance().state.activeLink).toBe('http://www.example.com/#API');
});
it('Anchor render perfectly for complete href - scroll', () => {
let root = document.getElementById('root');
if (!root) {
root = document.createElement('div', { id: 'root' });
root.id = 'root';
document.body.appendChild(root);
}
mount(<div id="API">Hello</div>, { attachTo: root });
const wrapper = mount(
<Anchor>
<Link href="http://www.example.com/#API" title="API" />
</Anchor>
);
wrapper.instance().handleScroll();
expect(wrapper.instance().state.activeLink).toBe('http://www.example.com/#API');
});
it('Anchor render perfectly for complete href - scrollTo', async () => {
const scrollToSpy = jest.spyOn(window, 'scrollTo');
let root = document.getElementById('root');
if (!root) {
root = document.createElement('div', { id: 'root' });
root.id = 'root';
document.body.appendChild(root);
}
mount(<div id="API">Hello</div>, { attachTo: root });
const wrapper = mount(
<Anchor>
<Link href="##API" title="API" />
</Anchor>
);
wrapper.instance().handleScrollTo('##API');
expect(wrapper.instance().state.activeLink).toBe('##API');
expect(scrollToSpy).not.toHaveBeenCalled();
await new Promise(resolve => setTimeout(resolve, 50));
expect(scrollToSpy).toHaveBeenCalled();
expect(wrapper.instance().animating).toBe(true);
await new Promise(resolve => setTimeout(resolve, 500));
expect(wrapper.instance().animating).toBe(false);
});
it('should remove listener when unmount', async () => {
const wrapper = mount(
<Anchor>
<Link href="#API" title="API" />
</Anchor>
);
const removeListenerSpy = jest.spyOn(wrapper.instance().scrollEvent, 'remove');
wrapper.unmount();
expect(removeListenerSpy).toHaveBeenCalled();
});
it('should unregister link when unmount children', async () => {
const wrapper = mount(
<Anchor>
<Link href="#API" title="API" />
</Anchor>
);
expect(wrapper.instance().links).toEqual(['#API']);
wrapper.setProps({ children: null });
expect(wrapper.instance().links).toEqual([]);
});
});