File size: 1,633 Bytes
1e92f2d | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 | import React from 'react';
import Enzyme, { shallow } from 'enzyme';
import Adapter from '@wojtekmaj/enzyme-adapter-react-17';
import ScrollTo from '../ScrollTo';
Enzyme.configure({ adapter: new Adapter() });
describe('ScrollTo', () => {
it('expect to render', () => {
const wrapper = shallow(
<ScrollTo value={4} hasNotChanged={true}>
content
</ScrollTo>
);
expect(wrapper).toMatchSnapshot();
});
it('expect to call scrollIntoView', () => {
const wrapper = shallow(
<ScrollTo value={4} hasNotChanged={true}>
content
</ScrollTo>
);
// Simulate ref
wrapper.instance().el = {
scrollIntoView: jest.fn(),
};
wrapper.setProps({ value: 5 });
expect(wrapper.instance().el.scrollIntoView).toHaveBeenCalled();
});
it('expect to not call scrollIntoView when previous value do not have changed', () => {
const wrapper = shallow(
<ScrollTo value={4} hasNotChanged={true}>
content
</ScrollTo>
);
// Simulate ref
wrapper.instance().el = {
scrollIntoView: jest.fn(),
};
wrapper.setProps({ value: 4 });
expect(wrapper.instance().el.scrollIntoView).not.toHaveBeenCalled();
});
it('expect to not call scrollIntoView when hasNotChanged is false', () => {
const wrapper = shallow(
<ScrollTo value={4} hasNotChanged={false}>
content
</ScrollTo>
);
// Simulate ref
wrapper.instance().el = {
scrollIntoView: jest.fn(),
};
wrapper.setProps({ value: 5 });
expect(wrapper.instance().el.scrollIntoView).not.toHaveBeenCalled();
});
});
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