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// @flow
import { expect } from 'chai';
import * as React from 'react';
import ReactDOM from 'react-dom';
import ReactTestUtils, { Simulate } from 'react-dom/test-utils';
import Switch from '../../app/components/Switch';
describe('components/Switch', () => {
let container: ?HTMLElement;
function renderIntoDocument(instance: React.Element<*>): React.Component<*, *> {
if(container) {
throw new Error('Unmount previously rendered component first.');
}
container = document.createElement('div');
if(!document.documentElement) {
throw new Error('document.documentElement cannot be null.');
}
document.documentElement.appendChild(container);
return ReactDOM.render(instance, container);
}
// unmount container and clean up DOM
afterEach(() => {
if(container) {
ReactDOM.unmountComponentAtNode(container);
container = null;
}
});
it('should switch on', (done) => {
const onChange = (isOn) => {
expect(isOn).to.be.true;
done();
};
const component = renderIntoDocument(
<Switch isOn={ false } onChange={ onChange } />
);
const domNode = ReactTestUtils.findRenderedDOMComponentWithTag(component, 'input');
// See: https://github.com/facebook/flow/pull/5841
if(domNode) {
Simulate.mouseDown(domNode, { clientX: 100, clientY: 0 });
Simulate.mouseUp(domNode, { clientX: 100, clientY: 0 });
Simulate.change(domNode, { target: { checked: true } });
}
});
it('should switch off', (done) => {
const onChange = (isOn) => {
expect(isOn).to.be.false;
done();
};
const component = renderIntoDocument(
<Switch isOn={ true } onChange={ onChange } />
);
const domNode = ReactTestUtils.findRenderedDOMComponentWithTag(component, 'input');
// See: https://github.com/facebook/flow/pull/5841
if(domNode) {
Simulate.mouseDown(domNode, { clientX: 100, clientY: 0 });
Simulate.mouseUp(domNode, { clientX: 100, clientY: 0 });
Simulate.change(domNode, { target: { checked: false } });
}
});
it('should handle left to right swipe', (done) => {
const onChange = (isOn) => {
expect(isOn).to.be.true;
done();
};
const component = renderIntoDocument(
<Switch isOn={ false } onChange={ onChange } />
);
const domNode = ReactTestUtils.findRenderedDOMComponentWithTag(component, 'input');
// See: https://github.com/facebook/flow/pull/5841
if(domNode) {
Simulate.mouseDown(domNode, { clientX: 100, clientY: 0 });
}
// Switch listens to events on document
document.dispatchEvent(new MouseEvent('mousemove', { clientX: 150, clientY: 0 }));
document.dispatchEvent(new MouseEvent('mouseup', { clientX: 150, clientY: 0 }));
});
it('should handle right to left swipe', (done) => {
const onChange = (isOn) => {
expect(isOn).to.be.false;
done();
};
const component = renderIntoDocument(
<Switch isOn={ true } onChange={ onChange } />
);
const domNode = ReactTestUtils.findRenderedDOMComponentWithTag(component, 'input');
// See: https://github.com/facebook/flow/pull/5841
if(domNode) {
Simulate.mouseDown(domNode, { clientX: 150, clientY: 0 });
}
// Switch listens to events on document
document.dispatchEvent(new MouseEvent('mousemove', { clientX: 100, clientY: 0 }));
document.dispatchEvent(new MouseEvent('mouseup', { clientX: 100, clientY: 0 }));
});
it('should timeout when user holds knob for too long without moving', (done) => {
const onChange = () => {
throw new Error('onChange should not be called on timeout.');
};
const component = renderIntoDocument(
<Switch isOn={ false } onChange={ onChange } />
);
const domNode = ReactTestUtils.findRenderedDOMComponentWithTag(component, 'input');
// See: https://github.com/facebook/flow/pull/5841
if(domNode) {
Simulate.mouseDown(domNode, { clientX: 100, clientY: 0 });
}
setTimeout(() => {
// Switch listens to events on document
document.dispatchEvent(new MouseEvent('mouseup', { clientX: 100, clientY: 0 }));
try {
// See: https://github.com/facebook/flow/pull/5841
if(domNode) {
// should not trigger onChange()
Simulate.change(domNode);
}
done();
} catch(e) {
done(e);
}
}, 1000);
});
});
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