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import React from 'react';
import { render, waitFor } from './utils';
import CSSTransition from '../src/CSSTransition';
import TransitionGroup from '../src/TransitionGroup';
describe('CSSTransition', () => {
it('should flush new props to the DOM before initiating a transition', (done) => {
const nodeRef = React.createRef();
const { setProps } = render(
<CSSTransition
in={false}
nodeRef={nodeRef}
timeout={0}
classNames="test"
onEnter={() => {
expect(nodeRef.current.classList.contains('test-class')).toEqual(
true
);
expect(nodeRef.current.classList.contains('test-entering')).toEqual(
false
);
done();
}}
>
<div ref={nodeRef} />
</CSSTransition>
);
expect(nodeRef.current.classList.contains('test-class')).toEqual(false);
setProps({
in: true,
className: 'test-class',
});
});
describe('entering', () => {
it('should apply classes at each transition state', async () => {
let count = 0;
let done = false;
const nodeRef = React.createRef();
const { setProps } = render(
<CSSTransition nodeRef={nodeRef} timeout={10} classNames="test">
<div ref={nodeRef} />
</CSSTransition>
);
setProps({
in: true,
onEnter() {
count++;
expect(nodeRef.current.className).toEqual('test-enter');
},
onEntering() {
count++;
expect(nodeRef.current.className).toEqual(
'test-enter test-enter-active'
);
},
onEntered() {
expect(nodeRef.current.className).toEqual('test-enter-done');
expect(count).toEqual(2);
done = true;
},
});
await waitFor(() => {
expect(done).toBe(true);
});
});
it('should apply custom classNames names', async () => {
let count = 0;
const nodeRef = React.createRef();
const { setProps } = render(
<CSSTransition
timeout={10}
nodeRef={nodeRef}
classNames={{
enter: 'custom',
enterActive: 'custom-super-active',
enterDone: 'custom-super-done',
}}
>
<div ref={nodeRef} />
</CSSTransition>
);
setProps({
in: true,
onEnter() {
count++;
expect(nodeRef.current.className).toEqual('custom');
},
onEntering() {
count++;
expect(nodeRef.current.className).toEqual(
'custom custom-super-active'
);
},
onEntered() {
expect(nodeRef.current.className).toEqual('custom-super-done');
},
});
await waitFor(() => {
expect(count).toEqual(2);
});
});
});
describe('appearing', () => {
it('should apply appear classes at each transition state', async () => {
let count = 0;
const nodeRef = React.createRef();
render(
<CSSTransition
timeout={10}
nodeRef={nodeRef}
classNames="appear-test"
in={true}
appear={true}
onEnter={(isAppearing) => {
count++;
expect(isAppearing).toEqual(true);
expect(nodeRef.current.className).toEqual('appear-test-appear');
}}
onEntering={(isAppearing) => {
count++;
expect(isAppearing).toEqual(true);
expect(nodeRef.current.className).toEqual(
'appear-test-appear appear-test-appear-active'
);
}}
onEntered={(isAppearing) => {
expect(isAppearing).toEqual(true);
expect(nodeRef.current.className).toEqual(
'appear-test-appear-done appear-test-enter-done'
);
}}
>
<div ref={nodeRef} />
</CSSTransition>
);
await waitFor(() => {
expect(count).toEqual(2);
});
});
it('should lose the "*-appear-done" class after leaving and entering again', async () => {
const nodeRef = React.createRef();
let entered = false;
let exited = false;
const { setProps } = render(
<CSSTransition
timeout={10}
nodeRef={nodeRef}
classNames="appear-test"
in={true}
appear={true}
onEntered={() => {
entered = true;
}}
>
<div ref={nodeRef} />
</CSSTransition>
);
await waitFor(() => {
expect(entered).toEqual(true);
});
setProps({
in: false,
onEntered: () => {},
onExited: () => {
exited = true;
},
});
await waitFor(() => {
expect(exited).toEqual(true);
});
expect(nodeRef.current.className).toBe('appear-test-exit-done');
entered = false;
setProps({
in: true,
onEntered: () => {
entered = true;
},
});
await waitFor(() => {
expect(entered).toEqual(true);
});
expect(nodeRef.current.className).toBe('appear-test-enter-done');
});
it('should not add undefined when appearDone is not defined', async () => {
const nodeRef = React.createRef();
let done = false;
render(
<CSSTransition
timeout={10}
nodeRef={nodeRef}
classNames={{ appear: 'appear-test' }}
in={true}
appear={true}
onEnter={(isAppearing) => {
expect(isAppearing).toEqual(true);
expect(nodeRef.current.className).toEqual('appear-test');
}}
onEntered={(isAppearing) => {
expect(isAppearing).toEqual(true);
expect(nodeRef.current.className).toEqual('');
done = true;
}}
>
<div ref={nodeRef} />
</CSSTransition>
);
await waitFor(() => {
expect(done).toEqual(true);
});
});
it('should not be appearing in normal enter mode', async () => {
let count = 0;
const nodeRef = React.createRef();
render(
<CSSTransition
timeout={10}
nodeRef={nodeRef}
classNames="not-appear-test"
appear={true}
>
<div ref={nodeRef} />
</CSSTransition>
).setProps({
in: true,
onEnter(isAppearing) {
count++;
expect(isAppearing).toEqual(false);
expect(nodeRef.current.className).toEqual('not-appear-test-enter');
},
onEntering(isAppearing) {
count++;
expect(isAppearing).toEqual(false);
expect(nodeRef.current.className).toEqual(
'not-appear-test-enter not-appear-test-enter-active'
);
},
onEntered(isAppearing) {
expect(isAppearing).toEqual(false);
expect(nodeRef.current.className).toEqual(
'not-appear-test-enter-done'
);
},
});
await waitFor(() => {
expect(count).toEqual(2);
});
});
it('should not enter the transition states when appear=false', () => {
const nodeRef = React.createRef();
render(
<CSSTransition
timeout={10}
nodeRef={nodeRef}
classNames="appear-fail-test"
in={true}
appear={false}
onEnter={() => {
throw Error('Enter called!');
}}
onEntering={() => {
throw Error('Entring called!');
}}
onEntered={() => {
throw Error('Entred called!');
}}
>
<div ref={nodeRef} />
</CSSTransition>
);
});
});
describe('exiting', () => {
it('should apply classes at each transition state', async () => {
let count = 0;
const nodeRef = React.createRef();
const { setProps } = render(
<CSSTransition in nodeRef={nodeRef} timeout={10} classNames="test">
<div ref={nodeRef} />
</CSSTransition>
);
setProps({
in: false,
onExit() {
count++;
expect(nodeRef.current.className).toEqual('test-exit');
},
onExiting() {
count++;
expect(nodeRef.current.className).toEqual(
'test-exit test-exit-active'
);
},
onExited() {
expect(nodeRef.current.className).toEqual('test-exit-done');
},
});
await waitFor(() => {
expect(count).toEqual(2);
});
});
it('should apply custom classNames names', async () => {
let count = 0;
const nodeRef = React.createRef();
const { setProps } = render(
<CSSTransition
in
nodeRef={nodeRef}
timeout={10}
classNames={{
exit: 'custom',
exitActive: 'custom-super-active',
exitDone: 'custom-super-done',
}}
>
<div ref={nodeRef} />
</CSSTransition>
);
setProps({
in: false,
onExit() {
count++;
expect(nodeRef.current.className).toEqual('custom');
},
onExiting() {
count++;
expect(nodeRef.current.className).toEqual(
'custom custom-super-active'
);
},
onExited() {
expect(nodeRef.current.className).toEqual('custom-super-done');
},
});
await waitFor(() => {
expect(count).toEqual(2);
});
});
it('should support empty prefix', async () => {
let count = 0;
const nodeRef = React.createRef();
const { setProps } = render(
<CSSTransition in nodeRef={nodeRef} timeout={10}>
<div ref={nodeRef} />
</CSSTransition>
);
setProps({
in: false,
onExit() {
count++;
expect(nodeRef.current.className).toEqual('exit');
},
onExiting() {
count++;
expect(nodeRef.current.className).toEqual('exit exit-active');
},
onExited() {
expect(nodeRef.current.className).toEqual('exit-done');
},
});
await waitFor(() => {
expect(count).toEqual(2);
});
});
});
describe('reentering', () => {
it('should remove dynamically applied classes', async () => {
let count = 0;
class Test extends React.Component {
render() {
const { direction, text, nodeRef, ...props } = this.props;
return (
<TransitionGroup
component={null}
childFactory={(child) =>
React.cloneElement(child, {
classNames: direction,
})
}
>
<CSSTransition
key={text}
timeout={100}
nodeRef={nodeRef}
{...props}
>
<span ref={nodeRef}>{text}</span>
</CSSTransition>
</TransitionGroup>
);
}
}
const nodeRef = {
foo: React.createRef(),
bar: React.createRef(),
};
const { setProps } = render(
<Test direction="down" text="foo" nodeRef={nodeRef.foo} />
);
setProps({
direction: 'up',
text: 'bar',
nodeRef: nodeRef.bar,
onEnter() {
count++;
expect(nodeRef.bar.current.className).toEqual('up-enter');
},
onEntering() {
count++;
expect(nodeRef.bar.current.className).toEqual(
'up-enter up-enter-active'
);
},
});
await waitFor(() => {
expect(count).toEqual(2);
});
setProps({
direction: 'down',
text: 'foo',
nodeRef: nodeRef.foo,
onEntering() {
count++;
expect(nodeRef.foo.current.className).toEqual(
'down-enter down-enter-active'
);
},
onEntered() {
count++;
expect(nodeRef.foo.current.className).toEqual('down-enter-done');
},
});
await waitFor(() => {
expect(count).toEqual(4);
});
});
});
});
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