forked from reactjs/react-transition-group
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Transition-test.js
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Transition-test.js
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import React from 'react';
import ReactDOM from 'react-dom';
import tsp from 'teaspoon';
import sinon from 'sinon';
import Transition, { UNMOUNTED, EXITED, ENTERING, ENTERED, EXITING }
from '../src/Transition';
jasmine.addMatchers({
toExist: () => ({
compare: actual => ({
pass: actual != null,
})
})
});
describe('Transition', () => {
it('should not transition on mount', () => {
let instance = tsp(
<Transition
in
timeout={0}
onEnter={()=> { throw new Error('should not Enter'); }}
>
<div></div>
</Transition>
)
.render()
expect(instance.state('status')).toEqual(ENTERED);
});
it('should transition on mount with `appear`', done => {
tsp(
<Transition
in
timeout={0}
onEnter={()=> { throw Error('Animated!') }}
>
<div />
</Transition>
)
.render();
tsp(
<Transition
in
appear
timeout={0}
onEnter={()=> done()}
>
<div />
</Transition>
)
.render();
});
it('should pass filtered props to children', () => {
class Child extends React.Component {
render() {
return <div>child</div>;
}
}
const child = tsp(
<Transition
foo="foo"
bar="bar"
in
mountOnEnter
unmountOnExit
appear
enter
exit
timeout={0}
addEndListener={() => {}}
onEnter={() => {}}
onEntering={() => {}}
onEntered={() => {}}
onExit={() => {}}
onExiting={() => {}}
onExited={() => {}}
>
<Child />
</Transition>
)
.render()
.find(Child);
expect(child.props()).toEqual({foo: 'foo', bar: 'bar'});
});
describe('entering', () => {
let instance;
beforeEach(() => {
instance = tsp(
<Transition timeout={10}>
<div/>
</Transition>
)
.render();
});
it('should fire callbacks', done => {
let onEnter = sinon.spy();
let onEntering = sinon.spy();
expect(instance.state('status')).toEqual(EXITED);
instance.props({
in: true,
onEnter,
onEntering,
onEntered() {
expect(onEnter.calledOnce).toEqual(true);
expect(onEntering.calledOnce).toEqual(true);
expect(onEnter.calledBefore(onEntering)).toEqual(true);
done();
}
});
});
it('should move to each transition state', done => {
let count = 0;
expect(instance.state('status')).toEqual(EXITED);
instance.props({
in: true,
onEnter(){
count++;
expect(instance.state('status')).toEqual(EXITED);
},
onEntering(){
count++;
expect(instance.state('status')).toEqual(ENTERING);
},
onEntered(){
expect(instance.state('status')).toEqual(ENTERED);
expect(count).toEqual(2);
done();
}
});
});
});
describe('exiting', ()=> {
let instance;
beforeEach(() => {
instance = tsp(
<Transition in timeout={10}>
<div/>
</Transition>
)
.render();
});
it('should fire callbacks', done => {
let onExit = sinon.spy();
let onExiting = sinon.spy();
expect(instance.state('status')).toEqual(ENTERED);
instance.props({
in: false,
onExit,
onExiting,
onExited(){
expect(onExit.calledOnce).toEqual(true);
expect(onExiting.calledOnce).toEqual(true);
expect(onExit.calledBefore(onExiting)).toEqual(true);
done();
}
});
});
it('should move to each transition state', done => {
let count = 0;
expect(instance.state('status')).toEqual(ENTERED);
instance.props({
in: false,
onExit(){
count++;
expect(instance.state('status')).toEqual(ENTERED);
},
onExiting(){
count++;
expect(instance.state('status')).toEqual(EXITING);
},
onExited(){
expect(instance.state('status')).toEqual(EXITED);
expect(count).toEqual(2);
done();
}
});
});
});
describe('mountOnEnter', () => {
class MountTransition extends React.Component {
constructor(props) {
super(props);
this.state = {in: props.initialIn};
}
render() {
const { ...props } = this.props;
delete props.initialIn;
return (
<Transition
ref="transition"
mountOnEnter
in={this.state.in}
timeout={10}
{...props}
>
<div />
</Transition>
);
}
getStatus = () => {
return this.refs.transition.state.status;
}
}
it('should mount when entering', done => {
const instance = tsp(
<MountTransition
initialIn={false}
onEnter={() => {
expect(instance.unwrap().getStatus()).toEqual(EXITED);
expect(instance.dom()).toExist();
done();
}}
/>
)
.render();
expect(instance.unwrap().getStatus()).toEqual(UNMOUNTED);
expect(instance.dom()).not.toExist();
instance.props({ in: true });
});
it('should stay mounted after exiting', done => {
const instance = tsp(
<MountTransition
initialIn={false}
onEntered={() => {
expect(instance.unwrap().getStatus()).toEqual(ENTERED);
expect(instance.dom()).toExist();
instance.state({ in: false });
}}
onExited={() => {
expect(instance.unwrap().getStatus()).toEqual(EXITED);
expect(instance.dom()).toExist();
done();
}}
/>
)
.render();
expect(instance.dom()).not.toExist();
instance.state({ in: true });
});
})
describe('unmountOnExit', () => {
class UnmountTransition extends React.Component {
constructor(props) {
super(props);
this.state = {in: props.initialIn};
}
render() {
const { ...props } = this.props;
delete props.initialIn;
return (
<Transition
ref="transition"
unmountOnExit
in={this.state.in}
timeout={10}
{...props}
>
<div />
</Transition>
);
}
getStatus = () => {
return this.refs.transition.state.status;
}
}
it('should mount when entering', done => {
const instance = tsp(
<UnmountTransition
initialIn={false}
onEnter={() => {
expect(instance.getStatus()).toEqual(EXITED);
expect(ReactDOM.findDOMNode(instance)).toExist();
done();
}}
/>
)
.render()
.unwrap();
expect(instance.getStatus()).toEqual(UNMOUNTED);
expect(ReactDOM.findDOMNode(instance)).toBeNull();
instance.setState({in: true});
});
it('should unmount after exiting', done => {
const instance = tsp(
<UnmountTransition
initialIn
onExited={() => {
expect(instance.getStatus()).toEqual(UNMOUNTED);
expect(ReactDOM.findDOMNode(instance)).not.toExist();
done();
}}
/>
)
.render()
.unwrap();
expect(instance.getStatus()).toEqual(ENTERED);
expect(ReactDOM.findDOMNode(instance)).toExist();
instance.setState({in: false});
});
});
});