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ReactWrapper-spec.js
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ReactWrapper-spec.js
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import { describeWithDOM, describeIf } from './_helpers';
import React from 'react';
import { expect } from 'chai';
import {
mount,
render,
ReactWrapper,
} from '../src/';
import sinon from 'sinon';
import { REACT013 } from '../src/version';
describeWithDOM('mount', () => {
describe('context', () => {
const context = { name: 'foo' };
it('can pass in context', () => {
const SimpleComponent = React.createClass({
contextTypes: {
name: React.PropTypes.string,
},
render() {
return <div>{this.context.name}</div>;
},
});
const wrapper = mount(<SimpleComponent />, { context });
expect(wrapper.text()).to.equal('foo');
});
it('can pass context to the child of mounted component', () => {
const SimpleComponent = React.createClass({
contextTypes: {
name: React.PropTypes.string,
},
render() {
return <div>{this.context.name}</div>;
},
});
const ComplexComponent = React.createClass({
render() {
return <div><SimpleComponent /></div>;
},
});
const childContextTypes = {
name: React.PropTypes.string.isRequired,
};
const wrapper = mount(<ComplexComponent />, { context, childContextTypes });
expect(wrapper.find(SimpleComponent)).to.have.length(1);
});
it('should not throw if context is passed in but contextTypes is missing', () => {
const SimpleComponent = React.createClass({
render() {
return <div>{this.context.name}</div>;
},
});
expect(() => mount(<SimpleComponent />, { context })).to.not.throw(Error);
});
it('is instrospectable through context API', () => {
const SimpleComponent = React.createClass({
contextTypes: {
name: React.PropTypes.string,
},
render() {
return <div>{this.context.name}</div>;
},
});
const wrapper = mount(<SimpleComponent />, { context });
expect(wrapper.context().name).to.equal(context.name);
expect(wrapper.context('name')).to.equal(context.name);
});
describeIf(!REACT013, 'stateless components', () => {
it('works with stateless components', () => {
const Foo = ({ foo }) => (
<div>
<div className="bar">bar</div>
<div className="qoo">{foo}</div>
</div>
);
Foo.contextTypes = {
_: React.PropTypes.string,
};
const wrapper = mount(<Foo foo="qux" />, {
context: {
_: 'foo',
},
});
expect(wrapper.context('_')).to.equal('foo');
});
});
});
describeIf(!REACT013, 'stateless components', () => {
it('works with stateless components', () => {
const Foo = ({ foo }) => (
<div>
<div className="bar">bar</div>
<div className="qoo">{foo}</div>
</div>
);
const wrapper = mount(<Foo foo="qux" />);
expect(wrapper.type()).to.equal(Foo);
expect(wrapper.find('.bar')).to.have.length(1);
expect(wrapper.find('.qoo').text()).to.equal('qux');
});
it('works with nested stateless', () => {
const TestItem = () => (
<div className="item">1</div>
);
const Test = () => (
<div className="box">
<TestItem test="123" />
<TestItem />
<TestItem />
</div>
);
const wrapper = mount(<Test />);
const children = wrapper.find('.box').children();
expect(children).to.have.length(3);
expect(children.at(0).props().test).to.equal('123');
expect(wrapper.find(TestItem)).to.have.length(3);
expect(wrapper.find(TestItem).first().props().test).to.equal('123');
});
});
describe('.contains(node)', () => {
it('should allow matches on the root node', () => {
const a = <div className="foo" />;
const b = <div className="foo" />;
const c = <div className="bar" />;
expect(mount(a).contains(b)).to.equal(true);
expect(mount(a).contains(c)).to.equal(false);
});
it('should allow matches on a nested node', () => {
const wrapper = mount(
<div>
<div className="foo" />
</div>
);
const b = <div className="foo" />;
expect(wrapper.contains(b)).to.equal(true);
});
it('should match composite components', () => {
class Foo extends React.Component {
render() { return <div />; }
}
const wrapper = mount(
<div>
<Foo />
</div>
);
const b = <Foo />;
expect(wrapper.contains(b)).to.equal(true);
});
it('should do something with arrays of nodes', () => {
const wrapper = mount(
<div>
<span>Hello</span>
<div>Goodbye</div>
<span>More</span>
</div>
);
const fails = [
<span>wrong</span>,
<div>Goodbye</div>,
];
const passes1 = [
<span>Hello</span>,
<div>Goodbye</div>,
];
const passes2 = [
<div>Goodbye</div>,
<span>More</span>,
];
expect(wrapper.contains(fails)).to.equal(false);
expect(wrapper.contains(passes1)).to.equal(true);
expect(wrapper.contains(passes2)).to.equal(true);
});
});
describe('.find(selector)', () => {
it('should find an element based on a class name', () => {
const wrapper = mount(
<div>
<input className="foo" />
</div>
);
expect(wrapper.find('.foo').type()).to.equal('input');
});
it('should find an element based on a tag name', () => {
const wrapper = mount(
<div>
<input className="foo" />
</div>
);
expect(wrapper.find('input').props().className).to.equal('foo');
});
it('should find a component based on a constructor', () => {
class Foo extends React.Component {
render() { return <div />; }
}
const wrapper = mount(
<div>
<Foo className="foo" />
</div>
);
expect(wrapper.find(Foo).type()).to.equal(Foo);
});
it('should find a component based on a component displayName', () => {
class Foo extends React.Component {
render() { return <div />; }
}
const wrapper = mount(
<div>
<Foo className="foo" />
</div>
);
expect(wrapper.find('Foo').type()).to.equal(Foo);
});
it('should find component based on a react prop', () => {
const wrapper = mount(
<div>
<span htmlFor="foo" />
</div>
);
expect(wrapper.find('[htmlFor="foo"]')).to.have.length(1);
expect(wrapper.find('[htmlFor]')).to.have.length(1);
});
it('should compound tag and prop selector', () => {
const wrapper = mount(
<div>
<span htmlFor="foo" />
</div>
);
expect(wrapper.find('span[htmlFor="foo"]')).to.have.length(1);
expect(wrapper.find('span[htmlFor]')).to.have.length(1);
});
it('should support data prop selectors', () => {
const wrapper = mount(
<div>
<span data-foo="bar" />
</div>
);
expect(wrapper.find('[data-foo="bar"]')).to.have.length(1);
expect(wrapper.find('[data-foo]')).to.have.length(1);
});
it('should find components with multiple matching props', () => {
const onChange = () => ({});
const wrapper = mount(
<div>
<span htmlFor="foo" onChange={onChange} preserveAspectRatio="xMaxYMax" />
</div>
);
expect(wrapper.find('span[htmlFor="foo"][onChange]')).to.have.length(1);
expect(wrapper.find('span[htmlFor="foo"][preserveAspectRatio="xMaxYMax"]')).to.have.length(1);
});
it('should not find property when undefined', () => {
const wrapper = mount(
<div>
<span data-foo={undefined} />
</div>
);
expect(wrapper.find('[data-foo]')).to.have.length(0);
});
it('should support boolean and numeric values for matching props', () => {
const wrapper = mount(
<div>
<span value={1} />
<a value={false} />
</div>
);
expect(wrapper.find('span[value=1]')).to.have.length(1);
expect(wrapper.find('span[value=2]')).to.have.length(0);
expect(wrapper.find('a[value=false]')).to.have.length(1);
expect(wrapper.find('a[value=true]')).to.have.length(0);
});
it('should not find key or ref via property selector', () => {
class Foo extends React.Component {
render() {
const arrayOfComponents = [<div key="1" />, <div key="2" />];
return (
<div>
<div ref="foo" />
{arrayOfComponents}
</div>
);
}
}
const wrapper = mount(<Foo />);
expect(wrapper.find('div[ref="foo"]')).to.have.length(0);
expect(wrapper.find('div[key="1"]')).to.have.length(0);
expect(wrapper.find('[ref]')).to.have.length(0);
expect(wrapper.find('[key]')).to.have.length(0);
});
it('should find multiple elements based on a class name', () => {
const wrapper = mount(
<div>
<input className="foo" />
<button className="foo" />
</div>
);
expect(wrapper.find('.foo').length).to.equal(2);
});
it('should find multiple elements based on a tag name', () => {
const wrapper = mount(
<div>
<input className="foo" />
<input />
<button />
</div>
);
expect(wrapper.find('input').length).to.equal(2);
expect(wrapper.find('button').length).to.equal(1);
});
it('should find multiple elements based on a constructor', () => {
const wrapper = mount(
<div>
<input className="foo" />
<input />
<button />
</div>
);
expect(wrapper.find('input').length).to.equal(2);
expect(wrapper.find('button').length).to.equal(1);
});
it('should throw on a complex selector', () => {
const wrapper = mount(
<div>
<input className="foo" />
<input />
<button />
</div>
);
expect(() => wrapper.find('.foo .foo')).to.throw(Error);
});
it('should support object property selectors', () => {
const wrapper = mount(
<div>
<input data-test="ref" className="foo" type="text" />
<input data-test="ref" type="text" />
<button data-test="ref" prop={undefined} />
<span data-test="ref" prop={null} />
<div data-test="ref" prop={123} />
<input data-test="ref" prop={false} />
<a data-test="ref" prop />
</div>
);
expect(wrapper.find({ a: 1 })).to.have.length(0);
expect(wrapper.find({ 'data-test': 'ref' })).to.have.length(7);
expect(wrapper.find({ className: 'foo' })).to.have.length(1);
expect(wrapper.find({ prop: undefined })).to.have.length(1);
expect(wrapper.find({ prop: null })).to.have.length(1);
expect(wrapper.find({ prop: 123 })).to.have.length(1);
expect(wrapper.find({ prop: false })).to.have.length(1);
expect(wrapper.find({ prop: true })).to.have.length(1);
});
it('should support complex and nested object property selectors', () => {
const testFunction = () => ({});
const wrapper = mount(
<div>
<span more={[{ id: 1 }]} data-test="ref" prop onChange={testFunction} />
<a more={[{ id: 1 }]} data-test="ref" />
<div more={{ item: { id: 1 } }} data-test="ref" />
<input style={{ height: 20 }} data-test="ref" />
</div>
);
expect(wrapper.find({ 'data-test': 'ref' })).to.have.length(4);
expect(wrapper.find({ more: { a: 1 } })).to.have.length(0);
expect(wrapper.find({ more: [{ id: 1 }] })).to.have.length(2);
expect(wrapper.find({ more: { item: { id: 1 } } })).to.have.length(1);
expect(wrapper.find({ style: { height: 20 } })).to.have.length(1);
expect(wrapper
.find({ more: [{ id: 1 }], 'data-test': 'ref', prop: true, onChange: testFunction })
).to.have.length(1);
});
it('should throw when given empty object, null, or an array', () => {
const wrapper = mount(
<div>
<input className="foo" type="text" />
</div>
);
expect(() => wrapper.find({})).to.throw(Error);
expect(() => wrapper.find([])).to.throw(Error);
expect(() => wrapper.find(null)).to.throw(Error);
});
});
describe('.findWhere(predicate)', () => {
it('should return all elements for a truthy test', () => {
const wrapper = mount(
<div>
<input className="foo" />
<input />
</div>
);
expect(wrapper.findWhere(() => true).length).to.equal(3);
});
it('should return no elements for a falsy test', () => {
const wrapper = mount(
<div>
<input className="foo" />
<input />
</div>
);
expect(wrapper.findWhere(() => false).length).to.equal(0);
});
it('should call the predicate with the wrapped node as the first argument', () => {
const wrapper = mount(
<div>
<div className="foo bar" />
<div className="foo baz" />
<div className="foo bux" />
</div>
);
const stub = sinon.stub();
stub.returns(true);
const spy = sinon.spy(stub);
wrapper.findWhere(spy);
expect(spy.callCount).to.equal(4);
expect(spy.args[0][0]).to.be.instanceOf(ReactWrapper);
expect(spy.args[1][0]).to.be.instanceOf(ReactWrapper);
expect(spy.args[2][0]).to.be.instanceOf(ReactWrapper);
expect(spy.args[3][0]).to.be.instanceOf(ReactWrapper);
expect(spy.args[1][0].hasClass('bar')).to.equal(true);
expect(spy.args[2][0].hasClass('baz')).to.equal(true);
expect(spy.args[3][0].hasClass('bux')).to.equal(true);
});
describeIf(!REACT013, 'stateless functional components', () => {
it('finds nodes', () => {
const SFC = function SFC({ selector }) {
return (
<div>
<span data-foo={selector} />
<i data-foo={selector} />
</div>
);
};
const selector = 'blah';
const wrapper = mount(<SFC selector={selector} />);
const foundSpan = wrapper.findWhere(n => (
n.type() === 'span' && n.props()['data-foo'] === selector
));
expect(foundSpan.type()).to.equal('span');
const foundNotSpan = wrapper.findWhere(n => (
n.type() !== 'span' && n.props()['data-foo'] === selector
));
expect(foundNotSpan.type()).to.equal('i');
});
it('finds nodes when conditionally rendered', () => {
const SFC = function SFC({ selector }) {
return (
<div>
<span data-foo={selector} />
{selector === 'baz' ? <i data-foo={selector} /> : null}
</div>
);
};
const selector = 'blah';
const wrapper = mount(<SFC selector={selector} />);
const foundSpan = wrapper.findWhere(n => (
n.type() === 'span' && n.props()['data-foo'] === selector
));
expect(foundSpan.type()).to.equal('span');
const foundNotSpan = wrapper.findWhere(n => (
n.type() !== 'span' && n.props()['data-foo'] === selector
));
expect(foundNotSpan).to.have.length(0);
});
it('should return props object when props() is called', () => {
const SFC = function SFC({ data }) {
return (
<div data-foo={data}>Test SFC</div>
);
};
const content = 'blah';
const wrapper = mount(<SFC data={content} />);
expect(wrapper.props()).to.deep.equal({ data: content });
});
it('should return shallow rendered string when debug() is called', () => {
const SFC = function SFC({ data }) {
return (
<div data-foo={data}>Test SFC</div>
);
};
const content = 'blah';
const wrapper = mount(<SFC data={content} />);
expect(wrapper.debug()).to.equal(
`<SFC data="${content}">
<div data-foo="${content}">
Test SFC
</div>
</SFC>`
);
});
});
it('should not pass in null or false nodes', () => {
const wrapper = mount(
<div>
<div className="foo bar" />
{null}
{false}
</div>
);
const stub = sinon.stub();
stub.returns(true);
const spy = sinon.spy(stub);
wrapper.findWhere(spy);
expect(spy.callCount).to.equal(2);
});
});
describe('.setProps(newProps)', () => {
it('should set props for a component multiple times', () => {
class Foo extends React.Component {
render() {
return (
<div className={this.props.id}>
{this.props.id}
</div>
);
}
}
const wrapper = mount(<Foo id="foo" />);
expect(wrapper.find('.foo').length).to.equal(1);
wrapper.setProps({ id: 'bar', foo: 'bla' });
expect(wrapper.find('.bar').length).to.equal(1);
});
it('should call componentWillReceiveProps for new renders', () => {
const spy = sinon.spy();
class Foo extends React.Component {
constructor(props) {
super(props);
this.componentWillReceiveProps = spy;
}
render() {
return (
<div className={this.props.id}>
{this.props.id}
</div>
);
}
}
const nextProps = { id: 'bar', foo: 'bla' };
const wrapper = mount(<Foo id="foo" />);
expect(spy.calledOnce).to.equal(false);
wrapper.setProps(nextProps);
expect(spy.calledOnce).to.equal(true);
expect(spy.calledWith(nextProps)).to.equal(true);
});
it('should merge newProps with oldProps', () => {
class Foo extends React.Component {
render() {
return (
<div {...this.props} />
);
}
}
const wrapper = mount(<Foo a="a" b="b" />);
expect(wrapper.props().a).to.equal('a');
expect(wrapper.props().b).to.equal('b');
wrapper.setProps({ b: 'c', d: 'e' });
expect(wrapper.props().a).to.equal('a');
expect(wrapper.props().b).to.equal('c');
expect(wrapper.props().d).to.equal('e');
});
it('should throw if an exception occurs during render', () => {
class Trainwreck extends React.Component {
render() {
const { user } = this.props;
return (
<div>
{user.name.givenName}
</div>
);
}
}
const validUser = {
name: {
givenName: 'Brian',
},
};
const wrapper = mount(<Trainwreck user={validUser} />);
const setInvalidProps = () => {
wrapper.setProps({
user: {},
});
};
expect(setInvalidProps).to.throw();
});
});
describe('.setContext(newContext)', () => {
const SimpleComponent = React.createClass({
contextTypes: {
name: React.PropTypes.string,
},
render() {
return <div>{this.context.name}</div>;
},
});
it('should set context for a component multiple times', () => {
const context = { name: 'foo' };
const wrapper = mount(<SimpleComponent />, { context });
expect(wrapper.text()).to.equal('foo');
wrapper.setContext({ name: 'bar' });
expect(wrapper.text()).to.equal('bar');
wrapper.setContext({ name: 'baz' });
expect(wrapper.text()).to.equal('baz');
});
it('should throw if it is called when shallow didnt include context', () => {
const wrapper = mount(<SimpleComponent />);
expect(() => wrapper.setContext({ name: 'bar' })).to.throw(Error);
});
});
describe('.mount()', () => {
it('should call componentWillUnmount()', () => {
const willMount = sinon.spy();
const didMount = sinon.spy();
const willUnmount = sinon.spy();
class Foo extends React.Component {
constructor(props) {
super(props);
this.componentWillUnmount = willUnmount;
this.componentWillMount = willMount;
this.componentDidMount = didMount;
}
render() {
return (
<div className={this.props.id}>
{this.props.id}
</div>
);
}
}
const wrapper = mount(<Foo id="foo" />);
expect(willMount.callCount).to.equal(1);
expect(didMount.callCount).to.equal(1);
expect(willUnmount.callCount).to.equal(0);
wrapper.unmount();
expect(willMount.callCount).to.equal(1);
expect(didMount.callCount).to.equal(1);
expect(willUnmount.callCount).to.equal(1);
wrapper.mount();
expect(willMount.callCount).to.equal(2);
expect(didMount.callCount).to.equal(2);
expect(willUnmount.callCount).to.equal(1);
});
});
describe('.unmount()', () => {
it('should call componentWillUnmount()', () => {
const spy = sinon.spy();
class Foo extends React.Component {
constructor(props) {
super(props);
this.componentWillUnmount = spy;
}
render() {
return (
<div className={this.props.id}>
{this.props.id}
</div>
);
}
}
const wrapper = mount(<Foo id="foo" />);
expect(spy.calledOnce).to.equal(false);
wrapper.unmount();
expect(spy.calledOnce).to.equal(true);
});
});
describe('.simulate(eventName, data)', () => {
it('should simulate events', () => {
class Foo extends React.Component {
constructor(props) {
super(props);
this.state = { count: 0 };
this.incrementCount = this.incrementCount.bind(this);
}
incrementCount() {
this.setState({ count: this.state.count + 1 });
}
render() {
return (
<a
className={`clicks-${this.state.count}`}
onClick={this.incrementCount}
>
foo
</a>
);
}
}
const wrapper = mount(<Foo />);
expect(wrapper.find('.clicks-0').length).to.equal(1);
wrapper.simulate('click');
expect(wrapper.find('.clicks-1').length).to.equal(1);
});
it('should pass in event data', () => {
const spy = sinon.spy();
class Foo extends React.Component {
render() {
return (
<a onClick={spy}>foo</a>
);
}
}
const wrapper = mount(<Foo />);
wrapper.simulate('click', { someSpecialData: 'foo' });
expect(spy.calledOnce).to.equal(true);
expect(spy.args[0][0].someSpecialData).to.equal('foo');
});
it('should throw a descriptive error for invalid events', () => {
const wrapper = mount(<div>foo</div>);
expect(wrapper.simulate.bind(wrapper, 'invalidEvent'))
.to.throw(TypeError, "ReactWrapper::simulate() event 'invalidEvent' does not exist");
});
describe('Normalizing JS event names', () => {
it('should convert lowercase events to React camelcase', () => {
const spy = sinon.spy();
const clickSpy = sinon.spy();
class Foo extends React.Component {
render() {
return (
<a onClick={clickSpy} onDoubleClick={spy}>foo</a>
);
}
}
const wrapper = mount(<Foo />);
wrapper.simulate('dblclick');
expect(spy.calledOnce).to.equal(true);
wrapper.simulate('click');
expect(clickSpy.calledOnce).to.equal(true);
});
describeIf(!REACT013, 'normalizing mouseenter', () => {
it('should convert lowercase events to React camelcase', () => {
const spy = sinon.spy();
class Foo extends React.Component {
render() {
return (
<a onMouseEnter={spy}>foo</a>
);
}
}
const wrapper = mount(<Foo />);
wrapper.simulate('mouseenter');
expect(spy.calledOnce).to.equal(true);
});
});
});
});
describe('.setState(newState)', () => {
it('should set the state of the root node', () => {
class Foo extends React.Component {
constructor(props) {
super(props);
this.state = { id: 'foo' };
}
render() {
return (
<div className={this.state.id} />
);
}
}
const wrapper = mount(<Foo />);
expect(wrapper.find('.foo').length).to.equal(1);
wrapper.setState({ id: 'bar' });
expect(wrapper.find('.bar').length).to.equal(1);
});
it('allows setState inside of componentDidMount', () => {
// NOTE: this test is a test to ensure that the following issue is
// fixed: https://github.com/airbnb/enzyme/issues/27
class MySharona extends React.Component {
constructor(props) {
super(props);
this.state = { mounted: false };
}
componentDidMount() {
this.setState({ mounted: true });
}
render() {
return <div>{this.state.mounted ? 'a' : 'b'}</div>;
}
}
const wrapper = mount(<MySharona />);
expect(wrapper.find('div').text()).to.equal('a');
});
});
describe('.is(selector)', () => {
it('should return true when selector matches current element', () => {
const wrapper = mount(<div className="foo bar baz" />);
expect(wrapper.is('.foo')).to.equal(true);
});
it('should allow for compound selectors', () => {
const wrapper = mount(<div className="foo bar baz" />);
expect(wrapper.is('.foo.bar')).to.equal(true);
});
it('should return false when selector does not match', () => {
const wrapper = mount(<div className="bar baz" />);
expect(wrapper.is('.foo')).to.equal(false);
});
});
describe('.not(selector)', () => {
it('filters to things not matching a selector', () => {
const wrapper = mount(
<div>
<div className="foo bar baz" />
<div className="foo" />
<div className="bar baz" />
<div className="baz" />
<div className="foo bar" />
</div>
);
expect(wrapper.find('.foo').not('.bar').length).to.equal(1);
expect(wrapper.find('.baz').not('.foo').length).to.equal(2);
expect(wrapper.find('.foo').not('div').length).to.equal(0);
});
});
describe('.filter(selector)', () => {
it('should return a new wrapper of just the nodes that matched the selector', () => {
const wrapper = mount(
<div>
<div className="foo bar baz" />
<div className="foo" />
<div className="bar baz">
<div className="foo bar baz" />
<div className="foo" />
</div>
<div className="baz" />
<div className="foo bar" />
</div>
);
expect(wrapper.find('.foo').filter('.bar').length).to.equal(3);
expect(wrapper.find('.bar').filter('.foo').length).to.equal(3);
expect(wrapper.find('.bar').filter('.bax').length).to.equal(0);
expect(wrapper.find('.foo').filter('.baz.bar').length).to.equal(2);
});
it('should only look in the current wrappers nodes, not their children', () => {
const wrapper = mount(
<div>
<div className="foo">
<div className="bar" />
</div>
<div className="foo bar" />
</div>
);
expect(wrapper.find('.foo').filter('.bar').length).to.equal(1);
});
});
describe('.filterWhere(predicate)', () => {
it('should filter only the nodes of the wrapper', () => {
const wrapper = mount(
<div>
<div className="foo bar" />
<div className="foo baz" />
<div className="foo bux" />
</div>
);
const stub = sinon.stub();
stub.onCall(0).returns(false);
stub.onCall(1).returns(true);
stub.onCall(2).returns(false);
const baz = wrapper.find('.foo').filterWhere(stub);
expect(baz.length).to.equal(1);
expect(baz.hasClass('baz')).to.equal(true);
});
it('should call the predicate with the wrapper as the first argument', () => {
const wrapper = mount(
<div>
<div className="foo bar" />
<div className="foo baz" />
<div className="foo bux" />
</div>
);
const stub = sinon.stub();
stub.returns(true);
const spy = sinon.spy(stub);
wrapper.find('.foo').filterWhere(spy);
expect(spy.callCount).to.equal(3);
expect(spy.args[0][0]).to.be.instanceOf(ReactWrapper);
expect(spy.args[1][0]).to.be.instanceOf(ReactWrapper);
expect(spy.args[2][0]).to.be.instanceOf(ReactWrapper);
expect(spy.args[0][0].hasClass('bar')).to.equal(true);
expect(spy.args[1][0].hasClass('baz')).to.equal(true);