Instance of found component equals to null using enzyme full mount

I have wizard component which i would like to test.

WizardComponent

class WizardComponent extends React.Component {
  render(){
    return (
      <div>
        {this.props.steps.map(({Component, ...props}) => <Component {...props} />)
      </div>
    )
  }
}

Test

it('Provides props to the component', () => {
 const FakeComponent = props => <div>1</div>

    const fakeProps = {
        test:1,
        prop4:'test'
    }

    const wrapper = mount(<WizardComponent currentStepName="fakeComponent" steps={[
        {Component:FakeComponent, name:'fakeComponent'},
    ]}/>)

    console.log(wrapper.contains(<FakeComponent />)) // logs true
    console.log(component) // logs ReactWrapper { length: 1 }
    console.log(component.instance()) // logs null

    expect(component.instance().props).objectContaining(fakeProps)

})

Why i can not access the component instance ?I would like to test its children components props.Can someone help?