SyntheticEventis a wrapper utility
By Ryan Florence
Lets you render a component "one level deep" and test what its render method returns, without worrying about child components, which are not instantiated or rendered. Does not require a DOM.
…attaching code to the DOM
“Frontend bugs have occurred in the boundary between components or layers of our app – for example, between the API and the data layer, the data layer and our components, or between a parent and child component.”