declarative-testing.jsx

import ReactTest, {
  DescribeReactComponent,
  WhenTheComponentIsMounted,
  TheComponentsStateDoesNotExist,
  TheComponentsStateDoesNotExist,
  TheComponentHasElement,
  WhenTheComponentIsClicked,
  TheComponentHasStateLike,
  TheComponentHasText
} from "react-test"; // to be named of course. 
// react component
const TestSuite = () => (<DescribeReactComponent componentClass={MyComponent}> // or even a Higher order component <DescribeMyComponent />
  <WhenTheComponentIsMounted>
    <TheComponentsStateDoesNotExist />
    <TheComponentHasElement type="div" length="3" />
  </WhenTheComponentIsMounted>
  <WhenTheComponentIsClicked>
    <TheComponentHasStateLike>{state, goes, here}</TheComponentHasStateLike>
    <TheComponentHasElement type="div" index="3">
      <TheComponentHasText>Potato</TheComponentHasText>
    </TheComponentHasElement>
  </WhenTheComponentIsClicked>
</DescribeReactComponent>);

ReactTest.render(TestSuite);