Testing with React's Jest and Enzyme when async componentDidMount

Question

• react:16.3.0-alpha.1
• jest: \"22.3.0\"
• enzyme: 3.3.0
• typescript: 2.7.1

code:

class Foo extends React.PureCompo         


        

Answer 1

Your test also needs to implement async, await.
For ex:

  it('should do something', async function() {
    const wrapper = shallow();
    const result = await wrapper.instance();
    expect(result.bar).toBe(100);
  });