1个节点的酶模拟

Question

I have the following test case in react-native.

  it('changes text', () => {
    wrapper.find(InputBox).simulate('change', { target: { value: 'text Given' } });
  });

There are 2 InputBoxes so this gives me an error saying 'simulate should run on a single node, but found 2'.

How can I fix this issue?

Answer 1

You could make use of selectors such as first or at . For instance, say you want to select the first InputBox , you will write:

 wrapper.find(InputBox).first().simulate('change', { target: { value: 'text Given' } });

In the same way you can use last to get the last of matched nodes or at(index) to select matches by index.