How to test React Native Button's simulate?

Question

I trying to test some components, and I would like to spy after an onPress but for some reason its not being called:

it('expect press', () => {
    const listItem = wrapper.find('ListItem')
    listItem.simulate('onPress')
    console.log(mockFn.mock)
})

When I debugging the component, I can clearly see that I selected the right element, but yet the simulate do not happen :/

Answer 1

Change it to

listItem.simulate('Press')