toBeVisible failing when used on Pressable with style function

[kaibarnes]

• react-native or expo: react-native
• @testing-library/react-native version: 5.3.0
• jest-preset: jest-expo
• react-native version: 0.68.5
• node version: 16.16.0

What happened:

When using .toBeVisible on a Pressable using a function for the style prop we get the following error

TypeError: Cannot destructure property 'display' of 'react_native_1.StyleSheet.flatten(...)' as it is undefined.

at isStyleVisible (node_modules/@testing-library/jest-native/dist/to-be-visible.js:9:13)

Using a function in the style prop is used for checking whether the component is currently pressed, so I think it needs to be supported.

Can you help us fix this issue by submitting a pull request?

I can make a fix for this myself.

[kaibarnes]

I've made #134 which appears to fix the issue.