[Fix] {ShallowWrapper,ReactWrapper}#{type,props}() should work with null nodes

[ljharb]

Fixes #113.

^ @lelandrichardson, @goatslacker

[lelandrichardson]

i think in the Utils file there is a propsOfNode function that we should probably be using instead of this. It deals with things like null being passed in.

[ljharb]

Sounds good - will that work the same in shallow and mount?

[jedwards1211]

@ljharb I'm wondering -- why would we want wrappers with null nodes to get passed to findWhere anyway? I'm assuming there are still other methods that won't work with null nodes (I stumbled on this problem with .text()). Wouldn't it be more robust to simply not pass wrappers with null nodes?

[ljharb]

That's a good point, and may be an alternative approach.

[jedwards1211]

Yeah I was going to post an issue about .text() in .findWhere() but I could just post an issue about null nodes instead

[ljharb]

Let's do that - findWhere and filterWhere etc perhaps shouldn't return null nodes? It's worth a discussion.

[jedwards1211]

Okay, sounds good

[jedwards1211]

And thanks for this awesome project!