Add test for rendering a component with text nodes

[braddunbar]

The implementation of h suggests that textual children of components should not be merged. However, there is no test coverage of this behavior. So I added some!

Is that actually the case? And if so, why are text nodes of components not merged?

[coveralls]

Coverage remained the same at 100.0% when pulling e53e306 on braddunbar:h-component-test into e5c7f1d on developit:master.

[developit]

This changed in 8. I'm actually wondering if we could bring back at least some of the behavior (assuming perf & size don't bloat as a result), since your other issue (foo {0} -> ["foo ", 0]) is kinda awkward to work around.

I think we need to gather some input, and maybe check what React does in this case. I looked into this a while back and I believe they just pass children through without any normalization, which is why I made that switch in 8.

[robertknight]

LGTM. Although there is debate about the desired behaviour, documenting what is currently expected via a test is a good thing.

[coveralls]

Coverage remained the same at 100.0% when pulling 02f98c5 on braddunbar:h-component-test into 5d6a2c4 on developit:master.

[developit]

👍👍